bonob/tests/subsonic.test.ts

import { Md5 } from "ts-md5/dist/md5";
import { v4 as uuid } from "uuid";
import tmp from "tmp";
import fse from "fs-extra";
import path from "path";

import {
  isDodgyImage,
  Subsonic,
  t,
  BROWSER_HEADERS,
  DODGY_IMAGE_NAME,
  asGenre,
  appendMimeTypeToClientFor,
  asURLSearchParams,
  splitCoverArtId,
  cachingImageFetcher,
  asTrack,
} from "../src/subsonic";

import axios from "axios";
jest.mock("axios");

import sharp from "sharp";
jest.mock("sharp");

import randomString from "../src/random_string";
jest.mock("../src/random_string");

import {
  Album,
  Artist,
  AuthSuccess,
  Images,
  albumToAlbumSummary,
  asArtistAlbumPairs,
  Track,
  AlbumSummary,
  artistToArtistSummary,
  AlbumQuery,
  PlaylistSummary,
  Playlist,
  SimilarArtist,
  Rating,
} from "../src/music_service";
import {
  aGenre,
  anAlbum,
  anArtist,
  aPlaylist,
  aPlaylistSummary,
  aTrack,
  POP,
  ROCK,
} from "./builders";
import { b64Encode } from "../src/b64";

describe("t", () => {
  it("should be an md5 of the password and the salt", () => {
    const p = "password123";
    const s = "saltydog";
    expect(t(p, s)).toEqual(Md5.hashStr(`${p}${s}`));
  });
});

describe("isDodgyImage", () => {
  describe("when ends with 2a96cbd8b46e442fc41c2b86b821562f.png", () => {
    it("is dodgy", () => {
      expect(
        isDodgyImage("http://something/2a96cbd8b46e442fc41c2b86b821562f.png")
      ).toEqual(true);
    });
  });
  describe("when does not end with 2a96cbd8b46e442fc41c2b86b821562f.png", () => {
    it("is dodgy", () => {
      expect(isDodgyImage("http://something/somethingelse.png")).toEqual(false);
      expect(
        isDodgyImage(
          "http://something/2a96cbd8b46e442fc41c2b86b821562f.png?withsomequerystring=true"
        )
      ).toEqual(false);
    });
  });
});

describe("appendMimeTypeToUserAgentFor", () => {
  describe("when empty array", () => {
    it("should return bonob", () => {
      expect(appendMimeTypeToClientFor([])(aTrack())).toEqual("bonob");
    });
  });

  describe("when contains some mimeTypes", () => {
    const streamUserAgent = appendMimeTypeToClientFor([
      "audio/flac",
      "audio/ogg",
    ]);

    describe("and the track mimeType is in the array", () => {
      it("should return bonob+mimeType", () => {
        expect(streamUserAgent(aTrack({ mimeType: "audio/flac" }))).toEqual(
          "bonob+audio/flac"
        );
        expect(streamUserAgent(aTrack({ mimeType: "audio/ogg" }))).toEqual(
          "bonob+audio/ogg"
        );
      });
    });

    describe("and the track mimeType is not in the array", () => {
      it("should return bonob", () => {
        expect(streamUserAgent(aTrack({ mimeType: "audio/mp3" }))).toEqual(
          "bonob"
        );
      });
    });
  });
});

describe("asURLSearchParams", () => {
  describe("empty q", () => {
    it("should return empty params", () => {
      const q = {};
      const expected = new URLSearchParams();
      expect(asURLSearchParams(q)).toEqual(expected);
    });
  });

  describe("singular params", () => {
    it("should append each", () => {
      const q = {
        a: 1,
        b: "bee",
        c: false,
        d: true,
      };
      const expected = new URLSearchParams();
      expected.append("a", "1");
      expected.append("b", "bee");
      expected.append("c", "false");
      expected.append("d", "true");

      expect(asURLSearchParams(q)).toEqual(expected);
    });
  });

  describe("list params", () => {
    it("should append each", () => {
      const q = {
        a: [1, "two", false, true],
        b: "yippee",
      };

      const expected = new URLSearchParams();
      expected.append("a", "1");
      expected.append("a", "two");
      expected.append("a", "false");
      expected.append("a", "true");
      expected.append("b", "yippee");

      expect(asURLSearchParams(q)).toEqual(expected);
    });
  });
});

describe("cachingImageFetcher", () => {
  const delegate = jest.fn();
  const url = "http://test.example.com/someimage.jpg";

  beforeEach(() => {
    jest.clearAllMocks();
    jest.resetAllMocks();
  });

  describe("when there is no image in the cache", () => {
    it("should fetch the image from the source and then cache and return it", async () => {
      const dir = tmp.dirSync();
      const cacheFile = path.join(dir.name, `${Md5.hashStr(url)}.png`);
      const jpgImage = Buffer.from("jpg-image", "utf-8");
      const pngImage = Buffer.from("png-image", "utf-8");

      delegate.mockResolvedValue({ contentType: "image/jpeg", data: jpgImage });
      const png = jest.fn();
      (sharp as unknown as jest.Mock).mockReturnValue({ png });
      png.mockReturnValue({
        toBuffer: () => Promise.resolve(pngImage),
      });

      const result = await cachingImageFetcher(dir.name, delegate)(url);

      expect(result!.contentType).toEqual("image/png");
      expect(result!.data).toEqual(pngImage);

      expect(delegate).toHaveBeenCalledWith(url);
      expect(fse.existsSync(cacheFile)).toEqual(true);
      expect(fse.readFileSync(cacheFile)).toEqual(pngImage);
    });
  });

  describe("when the image is already in the cache", () => {
    it("should fetch the image from the cache and return it", async () => {
      const dir = tmp.dirSync();
      const cacheFile = path.join(dir.name, `${Md5.hashStr(url)}.png`);
      const data = Buffer.from("foobar2", "utf-8");

      fse.writeFileSync(cacheFile, data);

      const result = await cachingImageFetcher(dir.name, delegate)(url);

      expect(result!.contentType).toEqual("image/png");
      expect(result!.data).toEqual(data);

      expect(delegate).not.toHaveBeenCalled();
    });
  });

  describe("when the delegate returns undefined", () => {
    it("should return undefined", async () => {
      const dir = tmp.dirSync();
      const cacheFile = path.join(dir.name, `${Md5.hashStr(url)}.png`);

      delegate.mockResolvedValue(undefined);

      const result = await cachingImageFetcher(dir.name, delegate)(url);

      expect(result).toBeUndefined();

      expect(delegate).toHaveBeenCalledWith(url);
      expect(fse.existsSync(cacheFile)).toEqual(false);
    });
  });
});

const ok = (data: string | object) => ({
  status: 200,
  data,
});

const asSimilarArtistJson = (similarArtist: SimilarArtist) => {
  if (similarArtist.inLibrary)
    return {
      id: similarArtist.id,
      name: similarArtist.name,
      albumCount: 3,
    };
  else
    return {
      id: -1,
      name: similarArtist.name,
      albumCount: 3,
    };
};

const getArtistInfoJson = (artist: Artist) =>
  subsonicOK({
    artistInfo2: {
      smallImageUrl: artist.image.small,
      mediumImageUrl: artist.image.medium,
      largeImageUrl: artist.image.large,
      similarArtist: artist.similarArtists.map(asSimilarArtistJson),
    },
  });

const maybeIdFromCoverArtId = (coverArt: string | undefined) =>
  coverArt ? splitCoverArtId(coverArt)[1] : "";

const asAlbumJson = (
  artist: { id: string | undefined, name: string | undefined },
  album: AlbumSummary,
  tracks: Track[] = []
) => ({
  id: album.id,
  parent: artist.id,
  isDir: "true",
  title: album.name,
  name: album.name,
  album: album.name,
  artist: artist.name,
  genre: album.genre?.name,
  coverArt: maybeIdFromCoverArtId(album.coverArt),
  duration: "123",
  playCount: "4",
  year: album.year,
  created: "2021-01-07T08:19:55.834207205Z",
  artistId: artist.id,
  songCount: "19",
  isVideo: false,
  song: tracks.map(asSongJson),
});

const asSongJson = (track: Track) => ({
  id: track.id,
  parent: track.album.id,
  title: track.name,
  album: track.album.name,
  artist: track.artist.name,
  track: track.number,
  genre: track.genre?.name,
  isDir: "false",
  coverArt: maybeIdFromCoverArtId(track.coverArt),
  created: "2004-11-08T23:36:11",
  duration: track.duration,
  bitRate: 128,
  size: "5624132",
  suffix: "mp3",
  contentType: track.mimeType,
  isVideo: "false",
  path: "ACDC/High voltage/ACDC - The Jack.mp3",
  albumId: track.album.id,
  artistId: track.artist.id,
  type: "music",
  starred: track.rating.love ? "sometime" : undefined,
  userRating: track.rating.stars,
  year: ""
});

const getAlbumListJson = (albums: [Artist, Album][]) =>
  subsonicOK({
    albumList2: {
      album: albums.map(([artist, album]) => asAlbumJson(artist, album)),
    },
  });

const asArtistJson = (artist: Artist) => ({
  id: artist.id,
  name: artist.name,
  albumCount: artist.albums.length,
  artistImageUrl: "...",
  album: artist.albums.map((it) => asAlbumJson(artist, it)),
});

const getArtistJson = (artist: Artist) =>
  subsonicOK({
    artist: asArtistJson(artist),
  });

const asGenreJson = (genre: { name: string; albumCount: number }) => ({
  songCount: 1475,
  albumCount: genre.albumCount,
  value: genre.name,
});

const getGenresJson = (genres: { name: string; albumCount: number }[]) =>
  subsonicOK({
    genres: {
      genre: genres.map(asGenreJson),
    },
  });

const getAlbumJson = (artist: Artist, album: Album, tracks: Track[]) =>
  subsonicOK({ album: asAlbumJson(artist, album, tracks) });

const getSongJson = (track: Track) => subsonicOK({ song: asSongJson(track) });

// const getStarredJson = ({ albums }: { albums: Album[] }) => subsonicOK({starred2: {
//   album: albums.map(it => asAlbumJson({ id: it.artistId, name: it.artistName }, it, [])),
//   song: [],
// }})

const subsonicOK = (body: any = {}) => ({
  "subsonic-response": {
    status: "ok",
    version: "1.16.1",
    type: "navidrome",
    serverVersion: "0.45.1 (c55e6590)",
    ...body,
  },
});

const getSimilarSongsJson = (tracks: Track[]) =>
  subsonicOK({ similarSongs2: { song: tracks.map(asSongJson) } });

const getTopSongsJson = (tracks: Track[]) =>
  subsonicOK({ topSongs: { song: tracks.map(asSongJson) } });

export type ArtistWithAlbum = {
  artist: Artist;
  album: Album;
};

const asPlaylistJson = (playlist: PlaylistSummary) => ({
  id: playlist.id,
  name: playlist.name,
  songCount: 1,
  duration: 190,
  public: true,
  owner: "bob",
  created: "2021-05-06T02:07:24.308007023Z",
  changed: "2021-05-06T02:08:06Z",
});

const getPlayListsJson = (playlists: PlaylistSummary[]) =>
  subsonicOK({
    playlists: {
      playlist: playlists.map(asPlaylistJson),
    },
  });

const createPlayListJson = (playlist: PlaylistSummary) =>
  subsonicOK({
    playlist: asPlaylistJson(playlist),
  });

const getPlayListJson = (playlist: Playlist) =>
  subsonicOK({
    playlist: {
      id: playlist.id,
      name: playlist.name,
      songCount: playlist.entries.length,
      duration: 627,
      public: true,
      owner: "bob",
      created: "2021-05-06T02:07:30.460465988Z",
      changed: "2021-05-06T02:40:04Z",
      entry: playlist.entries.map((it) => ({
        id: it.id,
        parent: "...",
        isDir: false,
        title: it.name,
        album: it.album.name,
        artist: it.artist.name,
        track: it.number,
        year: it.album.year,
        genre: it.album.genre?.name,
        coverArt: splitCoverArtId(it.coverArt!)[1],
        size: 123,
        contentType: it.mimeType,
        suffix: "mp3",
        duration: it.duration,
        bitRate: 128,
        path: "...",
        discNumber: 1,
        created: "2019-09-04T04:07:00.138169924Z",
        albumId: it.album.id,
        artistId: it.artist.id,
        type: "music",
        isVideo: false,
        starred: it.rating.love ? "sometime" : undefined,
        userRating: it.rating.stars,
      })),
    },
  });

const getSearchResult3Json = ({
  artists,
  albums,
  tracks,
}: Partial<{
  artists: Artist[];
  albums: ArtistWithAlbum[];
  tracks: Track[];
}>) =>
  subsonicOK({
    searchResult3: {
      artist: (artists || []).map((it) => asArtistJson({ ...it, albums: [] })),
      album: (albums || []).map((it) => asAlbumJson(it.artist, it.album, [])),
      song: (tracks || []).map((it) => asSongJson(it)),
    },
  });

const asArtistsJson = (artists: Artist[]) => {
  const as: Artist[] = [];
  const bs: Artist[] = [];
  const cs: Artist[] = [];
  const rest: Artist[] = [];
  artists.forEach((it) => {
    const firstChar = it.name.toLowerCase()[0];
    switch (firstChar) {
      case "a":
        as.push(it);
        break;
      case "b":
        bs.push(it);
        break;
      case "c":
        cs.push(it);
        break;
      default:
        rest.push(it);
        break;
    }
  });

  const asArtistSummary = (artist: Artist) => ({
    id: artist.id,
    name: artist.name,
    albumCount: artist.albums.length,
  });

  return subsonicOK({
    artists: {
      index: [
        {
          name: "A",
          artist: as.map(asArtistSummary),
        },
        {
          name: "B",
          artist: bs.map(asArtistSummary),
        },
        {
          name: "C",
          artist: cs.map(asArtistSummary),
        },
        {
          name: "D-Z",
          artist: rest.map(asArtistSummary),
        },
      ],
    },
  });
};

const error = (code: string, message: string) => ({
  "subsonic-response": {
    status: "failed",
    version: "1.16.1",
    type: "navidrome",
    serverVersion: "0.45.1 (c55e6590)",
    error: { code, message },
  },
});

const EMPTY = {
  "subsonic-response": {
    status: "ok",
    version: "1.16.1",
    type: "navidrome",
    serverVersion: "0.45.1 (c55e6590)",
  },
};

const FAILURE = {
  "subsonic-response": {
    status: "failed",
    version: "1.16.1",
    type: "navidrome",
    serverVersion: "0.45.1 (c55e6590)",
    error: { code: 10, message: 'Missing required parameter "v"' },
  },
};

const PING_OK = subsonicOK({});

describe("splitCoverArtId", () => {
  it("should split correctly", () => {
    expect(splitCoverArtId("foo:bar")).toEqual(["foo", "bar"]);
    expect(splitCoverArtId("foo:bar:car:jar")).toEqual(["foo", "bar:car:jar"]);
  });

  it("should blow up when the id is invalid", () => {
    expect(() => splitCoverArtId("")).toThrow(`'' is an invalid coverArt id`);
    expect(() => splitCoverArtId("foo:")).toThrow(
      `'foo:' is an invalid coverArt id`
    );
    expect(() => splitCoverArtId("foo:")).toThrow(
      `'foo:' is an invalid coverArt id`
    );
    expect(() => splitCoverArtId(":dog")).toThrow(
      `':dog' is an invalid coverArt id`
    );
  });
});

describe("asTrack", () => {
  const album = anAlbum();
  const track = aTrack();

  describe("invalid rating.stars values", () => {
    describe("a value greater than 5", () => {
      it("should be returned as 0", () => {
        const result = asTrack(album, { ...asSongJson(track), userRating: 6 });
        expect(result.rating.stars).toEqual(0)
      });
    });

    describe("a value less than 0", () => {
      it("should be returned as 0", () => {
        const result = asTrack(album, { ...asSongJson(track), userRating: -1 });
        expect(result.rating.stars).toEqual(0)
      });
    });
  });
});

describe("Subsonic", () => {
  const url = "http://127.0.0.22:4567";
  const username = "user1";
  const password = "pass1";
  const salt = "saltysalty";

  const streamClientApplication = jest.fn();
  const navidrome = new Subsonic(
    url,
    streamClientApplication
  );

  const mockedRandomString = randomString as unknown as jest.Mock;
  const mockGET = jest.fn();
  const mockPOST = jest.fn();

  beforeEach(() => {
    jest.clearAllMocks();
    jest.resetAllMocks();

    axios.get = mockGET;
    axios.post = mockPOST;

    mockedRandomString.mockReturnValue(salt);
  });

  const authParams = {
    u: username,
    v: "1.16.1",
    c: "bonob",
    t: t(password, salt),
    s: salt,
  };

  const authParamsPlusJson = {
    ...authParams,
    f: "json",
  };

  const headers = {
    "User-Agent": "bonob",
  };

  describe("generateToken", () => {
    describe("when the credentials are valid", () => {
      it("should be able to generate a token and then login using it", async () => {
        (axios.get as jest.Mock).mockResolvedValue(ok(PING_OK));

        const token = (await navidrome.generateToken({
          username,
          password,
        })) as AuthSuccess;

        expect(token.authToken).toBeDefined();
        expect(token.nickname).toEqual(username);
        expect(token.userId).toEqual(username);

        expect(axios.get).toHaveBeenCalledWith(`${url}/rest/ping.view`, {
          params: asURLSearchParams(authParamsPlusJson),
          headers,
        });
      });
    });

    describe("when the credentials are not valid", () => {
      it("should be able to generate a token and then login using it", async () => {
        (axios.get as jest.Mock).mockResolvedValue({
          status: 200,
          data: error("40", "Wrong username or password"),
        });

        const token = await navidrome.generateToken({ username, password });
        expect(token).toEqual({
          message: "Subsonic error:Wrong username or password",
        });
      });
    });
  });

  describe("getting genres", () => {
    describe("when there are none", () => {
      beforeEach(() => {
        mockGET
          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
          .mockImplementationOnce(() => Promise.resolve(ok(getGenresJson([]))));
      });

      it("should return empty array", async () => {
        const result = await navidrome
          .generateToken({ username, password })
          .then((it) => it as AuthSuccess)
          .then((it) => navidrome.login(it.authToken))
          .then((it) => it.genres());

        expect(result).toEqual([]);

        expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getGenres`, {
          params: asURLSearchParams(authParamsPlusJson),
          headers,
        });
      });
    });

    describe("when there is only 1 that has an albumCount > 0", () => {
      const genres = [
        { name: "genre1", albumCount: 1 },
        { name: "genreWithNoAlbums", albumCount: 0 },
      ];

      beforeEach(() => {
        mockGET
          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getGenresJson(genres)))
          );
      });

      it("should return them alphabetically sorted", async () => {
        const result = await navidrome
          .generateToken({ username, password })
          .then((it) => it as AuthSuccess)
          .then((it) => navidrome.login(it.authToken))
          .then((it) => it.genres());

        expect(result).toEqual([{ id: b64Encode("genre1"), name: "genre1" }]);

        expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getGenres`, {
          params: asURLSearchParams(authParamsPlusJson),
          headers,
        });
      });
    });

    describe("when there are many that have an albumCount > 0", () => {
      const genres = [
        { name: "g1", albumCount: 1 },
        { name: "g2", albumCount: 1 },
        { name: "g3", albumCount: 1 },
        { name: "g4", albumCount: 1 },
        { name: "someGenreWithNoAlbums", albumCount: 0 },
      ];

      beforeEach(() => {
        mockGET
          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getGenresJson(genres)))
          );
      });

      it("should return them alphabetically sorted", async () => {
        const result = await navidrome
          .generateToken({ username, password })
          .then((it) => it as AuthSuccess)
          .then((it) => navidrome.login(it.authToken))
          .then((it) => it.genres());

        expect(result).toEqual([
          { id: b64Encode("g1"), name: "g1" },
          { id: b64Encode("g2"), name: "g2" },
          { id: b64Encode("g3"), name: "g3" },
          { id: b64Encode("g4"), name: "g4" },
        ]);

        expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getGenres`, {
          params: asURLSearchParams(authParamsPlusJson),
          headers,
        });
      });
    });
  });

  describe("getting an artist", () => {
    describe("when the artist exists", () => {
      describe("and has many similar artists", () => {
        const album1: Album = anAlbum({ genre: asGenre("Pop") });

        const album2: Album = anAlbum({ genre: asGenre("Pop") });

        const artist: Artist = anArtist({
          albums: [album1, album2],
          image: {
            small: `http://localhost:80/${DODGY_IMAGE_NAME}`,
            medium: `http://localhost:80/${DODGY_IMAGE_NAME}`,
            large: `http://localhost:80/${DODGY_IMAGE_NAME}`,
          },
          similarArtists: [
            { id: "similar1.id", name: "similar1", inLibrary: true },
            { id: "-1", name: "similar2", inLibrary: false },
            { id: "similar3.id", name: "similar3", inLibrary: true },
            { id: "-1", name: "similar4", inLibrary: false },
          ],
        });

        beforeEach(() => {
          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getArtistJson(artist)))
            )
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getArtistInfoJson(artist)))
            );
        });

        it("should return the similar artists", async () => {
          const result: Artist = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.artist(artist.id));

          expect(result).toEqual({
            id: `${artist.id}`,
            name: artist.name,
            image: {
              small: undefined,
              medium: undefined,
              large: undefined,
            },
            albums: artist.albums,
            similarArtists: artist.similarArtists,
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtist`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              id: artist.id,
            }),
            headers,
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtistInfo2`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              id: artist.id,
              count: 50,
              includeNotPresent: true,
            }),
            headers,
          });
        });
      });

      describe("and has one similar artist", () => {
        const album1: Album = anAlbum({ genre: asGenre("G1") });

        const album2: Album = anAlbum({ genre: asGenre("G2") });

        const artist: Artist = anArtist({
          albums: [album1, album2],
          image: {
            small: `http://localhost:80/${DODGY_IMAGE_NAME}`,
            medium: `http://localhost:80/${DODGY_IMAGE_NAME}`,
            large: `http://localhost:80/${DODGY_IMAGE_NAME}`,
          },
          similarArtists: [
            { id: "similar1.id", name: "similar1", inLibrary: true },
          ],
        });

        beforeEach(() => {
          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getArtistJson(artist)))
            )
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getArtistInfoJson(artist)))
            );
        });

        it("should return the similar artists", async () => {
          const result: Artist = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.artist(artist.id));

          expect(result).toEqual({
            id: artist.id,
            name: artist.name,
            image: {
              small: undefined,
              medium: undefined,
              large: undefined,
            },
            albums: artist.albums,
            similarArtists: artist.similarArtists,
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtist`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              id: artist.id,
            }),
            headers,
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtistInfo2`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              id: artist.id,
              count: 50,
              includeNotPresent: true,
            }),
            headers,
          });
        });
      });

      describe("and has no similar artists", () => {
        const album1: Album = anAlbum({ genre: asGenre("Jock") });

        const album2: Album = anAlbum({ genre: asGenre("Mock") });

        const artist: Artist = anArtist({
          albums: [album1, album2],
          image: {
            small: `http://localhost:80/${DODGY_IMAGE_NAME}`,
            medium: `http://localhost:80/${DODGY_IMAGE_NAME}`,
            large: `http://localhost:80/${DODGY_IMAGE_NAME}`,
          },
          similarArtists: [],
        });

        beforeEach(() => {
          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getArtistJson(artist)))
            )
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getArtistInfoJson(artist)))
            );
        });

        it("should return the similar artists", async () => {
          const result: Artist = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.artist(artist.id));

          expect(result).toEqual({
            id: artist.id,
            name: artist.name,
            image: {
              small: undefined,
              medium: undefined,
              large: undefined,
            },
            albums: artist.albums,
            similarArtists: artist.similarArtists,
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtist`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              id: artist.id,
            }),
            headers,
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtistInfo2`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              id: artist.id,
              count: 50,
              includeNotPresent: true,
            }),
            headers,
          });
        });
      });

      describe("and has dodgy looking artist image uris", () => {
        const album1: Album = anAlbum({ genre: asGenre("Pop") });

        const album2: Album = anAlbum({ genre: asGenre("Flop") });

        const artist: Artist = anArtist({
          albums: [album1, album2],
          image: {
            small: `http://localhost:80/${DODGY_IMAGE_NAME}`,
            medium: `http://localhost:80/${DODGY_IMAGE_NAME}`,
            large: `http://localhost:80/${DODGY_IMAGE_NAME}`,
          },
          similarArtists: [],
        });

        beforeEach(() => {
          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getArtistJson(artist)))
            )
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getArtistInfoJson(artist)))
            );
        });

        it("should return remove the dodgy looking image uris and return undefined", async () => {
          const result: Artist = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.artist(artist.id));

          expect(result).toEqual({
            id: artist.id,
            name: artist.name,
            image: {
              small: undefined,
              medium: undefined,
              large: undefined,
            },
            albums: artist.albums,
            similarArtists: [],
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtist`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              id: artist.id,
            }),
            headers,
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtistInfo2`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              id: artist.id,
              count: 50,
              includeNotPresent: true,
            }),
            headers,
          });
        });
      });

      describe("and has multiple albums", () => {
        const album1: Album = anAlbum({ genre: asGenre("Pop") });

        const album2: Album = anAlbum({ genre: asGenre("Flop") });

        const artist: Artist = anArtist({
          albums: [album1, album2],
          similarArtists: [],
        });

        beforeEach(() => {
          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getArtistJson(artist)))
            )
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getArtistInfoJson(artist)))
            );
        });

        it("should return it", async () => {
          const result: Artist = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.artist(artist.id));

          expect(result).toEqual({
            id: artist.id,
            name: artist.name,
            image: artist.image,
            albums: artist.albums,
            similarArtists: [],
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtist`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              id: artist.id,
            }),
            headers,
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtistInfo2`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              id: artist.id,
              count: 50,
              includeNotPresent: true,
            }),
            headers,
          });
        });
      });

      describe("and has only 1 album", () => {
        const album: Album = anAlbum({ genre: asGenre("Pop") });

        const artist: Artist = anArtist({
          albums: [album],
          similarArtists: [],
        });

        beforeEach(() => {
          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getArtistJson(artist)))
            )
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getArtistInfoJson(artist)))
            );
        });

        it("should return it", async () => {
          const result: Artist = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.artist(artist.id));

          expect(result).toEqual({
            id: artist.id,
            name: artist.name,
            image: artist.image,
            albums: artist.albums,
            similarArtists: [],
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtist`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              id: artist.id,
            }),
            headers,
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtistInfo2`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              id: artist.id,
              count: 50,
              includeNotPresent: true,
            }),
            headers,
          });
        });
      });

      describe("and has no albums", () => {
        const artist: Artist = anArtist({
          albums: [],
          similarArtists: [],
        });

        beforeEach(() => {
          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getArtistJson(artist)))
            )
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getArtistInfoJson(artist)))
            );
        });

        it("should return it", async () => {
          const result: Artist = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.artist(artist.id));

          expect(result).toEqual({
            id: artist.id,
            name: artist.name,
            image: artist.image,
            albums: [],
            similarArtists: [],
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtist`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              id: artist.id,
            }),
            headers,
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtistInfo2`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              id: artist.id,
              count: 50,
              includeNotPresent: true,
            }),
            headers,
          });
        });
      });
    });
  });

  describe("getting artists", () => {
    describe("when there are indexes, but no artists", () => {
      beforeEach(() => {
        mockGET
          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
          .mockImplementationOnce(() =>
            Promise.resolve(
              ok(
                subsonicOK({
                  artists: {
                    index: [
                      {
                        name: "#",
                      },
                      {
                        name: "A",
                      },
                      {
                        name: "B",
                      },
                    ],
                  },
                })
              )
            )
          );
      });

      it("should return empty", async () => {
        const artists = await navidrome
          .generateToken({ username, password })
          .then((it) => it as AuthSuccess)
          .then((it) => navidrome.login(it.authToken))
          .then((it) => it.artists({ _index: 0, _count: 100 }));

        expect(artists).toEqual({
          results: [],
          total: 0,
        });
      });
    });

    describe("when there no indexes and no artists", () => {
      beforeEach(() => {
        mockGET
          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
          .mockImplementationOnce(() =>
            Promise.resolve(
              ok(
                subsonicOK({
                  artists: {},
                })
              )
            )
          );
      });

      it("should return empty", async () => {
        const artists = await navidrome
          .generateToken({ username, password })
          .then((it) => it as AuthSuccess)
          .then((it) => navidrome.login(it.authToken))
          .then((it) => it.artists({ _index: 0, _count: 100 }));

        expect(artists).toEqual({
          results: [],
          total: 0,
        });
      });
    });

    describe("when there is one index and one artist", () => {
      const artist1 = anArtist();

      const asArtistsJson = subsonicOK({
        artists: {
          index: [
            {
              name: "#",
              artist: [
                {
                  id: artist1.id,
                  name: artist1.name,
                  albumCount: 22,
                },
              ],
            },
          ],
        },
      });

      describe("when it all fits on one page", () => {
        beforeEach(() => {
          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() => Promise.resolve(ok(asArtistsJson)));
        });

        it("should return the single artist", async () => {
          const artists = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.artists({ _index: 0, _count: 100 }));

          const expectedResults = [artist1].map((it) => ({
            id: it.id,
            name: it.name,
          }));

          expect(artists).toEqual({
            results: expectedResults,
            total: 1,
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtists`, {
            params: asURLSearchParams(authParamsPlusJson),
            headers,
          });
        });
      });
    });

    describe("when there are artists", () => {
      const artist1 = anArtist({ name: "A Artist" });
      const artist2 = anArtist({ name: "B Artist" });
      const artist3 = anArtist({ name: "C Artist" });
      const artist4 = anArtist({ name: "D Artist" });
      const artists = [artist1, artist2, artist3, artist4];

      describe("when no paging is in effect", () => {
        beforeEach(() => {
          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(asArtistsJson(artists)))
            );
        });

        it("should return all the artists", async () => {
          const artists = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.artists({ _index: 0, _count: 100 }));

          const expectedResults = [artist1, artist2, artist3, artist4].map(
            (it) => ({
              id: it.id,
              name: it.name,
            })
          );

          expect(artists).toEqual({
            results: expectedResults,
            total: 4,
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtists`, {
            params: asURLSearchParams(authParamsPlusJson),
            headers,
          });
        });
      });

      describe("when paging specified", () => {
        beforeEach(() => {
          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(asArtistsJson(artists)))
            );
        });

        it("should return only the correct page of artists", async () => {
          const artists = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.artists({ _index: 1, _count: 2 }));

          const expectedResults = [artist2, artist3].map((it) => ({
            id: it.id,
            name: it.name,
          }));

          expect(artists).toEqual({ results: expectedResults, total: 4 });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtists`, {
            params: asURLSearchParams(authParamsPlusJson),
            headers,
          });
        });
      });
    });
  });

  describe("getting albums", () => {
    describe("filtering", () => {
      const album1 = anAlbum({ id: "album1", genre: asGenre("Pop") });
      const album2 = anAlbum({ id: "album2", genre: asGenre("Rock") });
      const album3 = anAlbum({ id: "album3", genre: asGenre("Pop") });
      const album4 = anAlbum({ id: "album4", genre: asGenre("Pop") });
      const album5 = anAlbum({ id: "album5", genre: asGenre("Pop") });

      const artist = anArtist({ albums: [album1, album2, album3, album4, album5] });

      describe("by genre", () => {
        beforeEach(() => {
          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(asArtistsJson([artist])))
            )
            .mockImplementationOnce(() =>
              Promise.resolve(
                ok(
                  getAlbumListJson([
                    [artist, album1],
                    // album2 is not Pop
                    [artist, album3],
                  ])
                )
              )
            );
        });

        it("should map the 64 encoded genre back into the subsonic genre", async () => {
          const q: AlbumQuery = {
            _index: 0,
            _count: 100,
            genre: b64Encode("Pop"),
            type: "byGenre",
          };
          const result = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.albums(q));

          expect(result).toEqual({
            results: [album1, album3].map(albumToAlbumSummary),
            total: 2,
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtists`, {
            params: asURLSearchParams(authParamsPlusJson),
            headers,
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getAlbumList2`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              type: "byGenre",
              genre: "Pop",
              size: 500,
              offset: 0,
            }),
            headers,
          });
        });
      });

      describe("by newest", () => {
        beforeEach(() => {
          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(asArtistsJson([artist])))
            )
            .mockImplementationOnce(() =>
              Promise.resolve(
                ok(
                  getAlbumListJson([
                    [artist, album3],
                    [artist, album2],
                    [artist, album1],
                  ])
                )
              )
            );
        });

        it("should pass the filter to navidrome", async () => {
          const q: AlbumQuery = { _index: 0, _count: 100, type: "recentlyAdded" };
          const result = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.albums(q));

          expect(result).toEqual({
            results: [album3, album2, album1].map(albumToAlbumSummary),
            total: 3,
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtists`, {
            params: asURLSearchParams(authParamsPlusJson),
            headers,
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getAlbumList2`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              type: "newest",
              size: 500,
              offset: 0,
            }),
            headers,
          });
        });
      });

      describe("by recently played", () => {
        beforeEach(() => {
          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(asArtistsJson([artist])))
            )
            .mockImplementationOnce(() =>
              Promise.resolve(
                ok(
                  getAlbumListJson([
                    [artist, album3],
                    [artist, album2],
                    // album1 never played
                  ])
                )
              )
            );
        });

        it("should pass the filter to navidrome", async () => {
          const q: AlbumQuery = { _index: 0, _count: 100, type: "recentlyPlayed" };
          const result = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.albums(q));

          expect(result).toEqual({
            results: [album3, album2].map(albumToAlbumSummary),
            total: 2,
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtists`, {
            params: asURLSearchParams(authParamsPlusJson),
            headers,
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getAlbumList2`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              type: "recent",
              size: 500,
              offset: 0,
            }),
            headers,
          });
        });
      });

      describe("by frequently played", () => {
        beforeEach(() => {
          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(asArtistsJson([artist])))
            )
            .mockImplementationOnce(
              () =>
                // album1 never played
                Promise.resolve(ok(getAlbumListJson([[artist, album2]])))
              // album3 never played
            );
        });

        it("should pass the filter to navidrome", async () => {
          const q: AlbumQuery = { _index: 0, _count: 100, type: "mostPlayed" };
          const result = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.albums(q));

          expect(result).toEqual({
            results: [album2].map(albumToAlbumSummary),
            total: 1,
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtists`, {
            params: asURLSearchParams(authParamsPlusJson),
            headers,
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getAlbumList2`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              type: "frequent",
              size: 500,
              offset: 0,
            }),
            headers,
          });
        });
      });

      describe("by starred", () => {
        beforeEach(() => {
          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(asArtistsJson([artist])))
            )
            .mockImplementationOnce(
              () =>
                // album1 never played
                Promise.resolve(ok(getAlbumListJson([[artist, album2]])))
              // album3 never played
            );
        });

        it("should pass the filter to navidrome", async () => {
          const q: AlbumQuery = { _index: 0, _count: 100, type: "starred" };
          const result = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.albums(q));

          expect(result).toEqual({
            results: [album2].map(albumToAlbumSummary),
            total: 1,
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtists`, {
            params: asURLSearchParams(authParamsPlusJson),
            headers,
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getAlbumList2`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              type: "highest",
              size: 500,
              offset: 0,
            }),
            headers,
          });
        });
      });
    });

    describe("when the artist has only 1 album", () => {
      const artist = anArtist({
        name: "one hit wonder",
        albums: [anAlbum({ genre: asGenre("Pop") })],
      });
      const artists = [artist];
      const albums = artists.flatMap((artist) => artist.albums);

      beforeEach(() => {
        mockGET
          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
          .mockImplementationOnce(() =>
            Promise.resolve(ok(asArtistsJson(artists)))
          )
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getAlbumListJson(asArtistAlbumPairs(artists))))
          );
      });

      it("should return the album", async () => {
        const q: AlbumQuery = {
          _index: 0,
          _count: 100,
          type: "alphabeticalByArtist",
        };
        const result = await navidrome
          .generateToken({ username, password })
          .then((it) => it as AuthSuccess)
          .then((it) => navidrome.login(it.authToken))
          .then((it) => it.albums(q));

        expect(result).toEqual({
          results: albums,
          total: 1,
        });

        expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtists`, {
          params: asURLSearchParams(authParamsPlusJson),
          headers,
        });

        expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getAlbumList2`, {
          params: asURLSearchParams({
            ...authParamsPlusJson,
            type: "alphabeticalByArtist",
            size: 500,
            offset: 0,
          }),
          headers,
        });
      });
    });

    describe("when the only artist has no albums", () => {
      const artist = anArtist({
        name: "no hit wonder",
        albums: [],
      });
      const artists = [artist];
      const albums = artists.flatMap((artist) => artist.albums);

      beforeEach(() => {
        mockGET
          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
          .mockImplementationOnce(() =>
            Promise.resolve(ok(asArtistsJson(artists)))
          )
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getAlbumListJson(asArtistAlbumPairs(artists))))
          );
      });

      it("should return the album", async () => {
        const q: AlbumQuery = {
          _index: 0,
          _count: 100,
          type: "alphabeticalByArtist",
        };
        const result = await navidrome
          .generateToken({ username, password })
          .then((it) => it as AuthSuccess)
          .then((it) => navidrome.login(it.authToken))
          .then((it) => it.albums(q));

        expect(result).toEqual({
          results: albums,
          total: 0,
        });

        expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtists`, {
          params: asURLSearchParams(authParamsPlusJson),
          headers,
        });

        expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getAlbumList2`, {
          params: asURLSearchParams({
            ...authParamsPlusJson,
            type: "alphabeticalByArtist",
            size: 500,
            offset: 0,
          }),
          headers,
        });
      });
    });

    describe("when there are 6 albums in total", () => {
      const genre1 = asGenre("genre1");
      const genre2 = asGenre("genre2");
      const genre3 = asGenre("genre3");

      const artist1 = anArtist({
        name: "abba",
        albums: [
          anAlbum({ name: "album1", genre: genre1 }),
          anAlbum({ name: "album2", genre: genre2 }),
          anAlbum({ name: "album3", genre: genre3 }),
        ],
      });
      const artist2 = anArtist({
        name: "babba",
        albums: [
          anAlbum({ name: "album4", genre: genre1 }),
          anAlbum({ name: "album5", genre: genre2 }),
          anAlbum({ name: "album6", genre: genre3 }),
        ],
      });
      const artists = [artist1, artist2];
      const albums = artists.flatMap((artist) => artist.albums);

      describe("querying for all of them", () => {
        it("should return all of them with corrent paging information", async () => {
          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(asArtistsJson(artists)))
            )
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getAlbumListJson(asArtistAlbumPairs(artists))))
            );

          const q: AlbumQuery = {
            _index: 0,
            _count: 100,
            type: "alphabeticalByArtist",
          };
          const result = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.albums(q));

          expect(result).toEqual({
            results: albums,
            total: 6,
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtists`, {
            params: asURLSearchParams(authParamsPlusJson),
            headers,
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getAlbumList2`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              type: "alphabeticalByArtist",
              size: 500,
              offset: 0,
            }),
            headers,
          });
        });
      });

      describe("querying for a page of them", () => {
        it("should return the page with the corrent paging information", async () => {
          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(asArtistsJson(artists)))
            )
            .mockImplementationOnce(() =>
              Promise.resolve(
                ok(
                  getAlbumListJson([
                    [artist1, artist1.albums[2]!],
                    [artist2, artist2.albums[0]!],
                    // due to pre-fetch will get next 2 albums also
                    [artist2, artist2.albums[1]!],
                    [artist2, artist2.albums[2]!],
                  ])
                )
              )
            );

          const q: AlbumQuery = {
            _index: 2,
            _count: 2,
            type: "alphabeticalByArtist",
          };
          const result = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.albums(q));

          expect(result).toEqual({
            results: [artist1.albums[2], artist2.albums[0]],
            total: 6,
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtists`, {
            params: asURLSearchParams(authParamsPlusJson),
            headers,
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getAlbumList2`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              type: "alphabeticalByArtist",
              size: 500,
              offset: 2,
            }),
            headers,
          });
        });
      });
    });

    describe("when the number of albums reported by getArtists does not match that of getAlbums", () => {
      const genre = asGenre("lofi");

      const album1 = anAlbum({ name: "album1", genre });
      const album2 = anAlbum({ name: "album2", genre });
      const album3 = anAlbum({ name: "album3", genre });
      const album4 = anAlbum({ name: "album4", genre });
      const album5 = anAlbum({ name: "album5", genre });

      // the artists have 5 albums in the getArtists endpoint
      const artist1 = anArtist({
        albums: [album1, album2, album3, album4],
      });
      const artist2 = anArtist({
        albums: [album5],
      });
      const artists = [artist1, artist2];

      describe("when the number of albums returned from getAlbums is less the number of albums in the getArtists endpoint", () => {
        describe("when the query comes back on 1 page", () => {
          beforeEach(() => {
            mockGET
              .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
              .mockImplementationOnce(() =>
                Promise.resolve(ok(asArtistsJson(artists)))
              )
              .mockImplementationOnce(() =>
                Promise.resolve(
                  ok(
                    getAlbumListJson([
                      [artist1, album1],
                      [artist1, album2],
                      [artist1, album3],
                      // album4 is missing from the albums end point for some reason
                      [artist2, album5],
                    ])
                  )
                )
              );
          });

          it("should return the page of albums, updating the total to be accurate", async () => {
            const q: AlbumQuery = {
              _index: 0,
              _count: 100,
              type: "alphabeticalByArtist",
            };
            const result = await navidrome
              .generateToken({ username, password })
              .then((it) => it as AuthSuccess)
              .then((it) => navidrome.login(it.authToken))
              .then((it) => it.albums(q));

            expect(result).toEqual({
              results: [album1, album2, album3, album5],
              total: 4,
            });

            expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtists`, {
              params: asURLSearchParams(authParamsPlusJson),
              headers,
            });

            expect(axios.get).toHaveBeenCalledWith(
              `${url}/rest/getAlbumList2`,
              {
                params: asURLSearchParams({
                  ...authParamsPlusJson,
                  type: "alphabeticalByArtist",
                  size: 500,
                  offset: q._index,
                }),
                headers,
              }
            );
          });
        });

        describe("when the query is for the first page", () => {
          beforeEach(() => {
            mockGET
              .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
              .mockImplementationOnce(() =>
                Promise.resolve(ok(asArtistsJson(artists)))
              )
              .mockImplementationOnce(() =>
                Promise.resolve(
                  ok(
                    getAlbumListJson([
                      [artist1, album1],
                      [artist1, album2],
                      // album3 & album5 is returned due to the prefetch
                      [artist1, album3],
                      // album4 is missing from the albums end point for some reason
                      [artist2, album5],
                    ])
                  )
                )
              );
          });

          it("should filter out the pre-fetched albums", async () => {
            const q: AlbumQuery = {
              _index: 0,
              _count: 2,
              type: "alphabeticalByArtist",
            };
            const result = await navidrome
              .generateToken({ username, password })
              .then((it) => it as AuthSuccess)
              .then((it) => navidrome.login(it.authToken))
              .then((it) => it.albums(q));

            expect(result).toEqual({
              results: [album1, album2],
              total: 4,
            });

            expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtists`, {
              params: asURLSearchParams(authParamsPlusJson),
              headers,
            });

            expect(axios.get).toHaveBeenCalledWith(
              `${url}/rest/getAlbumList2`,
              {
                params: asURLSearchParams({
                  ...authParamsPlusJson,
                  type: "alphabeticalByArtist",
                  size: 500,
                  offset: q._index,
                }),
                headers,
              }
            );
          });
        });

        describe("when the query is for the last page only", () => {
          beforeEach(() => {
            mockGET
              .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
              .mockImplementationOnce(() =>
                Promise.resolve(ok(asArtistsJson(artists)))
              )
              .mockImplementationOnce(() =>
                Promise.resolve(
                  ok(
                    getAlbumListJson([
                      // album1 is on the first page
                      // album2 is on the first page
                      [artist1, album3],
                      // album4 is missing from the albums end point for some reason
                      [artist2, album5],
                    ])
                  )
                )
              );
          });

          it("should return the last page of albums, updating the total to be accurate", async () => {
            const q: AlbumQuery = {
              _index: 2,
              _count: 100,
              type: "alphabeticalByArtist",
            };
            const result = await navidrome
              .generateToken({ username, password })
              .then((it) => it as AuthSuccess)
              .then((it) => navidrome.login(it.authToken))
              .then((it) => it.albums(q));

            expect(result).toEqual({
              results: [album3, album5],
              total: 4,
            });

            expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtists`, {
              params: asURLSearchParams(authParamsPlusJson),
              headers,
            });

            expect(axios.get).toHaveBeenCalledWith(
              `${url}/rest/getAlbumList2`,
              {
                params: asURLSearchParams({
                  ...authParamsPlusJson,
                  type: "alphabeticalByArtist",
                  size: 500,
                  offset: q._index,
                }),
                headers,
              }
            );
          });
        });
      });

      describe("when the number of albums returned from getAlbums is more than the number of albums in the getArtists endpoint", () => {
        describe("when the query comes back on 1 page", () => {
          beforeEach(() => {
            mockGET
              .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
              .mockImplementationOnce(() =>
                Promise.resolve(
                  ok(
                    asArtistsJson([
                      // artist1 has lost 2 albums on the getArtists end point
                      { ...artist1, albums: [album1, album2] },
                      artist2,
                    ])
                  )
                )
              )
              .mockImplementationOnce(() =>
                Promise.resolve(
                  ok(
                    getAlbumListJson([
                      [artist1, album1],
                      [artist1, album2],
                      [artist1, album3],
                      [artist1, album4],
                      [artist2, album5],
                    ])
                  )
                )
              );
          });

          it("should return the page of albums, updating the total to be accurate", async () => {
            const q: AlbumQuery = {
              _index: 0,
              _count: 100,
              type: "alphabeticalByArtist",
            };
            const result = await navidrome
              .generateToken({ username, password })
              .then((it) => it as AuthSuccess)
              .then((it) => navidrome.login(it.authToken))
              .then((it) => it.albums(q));

            expect(result).toEqual({
              results: [album1, album2, album3, album4, album5],
              total: 5,
            });

            expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtists`, {
              params: asURLSearchParams(authParamsPlusJson),
              headers,
            });

            expect(axios.get).toHaveBeenCalledWith(
              `${url}/rest/getAlbumList2`,
              {
                params: asURLSearchParams({
                  ...authParamsPlusJson,
                  type: "alphabeticalByArtist",
                  size: 500,
                  offset: q._index,
                }),
                headers,
              }
            );
          });
        });

        describe("when the query is for the first page", () => {
          beforeEach(() => {
            mockGET
              .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
              .mockImplementationOnce(() =>
                Promise.resolve(
                  ok(
                    asArtistsJson([
                      // artist1 has lost 2 albums on the getArtists end point
                      { ...artist1, albums: [album1, album2] },
                      artist2,
                    ])
                  )
                )
              )
              .mockImplementationOnce(() =>
                Promise.resolve(
                  ok(
                    getAlbumListJson([
                      [artist1, album1],
                      [artist1, album2],
                      [artist1, album3],
                      [artist1, album4],
                      [artist2, album5],
                    ])
                  )
                )
              );
          });

          it("should filter out the pre-fetched albums", async () => {
            const q: AlbumQuery = {
              _index: 0,
              _count: 2,
              type: "alphabeticalByArtist",
            };
            const result = await navidrome
              .generateToken({ username, password })
              .then((it) => it as AuthSuccess)
              .then((it) => navidrome.login(it.authToken))
              .then((it) => it.albums(q));

            expect(result).toEqual({
              results: [album1, album2],
              total: 5,
            });

            expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtists`, {
              params: asURLSearchParams(authParamsPlusJson),
              headers,
            });

            expect(axios.get).toHaveBeenCalledWith(
              `${url}/rest/getAlbumList2`,
              {
                params: asURLSearchParams({
                  ...authParamsPlusJson,
                  type: "alphabeticalByArtist",
                  size: 500,
                  offset: q._index,
                }),
                headers,
              }
            );
          });
        });

        describe("when the query is for the last page only", () => {
          beforeEach(() => {
            mockGET
              .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
              .mockImplementationOnce(() =>
                Promise.resolve(
                  ok(
                    asArtistsJson([
                      // artist1 has lost 2 albums on the getArtists end point
                      { ...artist1, albums: [album1, album2] },
                      artist2,
                    ])
                  )
                )
              )
              .mockImplementationOnce(() =>
                Promise.resolve(
                  ok(
                    getAlbumListJson([
                      [artist1, album3],
                      [artist1, album4],
                      [artist2, album5],
                    ])
                  )
                )
              );
          });

          it("should return the last page of albums, updating the total to be accurate", async () => {
            const q: AlbumQuery = {
              _index: 2,
              _count: 100,
              type: "alphabeticalByArtist",
            };
            const result = await navidrome
              .generateToken({ username, password })
              .then((it) => it as AuthSuccess)
              .then((it) => navidrome.login(it.authToken))
              .then((it) => it.albums(q));

            expect(result).toEqual({
              results: [album3, album4, album5],
              total: 5,
            });

            expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtists`, {
              params: asURLSearchParams(authParamsPlusJson),
              headers,
            });

            expect(axios.get).toHaveBeenCalledWith(
              `${url}/rest/getAlbumList2`,
              {
                params: asURLSearchParams({
                  ...authParamsPlusJson,
                  type: "alphabeticalByArtist",
                  size: 500,
                  offset: q._index,
                }),
                headers,
              }
            );
          });
        });
      });
    });
  });

  describe("getting an album", () => {
    describe("when it exists", () => {
      const genre = asGenre("Pop");

      const album = anAlbum({ genre });

      const artist = anArtist({ albums: [album] });

      const tracks = [
        aTrack({ artist, album, genre }),
        aTrack({ artist, album, genre }),
        aTrack({ artist, album, genre }),
        aTrack({ artist, album, genre }),
      ];

      beforeEach(() => {
        mockGET
          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getAlbumJson(artist, album, tracks)))
          );
      });

      it("should return the album", async () => {
        const result = await navidrome
          .generateToken({ username, password })
          .then((it) => it as AuthSuccess)
          .then((it) => navidrome.login(it.authToken))
          .then((it) => it.album(album.id));

        expect(result).toEqual(album);

        expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getAlbum`, {
          params: asURLSearchParams({
            ...authParamsPlusJson,
            id: album.id,
          }),
          headers,
        });
      });
    });
  });

  describe("getting tracks", () => {
    describe("for an album", () => {
      describe("when the album has multiple tracks, some of which are rated", () => {
        const hipHop = asGenre("Hip-Hop");
        const tripHop = asGenre("Trip-Hop");

        const album = anAlbum({ id: "album1", name: "Burnin", genre: hipHop });

        const artist = anArtist({
          id: "artist1",
          name: "Bob Marley",
          albums: [album],
        });

        const track1 = aTrack({
          artist: artistToArtistSummary(artist),
          album: albumToAlbumSummary(album),
          genre: hipHop,
          rating: {
            love: true,
            stars: 3,
          },
        });
        const track2 = aTrack({
          artist: artistToArtistSummary(artist),
          album: albumToAlbumSummary(album),
          genre: hipHop,
          rating: {
            love: false,
            stars: 0,
          },
        });
        const track3 = aTrack({
          artist: artistToArtistSummary(artist),
          album: albumToAlbumSummary(album),
          genre: tripHop,
          rating: {
            love: true,
            stars: 5,
          },
        });
        const track4 = aTrack({
          artist: artistToArtistSummary(artist),
          album: albumToAlbumSummary(album),
          genre: tripHop,
          rating: {
            love: false,
            stars: 1,
          },
        });

        const tracks = [track1, track2, track3, track4];

        beforeEach(() => {
          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getAlbumJson(artist, album, tracks)))
            );
        });

        it("should return the album", async () => {
          const result = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.tracks(album.id));

          expect(result).toEqual([track1, track2, track3, track4]);

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getAlbum`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              id: album.id,
            }),
            headers,
          });
        });
      });

      describe("when the album has only 1 track", () => {
        const flipFlop = asGenre("Flip-Flop");

        const album = anAlbum({
          id: "album1",
          name: "Burnin",
          genre: flipFlop,
        });

        const artist = anArtist({
          id: "artist1",
          name: "Bob Marley",
          albums: [album],
        });

        const track = aTrack({
          artist: artistToArtistSummary(artist),
          album: albumToAlbumSummary(album),
          genre: flipFlop,
        });

        const tracks = [track];

        beforeEach(() => {
          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getAlbumJson(artist, album, tracks)))
            );
        });

        it("should return the album", async () => {
          const result = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.tracks(album.id));

          expect(result).toEqual([track]);

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getAlbum`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              id: album.id,
            }),
            headers,
          });
        });
      });

      describe("when the album has only no tracks", () => {
        const album = anAlbum({ id: "album1", name: "Burnin" });

        const artist = anArtist({
          id: "artist1",
          name: "Bob Marley",
          albums: [album],
        });

        const tracks: Track[] = [];

        beforeEach(() => {
          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getAlbumJson(artist, album, tracks)))
            );
        });

        it("should empty array", async () => {
          const result = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.tracks(album.id));

          expect(result).toEqual([]);

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getAlbum`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              id: album.id,
            }),
            headers,
          });
        });
      });
    });

    describe("a single track", () => {
      const pop = asGenre("Pop");

      const album = anAlbum({ id: "album1", name: "Burnin", genre: pop });

      const artist = anArtist({
        id: "artist1",
        name: "Bob Marley",
        albums: [album],
      });

      describe("that is starred", () => {
        it("should return the track", async () => {
          const track = aTrack({
            artist: artistToArtistSummary(artist),
            album: albumToAlbumSummary(album),
            genre: pop,
            rating: {
              love: true,
              stars: 4,
            },
          });

          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getSongJson(track)))
            )
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getAlbumJson(artist, album, [])))
            );

          const result = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.track(track.id));

          expect(result).toEqual({
            ...track,
            rating: { love: true, stars: 4 },
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getSong`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              id: track.id,
            }),
            headers,
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getAlbum`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              id: album.id,
            }),
            headers,
          });
        });
      });

      describe("that is not starred", () => {
        it("should return the track", async () => {
          const track = aTrack({
            artist: artistToArtistSummary(artist),
            album: albumToAlbumSummary(album),
            genre: pop,
            rating: {
              love: false,
              stars: 0,
            },
          });

          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getSongJson(track)))
            )
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getAlbumJson(artist, album, [])))
            );

          const result = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.track(track.id));

          expect(result).toEqual({
            ...track,
            rating: { love: false, stars: 0 },
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getSong`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              id: track.id,
            }),
            headers,
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getAlbum`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              id: album.id,
            }),
            headers,
          });
        });
      });
    });
  });

  describe("streaming a track", () => {
    const trackId = uuid();
    const genre = aGenre("foo");

    const album = anAlbum({ genre });
    const artist = anArtist({
      albums: [album],
      image: { large: "foo", medium: undefined, small: undefined },
    });
    const track = aTrack({
      id: trackId,
      album: albumToAlbumSummary(album),
      artist: artistToArtistSummary(artist),
      genre,
    });

    describe("content-range, accept-ranges or content-length", () => {
      beforeEach(() => {
        streamClientApplication.mockReturnValue("bonob");
      });

      describe("when navidrome doesnt return a content-range, accept-ranges or content-length", () => {
        it("should return undefined values", async () => {
          const stream = {
            pipe: jest.fn(),
          };

          const streamResponse = {
            status: 200,
            headers: {
              "content-type": "audio/mpeg",
            },
            data: stream,
          };

          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getSongJson(track)))
            )
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getAlbumJson(artist, album, [])))
            )
            .mockImplementationOnce(() => Promise.resolve(streamResponse));

          const result = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.stream({ trackId, range: undefined }));

          expect(result.headers).toEqual({
            "content-type": "audio/mpeg",
            "content-length": undefined,
            "content-range": undefined,
            "accept-ranges": undefined,
          });
        });
      });

      describe("when navidrome returns a undefined for content-range, accept-ranges or content-length", () => {
        it("should return undefined values", async () => {
          const stream = {
            pipe: jest.fn(),
          };

          const streamResponse = {
            status: 200,
            headers: {
              "content-type": "audio/mpeg",
              "content-length": undefined,
              "content-range": undefined,
              "accept-ranges": undefined,
            },
            data: stream,
          };

          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getSongJson(track)))
            )
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getAlbumJson(artist, album, [])))
            )
            .mockImplementationOnce(() => Promise.resolve(streamResponse));

          const result = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.stream({ trackId, range: undefined }));

          expect(result.headers).toEqual({
            "content-type": "audio/mpeg",
            "content-length": undefined,
            "content-range": undefined,
            "accept-ranges": undefined,
          });
        });
      });

      describe("with no range specified", () => {
        describe("navidrome returns a 200", () => {
          it("should return the content", async () => {
            const stream = {
              pipe: jest.fn(),
            };

            const streamResponse = {
              status: 200,
              headers: {
                "content-type": "audio/mpeg",
                "content-length": "1667",
                "content-range": "-200",
                "accept-ranges": "bytes",
                "some-other-header": "some-value",
              },
              data: stream,
            };

            mockGET
              .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
              .mockImplementationOnce(() =>
                Promise.resolve(ok(getSongJson(track)))
              )
              .mockImplementationOnce(() =>
                Promise.resolve(ok(getAlbumJson(artist, album, [])))
              )
              .mockImplementationOnce(() => Promise.resolve(streamResponse));

            const result = await navidrome
              .generateToken({ username, password })
              .then((it) => it as AuthSuccess)
              .then((it) => navidrome.login(it.authToken))
              .then((it) => it.stream({ trackId, range: undefined }));

            expect(result.headers).toEqual({
              "content-type": "audio/mpeg",
              "content-length": "1667",
              "content-range": "-200",
              "accept-ranges": "bytes",
            });
            expect(result.stream).toEqual(stream);

            expect(axios.get).toHaveBeenCalledWith(`${url}/rest/stream`, {
              params: asURLSearchParams({
                ...authParams,
                id: trackId,
              }),
              headers: {
                "User-Agent": "bonob",
              },
              responseType: "stream",
            });
          });
        });

        describe("navidrome returns something other than a 200", () => {
          it("should return the content", async () => {
            const trackId = "track123";

            const streamResponse = {
              status: 400,
            };

            mockGET
              .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
              .mockImplementationOnce(() =>
                Promise.resolve(ok(getSongJson(track)))
              )
              .mockImplementationOnce(() =>
                Promise.resolve(ok(getAlbumJson(artist, album, [])))
              )
              .mockImplementationOnce(() => Promise.resolve(streamResponse));

            const musicLibrary = await navidrome
              .generateToken({ username, password })
              .then((it) => it as AuthSuccess)
              .then((it) => navidrome.login(it.authToken));

            return expect(
              musicLibrary.stream({ trackId, range: undefined })
            ).rejects.toEqual(`Subsonic failed with a 400 status`);
          });
        });
      });

      describe("with range specified", () => {
        it("should send the range to navidrome", async () => {
          const stream = {
            pipe: jest.fn(),
          };

          const range = "1000-2000";
          const streamResponse = {
            status: 200,
            headers: {
              "content-type": "audio/flac",
              "content-length": "66",
              "content-range": "100-200",
              "accept-ranges": "none",
              "some-other-header": "some-value",
            },
            data: stream,
          };

          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getSongJson(track)))
            )
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getAlbumJson(artist, album, [])))
            )
            .mockImplementationOnce(() => Promise.resolve(streamResponse));

          const result = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.stream({ trackId, range }));

          expect(result.headers).toEqual({
            "content-type": "audio/flac",
            "content-length": "66",
            "content-range": "100-200",
            "accept-ranges": "none",
          });
          expect(result.stream).toEqual(stream);

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/stream`, {
            params: asURLSearchParams({
              ...authParams,
              id: trackId,
            }),
            headers: {
              "User-Agent": "bonob",
              Range: range,
            },
            responseType: "stream",
          });
        });
      });
    });

    describe("when navidrome has a custom StreamClientApplication registered", () => {
      describe("when no range specified", () => {
        it("should user the custom StreamUserAgent when calling navidrome", async () => {
          const clientApplication = `bonob-${uuid()}`;
          streamClientApplication.mockReturnValue(clientApplication);

          const streamResponse = {
            status: 200,
            headers: {
              "content-type": "audio/mpeg",
            },
            data: Buffer.from("the track", "ascii"),
          };

          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getSongJson(track)))
            )
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getAlbumJson(artist, album, [track])))
            )
            .mockImplementationOnce(() => Promise.resolve(streamResponse));

          await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.stream({ trackId, range: undefined }));

          expect(streamClientApplication).toHaveBeenCalledWith(track);
          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/stream`, {
            params: asURLSearchParams({
              ...authParams,
              id: trackId,
              c: clientApplication,
            }),
            headers: {
              "User-Agent": "bonob",
            },
            responseType: "stream",
          });
        });
      });

      describe("when range specified", () => {
        it("should user the custom StreamUserAgent when calling navidrome", async () => {
          const range = "1000-2000";
          const clientApplication = `bonob-${uuid()}`;
          streamClientApplication.mockReturnValue(clientApplication);

          const streamResponse = {
            status: 200,
            headers: {
              "content-type": "audio/mpeg",
            },
            data: Buffer.from("the track", "ascii"),
          };

          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getSongJson(track)))
            )
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getAlbumJson(artist, album, [track])))
            )
            .mockImplementationOnce(() => Promise.resolve(streamResponse));

          await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.stream({ trackId, range }));

          expect(streamClientApplication).toHaveBeenCalledWith(track);
          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/stream`, {
            params: asURLSearchParams({
              ...authParams,
              id: trackId,
              c: clientApplication,
            }),
            headers: {
              "User-Agent": "bonob",
              Range: range,
            },
            responseType: "stream",
          });
        });
      });
    });
  });

  describe("fetching cover art", () => {
    describe("fetching album art", () => {
      describe("when no size is specified", () => {
        it("should fetch the image", async () => {
          const streamResponse = {
            status: 200,
            headers: {
              "content-type": "image/jpeg",
            },
            data: Buffer.from("the image", "ascii"),
          };
          const coverArtId = "someCoverArt";

          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() => Promise.resolve(streamResponse));

          const result = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.coverArt(`coverArt:${coverArtId}`));

          expect(result).toEqual({
            contentType: streamResponse.headers["content-type"],
            data: streamResponse.data,
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getCoverArt`, {
            params: asURLSearchParams({
              ...authParams,
              id: coverArtId,
            }),
            headers,
            responseType: "arraybuffer",
          });
        });
      });

      describe("when size is specified", () => {
        it("should fetch the image", async () => {
          const streamResponse = {
            status: 200,
            headers: {
              "content-type": "image/jpeg",
            },
            data: Buffer.from("the image", "ascii"),
          };
          const coverArtId = "someCoverArt";
          const size = 1879;

          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() => Promise.resolve(streamResponse));

          const result = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.coverArt(`coverArt:${coverArtId}`, size));

          expect(result).toEqual({
            contentType: streamResponse.headers["content-type"],
            data: streamResponse.data,
          });

          expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getCoverArt`, {
            params: asURLSearchParams({
              ...authParams,
              id: coverArtId,
              size,
            }),
            headers,
            responseType: "arraybuffer",
          });
        });
      });

      describe("when an unexpected error occurs", () => {
        it("should return undefined", async () => {
          const coverArtId = "someCoverArt";
          const size = 1879;

          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() => Promise.reject("BOOOM"));

          const result = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.coverArt(`coverArt:${coverArtId}`, size));

          expect(result).toBeUndefined();
        });
      });
    });

    describe("fetching artist art", () => {
      describe("when no size is specified", () => {
        describe("when the artist has a valid artist uri", () => {
          it("should fetch the image from the artist uri", async () => {
            const artistId = "someArtist123";

            const images: Images = {
              small: "http://example.com/images/small",
              medium: "http://example.com/images/medium",
              large: "http://example.com/images/large",
            };

            const streamResponse = {
              status: 200,
              headers: {
                "content-type": "image/jpeg",
              },
              data: Buffer.from("the image", "ascii"),
            };

            const artist = anArtist({ id: artistId, image: images });

            mockGET
              .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
              .mockImplementationOnce(() =>
                Promise.resolve(ok(getArtistJson(artist)))
              )
              .mockImplementationOnce(() =>
                Promise.resolve(ok(getArtistInfoJson(artist)))
              )
              .mockImplementationOnce(() => Promise.resolve(streamResponse));

            const result = await navidrome
              .generateToken({ username, password })
              .then((it) => it as AuthSuccess)
              .then((it) => navidrome.login(it.authToken))
              .then((it) => it.coverArt(`artist:${artistId}`));

            expect(result).toEqual({
              contentType: streamResponse.headers["content-type"],
              data: streamResponse.data,
            });

            expect(axios.get).toHaveBeenCalledWith(
              `${url}/rest/getArtistInfo2`,
              {
                params: asURLSearchParams({
                  ...authParamsPlusJson,
                  id: artistId,
                  count: 50,
                  includeNotPresent: true,
                }),
                headers,
              }
            );

            expect(axios.get).toHaveBeenCalledWith(images.large, {
              headers: BROWSER_HEADERS,
              responseType: "arraybuffer",
            });
          });

          describe("and an error occurs fetching the uri", () => {
            it("should return undefined", async () => {
              const artistId = "someArtist123";

              const images: Images = {
                small: "http://example.com/images/small",
                medium: "http://example.com/images/medium",
                large: "http://example.com/images/large",
              };

              const artist = anArtist({ id: artistId, image: images });

              mockGET
                .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
                .mockImplementationOnce(() =>
                  Promise.resolve(ok(getArtistJson(artist)))
                )
                .mockImplementationOnce(() =>
                  Promise.resolve(ok(getArtistInfoJson(artist)))
                )
                .mockImplementationOnce(() => Promise.reject("BOOOM"));

              const result = await navidrome
                .generateToken({ username, password })
                .then((it) => it as AuthSuccess)
                .then((it) => navidrome.login(it.authToken))
                .then((it) => it.coverArt(`artist:${artistId}`));

              expect(result).toBeUndefined();
            });
          });
        });

        describe("when the artist doest not have a valid artist uri", () => {
          describe("however has some albums", () => {
            const artistId = "someArtist123";

            const images: Images = {
              small: undefined,
              medium: undefined,
              large: undefined,
            };

            const streamResponse = {
              status: 200,
              headers: {
                "content-type": "image/jpeg",
              },
              data: Buffer.from("the image", "ascii"),
            };

            describe("no albums have coverArt", () => {
              it("should return undefined", async () => {
                const album1 = anAlbum({ coverArt: undefined });
                const album2 = anAlbum({ coverArt: undefined });

                const artist = anArtist({
                  id: artistId,
                  albums: [album1, album2],
                  image: images,
                });

                mockGET
                  .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
                  .mockImplementationOnce(() =>
                    Promise.resolve(ok(getArtistJson(artist)))
                  )
                  .mockImplementationOnce(() =>
                    Promise.resolve(ok(getArtistInfoJson(artist)))
                  )
                  .mockImplementationOnce(() =>
                    Promise.resolve(streamResponse)
                  );

                const result = await navidrome
                  .generateToken({ username, password })
                  .then((it) => it as AuthSuccess)
                  .then((it) => navidrome.login(it.authToken))
                  .then((it) => it.coverArt(`artist:${artistId}`));

                expect(result).toEqual(undefined);

                expect(axios.get).toHaveBeenCalledWith(
                  `${url}/rest/getArtist`,
                  {
                    params: asURLSearchParams({
                      ...authParamsPlusJson,
                      id: artistId,
                    }),
                    headers,
                  }
                );

                expect(axios.get).toHaveBeenCalledWith(
                  `${url}/rest/getArtistInfo2`,
                  {
                    params: asURLSearchParams({
                      ...authParamsPlusJson,
                      id: artistId,
                      count: 50,
                      includeNotPresent: true,
                    }),
                    headers,
                  }
                );
              });
            });

            describe("some albums have coverArt", () => {
              describe("all albums have coverArt", () => {
                it("should fetch the coverArt from the first album", async () => {
                  const album1 = anAlbum({
                    coverArt: `coverArt:album1CoverArt`,
                  });
                  const album2 = anAlbum({
                    coverArt: `coverArt:album2CoverArt`,
                  });

                  const artist = anArtist({
                    id: artistId,
                    albums: [album1, album2],
                    image: images,
                  });

                  mockGET
                    .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
                    .mockImplementationOnce(() =>
                      Promise.resolve(ok(getArtistJson(artist)))
                    )
                    .mockImplementationOnce(() =>
                      Promise.resolve(ok(getArtistInfoJson(artist)))
                    )
                    .mockImplementationOnce(() =>
                      Promise.resolve(streamResponse)
                    );

                  const result = await navidrome
                    .generateToken({ username, password })
                    .then((it) => it as AuthSuccess)
                    .then((it) => navidrome.login(it.authToken))
                    .then((it) => it.coverArt(`artist:${artistId}`));

                  expect(result).toEqual({
                    contentType: streamResponse.headers["content-type"],
                    data: streamResponse.data,
                  });

                  expect(axios.get).toHaveBeenCalledWith(
                    `${url}/rest/getArtist`,
                    {
                      params: asURLSearchParams({
                        ...authParamsPlusJson,
                        id: artistId,
                      }),
                      headers,
                    }
                  );

                  expect(axios.get).toHaveBeenCalledWith(
                    `${url}/rest/getArtistInfo2`,
                    {
                      params: asURLSearchParams({
                        ...authParamsPlusJson,
                        id: artistId,
                        count: 50,
                        includeNotPresent: true,
                      }),
                      headers,
                    }
                  );

                  expect(axios.get).toHaveBeenCalledWith(
                    `${url}/rest/getCoverArt`,
                    {
                      params: asURLSearchParams({
                        ...authParams,
                        id: splitCoverArtId(album1.coverArt!)[1],
                      }),
                      headers,
                      responseType: "arraybuffer",
                    }
                  );
                });
              });

              describe("the first album does not have coverArt", () => {
                it("should fetch the coverArt from the first album with coverArt", async () => {
                  const album1 = anAlbum({ coverArt: undefined });
                  const album2 = anAlbum({
                    coverArt: `coverArt:album2CoverArt`,
                  });

                  const artist = anArtist({
                    id: artistId,
                    albums: [album1, album2],
                    image: images,
                  });

                  mockGET
                    .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
                    .mockImplementationOnce(() =>
                      Promise.resolve(ok(getArtistJson(artist)))
                    )
                    .mockImplementationOnce(() =>
                      Promise.resolve(ok(getArtistInfoJson(artist)))
                    )
                    .mockImplementationOnce(() =>
                      Promise.resolve(streamResponse)
                    );

                  const result = await navidrome
                    .generateToken({ username, password })
                    .then((it) => it as AuthSuccess)
                    .then((it) => navidrome.login(it.authToken))
                    .then((it) => it.coverArt(`artist:${artistId}`));

                  expect(result).toEqual({
                    contentType: streamResponse.headers["content-type"],
                    data: streamResponse.data,
                  });

                  expect(axios.get).toHaveBeenCalledWith(
                    `${url}/rest/getArtist`,
                    {
                      params: asURLSearchParams({
                        ...authParamsPlusJson,
                        id: artistId,
                      }),
                      headers,
                    }
                  );

                  expect(axios.get).toHaveBeenCalledWith(
                    `${url}/rest/getArtistInfo2`,
                    {
                      params: asURLSearchParams({
                        ...authParamsPlusJson,
                        id: artistId,
                        count: 50,
                        includeNotPresent: true,
                      }),
                      headers,
                    }
                  );

                  expect(axios.get).toHaveBeenCalledWith(
                    `${url}/rest/getCoverArt`,
                    {
                      params: asURLSearchParams({
                        ...authParams,
                        id: splitCoverArtId(album2.coverArt!)[1],
                      }),
                      headers,
                      responseType: "arraybuffer",
                    }
                  );
                });
              });

              describe("an unexpected error occurs getting the albums coverArt", () => {
                it("should fetch the coverArt from the first album", async () => {
                  const album1 = anAlbum({
                    coverArt: `coverArt:album1CoverArt`,
                  });
                  const album2 = anAlbum({
                    coverArt: `coverArt:album2CoverArt`,
                  });

                  const artist = anArtist({
                    id: artistId,
                    albums: [album1, album2],
                    image: images,
                  });

                  mockGET
                    .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
                    .mockImplementationOnce(() =>
                      Promise.resolve(ok(getArtistJson(artist)))
                    )
                    .mockImplementationOnce(() =>
                      Promise.resolve(ok(getArtistInfoJson(artist)))
                    )
                    .mockImplementationOnce(() => Promise.reject("BOOOM"));

                  const result = await navidrome
                    .generateToken({ username, password })
                    .then((it) => it as AuthSuccess)
                    .then((it) => navidrome.login(it.authToken))
                    .then((it) => it.coverArt(`artist:${artistId}`));

                  expect(result).toBeUndefined();
                });
              });
            });
          });

          describe("and has no albums", () => {
            it("should return undefined", async () => {
              const artistId = "someArtist123";

              const images: Images = {
                small: undefined,
                medium: undefined,
                large: undefined,
              };

              const streamResponse = {
                status: 200,
                headers: {
                  "content-type": "image/jpeg",
                },
                data: Buffer.from("the image", "ascii"),
              };

              const artist = anArtist({
                id: artistId,
                albums: [],
                image: images,
              });

              mockGET
                .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
                .mockImplementationOnce(() =>
                  Promise.resolve(ok(getArtistJson(artist)))
                )
                .mockImplementationOnce(() =>
                  Promise.resolve(ok(getArtistInfoJson(artist)))
                )
                .mockImplementationOnce(() => Promise.resolve(streamResponse));

              const result = await navidrome
                .generateToken({ username, password })
                .then((it) => it as AuthSuccess)
                .then((it) => navidrome.login(it.authToken))
                .then((it) => it.coverArt(`artist:${artistId}`));

              expect(result).toBeUndefined();

              expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtist`, {
                params: asURLSearchParams({
                  ...authParamsPlusJson,
                  id: artistId,
                }),
                headers,
              });

              expect(axios.get).toHaveBeenCalledWith(
                `${url}/rest/getArtistInfo2`,
                {
                  params: asURLSearchParams({
                    ...authParamsPlusJson,
                    id: artistId,
                    count: 50,
                    includeNotPresent: true,
                  }),
                  headers,
                }
              );
            });
          });
        });
      });

      describe("when size is specified", () => {
        const size = 189;

        describe("when the artist has a valid artist uri", () => {
          it("should fetch the image from the artist uri and resize it", async () => {
            const artistId = "someArtist123";

            const images: Images = {
              small: "http://example.com/images/small",
              medium: "http://example.com/images/medium",
              large: "http://example.com/images/large",
            };

            const originalImage = Buffer.from("original image", "ascii");
            const resizedImage = Buffer.from("resized image", "ascii");

            const streamResponse = {
              status: 200,
              headers: {
                "content-type": "image/jpeg",
              },
              data: originalImage,
            };

            const artist = anArtist({ id: artistId, image: images });

            mockGET
              .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
              .mockImplementationOnce(() =>
                Promise.resolve(ok(getArtistJson(artist)))
              )
              .mockImplementationOnce(() =>
                Promise.resolve(ok(getArtistInfoJson(artist)))
              )
              .mockImplementationOnce(() => Promise.resolve(streamResponse));

            const resize = jest.fn();
            (sharp as unknown as jest.Mock).mockReturnValue({ resize });
            resize.mockReturnValue({
              toBuffer: () => Promise.resolve(resizedImage),
            });

            const result = await navidrome
              .generateToken({ username, password })
              .then((it) => it as AuthSuccess)
              .then((it) => navidrome.login(it.authToken))
              .then((it) => it.coverArt(`artist:${artistId}`, size));

            expect(result).toEqual({
              contentType: streamResponse.headers["content-type"],
              data: resizedImage,
            });

            expect(axios.get).toHaveBeenCalledWith(
              `${url}/rest/getArtistInfo2`,
              {
                params: asURLSearchParams({
                  ...authParamsPlusJson,
                  id: artistId,
                  count: 50,
                  includeNotPresent: true,
                }),
                headers,
              }
            );

            expect(axios.get).toHaveBeenCalledWith(images.large, {
              headers: BROWSER_HEADERS,
              responseType: "arraybuffer",
            });

            expect(sharp).toHaveBeenCalledWith(streamResponse.data);
            expect(resize).toHaveBeenCalledWith(size);
          });
        });

        describe("when the artist does not have a valid artist uri", () => {
          describe("however has some albums", () => {
            it("should fetch the artists first album image", async () => {
              const artistId = "someArtist123";

              const images: Images = {
                small: undefined,
                medium: undefined,
                large: undefined,
              };

              const streamResponse = {
                status: 200,
                headers: {
                  "content-type": "image/jpeg",
                },
                data: Buffer.from("the image", "ascii"),
              };

              const album1 = anAlbum({ id: "album1Id" });
              const album2 = anAlbum({ id: "album2Id" });

              const artist = anArtist({
                id: artistId,
                albums: [album1, album2],
                image: images,
              });

              mockGET
                .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
                .mockImplementationOnce(() =>
                  Promise.resolve(ok(getArtistJson(artist)))
                )
                .mockImplementationOnce(() =>
                  Promise.resolve(ok(getArtistInfoJson(artist)))
                )
                .mockImplementationOnce(() => Promise.resolve(streamResponse));

              const result = await navidrome
                .generateToken({ username, password })
                .then((it) => it as AuthSuccess)
                .then((it) => navidrome.login(it.authToken))
                .then((it) => it.coverArt(`artist:${artistId}`, size));

              expect(result).toEqual({
                contentType: streamResponse.headers["content-type"],
                data: streamResponse.data,
              });

              expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtist`, {
                params: asURLSearchParams({
                  ...authParamsPlusJson,
                  f: "json",
                  id: artistId,
                }),
                headers,
              });

              expect(axios.get).toHaveBeenCalledWith(
                `${url}/rest/getArtistInfo2`,
                {
                  params: asURLSearchParams({
                    ...authParamsPlusJson,
                    id: artistId,
                    count: 50,
                    includeNotPresent: true,
                  }),
                  headers,
                }
              );

              expect(axios.get).toHaveBeenCalledWith(
                `${url}/rest/getCoverArt`,
                {
                  params: asURLSearchParams({
                    ...authParams,
                    id: splitCoverArtId(album1.coverArt!)[1],
                    size,
                  }),
                  headers,
                  responseType: "arraybuffer",
                }
              );
            });
          });

          describe("and has no albums", () => {
            it("should return undefined", async () => {
              const artistId = "someArtist123";

              const images: Images = {
                small: undefined,
                medium: undefined,
                large: undefined,
              };

              const streamResponse = {
                status: 200,
                headers: {
                  "content-type": "image/jpeg",
                },
                data: Buffer.from("the image", "ascii"),
              };

              const artist = anArtist({
                id: artistId,
                albums: [],
                image: images,
              });

              mockGET
                .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
                .mockImplementationOnce(() =>
                  Promise.resolve(ok(getArtistJson(artist)))
                )
                .mockImplementationOnce(() =>
                  Promise.resolve(ok(getArtistInfoJson(artist)))
                )
                .mockImplementationOnce(() => Promise.resolve(streamResponse));

              const result = await navidrome
                .generateToken({ username, password })
                .then((it) => it as AuthSuccess)
                .then((it) => navidrome.login(it.authToken))
                .then((it) => it.coverArt(`artist:${artistId}`));

              expect(result).toBeUndefined();

              expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtist`, {
                params: asURLSearchParams({
                  ...authParamsPlusJson,
                  f: "json",
                  id: artistId,
                }),
                headers,
              });

              expect(axios.get).toHaveBeenCalledWith(
                `${url}/rest/getArtistInfo2`,
                {
                  params: asURLSearchParams({
                    ...authParamsPlusJson,
                    id: artistId,
                    count: 50,
                    includeNotPresent: true,
                  }),
                  headers,
                }
              );
            });
          });
        });

        describe("when the artist has a dodgy looking artist uri", () => {
          describe("however has some albums", () => {
            it("should fetch the artists first album image", async () => {
              const artistId = "someArtist123";

              const images: Images = {
                small: `http://localhost:111/${DODGY_IMAGE_NAME}`,
                medium: `http://localhost:111/${DODGY_IMAGE_NAME}`,
                large: `http://localhost:111/${DODGY_IMAGE_NAME}`,
              };

              const streamResponse = {
                status: 200,
                headers: {
                  "content-type": "image/jpeg",
                },
                data: Buffer.from("the image", "ascii"),
              };

              const album1 = anAlbum({
                id: "album1Id",
                coverArt: "coverArt:album1CoverArt",
              });
              const album2 = anAlbum({
                id: "album2Id",
                coverArt: "coverArt:album2CoverArt",
              });

              const artist = anArtist({
                id: artistId,
                albums: [album1, album2],
                image: images,
              });

              mockGET
                .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
                .mockImplementationOnce(() =>
                  Promise.resolve(ok(getArtistJson(artist)))
                )
                .mockImplementationOnce(() =>
                  Promise.resolve(ok(getArtistInfoJson(artist)))
                )
                .mockImplementationOnce(() => Promise.resolve(streamResponse));

              const result = await navidrome
                .generateToken({ username, password })
                .then((it) => it as AuthSuccess)
                .then((it) => navidrome.login(it.authToken))
                .then((it) => it.coverArt(`artist:${artistId}`, size));

              expect(result).toEqual({
                contentType: streamResponse.headers["content-type"],
                data: streamResponse.data,
              });

              expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtist`, {
                params: asURLSearchParams({
                  ...authParamsPlusJson,
                  id: artistId,
                }),
                headers,
              });

              expect(axios.get).toHaveBeenCalledWith(
                `${url}/rest/getArtistInfo2`,
                {
                  params: asURLSearchParams({
                    ...authParamsPlusJson,
                    id: artistId,
                    count: 50,
                    includeNotPresent: true,
                  }),
                  headers,
                }
              );

              expect(axios.get).toHaveBeenCalledWith(
                `${url}/rest/getCoverArt`,
                {
                  params: asURLSearchParams({
                    ...authParams,
                    id: splitCoverArtId(album1.coverArt!)[1],
                    size,
                  }),
                  headers,
                  responseType: "arraybuffer",
                }
              );
            });
          });

          describe("and has no albums", () => {
            it("should return undefined", async () => {
              const artistId = "someArtist123";

              const images: Images = {
                small: `http://localhost:111/${DODGY_IMAGE_NAME}`,
                medium: `http://localhost:111/${DODGY_IMAGE_NAME}`,
                large: `http://localhost:111/${DODGY_IMAGE_NAME}`,
              };

              const streamResponse = {
                status: 200,
                headers: {
                  "content-type": "image/jpeg",
                },
                data: Buffer.from("the image", "ascii"),
              };

              const artist = anArtist({
                id: artistId,
                albums: [],
                image: images,
              });

              mockGET
                .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
                .mockImplementationOnce(() =>
                  Promise.resolve(ok(getArtistJson(artist)))
                )
                .mockImplementationOnce(() =>
                  Promise.resolve(ok(getArtistInfoJson(artist)))
                )
                .mockImplementationOnce(() => Promise.resolve(streamResponse));

              const result = await navidrome
                .generateToken({ username, password })
                .then((it) => it as AuthSuccess)
                .then((it) => navidrome.login(it.authToken))
                .then((it) => it.coverArt(`artist:${artistId}`));

              expect(result).toBeUndefined();

              expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtist`, {
                params: asURLSearchParams({
                  ...authParamsPlusJson,
                  f: "json",
                  id: artistId,
                }),
                headers,
              });

              expect(axios.get).toHaveBeenCalledWith(
                `${url}/rest/getArtistInfo2`,
                {
                  params: asURLSearchParams({
                    ...authParamsPlusJson,
                    id: artistId,
                    count: 50,
                    includeNotPresent: true,
                  }),
                  headers,
                }
              );
            });
          });
        });
      });
    });
  });

  describe("rate", () => {
    const trackId = uuid();

    const rate = (trackId: string, rating: Rating) =>
      navidrome
        .generateToken({ username, password })
        .then((it) => it as AuthSuccess)
        .then((it) => navidrome.login(it.authToken))
        .then((it) => it.rate(trackId, rating));

    const artist = anArtist();
    const album = anAlbum({ id: "album1", name: "Burnin", genre: POP });

    describe("rating a track", () => {
      describe("loving a track that isnt already loved", () => {
        it("should mark the track as loved", async () => {
          const track = aTrack({
            id: trackId,
            artist,
            album: albumToAlbumSummary(album),
            rating: { love: false, stars: 0 },
          });

          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getSongJson(track)))
            )
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getAlbumJson(artist, album, [])))
            )
            .mockImplementationOnce(() => Promise.resolve(ok(EMPTY)));

          const result = await rate(trackId, { love: true, stars: 0 });

          expect(result).toEqual(true);

          expect(mockGET).toHaveBeenCalledWith(`${url}/rest/star`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              id: trackId,
            }),
            headers,
          });
        });
      });

      describe("unloving a track that is loved", () => {
        it("should mark the track as loved", async () => {
          const track = aTrack({
            id: trackId,
            artist,
            album: albumToAlbumSummary(album),
            rating: { love: true, stars: 0 },
          });

          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getSongJson(track)))
            )
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getAlbumJson(artist, album, [])))
            )
            .mockImplementationOnce(() => Promise.resolve(ok(EMPTY)));

          const result = await rate(trackId, { love: false, stars: 0 });

          expect(result).toEqual(true);

          expect(mockGET).toHaveBeenCalledWith(`${url}/rest/unstar`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              id: trackId,
            }),
            headers,
          });
        });
      });

      describe("loving a track that is already loved", () => {
        it("shouldn't do anything", async () => {
          const track = aTrack({
            id: trackId,
            artist,
            album: albumToAlbumSummary(album),
            rating: { love: true, stars: 0 },
          });

          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getSongJson(track)))
            )
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getAlbumJson(artist, album, [])))
            );

          const result = await rate(trackId, { love: true, stars: 0 });

          expect(result).toEqual(true);

          expect(mockGET).toHaveBeenCalledTimes(3);
        });
      });

      describe("rating a track with a different rating", () => {
        it("should add the new rating", async () => {
          const track = aTrack({
            id: trackId,
            artist,
            album: albumToAlbumSummary(album),
            rating: { love: false, stars: 0 },
          });

          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getSongJson(track)))
            )
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getAlbumJson(artist, album, [])))
            )
            .mockImplementationOnce(() => Promise.resolve(ok(EMPTY)));

          const result = await rate(trackId, { love: false, stars: 3 });

          expect(result).toEqual(true);

          expect(mockGET).toHaveBeenCalledWith(`${url}/rest/setRating`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              id: trackId,
              rating: 3,
            }),
            headers,
          });
        });
      });

      describe("rating a track with the same rating it already has", () => {
        it("shouldn't do anything", async () => {
          const track = aTrack({
            id: trackId,
            artist,
            album: albumToAlbumSummary(album),
            rating: { love: true, stars: 3 },
          });

          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getSongJson(track)))
            )
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getAlbumJson(artist, album, [])))
            );

          const result = await rate(trackId, { love: true, stars: 3 });

          expect(result).toEqual(true);

          expect(mockGET).toHaveBeenCalledTimes(3);
        });
      });

      describe("loving and rating a track", () => {
        it("should return true", async () => {
          const track = aTrack({
            id: trackId,
            artist,
            album: albumToAlbumSummary(album),
            rating: { love: true, stars: 3 },
          });

          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getSongJson(track)))
            )
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getAlbumJson(artist, album, [])))
            )
            .mockImplementationOnce(() => Promise.resolve(ok(EMPTY)))
            .mockImplementationOnce(() => Promise.resolve(ok(EMPTY)));

          const result = await rate(trackId, { love: false, stars: 5 });

          expect(result).toEqual(true);

          expect(mockGET).toHaveBeenCalledWith(`${url}/rest/unstar`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              id: trackId,
            }),
            headers,
          });
          expect(mockGET).toHaveBeenCalledWith(`${url}/rest/setRating`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              id: trackId,
              rating: 5,
            }),
            headers,
          });
        });
      });

      describe("invalid star values", () => {
        describe("stars of -1", () => {
          it("should return false", async () => {
            mockGET.mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))

            const result = await rate(trackId, { love: true, stars: -1 });
            expect(result).toEqual(false);
          });
        });

        describe("stars of 6", () => {
          it("should return false", async () => {
            mockGET.mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))

            const result = await rate(trackId, { love: true, stars: -1 });
            expect(result).toEqual(false);
          });
        });
      });

      describe("when fails", () => {
        it("should return false", async () => {
          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() => Promise.resolve(ok(FAILURE)))
            .mockImplementationOnce(() => Promise.resolve(ok(EMPTY)));

          const result = await rate(trackId, { love: true, stars: 0 });

          expect(result).toEqual(false);
        });
      });
    });
  });

  describe("scrobble", () => {
    describe("when succeeds", () => {
      it("should return true", async () => {
        const id = uuid();

        mockGET
          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
          .mockImplementationOnce(() => Promise.resolve(ok(EMPTY)));

        const result = await navidrome
          .generateToken({ username, password })
          .then((it) => it as AuthSuccess)
          .then((it) => navidrome.login(it.authToken))
          .then((it) => it.scrobble(id));

        expect(result).toEqual(true);

        expect(mockGET).toHaveBeenCalledWith(`${url}/rest/scrobble`, {
          params: asURLSearchParams({
            ...authParamsPlusJson,
            id,
            submission: true,
          }),
          headers,
        });
      });
    });

    describe("when fails", () => {
      it("should return false", async () => {
        const id = uuid();

        mockGET
          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
          .mockImplementationOnce(() =>
            Promise.resolve({
              status: 500,
              data: {},
            })
          );

        const result = await navidrome
          .generateToken({ username, password })
          .then((it) => it as AuthSuccess)
          .then((it) => navidrome.login(it.authToken))
          .then((it) => it.scrobble(id));

        expect(result).toEqual(false);

        expect(mockGET).toHaveBeenCalledWith(`${url}/rest/scrobble`, {
          params: asURLSearchParams({
            ...authParamsPlusJson,
            id,
            submission: true,
          }),
          headers,
        });
      });
    });
  });

  describe("nowPlaying", () => {
    describe("when succeeds", () => {
      it("should return true", async () => {
        const id = uuid();

        mockGET
          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
          .mockImplementationOnce(() => Promise.resolve(ok(EMPTY)));

        const result = await navidrome
          .generateToken({ username, password })
          .then((it) => it as AuthSuccess)
          .then((it) => navidrome.login(it.authToken))
          .then((it) => it.nowPlaying(id));

        expect(result).toEqual(true);

        expect(mockGET).toHaveBeenCalledWith(`${url}/rest/scrobble`, {
          params: asURLSearchParams({
            ...authParamsPlusJson,
            id,
            submission: false,
          }),
          headers,
        });
      });
    });

    describe("when fails", () => {
      it("should return false", async () => {
        const id = uuid();

        mockGET
          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
          .mockImplementationOnce(() =>
            Promise.resolve({
              status: 500,
              data: {},
            })
          );

        const result = await navidrome
          .generateToken({ username, password })
          .then((it) => it as AuthSuccess)
          .then((it) => navidrome.login(it.authToken))
          .then((it) => it.nowPlaying(id));

        expect(result).toEqual(false);

        expect(mockGET).toHaveBeenCalledWith(`${url}/rest/scrobble`, {
          params: asURLSearchParams({
            ...authParamsPlusJson,
            id,
            submission: false,
          }),
          headers,
        });
      });
    });
  });

  describe("searchArtists", () => {
    describe("when there is 1 search results", () => {
      it("should return true", async () => {
        const artist1 = anArtist({ name: "foo woo" });

        mockGET
          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getSearchResult3Json({ artists: [artist1] })))
          );

        const result = await navidrome
          .generateToken({ username, password })
          .then((it) => it as AuthSuccess)
          .then((it) => navidrome.login(it.authToken))
          .then((it) => it.searchArtists("foo"));

        expect(result).toEqual([artistToArtistSummary(artist1)]);

        expect(mockGET).toHaveBeenCalledWith(`${url}/rest/search3`, {
          params: asURLSearchParams({
            ...authParamsPlusJson,
            artistCount: 20,
            albumCount: 0,
            songCount: 0,
            query: "foo",
          }),
          headers,
        });
      });
    });

    describe("when there are many search results", () => {
      it("should return true", async () => {
        const artist1 = anArtist({ name: "foo woo" });
        const artist2 = anArtist({ name: "foo choo" });

        mockGET
          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
          .mockImplementationOnce(() =>
            Promise.resolve(
              ok(getSearchResult3Json({ artists: [artist1, artist2] }))
            )
          );

        const result = await navidrome
          .generateToken({ username, password })
          .then((it) => it as AuthSuccess)
          .then((it) => navidrome.login(it.authToken))
          .then((it) => it.searchArtists("foo"));

        expect(result).toEqual([
          artistToArtistSummary(artist1),
          artistToArtistSummary(artist2),
        ]);

        expect(mockGET).toHaveBeenCalledWith(`${url}/rest/search3`, {
          params: asURLSearchParams({
            ...authParamsPlusJson,
            artistCount: 20,
            albumCount: 0,
            songCount: 0,
            query: "foo",
          }),
          headers,
        });
      });
    });

    describe("when there are no search results", () => {
      it("should return []", async () => {
        mockGET
          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getSearchResult3Json({ artists: [] })))
          );

        const result = await navidrome
          .generateToken({ username, password })
          .then((it) => it as AuthSuccess)
          .then((it) => navidrome.login(it.authToken))
          .then((it) => it.searchArtists("foo"));

        expect(result).toEqual([]);

        expect(mockGET).toHaveBeenCalledWith(`${url}/rest/search3`, {
          params: asURLSearchParams({
            ...authParamsPlusJson,
            artistCount: 20,
            albumCount: 0,
            songCount: 0,
            query: "foo",
          }),
          headers,
        });
      });
    });
  });

  describe("searchAlbums", () => {
    describe("when there is 1 search results", () => {
      it("should return true", async () => {
        const album = anAlbum({
          name: "foo woo",
          genre: { id: b64Encode("pop"), name: "pop" },
        });
        const artist = anArtist({ name: "#1", albums: [album] });

        mockGET
          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
          .mockImplementationOnce(() =>
            Promise.resolve(
              ok(getSearchResult3Json({ albums: [{ artist, album }] }))
            )
          );

        const result = await navidrome
          .generateToken({ username, password })
          .then((it) => it as AuthSuccess)
          .then((it) => navidrome.login(it.authToken))
          .then((it) => it.searchAlbums("foo"));

        expect(result).toEqual([albumToAlbumSummary(album)]);

        expect(mockGET).toHaveBeenCalledWith(`${url}/rest/search3`, {
          params: asURLSearchParams({
            ...authParamsPlusJson,
            artistCount: 0,
            albumCount: 20,
            songCount: 0,
            query: "foo",
          }),
          headers,
        });
      });
    });

    describe("when there are many search results", () => {
      it("should return true", async () => {
        const album1 = anAlbum({
          name: "album1",
          genre: { id: b64Encode("pop"), name: "pop" },
        });
        const artist1 = anArtist({ name: "artist1", albums: [album1] });

        const album2 = anAlbum({
          name: "album2",
          genre: { id: b64Encode("pop"), name: "pop" },
        });
        const artist2 = anArtist({ name: "artist2", albums: [album2] });

        mockGET
          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
          .mockImplementationOnce(() =>
            Promise.resolve(
              ok(
                getSearchResult3Json({
                  albums: [
                    { artist: artist1, album: album1 },
                    { artist: artist2, album: album2 },
                  ],
                })
              )
            )
          );

        const result = await navidrome
          .generateToken({ username, password })
          .then((it) => it as AuthSuccess)
          .then((it) => navidrome.login(it.authToken))
          .then((it) => it.searchAlbums("moo"));

        expect(result).toEqual([
          albumToAlbumSummary(album1),
          albumToAlbumSummary(album2),
        ]);

        expect(mockGET).toHaveBeenCalledWith(`${url}/rest/search3`, {
          params: asURLSearchParams({
            ...authParamsPlusJson,
            artistCount: 0,
            albumCount: 20,
            songCount: 0,
            query: "moo",
          }),
          headers,
        });
      });
    });

    describe("when there are no search results", () => {
      it("should return []", async () => {
        mockGET
          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getSearchResult3Json({ albums: [] })))
          );

        const result = await navidrome
          .generateToken({ username, password })
          .then((it) => it as AuthSuccess)
          .then((it) => navidrome.login(it.authToken))
          .then((it) => it.searchAlbums("foo"));

        expect(result).toEqual([]);

        expect(mockGET).toHaveBeenCalledWith(`${url}/rest/search3`, {
          params: asURLSearchParams({
            ...authParamsPlusJson,
            artistCount: 0,
            albumCount: 20,
            songCount: 0,
            query: "foo",
          }),
          headers,
        });
      });
    });
  });

  describe("searchSongs", () => {
    describe("when there is 1 search results", () => {
      it("should return true", async () => {
        const pop = asGenre("Pop");

        const album = anAlbum({ id: "album1", name: "Burnin", genre: pop });
        const artist = anArtist({
          id: "artist1",
          name: "Bob Marley",
          albums: [album],
        });
        const track = aTrack({
          artist: artistToArtistSummary(artist),
          album: albumToAlbumSummary(album),
          genre: pop,
        });

        mockGET
          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getSearchResult3Json({ tracks: [track] })))
          )
          .mockImplementationOnce(() => Promise.resolve(ok(getSongJson(track))))
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getAlbumJson(artist, album, [])))
          );

        const result = await navidrome
          .generateToken({ username, password })
          .then((it) => it as AuthSuccess)
          .then((it) => navidrome.login(it.authToken))
          .then((it) => it.searchTracks("foo"));

        expect(result).toEqual([track]);

        expect(mockGET).toHaveBeenCalledWith(`${url}/rest/search3`, {
          params: asURLSearchParams({
            ...authParamsPlusJson,
            artistCount: 0,
            albumCount: 0,
            songCount: 20,
            query: "foo",
          }),
          headers,
        });
      });
    });

    describe("when there are many search results", () => {
      it("should return true", async () => {
        const pop = asGenre("Pop");

        const album1 = anAlbum({ id: "album1", name: "Burnin", genre: pop });
        const artist1 = anArtist({
          id: "artist1",
          name: "Bob Marley",
          albums: [album1],
        });
        const track1 = aTrack({
          id: "track1",
          artist: artistToArtistSummary(artist1),
          album: albumToAlbumSummary(album1),
          genre: pop,
        });

        const album2 = anAlbum({ id: "album2", name: "Bobbin", genre: pop });
        const artist2 = anArtist({
          id: "artist2",
          name: "Jane Marley",
          albums: [album2],
        });
        const track2 = aTrack({
          id: "track2",
          artist: artistToArtistSummary(artist2),
          album: albumToAlbumSummary(album2),
          genre: pop,
        });

        mockGET
          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
          .mockImplementationOnce(() =>
            Promise.resolve(
              ok(
                getSearchResult3Json({
                  tracks: [track1, track2],
                })
              )
            )
          )
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getSongJson(track1)))
          )
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getSongJson(track2)))
          )
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getAlbumJson(artist1, album1, [])))
          )
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getAlbumJson(artist2, album2, [])))
          );

        const result = await navidrome
          .generateToken({ username, password })
          .then((it) => it as AuthSuccess)
          .then((it) => navidrome.login(it.authToken))
          .then((it) => it.searchTracks("moo"));

        expect(result).toEqual([track1, track2]);

        expect(mockGET).toHaveBeenCalledWith(`${url}/rest/search3`, {
          params: asURLSearchParams({
            ...authParamsPlusJson,
            artistCount: 0,
            albumCount: 0,
            songCount: 20,
            query: "moo",
          }),
          headers,
        });
      });
    });

    describe("when there are no search results", () => {
      it("should return []", async () => {
        mockGET
          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getSearchResult3Json({ tracks: [] })))
          );

        const result = await navidrome
          .generateToken({ username, password })
          .then((it) => it as AuthSuccess)
          .then((it) => navidrome.login(it.authToken))
          .then((it) => it.searchTracks("foo"));

        expect(result).toEqual([]);

        expect(mockGET).toHaveBeenCalledWith(`${url}/rest/search3`, {
          params: asURLSearchParams({
            ...authParamsPlusJson,
            artistCount: 0,
            albumCount: 0,
            songCount: 20,
            query: "foo",
          }),
          headers,
        });
      });
    });
  });

  describe("playlists", () => {
    describe("getting playlists", () => {
      describe("when there is 1 playlist results", () => {
        it("should return it", async () => {
          const playlist = aPlaylistSummary();

          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getPlayListsJson([playlist])))
            );

          const result = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.playlists());

          expect(result).toEqual([playlist]);

          expect(mockGET).toHaveBeenCalledWith(`${url}/rest/getPlaylists`, {
            params: asURLSearchParams(authParamsPlusJson),
            headers,
          });
        });
      });

      describe("when there are many playlists", () => {
        it("should return them", async () => {
          const playlist1 = aPlaylistSummary();
          const playlist2 = aPlaylistSummary();
          const playlist3 = aPlaylistSummary();
          const playlists = [playlist1, playlist2, playlist3];

          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getPlayListsJson(playlists)))
            );

          const result = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.playlists());

          expect(result).toEqual(playlists);

          expect(mockGET).toHaveBeenCalledWith(`${url}/rest/getPlaylists`, {
            params: asURLSearchParams(authParamsPlusJson),
            headers,
          });
        });
      });

      describe("when there are no playlists", () => {
        it("should return []", async () => {
          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(getPlayListsJson([])))
            );

          const result = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.playlists());

          expect(result).toEqual([]);

          expect(mockGET).toHaveBeenCalledWith(`${url}/rest/getPlaylists`, {
            params: asURLSearchParams(authParamsPlusJson),
            headers,
          });
        });
      });
    });

    describe("getting a single playlist", () => {
      describe("when there is no playlist with the id", () => {
        it("should raise error", async () => {
          const id = "id404";

          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() =>
              Promise.resolve(ok(error("70", "data not found")))
            );

          return expect(
            navidrome
              .generateToken({ username, password })
              .then((it) => it as AuthSuccess)
              .then((it) => navidrome.login(it.authToken))
              .then((it) => it.playlist(id))
          ).rejects.toEqual("Subsonic error:data not found");
        });
      });

      describe("when there is a playlist with the id", () => {
        describe("and it has tracks", () => {
          it("should return the playlist with entries", async () => {
            const id = uuid();
            const name = "Great Playlist";
            const artist1 = anArtist();
            const album1 = anAlbum({
              artistId: artist1.id,
              artistName: artist1.name,
              genre: POP,
            });
            const track1 = aTrack({
              genre: POP,
              number: 66,
              coverArt: album1.coverArt,
              artist: artistToArtistSummary(artist1),
              album: albumToAlbumSummary(album1),
            });

            const artist2 = anArtist();
            const album2 = anAlbum({
              artistId: artist2.id,
              artistName: artist2.name,
              genre: ROCK,
            });
            const track2 = aTrack({
              genre: ROCK,
              number: 77,
              coverArt: album2.coverArt,
              artist: artistToArtistSummary(artist2),
              album: albumToAlbumSummary(album2),
            });

            mockGET
              .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
              .mockImplementationOnce(() =>
                Promise.resolve(
                  ok(
                    getPlayListJson({
                      id,
                      name,
                      entries: [track1, track2],
                    })
                  )
                )
              );

            const result = await navidrome
              .generateToken({ username, password })
              .then((it) => it as AuthSuccess)
              .then((it) => navidrome.login(it.authToken))
              .then((it) => it.playlist(id));

            expect(result).toEqual({
              id,
              name,
              entries: [
                { ...track1, number: 1 },
                { ...track2, number: 2 },
              ],
            });

            expect(mockGET).toHaveBeenCalledWith(`${url}/rest/getPlaylist`, {
              params: asURLSearchParams({
                ...authParamsPlusJson,
                id,
              }),
              headers,
            });
          });
        });

        describe("and it has no tracks", () => {
          it("should return the playlist with empty entries", async () => {
            const playlist = aPlaylist({
              entries: [],
            });

            mockGET
              .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
              .mockImplementationOnce(() =>
                Promise.resolve(ok(getPlayListJson(playlist)))
              );

            const result = await navidrome
              .generateToken({ username, password })
              .then((it) => it as AuthSuccess)
              .then((it) => navidrome.login(it.authToken))
              .then((it) => it.playlist(playlist.id));

            expect(result).toEqual(playlist);

            expect(mockGET).toHaveBeenCalledWith(`${url}/rest/getPlaylist`, {
              params: asURLSearchParams({
                ...authParamsPlusJson,
                id: playlist.id,
              }),
              headers,
            });
          });
        });
      });
    });

    describe("creating a playlist", () => {
      it("should create a playlist with the given name", async () => {
        const name = "ThePlaylist";
        const id = uuid();

        mockGET
          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
          .mockImplementationOnce(() =>
            Promise.resolve(ok(createPlayListJson({ id, name })))
          );

        const result = await navidrome
          .generateToken({ username, password })
          .then((it) => it as AuthSuccess)
          .then((it) => navidrome.login(it.authToken))
          .then((it) => it.createPlaylist(name));

        expect(result).toEqual({ id, name });

        expect(mockGET).toHaveBeenCalledWith(`${url}/rest/createPlaylist`, {
          params: asURLSearchParams({
            ...authParamsPlusJson,
            f: "json",
            name,
          }),
          headers,
        });
      });
    });

    describe("deleting a playlist", () => {
      it("should delete the playlist by id", async () => {
        const id = "id-to-delete";

        mockGET
          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
          .mockImplementationOnce(() => Promise.resolve(ok(EMPTY)));

        const result = await navidrome
          .generateToken({ username, password })
          .then((it) => it as AuthSuccess)
          .then((it) => navidrome.login(it.authToken))
          .then((it) => it.deletePlaylist(id));

        expect(result).toEqual(true);

        expect(mockGET).toHaveBeenCalledWith(`${url}/rest/deletePlaylist`, {
          params: asURLSearchParams({
            ...authParamsPlusJson,
            id,
          }),
          headers,
        });
      });
    });

    describe("editing playlists", () => {
      describe("adding a track to a playlist", () => {
        it("should add it", async () => {
          const playlistId = uuid();
          const trackId = uuid();

          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() => Promise.resolve(ok(EMPTY)));

          const result = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.addToPlaylist(playlistId, trackId));

          expect(result).toEqual(true);

          expect(mockGET).toHaveBeenCalledWith(`${url}/rest/updatePlaylist`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              playlistId,
              songIdToAdd: trackId,
            }),
            headers,
          });
        });
      });

      describe("removing a track from a playlist", () => {
        it("should remove it", async () => {
          const playlistId = uuid();
          const indicies = [6, 100, 33];

          mockGET
            .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
            .mockImplementationOnce(() => Promise.resolve(ok(EMPTY)));

          const result = await navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.removeFromPlaylist(playlistId, indicies));

          expect(result).toEqual(true);

          expect(mockGET).toHaveBeenCalledWith(`${url}/rest/updatePlaylist`, {
            params: asURLSearchParams({
              ...authParamsPlusJson,
              playlistId,
              songIndexToRemove: indicies,
            }),
            headers,
          });
        });
      });
    });
  });

  describe("similarSongs", () => {
    describe("when there is one similar songs", () => {
      it("should return it", async () => {
        const id = "idWithTracks";
        const pop = asGenre("Pop");

        const album1 = anAlbum({ id: "album1", name: "Burnin", genre: pop });
        const artist1 = anArtist({
          id: "artist1",
          name: "Bob Marley",
          albums: [album1],
        });

        const track1 = aTrack({
          id: "track1",
          artist: artistToArtistSummary(artist1),
          album: albumToAlbumSummary(album1),
          genre: pop,
        });

        mockGET
          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getSimilarSongsJson([track1])))
          )
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getAlbumJson(artist1, album1, [])))
          );

        const result = await navidrome
          .generateToken({ username, password })
          .then((it) => it as AuthSuccess)
          .then((it) => navidrome.login(it.authToken))
          .then((it) => it.similarSongs(id));

        expect(result).toEqual([track1]);

        expect(mockGET).toHaveBeenCalledWith(`${url}/rest/getSimilarSongs2`, {
          params: asURLSearchParams({
            ...authParams,
            f: "json",
            id,
            count: 50,
          }),
          headers,
        });
      });
    });

    describe("when there are similar songs", () => {
      it("should return them", async () => {
        const id = "idWithTracks";
        const pop = asGenre("Pop");

        const album1 = anAlbum({ id: "album1", name: "Burnin", genre: pop });
        const artist1 = anArtist({
          id: "artist1",
          name: "Bob Marley",
          albums: [album1],
        });

        const album2 = anAlbum({ id: "album2", name: "Walking", genre: pop });
        const artist2 = anArtist({
          id: "artist2",
          name: "Bob Jane",
          albums: [album2],
        });

        const track1 = aTrack({
          id: "track1",
          artist: artistToArtistSummary(artist1),
          album: albumToAlbumSummary(album1),
          genre: pop,
        });
        const track2 = aTrack({
          id: "track2",
          artist: artistToArtistSummary(artist2),
          album: albumToAlbumSummary(album2),
          genre: pop,
        });
        const track3 = aTrack({
          id: "track3",
          artist: artistToArtistSummary(artist1),
          album: albumToAlbumSummary(album1),
          genre: pop,
        });

        mockGET
          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getSimilarSongsJson([track1, track2, track3])))
          )
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getAlbumJson(artist1, album1, [])))
          )
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getAlbumJson(artist2, album2, [])))
          )
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getAlbumJson(artist1, album1, [])))
          );

        const result = await navidrome
          .generateToken({ username, password })
          .then((it) => it as AuthSuccess)
          .then((it) => navidrome.login(it.authToken))
          .then((it) => it.similarSongs(id));

        expect(result).toEqual([track1, track2, track3]);

        expect(mockGET).toHaveBeenCalledWith(`${url}/rest/getSimilarSongs2`, {
          params: asURLSearchParams({
            ...authParams,
            f: "json",
            id,
            count: 50,
          }),
          headers,
        });
      });
    });

    describe("when there are no similar songs", () => {
      it("should return []", async () => {
        const id = "idWithNoTracks";

        mockGET
          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getSimilarSongsJson([])))
          );

        const result = await navidrome
          .generateToken({ username, password })
          .then((it) => it as AuthSuccess)
          .then((it) => navidrome.login(it.authToken))
          .then((it) => it.similarSongs(id));

        expect(result).toEqual([]);

        expect(mockGET).toHaveBeenCalledWith(`${url}/rest/getSimilarSongs2`, {
          params: asURLSearchParams({
            ...authParams,
            f: "json",
            id,
            count: 50,
          }),
          headers,
        });
      });
    });

    describe("when the id doesnt exist", () => {
      it("should fail", async () => {
        const id = "idThatHasAnError";

        mockGET
          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
          .mockImplementationOnce(() =>
            Promise.resolve(ok(error("70", "data not found")))
          );

        return expect(
          navidrome
            .generateToken({ username, password })
            .then((it) => it as AuthSuccess)
            .then((it) => navidrome.login(it.authToken))
            .then((it) => it.similarSongs(id))
        ).rejects.toEqual("Subsonic error:data not found");
      });
    });
  });

  describe("topSongs", () => {
    describe("when there is one top song", () => {
      it("should return it", async () => {
        const artistId = "bobMarleyId";
        const artistName = "Bob Marley";
        const pop = asGenre("Pop");

        const album1 = anAlbum({ name: "Burnin", genre: pop });
        const artist = anArtist({
          id: artistId,
          name: artistName,
          albums: [album1],
        });

        const track1 = aTrack({
          artist: artistToArtistSummary(artist),
          album: albumToAlbumSummary(album1),
          genre: pop,
        });

        mockGET
          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getArtistJson(artist)))
          )
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getTopSongsJson([track1])))
          )
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getAlbumJson(artist, album1, [])))
          );

        const result = await navidrome
          .generateToken({ username, password })
          .then((it) => it as AuthSuccess)
          .then((it) => navidrome.login(it.authToken))
          .then((it) => it.topSongs(artistId));

        expect(result).toEqual([track1]);

        expect(mockGET).toHaveBeenCalledWith(`${url}/rest/getTopSongs`, {
          params: asURLSearchParams({
            ...authParams,
            f: "json",
            artist: artistName,
            count: 50,
          }),
          headers,
        });
      });
    });

    describe("when there are many top songs", () => {
      it("should return them", async () => {
        const artistId = "bobMarleyId";
        const artistName = "Bob Marley";

        const album1 = anAlbum({ name: "Burnin", genre: POP });
        const album2 = anAlbum({ name: "Churning", genre: POP });

        const artist = anArtist({
          id: artistId,
          name: artistName,
          albums: [album1, album2],
        });

        const track1 = aTrack({
          artist: artistToArtistSummary(artist),
          album: albumToAlbumSummary(album1),
          genre: POP,
        });

        const track2 = aTrack({
          artist: artistToArtistSummary(artist),
          album: albumToAlbumSummary(album2),
          genre: POP,
        });

        const track3 = aTrack({
          artist: artistToArtistSummary(artist),
          album: albumToAlbumSummary(album1),
          genre: POP,
        });

        mockGET
          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getArtistJson(artist)))
          )
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getTopSongsJson([track1, track2, track3])))
          )
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getAlbumJson(artist, album1, [])))
          )
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getAlbumJson(artist, album2, [])))
          )
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getAlbumJson(artist, album1, [])))
          );

        const result = await navidrome
          .generateToken({ username, password })
          .then((it) => it as AuthSuccess)
          .then((it) => navidrome.login(it.authToken))
          .then((it) => it.topSongs(artistId));

        expect(result).toEqual([track1, track2, track3]);

        expect(mockGET).toHaveBeenCalledWith(`${url}/rest/getTopSongs`, {
          params: asURLSearchParams({
            ...authParams,
            f: "json",
            artist: artistName,
            count: 50,
          }),
          headers,
        });
      });
    });

    describe("when there are no similar songs", () => {
      it("should return []", async () => {
        const artistId = "bobMarleyId";
        const artistName = "Bob Marley";
        const pop = asGenre("Pop");

        const album1 = anAlbum({ name: "Burnin", genre: pop });
        const artist = anArtist({
          id: artistId,
          name: artistName,
          albums: [album1],
        });

        mockGET
          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getArtistJson(artist)))
          )
          .mockImplementationOnce(() =>
            Promise.resolve(ok(getTopSongsJson([])))
          );

        const result = await navidrome
          .generateToken({ username, password })
          .then((it) => it as AuthSuccess)
          .then((it) => navidrome.login(it.authToken))
          .then((it) => it.topSongs(artistId));

        expect(result).toEqual([]);

        expect(mockGET).toHaveBeenCalledWith(`${url}/rest/getTopSongs`, {
          params: asURLSearchParams({
            ...authParams,
            f: "json",
            artist: artistName,
            count: 50,
          }),
          headers,
        });
      });
    });
  });
});