Rick Hanlon d1e312d8ce Fix ActivityIndicator snapshot test, add toMatchShallowSnapshot
Summary:
This diff adds a custom matcher which will wrap a given component and shallow render it, snapshotting the result with the formatting users will see when they do the same.

I also update the ActivityIndicator test to use this new strategy, and add an additional check that the displayName is set.

For context see:
- https://github.com/facebook/react-native/pull/21950
- https://github.com/rajivshah3/rn-broken-snapshot/blob/broken-example/__tests__/App.spec.js#L3
- https://github.com/facebook/react-native/issues/21937

Reviewed By: TheSavior

Differential Revision: D13326689

fbshipit-source-id: 8ed2302a8aad12962fa2498a46d2502ccfb5c737
2018-12-17 19:48:38 +01:00
..
2018-11-08 17:59:10 -08:00