api.pawol.nu/src/api/parole/services/__tests__/parole.test.js

import {describe, it, expect, vi, afterEach} from 'vitest';

const {default: createService} = await import('../parole.js');

function fakeDeeplResponse(text) {
  return {
    ok: true,
    json: async () => ({translations: [{text}]})
  };
}

describe('Translator (DeepL)', () => {
  const originalFetch = global.fetch;

  afterEach(() => {
    global.fetch = originalFetch;
    vi.restoreAllMocks();
  });

  it('attache un timeout à la requête DeepL', async () => {
    global.fetch = vi.fn(async () => fakeDeeplResponse('hello'));

    const strapi = {contentType: vi.fn(() => ({uid: 'api::parole.parole', kind: 'collectionType'}))};
    const service = createService({strapi});
    await service.translate('FR', 'EN', 'bonjour');

    const [, options] = global.fetch.mock.calls[0];
    expect(options.signal).toBeInstanceOf(AbortSignal);
  });
});

describe('translateLyrics', () => {
  const originalFetch = global.fetch;

  afterEach(() => {
    global.fetch = originalFetch;
    vi.restoreAllMocks();
  });

  it('continue les autres langues quand une traduction DeepL échoue', async () => {
    global.fetch = vi.fn(async (_url, options) => {
      const {target_lang: target} = JSON.parse(options.body);
      if (target === 'ES') {
        return {ok: false, status: 500, text: async () => 'boom'};
      }

      return fakeDeeplResponse(`traduit-${target}`);
    });

    const strapi = {
      contentType: vi.fn(() => ({uid: 'api::parole.parole', kind: 'collectionType'})),
      log: {error: vi.fn()}
    };
    const service = createService({strapi});
    const result = await service.translateLyrics('Bonjour le monde');

    expect(result.anglais).toContain('traduit-EN');
    expect(result.espagnol).toBeUndefined();
  });

  it('traduit les langues africaines ajoutées, sans appeler DeepL pour le yoruba', async () => {
    global.fetch = vi.fn(async (_url, options) => {
      const {target_lang: target} = JSON.parse(options.body);
      return fakeDeeplResponse(`traduit-${target}`);
    });

    const strapi = {
      contentType: vi.fn(() => ({uid: 'api::parole.parole', kind: 'collectionType'})),
      log: {error: vi.fn()}
    };
    const service = createService({strapi});
    const result = await service.translateLyrics('Bonjour le monde');

    expect(result.swahili).toContain('traduit-SW');
    expect(result.lingala).toContain('traduit-LN');
    expect(result.wolof).toContain('traduit-WO');
    expect(result.hausa).toContain('traduit-HA');
    expect(result.yoruba).toBeUndefined();

    const calledTargets = global.fetch.mock.calls.map(([, options]) => JSON.parse(options.body).target_lang);
    expect(calledTargets).not.toContain('YO');
    expect(calledTargets).not.toContain(undefined);
  });
});