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Michał Pierzchała 05db7bcaac feat: add debug.deep and debug.shallow (#37)
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### Summary

Adds API proposed by https://github.com/callstack/react-native-testing-library/pull/33#issuecomment-430302079.
Also component output is now highlighted:

<img width="259" alt="screenshot 2018-10-16 at 19 33 25" src="https://user-images.githubusercontent.com/5106466/47035614-c10efb80-d17a-11e8-99ac-00f648880008.png">


### Test plan

Added tests for `debug`.
2018-10-16 21:45:56 +02:00
..
2018-10-10 21:06:06 +02:00