firestore-vitest/__tests__/options.test.js

Vitest helper for mocking Google Cloud Firestore

import { FakeFirestore } from '../index.js';
import { mockCollection, mockDoc } from '../mocks/firestore.js';

describe('Firestore options', () => {
  beforeEach(() => {
    vi.resetModules();
    vi.clearAllMocks();
  });

  const database = {
    characters: [
      {
        id: 'homer',
        name: 'Homer',
        occupation: 'technician',
        address: { street: '742 Evergreen Terrace' },
      },
      { id: 'krusty', name: 'Krusty', occupation: 'clown' },
      {
        id: 'bob',
        name: 'Bob',
        occupation: 'insurance agent',
        _collections: {
          family: [
            { id: 'violet', name: 'Violet', relation: 'daughter' },
            { id: 'dash', name: 'Dash', relation: 'son' },
            { id: 'jackjack', name: 'Jackjack', relation: 'son' },
            { id: 'helen', name: 'Helen', relation: 'wife' },
          ],
        },
      },
    ],
  };

  const options = {
    includeIdsInData: true,
  };

  const db = new FakeFirestore(database, options);

  describe('Single records versus queries', () => {
    test('it can fetch a single record', async () => {
      expect.assertions(7);
      const record = await db.collection('characters').doc('krusty').get();
      expect(mockCollection).toHaveBeenCalledWith('characters');
      expect(mockDoc).toHaveBeenCalledWith('krusty');
      expect(record.exists).toBe(true);
      expect(record.id).toBe('krusty');
      const data = record.data();
      expect(data).toHaveProperty('name', 'Krusty');
      expect(data).toHaveProperty('occupation', 'clown');
      expect(data).toHaveProperty('id', 'krusty');
    });
  });
});