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react-testing-library now supports act (#1635)

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* react-testing-library now supports `act`

* fix typo
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Kent C. Dodds
2019-02-06 09:27:30 -07:00
committed by Dan Abramov
parent 2a5b6cc103
commit f846c4da1b
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content/blog/2019-02-06-react-v16.8.0.md
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@@ -50,7 +50,7 @@ Even while Hooks were in alpha, the React community created many interesting [ex
## Testing Hooks
We have added a new API called `ReactTestUtils.act()` in this release. It ensures that the behavior in your tests matches what happens in the browser more closely. We recommend to wrap any code rendering and triggering updates to your components into `act()` calls. Testing libraries like [`react-testing-library`](https://github.com/kentcdodds/react-testing-library) can also wrap their APIs with it.
We have added a new API called `ReactTestUtils.act()` in this release. It ensures that the behavior in your tests matches what happens in the browser more closely. We recommend to wrap any code rendering and triggering updates to your components into `act()` calls. Testing libraries can also wrap their APIs with it (for example, [`react-testing-library`](https://github.com/kentcdodds/react-testing-library)'s `render` and `fireEvent` utilities do this).
For example, the counter example from [this page](/docs/hooks-effect.html) can be tested like this: