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Releases: callstackincubator/react-native-harness

v1.0.0-alpha.17

22 Oct 15:22
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v1.0.0-alpha.17
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[1.0.0-alpha.17] (2025-10-22)

Features

  • Metro Regression Workaround (#21): Changed the way config is augmented to return an async function, working around a regression in Metro.

  • Migration Prompts (#19): Added migration guide to help users transition from the old CLI to the new Jest-based workflow. Users with unsupported configuration properties will be prompted to migrate.

Bug Fixes

  • Bundle URL Fix (#20): Fixed incorrect URL with double slashes used during test bundling, which was causing failures due to changed behavior in React Native or Metro.
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v1.0.0-alpha.16

22 Oct 10:24
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v1.0.0-alpha.16
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v1.0.0-alpha.16

[1.0.0-alpha.16] (2025-10-22)

Features

  • Split Setup and Setup After Env (#18): Split setup files into separate setup and setup after environment phases for better control over test initialization.

  • UI Components Support (#17): Added basic support for testing UI components in React Native Harness, enabling component-level testing capabilities.

  • Jest Wrapper CLI (#16): Replaced custom CLI implementation with a Jest wrapper, providing better integration with the Jest ecosystem and improved compatibility.

  • Jest Preset Re-export (#15): Re-exported Jest preset from the main package for easier configuration and setup.

  • Watch Mode Performance (#14): Significantly improved watch mode speed, making the development experience faster and more responsive.

  • Code Frame Error Display (#13): Enhanced error reporting in Jest with code frames, making it easier to identify and fix issues by showing the exact location of errors in context.

  • Jest Globals Detection (#12): Added validation to throw errors when Jest globals are used, ensuring proper test isolation and preventing common testing pitfalls.

  • Coverage Support (#10): Implemented code coverage reporting capabilities.

  • Reset Environment Config (#11): Added resetEnvironmentBetweenTestFiles configuration property for better test isolation control.

  • Auto-apply Babel Plugins (#9): Babel plugins are now automatically applied, reducing manual configuration requirements.

  • Auto-inject Harness (#8): Harness is now automatically injected into the test environment, simplifying setup process.

  • Setup Files Support (#6): Added support for Jest setup files, allowing for better test environment configuration.

  • Harness-based Jest Runner (#4): Implemented a custom Jest runner built on the Harness architecture.

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