How to add mock for TabBarIOS.Item?

[osadchuk]

TabBarIOS is not mocked:

TypeError: Cannot read property '_tag' of null

  at ReactNativeBaseComponent.Mixin.mountComponent (node_modules/react/lib/ReactNativeBaseComponent.js:181:45)
  at Object.ReactReconciler.mountComponent (node_modules/react/lib/ReactReconciler.js:47:35)
  at ReactCompositeComponentMixin.performInitialMount (node_modules/react/lib/ReactCompositeComponent.js:370:34)
  at ReactCompositeComponentMixin.mountComponent (node_modules/react/lib/ReactCompositeComponent.js:257:21)
  at Object.ReactReconciler.mountComponent (node_modules/react/lib/ReactReconciler.js:47:35)
  at ReactCompositeComponentMixin.performInitialMount (node_modules/react/lib/ReactCompositeComponent.js:370:34)
  at ReactCompositeComponentMixin.mountComponent (node_modules/react/lib/ReactCompositeComponent.js:257:21)
at Object.ReactReconciler.mountComponent (node_modules/react/lib/ReactReconciler.js:47:35)
  at ReactCompositeComponentMixin.performInitialMount (node_modules/react/lib/ReactCompositeComponent.js:370:34)
  at ReactCompositeComponentMixin.mountComponent (node_modules/react/lib/ReactCompositeComponent.js:257:21)

Adding a mock for TabBarIOS (in the same way as the mock for Modal was added: #1739) resolves this error. However, TabBarIOS.Item returns the same error, and trying to mock TabBarIOS.Item the same way:

mock('TabBarIOS.Item', () => mockReactNative.mockComponent('TabBarIOS.Item')).

results in the following error:

Cannot find module 'TabBarIOS.Item' from 'setup.js'

  at Resolver.resolveModule (node_modules/jest-resolve/build/index.js:151:17)

Is there a way to mock tab bar items? I'd be happy to submit a PR with the mocks for both, just need a little help with the syntax (I'm pretty new to Jest).

Thanks!

[browniefed]

https://github.com/RealOrangeOne/react-native-mock

[osadchuk]

Thanks - managed to get that working, so I'll close this issue.

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