You should do something like this: it('rejects...', () => { const Container = createUserContainer(CreateUser); const wrapper ... ... <看更多>

resolves / .rejects. 也可在 expect 陳述句中使用 .resolves matcher，Jest 會等待promise 的resolve。如果promise 被reject，測試會自動 ... ... <看更多>

jest version: 20.0.3 For sync method, it works in this way. test('example', () => { function fn() { throw new Error('some error'); } ... ... <看更多>

jest version: 20.0.3 For sync method, it works in this way. test('example', () => { function fn() { throw new Error('some error'); } ... ... <看更多>

Link to repo (highly encouraged). Debug log: # content of ts-jest.log : envinfo. System: ... ... <看更多>

This video covers how to test a function which makes an HTTP call with fetch, mocking it in Jest to avoid actual ... ... <看更多>

jest version: 20.0.3. For sync method, it works in this way. test('example', () => { function fn() { throw new Error('some error'); } expect(fn). ... <看更多>