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jest-native

docs/ecosystem-jest-native.mdx

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:::warning

This package is deprecated and is no longer actively maintained.

We encourage you to migrate to React Native Testing Library, v12.4 or later, which includes modern built-in Jest matchers based on the matchers for this repository. The migration process should be relatively straightforward, we have a migration guide available.

:::

Jest Native is a companion library for React Native Testing Library that provides custom element matchers for Jest.

bash
npm install --save-dev @testing-library/jest-native
jsx
const {queryByTestId} = render(
  <View>
    <View testID="not-empty">
      <Text testID="empty" />
    </View>
    <Text testID="visible">Visible Example</Text>
  </View>,
)

expect(queryByTestId('not-empty')).not.toBeEmpty()

Note: when using some of these matchers, you may need to make sure you use a query function (like queryByTestId) rather than a get function (like getByTestId). Otherwise the get* function could throw an error before your assertion.

Check out Jest Native's documentation for a full list of available matchers.