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Mock implementation of useDispatch with possibility of dynamic response
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| import * as ReactRedux from 'react-redux'; | |
| describe('nothing', () => { | |
| let loginFn = jest.fn(() => null); | |
| jest.spyOn(ReactRedux, 'useDispatch').mockImplementation(() => { | |
| return loginFn; | |
| }); | |
| }) | |
| it('does something', () => { | |
| const actual = render(<LoginComponent />); // component doing let dispatch = useDispatch(loginAction) | |
| fireEvent.press(actual.getByText(/Log in$/)); | |
| expect(loginFn).toHaveBeenCalledTimes(1); | |
| expect(loginFn).toHaveBeenCalledWith('something'); | |
| }) | |
| }) |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import * as ReactRedux from 'react-redux'; | |
| describe('nothing', () => { | |
| jest.spyOn(ReactRedux, 'useSelector').mockImplementation(state => { | |
| return {loginStatus: UNPERFORMED}; | |
| }); | |
| }) | |
| it('does something', () => { | |
| const actual = render(<LoginComponent />); // component having let loginStatus = useSelector(useSelector(state => state.user.loginStatus)) | |
| fireEvent.press(actual.getByText(/Log in$/)); | |
| expect(loginFn).toHaveBeenCalledTimes(1); | |
| expect(loginFn).toHaveBeenCalledWith('something'); | |
| }) | |
| }) |
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