| 1 | <!DOCTYPE html> |
| 2 | <html> |
| 3 | <head> |
| 4 | <title>sanity test for ReactTestUtils.act</title> |
| 5 | </head> |
| 6 | <body> |
| 7 | this page tests whether act runs properly in a browser. |
| 8 | <br /> |
| 9 | your console should say "5" |
| 10 | <script src="scheduler-unstable_mock.development.js"></script> |
| 11 | <script src="react.development.js"></script> |
| 12 | <script type="text/javascript"> |
| 13 | window.React.__CLIENT_INTERNALS_DO_NOT_USE_OR_WARN_USERS_THEY_CANNOT_UPGRADE.Scheduler = |
| 14 | window.SchedulerMock; |
| 15 | </script> |
| 16 | <script src="react-dom.development.js"></script> |
| 17 | <script src="react-dom-test-utils.development.js"></script> |
| 18 | <script> |
| 19 | // from ReactTestUtilsAct-test.js |
| 20 | function App() { |
| 21 | let [state, setState] = React.useState(0); |
| 22 | async function ticker() { |
| 23 | await null; |
| 24 | setState(x => x + 1); |
| 25 | } |
| 26 | React.useEffect(() => { |
| 27 | ticker(); |
| 28 | }, [Math.min(state, 4)]); |
| 29 | return state; |
| 30 | } |
| 31 | |
| 32 | async function testAsyncAct() { |
| 33 | const el = document.createElement("div"); |
| 34 | await ReactTestUtils.act(async () => { |
| 35 | ReactDOM.render(React.createElement(App), el); |
| 36 | }); |
| 37 | // all 5 ticks present and accounted for |
| 38 | console.log(el.innerHTML); |
| 39 | } |
| 40 | |
| 41 | testAsyncAct(); |
| 42 | </script> |
| 43 | </body> |
| 44 | </html> |