fix configuration of mocking Reanimated, add additional info

Author: kligarski

versioned_docs/version-7.x/testing.md

@@ -29,24 +29,28 @@ To add the mocks, create a file `jest/setup.js` (or any other file name of your
 import 'react-native-gesture-handler/jestSetup';
 
 // Include this section for mocking react-native-reanimated
-jest.mock('react-native-reanimated', () =>
-  require('react-native-reanimated/mock')
-);
+require('react-native-reanimated').setUpTests();
 
 // Silence the warning: Animated: `useNativeDriver` is not supported because the native animated module is missing
 jest.mock('react-native/Libraries/Animated/NativeAnimatedHelper');
 ```
 
-Then we need to use this setup file in our jest config. You can add it under `setupFiles` option in a `jest.config.js` file or the `jest` key in `package.json`:
+Then we need to use this setup file in our jest config. You can add it under `setupFilesAfterEnv` option in a `jest.config.js` file or the `jest` key in `package.json`:
 
 ```json
 {
   "preset": "react-native",
-  "setupFiles": ["<rootDir>/jest/setup.js"]
+  "setupFilesAfterEnv": ["<rootDir>/jest/setup.js"]
 }
 ```
 
-Make sure that the path to the file in `setupFiles` is correct. Jest will run these files before running your tests, so it's the best place to put your global mocks.
+Make sure that the path to the file in `setupFilesAfterEnv` is correct. Jest will run these files before running your tests, so it's the best place to put your global mocks.
+
+:::info
+
+Depending on the versions of React Native Reanimated and Jest you're using, mocking Reanimated might require different configuration - please refer to [the docs of Reanimated](https://docs.swmansion.com/react-native-reanimated/docs/guides/testing#setup) for details.
+
+:::
 
 If your configuration works correctly, you can skip this section, but in some unusual cases you will need to mock `react-native-screens` as well. To add mock of the particular component, e.g. `Screen`, add the following code in `jest/setup.js` file: