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Updated the example for mocking the localstorage #6882

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Updated the example for mocking the localstorage #6882

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11 changes: 4 additions & 7 deletions docusaurus/docs/running-tests.md
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Expand Up @@ -238,13 +238,10 @@ For example:
### `src/setupTests.js`

```js
const localStorageMock = {
getItem: jest.fn(),
setItem: jest.fn(),
removeItem: jest.fn(),
clear: jest.fn(),
};
global.localStorage = localStorageMock;
Storage.prototype.getItem = jest.fn()
Storage.prototype.setItem = jest.fn()
Storage.prototype.removeItem = jest.fn()
Storage.prototype.clear = jest.fn()
```

> Note: Keep in mind that if you decide to "eject" before creating `src/setupTests.js`, the resulting `package.json` file won't contain any reference to it, so you should manually create the property `setupTestFrameworkScriptFile` in the configuration for Jest, something like the following:
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