Testing

Triggering layout events in tests

TEST_ID is exported as constants that can be used in your testing library of choice.

React Native Chat uses onLayout to determine the height of the chat container. To trigger onLayout during your tests:

const WIDTH = 200
const HEIGHT = 2000

const loadingWrapper = getByTestId(TEST_ID.LOADING_WRAPPER)
fireEvent(loadingWrapper, 'layout', {
  nativeEvent: {
    layout: {
      width: WIDTH,
      height: HEIGHT,
    },
  },
})

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