Artist images from getArtistInfo

src/music_service.ts

@@ -22,15 +22,19 @@ export type AuthFailure = {
   message: string;
 };
 
-
+export type ArtistSummary = {
-export type Artist = {
   id: string;
   name: string;
-  image: {
+  image: Images
+}
+
+export type Images = {
   small: string | undefined,
   medium: string | undefined,
   large: string | undefined,
 }
+
+export type Artist = ArtistSummary & {
 };
 
 export type Album = {
@@ -71,7 +75,7 @@ export interface MusicService {
 }
 
 export interface MusicLibrary {
-  artists(q: ArtistQuery): Promise<Result<Artist>>;
+  artists(q: ArtistQuery): Promise<Result<ArtistSummary>>;
-  artist(id: string): Artist;
+  artist(id: string): Promise<Artist>;
   albums(q: AlbumQuery): Promise<Result<Album>>;
 }

src/navidrome.ts

@@ -4,11 +4,14 @@ import {
   MusicService,
   Album,
   Artist,
+  ArtistSummary,
   Result,
   slice2,
   asResult,
   AlbumQuery,
   ArtistQuery,
+  MusicLibrary,
+  Images,
 } from "./music_service";
 import X2JS from "x2js";
 
@@ -35,15 +38,17 @@ export type SubsonicResponse = {
   _status: string;
 };
 
-export type GetArtistsResponse = SubsonicResponse & {
+export type artist = {
-  artists: {
-    index: {
-      artist: {
   _id: string;
   _name: string;
   _albumCount: string;
   _artistImageUrl: string | undefined;
-      }[];
+};
+
+export type GetArtistsResponse = SubsonicResponse & {
+  artists: {
+    index: {
+      artist: artist[];
       _name: string;
     }[];
   };
@@ -65,16 +70,29 @@ export type artistInfo = {
   largeImageUrl: string | undefined;
 };
 
+export type ArtistInfo = {
+  image: Images;
+};
+
 export type GetArtistInfoResponse = {
   artistInfo: artistInfo;
 };
 
+export type GetArtistResponse = {
+  artist: artist;
+};
+
 export function isError(
   subsonicResponse: SubsonicResponse
 ): subsonicResponse is SubsonicError {
   return (subsonicResponse as SubsonicError).error !== undefined;
 }
 
+export type IdName = {
+  id: string;
+  name: string;
+};
+
 export class Navidrome implements MusicService {
   url: string;
   encryption: Encryption;
@@ -124,46 +142,80 @@ export class Navidrome implements MusicService {
       )
     );
 
+  artistInfo = (credentials: Credentials, id: string): Promise<ArtistInfo> =>
+    this.get<GetArtistInfoResponse>(credentials, "/rest/getArtistInfo", {
+      id,
+    }).then((it) => ({
+      image: {
+        small: it.artistInfo.smallImageUrl,
+        medium: it.artistInfo.mediumImageUrl,
+        large: it.artistInfo.largeImageUrl,
+      },
+    }));
+
   async login(token: string) {
     const navidrome = this;
     const credentials: Credentials = this.parseToken(token);
-    return Promise.resolve({
+
-      artists: (q: ArtistQuery): Promise<Result<Artist>> =>
+    const musicLibrary: MusicLibrary = {
+      artists: (q: ArtistQuery): Promise<Result<ArtistSummary>> =>
         navidrome
           .get<GetArtistsResponse>(credentials, "/rest/getArtists")
-          .then((it) => it.artists.index.flatMap((it) => it.artist))
+          .then((it) => it.artists.index.flatMap((it) => it.artist || []))
           .then((artists) =>
-            Promise.all(
+            artists.map((artist) => ({
-              artists.map((artist) =>
-                navidrome
-                  .get<GetArtistInfoResponse>(
-                    credentials,
-                    "/rest/getArtistInfo",
-                    { id: artist._id }
-                  )
-                  .then((it) => it.artistInfo)
-                  .then((artistInfo) => ({
               id: artist._id,
               name: artist._name,
-                    image: {
+            }))
-                      small: artistInfo.smallImageUrl,
+          )
-                      medium: artistInfo.mediumImageUrl,
+          .then(slice2(q))
-                      large: artistInfo.largeImageUrl,
+          .then(asResult)
+          .then((result) =>
+            Promise.all(
+              result.results.map((idName: IdName) =>
+                navidrome.artistInfo(credentials, idName.id).then((artist) => ({
+                  total: result.total,
+                  result: {
+                    id: idName.id,
+                    name: idName.name,
+                    image: artist.image,
                   },
                 }))
               )
             )
           )
-          .then(slice2(q))
+          .then((resultWithInfo) => {
-          .then(asResult),
+            return {
-      artist: (id: string) => ({
+              total: resultWithInfo[0]?.total || 0,
-        id,
+              results: resultWithInfo.map((it) => it.result),
-        name: id,
+            };
-        image: { small: undefined, medium: undefined, large: undefined },
           }),
+      artist: async (id: string): Promise<Artist> => {
+        return navidrome
+          .get<GetArtistResponse>(credentials, "/rest/getArtist", {
+            id,
+          })
+          .then(async (artist: GetArtistResponse) => {
+            return navidrome
+              .get<GetArtistInfoResponse>(credentials, "/rest/getArtistInfo", {
+                id,
+              })
+              .then((artistInfo: GetArtistInfoResponse) => ({
+                id: artist.artist._id,
+                name: artist.artist._name,
+                image: {
+                  small: artistInfo.artistInfo.smallImageUrl,
+                  medium: artistInfo.artistInfo.mediumImageUrl,
+                  large: artistInfo.artistInfo.largeImageUrl,
+                },
+              }));
+          });
+      },
       albums: (_: AlbumQuery): Promise<Result<Album>> => {
         return Promise.resolve({ results: [], total: 0 });
       },
-    });
+    };
+
+    return Promise.resolve(musicLibrary);
   }
 }

src/server.ts

@@ -2,17 +2,18 @@ import express, { Express } from "express";
 import * as Eta from "eta";
 import morgan from "morgan";
 
+import { Sonos, Service } from "./sonos";
 import {
-  Sonos,
+  SOAP_PATH,
-  Service,
+  STRINGS_ROUTE,
-} from "./sonos";
+  PRESENTATION_MAP_ROUTE,
-import { SOAP_PATH, STRINGS_ROUTE, PRESENTATION_MAP_ROUTE, LOGIN_ROUTE } from './smapi';
+  LOGIN_ROUTE,
+} from "./smapi";
 import { LinkCodes, InMemoryLinkCodes } from "./link_codes";
 import { MusicService, isSuccess } from "./music_service";
 // import logger from "./logger";
 import bindSmapiSoapServiceToExpress from "./smapi";
 
-
 function server(
   sonos: Sonos,
   bonobService: Service,
@@ -65,7 +66,7 @@ function server(
     res.render("login", {
       bonobService,
       linkCode: req.query.linkCode,
-      loginRoute: LOGIN_ROUTE
+      loginRoute: LOGIN_ROUTE,
     });
   });
 
@@ -112,7 +113,33 @@ function server(
     res.send("");
   });
 
-  bindSmapiSoapServiceToExpress(app, SOAP_PATH, webAddress, linkCodes, musicService);
+  // app.get("/artist/:artistId/image", (req, res) => {
+  //   console.log(`Trying to load image for ${req.params["artistId"]}, token ${JSON.stringify(req.cookies)}`)
+  //   const authToken = req.headers["X-AuthToken"]! as string;
+  //   const artistId = req.params["artistId"]!;
+  //   musicService
+  //     .login(authToken)
+  //     .then((it) => it.artist(artistId))
+  //     .then(artist => artist.image.small)
+  //     .then((url) => {
+  //       if (url) {
+  //         console.log(`${artistId} sending 307 -> ${url}`)
+  //         res.setHeader("Location", url);
+  //         res.status(307).send();
+  //       } else {
+  //         console.log(`${artistId} sending 404`)
+  //         res.status(404).send();
+  //       }
+  //     });
+  // });
+
+  bindSmapiSoapServiceToExpress(
+    app,
+    SOAP_PATH,
+    webAddress,
+    linkCodes,
+    musicService
+  );
 
   return app;
 }

src/smapi.ts

@@ -6,7 +6,12 @@ import path from "path";
 import logger from "./logger";
 
 import { LinkCodes } from "./link_codes";
-import { Album, Artist, MusicLibrary, MusicService } from "./music_service";
+import {
+  Album,
+  ArtistSummary,
+  MusicLibrary,
+  MusicService,
+} from "./music_service";
 
 export const LOGIN_ROUTE = "/login";
 export const SOAP_PATH = "/ws/sonos";
@@ -227,17 +232,22 @@ function bindSmapiSoapServiceToExpress(
               case "artists":
                 return await musicLibrary
                   .artists(paging)
-                  .then(({ results, total }: { results: Artist[], total: number}) =>
+                  .then(
-                    getMetadataResult({
-                      mediaCollection: results.map((it) =>
                     ({
+                      results,
+                      total,
+                    }: {
+                      results: ArtistSummary[];
+                      total: number;
+                    }) =>
+                      getMetadataResult({
+                        mediaCollection: results.map((it) => ({
                           itemType: "artist",
                           id: `artist:${it.id}`,
                           artistId: it.id,
                           title: it.name,
-                          albumArtURI: it.image.small
+                          albumArtURI: it.image.small,
-                        })
+                        })),
-                      ),
                         index: paging._index,
                         total,
                       })
@@ -245,7 +255,8 @@ function bindSmapiSoapServiceToExpress(
               case "albums":
                 return await musicLibrary
                   .albums(paging)
-                  .then(({ results, total }: { results: Album[], total: number}) =>
+                  .then(
+                    ({ results, total }: { results: Album[]; total: number }) =>
                       getMetadataResult({
                         mediaCollection: results.map((it) =>
                           container({

tests/in_memory_music_service.test.ts

@@ -1,4 +1,8 @@
-import { InMemoryMusicService, artistWithAlbumsToArtist } from "./in_memory_music_service";
+import {
+  InMemoryMusicService,
+  artistWithAlbumsToArtist,
+  artistWithAlbumsToArtistSummary,
+} from "./in_memory_music_service";
 import { AuthSuccess, MusicLibrary } from "../src/music_service";
 import { v4 as uuid } from "uuid";
 import {
@@ -48,8 +52,18 @@ describe("InMemoryMusicService", () => {
       expect(artistWithAlbumsToArtist(BOB_MARLEY)).toEqual({
         id: BOB_MARLEY.id,
         name: BOB_MARLEY.name,
-        image: BOB_MARLEY.image
+        image: BOB_MARLEY.image,
-      })
+      });
+    });
+  });
+
+  describe("artistWithAlbumsToArtistSummary", () => {
+    it("should map fields correctly", () => {
+      expect(artistWithAlbumsToArtistSummary(BOB_MARLEY)).toEqual({
+        id: BOB_MARLEY.id,
+        name: BOB_MARLEY.name,
+        image: BOB_MARLEY.image,
+      });
     });
   });
 
@@ -71,12 +85,14 @@ describe("InMemoryMusicService", () => {
       describe("fetching all", () => {
         it("should provide an array of artists", async () => {
           const artists = [
-            artistWithAlbumsToArtist(BOB_MARLEY),
+            artistWithAlbumsToArtistSummary(BOB_MARLEY),
-            artistWithAlbumsToArtist(MADONNA),
+            artistWithAlbumsToArtistSummary(MADONNA),
-            artistWithAlbumsToArtist(BLONDIE),
+            artistWithAlbumsToArtistSummary(BLONDIE),
-            artistWithAlbumsToArtist(METALLICA),
+            artistWithAlbumsToArtistSummary(METALLICA),
           ];
-          expect(await musicLibrary.artists({ _index: 0, _count: 100 })).toEqual({
+          expect(
+            await musicLibrary.artists({ _index: 0, _count: 100 })
+          ).toEqual({
             results: artists,
             total: 4,
           });
@@ -86,8 +102,8 @@ describe("InMemoryMusicService", () => {
       describe("fetching the second page", () => {
         it("should provide an array of artists", async () => {
           const artists = [
-            artistWithAlbumsToArtist(BLONDIE),
+            artistWithAlbumsToArtistSummary(BLONDIE),
-            artistWithAlbumsToArtist(METALLICA),
+            artistWithAlbumsToArtistSummary(METALLICA),
           ];
           expect(await musicLibrary.artists({ _index: 2, _count: 2 })).toEqual({
             results: artists,
@@ -99,9 +115,9 @@ describe("InMemoryMusicService", () => {
       describe("fetching the more items than fit on the second page", () => {
         it("should provide an array of artists", async () => {
           const artists = [
-            artistWithAlbumsToArtist(MADONNA),
+            artistWithAlbumsToArtistSummary(MADONNA),
-            artistWithAlbumsToArtist(BLONDIE),
+            artistWithAlbumsToArtistSummary(BLONDIE),
-            artistWithAlbumsToArtist(METALLICA),
+            artistWithAlbumsToArtistSummary(METALLICA),
           ];
           expect(
             await musicLibrary.artists({ _index: 1, _count: 50 })
@@ -112,15 +128,19 @@ describe("InMemoryMusicService", () => {
 
     describe("artist", () => {
       describe("when it exists", () => {
-        it("should provide an artist", () => {
+        it("should provide an artist", async () => {
-          expect(musicLibrary.artist(MADONNA.id)).toEqual(artistWithAlbumsToArtist(MADONNA));
+          expect(await musicLibrary.artist(MADONNA.id)).toEqual(
-          expect(musicLibrary.artist(BLONDIE.id)).toEqual(artistWithAlbumsToArtist(BLONDIE));
+            artistWithAlbumsToArtist(MADONNA)
+          );
+          expect(await musicLibrary.artist(BLONDIE.id)).toEqual(
+            artistWithAlbumsToArtist(BLONDIE)
+          );
         });
       });
 
       describe("when it doesnt exist", () => {
-        it("should provide an artist", () => {
+        it("should blow up", async () => {
-          expect(() => musicLibrary.artist("-1")).toThrow(
+          return expect(musicLibrary.artist("-1")).rejects.toEqual(
             "No artist with id '-1'"
           );
         });
@@ -130,30 +150,50 @@ describe("InMemoryMusicService", () => {
     describe("albums", () => {
       describe("fetching with no filtering", () => {
         it("should return all the albums for all the artists", async () => {
-          expect(await musicLibrary.albums({ _index: 0, _count: 100 })).toEqual({
+          expect(await musicLibrary.albums({ _index: 0, _count: 100 })).toEqual(
+            {
               results: ALL_ALBUMS,
               total: ALL_ALBUMS.length,
-          });
+            }
+          );
         });
       });
 
       describe("fetching for a single artist", () => {
         it("should return them all if the artist has some", async () => {
-          expect(await musicLibrary.albums({ artistId: BLONDIE.id, _index: 0, _count: 100 })).toEqual({
+          expect(
+            await musicLibrary.albums({
+              artistId: BLONDIE.id,
+              _index: 0,
+              _count: 100,
+            })
+          ).toEqual({
             results: BLONDIE.albums,
             total: BLONDIE.albums.length,
           });
         });
 
         it("should return empty list of the artists does not have any", async () => {
-          expect(await musicLibrary.albums({ artistId: MADONNA.id, _index: 0, _count: 100 })).toEqual({
+          expect(
+            await musicLibrary.albums({
+              artistId: MADONNA.id,
+              _index: 0,
+              _count: 100,
+            })
+          ).toEqual({
             results: [],
             total: 0,
           });
         });
 
         it("should return empty list if the artist id is not valid", async () => {
-          expect(await musicLibrary.albums({ artistId: uuid(), _index: 0, _count: 100 })).toEqual({
+          expect(
+            await musicLibrary.albums({
+              artistId: uuid(),
+              _index: 0,
+              _count: 100,
+            })
+          ).toEqual({
             results: [],
             total: 0,
           });

tests/in_memory_music_service.ts

@@ -13,17 +13,19 @@ import {
   AlbumQuery,
   slice2,
   asResult,
+  ArtistSummary,
 } from "../src/music_service";
 
-export const artistWithAlbumsToArtist = (it: ArtistWithAlbums): Artist => ({
+export const artistWithAlbumsToArtistSummary = (
+  it: ArtistWithAlbums
+): ArtistSummary => ({
   id: it.id,
   name: it.name,
-  image: it.image
+  image: it.image,
 });
 
-const getOrThrow = (message: string) =>
+export const artistWithAlbumsToArtist = (it: ArtistWithAlbums): Artist => ({
-  O.getOrElseW(() => {
+  ...artistWithAlbumsToArtistSummary(it),
-    throw message;
 });
 
 type P<T> = (t: T) => boolean;
@@ -60,7 +62,7 @@ export class InMemoryMusicService implements MusicService {
       return Promise.reject("Invalid auth token");
     return Promise.resolve({
       artists: (q: ArtistQuery) =>
-        Promise.resolve(this.artists.map(artistWithAlbumsToArtist))
+        Promise.resolve(this.artists.map(artistWithAlbumsToArtistSummary))
           .then(slice2(q))
           .then(asResult),
       artist: (id: string) =>
@@ -68,7 +70,8 @@ export class InMemoryMusicService implements MusicService {
           this.artists.find((it) => it.id === id),
           O.fromNullable,
           O.map(artistWithAlbumsToArtist),
-          getOrThrow(`No artist with id '${id}'`)
+          O.map(it => Promise.resolve(it)),
+          O.getOrElse(() => Promise.reject(`No artist with id '${id}'`))
         ),
       albums: (q: AlbumQuery) =>
         Promise.resolve(

tests/navidrome.test.ts

@@ -1,13 +1,13 @@
 import { Md5 } from "ts-md5/dist/md5";
 
-import { Navidrome, t, artistInfo } from "../src/navidrome";
+import { Navidrome, t } from "../src/navidrome";
 import encryption from "../src/encryption";
 
 import axios from "axios";
 jest.mock("axios");
 
 import randomString from "../src/random_string";
-import { AuthSuccess } from "../src/music_service";
+import { Artist, AuthSuccess, Images } from "../src/music_service";
 jest.mock("../src/random_string");
 
 describe("t", () => {
@@ -24,23 +24,21 @@ const ok = (data: string) => ({
 });
 
 const artistInfoXml = (
-  artistInfo: Partial<artistInfo>
+  images: Images
 ) => `<subsonic-response xmlns="http://subsonic.org/restapi" status="ok" version="1.16.1" type="navidrome" serverVersion="0.40.0 (8799358a)">
           <artistInfo>
               <biography></biography>
               <musicBrainzId></musicBrainzId>
               <lastFmUrl></lastFmUrl>
-              <smallImageUrl>${artistInfo.smallImageUrl || ""}</smallImageUrl>
+              <smallImageUrl>${images.small || ""}</smallImageUrl>
-              <mediumImageUrl>${
+              <mediumImageUrl>${images.medium || ""}</mediumImageUrl>
-                artistInfo.mediumImageUrl || ""
+              <largeImageUrl>${images.large || ""}</largeImageUrl>
-              }</mediumImageUrl>
-              <largeImageUrl>${artistInfo.largeImageUrl || ""}</largeImageUrl>
           </artistInfo>
         </subsonic-response>`;
 
 const PING_OK = `<subsonic-response xmlns="http://subsonic.org/restapi" status="ok" version="1.16.1" type="navidrome" serverVersion="0.40.0 (8799358a)"></subsonic-response>`;
 
-describe("navidrome", () => {
+describe("Navidrome", () => {
   const url = "http://127.0.0.22:4567";
   const username = "user1";
   const password = "pass1";
@@ -49,7 +47,7 @@ describe("navidrome", () => {
   const navidrome = new Navidrome(url, encryption("secret"));
 
   const mockedRandomString = (randomString as unknown) as jest.Mock;
-  const mockGET = jest.fn()
+  const mockGET = jest.fn();
 
   beforeEach(() => {
     jest.clearAllMocks();
@@ -102,54 +100,147 @@ describe("navidrome", () => {
     });
   });
 
-  describe("getArtists", () => {
+  describe("getArtist", () => {
-    const getArtistsXml = `<subsonic-response xmlns="http://subsonic.org/restapi" status="ok" version="1.16.1" type="navidrome" serverVersion="0.40.0 (8799358a)">
+    const artistId = "someUUID_123";
-                              <artists lastModified="1614586749000" ignoredArticles="The El La Los Las Le Les Os As O A">
+    const artistName = "BananaMan";
-                                <index name="#">
+
-                                  <artist id="2911b2d67a6b11eb804dd360a6225680" name="artist1" albumCount="22"></artist>
+    const artistXml = `<subsonic-response xmlns="http://subsonic.org/restapi" status="ok" version="1.16.1" type="navidrome" serverVersion="0.40.0 (8799358a)">
-                                  <artist id="3c0b9d7a7a6b11eb9773f398e6236ad6" name="artist2" albumCount="9"></artist>
+                        <artist id="${artistId}" name="${artistName}" albumCount="9" artistImageUrl="....">
-                                </index>
+                        </artist>
-                                <index name="A">
-                                  <artist id="3c5113007a6b11eb87173bfb9b07f9b1" name="artist3" albumCount="2"></artist>
-                                </index>
-                                <index name="B">
-                                  <artist id="3ca781c27a6b11eb897ebbb5773603ad" name="artist4" albumCount="2"></artist>
-                                </index>
-                              </artists>
                       </subsonic-response>`;
 
-    const artist1_getArtistInfoXml = artistInfoXml({
+    const getArtistInfoXml = artistInfoXml({
-      smallImageUrl: "sml1",
+      small: "sml1",
-      mediumImageUrl: "med1",
+      medium: "med1",
-      largeImageUrl: "lge1",
+      large: "lge1",
-    });
-    const artist2_getArtistInfoXml = artistInfoXml({
-      smallImageUrl: "sml2",
-      mediumImageUrl: undefined,
-      largeImageUrl: "lge2",
-    });
-    const artist3_getArtistInfoXml = artistInfoXml({
-      smallImageUrl: undefined,
-      mediumImageUrl: "med3",
-      largeImageUrl: undefined,
-    });
-    const artist4_getArtistInfoXml = artistInfoXml({
-      smallImageUrl: "sml4",
-      mediumImageUrl: "med4",
-      largeImageUrl: "lge4",
     });
 
     beforeEach(() => {
       mockGET
         .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
-      .mockImplementationOnce(() => Promise.resolve(ok(getArtistsXml)))
+        .mockImplementationOnce(() => Promise.resolve(ok(artistXml)))
-      .mockImplementationOnce(() => Promise.resolve(ok(artist1_getArtistInfoXml)))
+        .mockImplementationOnce(() => Promise.resolve(ok(getArtistInfoXml)));
-      .mockImplementationOnce(() => Promise.resolve(ok(artist2_getArtistInfoXml)))
+    });
-      .mockImplementationOnce(() => Promise.resolve(ok(artist3_getArtistInfoXml)))
+
-      .mockImplementationOnce(() => Promise.resolve(ok(artist4_getArtistInfoXml)));
+    it("should do it", async () => {
+      const artist = await navidrome
+        .generateToken({ username, password })
+        .then((it) => it as AuthSuccess)
+        .then((it) => navidrome.login(it.authToken))
+        .then((it) => it.artist(artistId));
+
+      expect(artist).toEqual({
+        id: artistId,
+        name: artistName,
+        image: { small: "sml1", medium: "med1", large: "lge1" },
+      });
+
+      expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtist`, {
+        params: {
+          id: artistId,
+          ...authParams,
+        },
+      });
+
+      expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtistInfo`, {
+        params: {
+          id: artistId,
+          ...authParams,
+        },
+      });
+    });
+  });
+
+  describe("getArtists", () => {
+    const artist1: Artist = {
+      id: "artist1.id",
+      name: "artist1.name",
+      image: { small: "s1", medium: "m1", large: "l1" },
+    };
+    const artist2: Artist = {
+      id: "artist2.id",
+      name: "artist2.name",
+      image: { small: "s2", medium: "m2", large: "l2" },
+    };
+    const artist3: Artist = {
+      id: "artist3.id",
+      name: "artist3.name",
+      image: { small: "s3", medium: "m3", large: "l3" },
+    };
+    const artist4: Artist = {
+      id: "artist4.id",
+      name: "artist4.name",
+      image: { small: "s4", medium: "m4", large: "l4" },
+    };
+
+    const getArtistsXml = `<subsonic-response xmlns="http://subsonic.org/restapi" status="ok" version="1.16.1" type="navidrome" serverVersion="0.40.0 (8799358a)">
+                              <artists lastModified="1614586749000" ignoredArticles="The El La Los Las Le Les Os As O A">
+                                <index name="#">
+                                  <artist id="${artist1.id}" name="${artist1.name}" albumCount="22"></artist>
+                                  <artist id="${artist2.id}" name="${artist2.name}" albumCount="9"></artist>
+                                </index>
+                                <index name="A">
+                                  <artist id="${artist3.id}" name="${artist3.name}" albumCount="2"></artist>
+                                </index>
+                                <index name="B">
+                                  <artist id="${artist4.id}" name="${artist4.name}" albumCount="2"></artist>
+                                </index>
+                              </artists>
+                            </subsonic-response>`;
+
+    describe("when there are no results", () => {
+      beforeEach(() => {
+        mockGET
+          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
+          .mockImplementationOnce(() =>
+            Promise.resolve(
+              ok(`<subsonic-response xmlns="http://subsonic.org/restapi" status="ok" version="1.16.1" type="navidrome" serverVersion="0.40.0 (8799358a)">
+                    <artists lastModified="1614586749000" ignoredArticles="The El La Los Las Le Les Os As O A">
+                      <index name="#">
+                      </index>
+                      <index name="A">
+                      </index>
+                      <index name="B">
+                      </index>
+                    </artists>
+                  </subsonic-response>`)
+            )
+          );
+      });
+
+      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 no paging is in effect", () => {
+      beforeEach(() => {
+        mockGET
+          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
+          .mockImplementationOnce(() => Promise.resolve(ok(getArtistsXml)))
+          .mockImplementationOnce(() =>
+            Promise.resolve(ok(artistInfoXml(artist1.image)))
+          )
+          .mockImplementationOnce(() =>
+            Promise.resolve(ok(artistInfoXml(artist2.image)))
+          )
+          .mockImplementationOnce(() =>
+            Promise.resolve(ok(artistInfoXml(artist3.image)))
+          )
+          .mockImplementationOnce(() =>
+            Promise.resolve(ok(artistInfoXml(artist4.image)))
+          );
+      });
+
       it("should return all the artists", async () => {
         const artists = await navidrome
           .generateToken({ username, password })
@@ -157,54 +248,35 @@ describe("navidrome", () => {
           .then((it) => navidrome.login(it.authToken))
           .then((it) => it.artists({ _index: 0, _count: 100 }));
 
-        const expectedArtists = [
+        expect(artists).toEqual({
-          {
+          results: [artist1, artist2, artist3, artist4],
-            id: "2911b2d67a6b11eb804dd360a6225680",
+          total: 4,
-            name: "artist1",
+        });
-            image: { small: "sml1", medium: "med1", large: "lge1" },
-          },
-          {
-            id: "3c0b9d7a7a6b11eb9773f398e6236ad6",
-            name: "artist2",
-            image: { small: "sml2", medium: "", large: "lge2" },
-          },
-          {
-            id: "3c5113007a6b11eb87173bfb9b07f9b1",
-            name: "artist3",
-            image: { small: "", medium: "med3", large: "" },
-          },
-          {
-            id: "3ca781c27a6b11eb897ebbb5773603ad",
-            name: "artist4",
-            image: { small: "sml4", medium: "med4", large: "lge4" },
-          },
-        ];
-        expect(artists).toEqual({ results: expectedArtists, total: 4 });
 
         expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtists`, {
           params: authParams,
         });
         expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtistInfo`, {
           params: {
-            id: "2911b2d67a6b11eb804dd360a6225680",
+            id: artist1.id,
             ...authParams,
           },
         });
         expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtistInfo`, {
           params: {
-            id: "3c0b9d7a7a6b11eb9773f398e6236ad6",
+            id: artist2.id,
             ...authParams,
           },
         });
         expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtistInfo`, {
           params: {
-            id: "3c5113007a6b11eb87173bfb9b07f9b1",
+            id: artist3.id,
             ...authParams,
           },
         });
         expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtistInfo`, {
           params: {
-            id: "3ca781c27a6b11eb897ebbb5773603ad",
+            id: artist4.id,
             ...authParams,
           },
         });
@@ -212,6 +284,18 @@ describe("navidrome", () => {
     });
 
     describe("when paging specified", () => {
+      beforeEach(() => {
+        mockGET
+          .mockImplementationOnce(() => Promise.resolve(ok(PING_OK)))
+          .mockImplementationOnce(() => Promise.resolve(ok(getArtistsXml)))
+          .mockImplementationOnce(() =>
+            Promise.resolve(ok(artistInfoXml(artist2.image)))
+          )
+          .mockImplementationOnce(() =>
+            Promise.resolve(ok(artistInfoXml(artist3.image)))
+          );
+      });
+
       it("should return only the correct page of artists", async () => {
         const artists = await navidrome
           .generateToken({ username, password })
@@ -219,44 +303,20 @@ describe("navidrome", () => {
           .then((it) => navidrome.login(it.authToken))
           .then((it) => it.artists({ _index: 1, _count: 2 }));
 
-          const expectedArtists = [
+        expect(artists).toEqual({ results: [artist2, artist3], total: 4 });
-            {
-              id: "3c0b9d7a7a6b11eb9773f398e6236ad6",
-              name: "artist2",
-              image: { small: "sml2", medium: "", large: "lge2" },
-            },
-            {
-              id: "3c5113007a6b11eb87173bfb9b07f9b1",
-              name: "artist3",
-              image: { small: "", medium: "med3", large: "" },
-            },
-          ];
-          expect(artists).toEqual({ results: expectedArtists, total: 4 });
 
         expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtists`, {
           params: authParams,
         });
         expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtistInfo`, {
           params: {
-            id: "2911b2d67a6b11eb804dd360a6225680",
+            id: artist2.id,
             ...authParams,
           },
         });
         expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtistInfo`, {
           params: {
-            id: "3c0b9d7a7a6b11eb9773f398e6236ad6",
+            id: artist3.id,
-            ...authParams,
-          },
-        });
-        expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtistInfo`, {
-          params: {
-            id: "3c5113007a6b11eb87173bfb9b07f9b1",
-            ...authParams,
-          },
-        });
-        expect(axios.get).toHaveBeenCalledWith(`${url}/rest/getArtistInfo`, {
-          params: {
-            id: "3ca781c27a6b11eb897ebbb5773603ad",
             ...authParams,
           },
         });