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Code Issues 1 Packages Projects Releases Wiki Activity

Remove ability to filter album by artist, go via getArtist instead

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This commit is contained in:
simojenki
2021-03-07 09:20:06 +11:00
parent c5a085d667
commit 3f607c5304
3 changed files with 9 additions and 99 deletions
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98
tests/in_memory_music_service.test.ts
View File

@@ -260,96 +260,14 @@ describe("InMemoryMusicService", () => {
});
});
describe("filtering by artist", () => {
describe("fetching all", () => {
it("should return all artist albums", async () => {
expect(
await musicLibrary.albums({
artistId: artist3.id,
_index: 0,
_count: 100,
})
).toEqual({
results: [
albumToAlbumSummary(artist3_album1),
albumToAlbumSummary(artist3_album2),
],
total: artist3.albums.length,
});
});
});
describe("when the artist has more albums than a single page", () => {
describe("can fetch a single page", () => {
it("should return only the albums for that page", async () => {
expect(
await musicLibrary.albums({
artistId: artist1.id,
_index: 1,
_count: 3,
})
).toEqual({
results: [
albumToAlbumSummary(artist1_album2),
albumToAlbumSummary(artist1_album3),
albumToAlbumSummary(artist1_album4),
],
total: artist1.albums.length,
});
});
});
describe("can fetch the last page", () => {
it("should return only the albums for the last page", async () => {
expect(
await musicLibrary.albums({
artistId: artist1.id,
_index: 4,
_count: 100,
})
).toEqual({
results: [albumToAlbumSummary(artist1_album5)],
total: artist1.albums.length,
});
});
});
});
it("should return empty list if the artists does not have any", async () => {
expect(
await musicLibrary.albums({
artistId: artistWithNoAlbums.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({
results: [],
total: 0,
});
});
});
describe("filtering by genre", () => {
describe("fetching all on one page", () => {
it.only("should return all the albums of that genre for all the artists", async () => {
it("should return all the albums of that genre for all the artists", async () => {
expect(
await musicLibrary.albums({
genre: "Pop",
_index: 0,
_count: 100,
genre: "Pop",
})
).toEqual({
results: [
@@ -370,14 +288,12 @@ describe("InMemoryMusicService", () => {
await musicLibrary.albums({
genre: "Pop",
_index: 1,
_count: 3,
_count: 2,
})
).toEqual({
results: [
albumToAlbumSummary(artist1_album1),
albumToAlbumSummary(artist1_album4),
albumToAlbumSummary(artist1_album5),
albumToAlbumSummary(artist3_album2),
],
total: 4,
});
@@ -388,13 +304,13 @@ describe("InMemoryMusicService", () => {
it("should return only the albums for the last page", async () => {
expect(
await musicLibrary.albums({
artistId: artist1.id,
_index: 4,
genre: "Pop",
_index: 3,
_count: 100,
})
).toEqual({
results: [albumToAlbumSummary(artist1_album5)],
total: artist1.albums.length,
results: [albumToAlbumSummary(artist3_album2)],
total: 4,
});
});
});

9
tests/in_memory_music_service.ts
View File

@@ -23,9 +23,6 @@ import {
type P<T> = (t: T) => boolean;
const all: P<any> = (_: any) => true;
const albumByArtist = (id: string): P<[Artist, Album]> => ([artist, _]) =>
artist.id === id;
const albumWithGenre = (genre: string): P<[Artist, Album]> => ([_, album]) =>
album.genre === genre;
@@ -75,10 +72,8 @@ export class InMemoryMusicService implements MusicService {
.flatMap((artist) => artist.albums.map((album) => [artist, album]))
.filter(
pipe(
pipe(O.fromNullable(q.artistId), O.map(albumByArtist)),
O.alt(() =>
pipe(O.fromNullable(q.genre), O.map(albumWithGenre))
),
O.fromNullable(q.genre),
O.map(albumWithGenre),
O.getOrElse(() => all)
)
)