| 1 | /** |
| 2 | * Copyright (c) Meta Platforms, Inc. and affiliates. |
| 3 | * |
| 4 | * This source code is licensed under the MIT license found in the |
| 5 | * LICENSE file in the root directory of this source tree. |
| 6 | * |
| 7 | * @emails react-core |
| 8 | */ |
| 9 | |
| 10 | 'use strict'; |
| 11 | |
| 12 | let React; |
| 13 | let ReactDOMClient; |
| 14 | let act; |
| 15 | |
| 16 | let MockedComponent; |
| 17 | let ReactDOMServer; |
| 18 | |
| 19 | describe('ReactMockedComponent', () => { |
| 20 | beforeEach(() => { |
| 21 | React = require('react'); |
| 22 | ReactDOMClient = require('react-dom/client'); |
| 23 | ReactDOMServer = require('react-dom/server'); |
| 24 | act = require('internal-test-utils').act; |
| 25 | |
| 26 | MockedComponent = class extends React.Component { |
| 27 | render() { |
| 28 | throw new Error('Should not get here.'); |
| 29 | } |
| 30 | }; |
| 31 | // This is close enough to what a Jest mock would give us. |
| 32 | MockedComponent.prototype.render = jest.fn(); |
| 33 | }); |
| 34 | |
| 35 | it('should allow a mocked component to be rendered', async () => { |
| 36 | const container = document.createElement('container'); |
| 37 | const root = ReactDOMClient.createRoot(container); |
| 38 | await act(() => { |
| 39 | root.render(<MockedComponent />); |
| 40 | }); |
| 41 | }); |
| 42 | |
| 43 | it('should allow a mocked component to be updated in dev', async () => { |
| 44 | const container = document.createElement('container'); |
| 45 | const root = ReactDOMClient.createRoot(container); |
| 46 | await act(() => { |
| 47 | root.render(<MockedComponent />); |
| 48 | }); |
| 49 | await act(() => { |
| 50 | root.render(<MockedComponent />); |
| 51 | }); |
| 52 | }); |
| 53 | |
| 54 | it('should allow a mocked component to be rendered in dev (SSR)', () => { |
| 55 | ReactDOMServer.renderToString(<MockedComponent />); |
| 56 | }); |
| 57 | }); |