const sinon = require('sinon'); const { moviesMock, filteredMoviesMock } = require('./movies'); const getAllStub = sinon.stub(); getAllStub.withArgs('movies').resolves(moviesMock); const tagQuery = { tags: { $in: ['Drama'] } }; getAllStub.withArgs('movies', tagQuery).resolves(filteredMoviesMock('Drama')); const createStub = sinon.stub().resolves(moviesMock[0].id); class MongoLibMock { list(collection, query) { return getAllStub(collection, query); } create(collection, data) { return createStub(collection, data); } } module.exports = { getAllStub, createStub, MongoLibMock };