Mock NativeAnimatedHelper in the Jest preset

Summary:
Automatically mock `NativeAnimatedHelper` in the React Native Jest preset and add a regression test that verifies the helper is mocked.

Changelog: [Internal]

Differential Revision: D120986825

Author: rubennorte

packages/jest-preset/jest/__tests__/setup-test.js

@@ -10,6 +10,25 @@
 
 import NativeExceptionsManager from 'react-native/Libraries/Core/NativeExceptionsManager';
 
+test('NativeAnimatedHelper is a mock', () => {
+  const consoleWarn = jest.spyOn(console, 'warn').mockImplementation(() => {});
+
+  try {
+    const NativeAnimatedHelper: {
+      assertNativeAnimatedModule: () => void,
+    } = jest.requireMock(
+      'react-native/src/private/animated/NativeAnimatedHelper',
+    ).default;
+
+    expect(
+      jest.isMockFunction(NativeAnimatedHelper.assertNativeAnimatedModule),
+    ).toBe(true);
+    expect(consoleWarn).not.toHaveBeenCalled();
+  } finally {
+    consoleWarn.mockRestore();
+  }
+});
+
 test('NativeExceptionsManager is a mock', () => {
   expect(jest.isMockFunction(NativeExceptionsManager.reportException)).toBe(
     true,

packages/jest-preset/jest/setup.js

@@ -176,3 +176,4 @@ mock(
   // $FlowFixMe[incompatible-type]
   'm#./mocks/Vibration',
 );
+mock('m#react-native/src/private/animated/NativeAnimatedHelper');