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Explain where act comes from (#3237)

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Co-authored-by: Sebastian Silbermann <silbermann.sebastian@gmail.com>
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Toru Kobayashi
2020-09-02 16:31:52 +09:00
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content/docs/testing-recipes.md
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@@ -57,7 +57,7 @@ You may use a different pattern, but keep in mind that we want to execute the cl
### `act()` {#act}
When writing UI tests, tasks like rendering, user events, or data fetching can be considered as "units" of interaction with a user interface. React provides a helper called `act()` that makes sure all updates related to these "units" have been processed and applied to the DOM before you make any assertions:
When writing UI tests, tasks like rendering, user events, or data fetching can be considered as "units" of interaction with a user interface. `react-dom/test-utils` provides a helper called [`act()`](/docs/test-utils.html#act) that makes sure all updates related to these "units" have been processed and applied to the DOM before you make any assertions:
```js
act(() => {