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.  * @jest-environment node
    
  9.  */
    
  10. 
    
  11. 'use strict';
    
  12. 
    
  13. let React;
    
  14. let ReactNoop;
    
  15. let waitForAll;
    
  16. 
    
  17. // This is a new feature in Fiber so I put it in its own test file. It could
    
  18. // probably move to one of the other test files once it is official.
    
  19. describe('ReactTopLevelText', () => {
    
  20.   beforeEach(() => {
    
  21.     jest.resetModules();
    
  22.     React = require('react');
    
  23.     ReactNoop = require('react-noop-renderer');
    
  24. 
    
  25.     const InternalTestUtils = require('internal-test-utils');
    
  26.     waitForAll = InternalTestUtils.waitForAll;
    
  27.   });
    
  28. 
    
  29.   it('should render a component returning strings directly from render', async () => {
    
  30.     const Text = ({value}) => value;
    
  31.     ReactNoop.render(<Text value="foo" />);
    
  32.     await waitForAll([]);
    
  33.     expect(ReactNoop).toMatchRenderedOutput('foo');
    
  34.   });
    
  35. 
    
  36.   it('should render a component returning numbers directly from render', async () => {
    
  37.     const Text = ({value}) => value;
    
  38.     ReactNoop.render(<Text value={10} />);
    
  39.     await waitForAll([]);
    
  40.     expect(ReactNoop).toMatchRenderedOutput('10');
    
  41.   });
    
  42. });