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@SimenB SimenB released this 16 Aug 10:37
· 5723 commits to main since this release
v16.0.0
dee19a2
  • Previously failed tests are now always run first.
  • A new concurrent reporter shows currently running tests, a test summary, a progress bar and estimated remaining time if possible.
  • Improved CLI colors.
  • jest <pattern> is now case-insensitive.
  • Added it.only, it.skip, test.only, test.skip and xtest.
  • Added --testNamePattern=pattern or -t <pattern> to run individual tests in test files.
  • Jest now warns for duplicate mock files.
  • Pressing a, o, p, q or enter while tests are running in the watch mode, the test run will be interrupted.
  • --bail now works together with --watch.
  • Added test.concurrent for concurrent async tests.
  • Jest now automatically considers files and tests with the .jsx extension.
  • Added jest.clearAllMocks to clear all mocks manually.
  • Rewrote Jest's snapshot implementation. jest-snapshot can now be more easily integrated into other test runners and used in other projects.
  • This requires most snapshots to be updated when upgrading Jest.
  • Objects and Arrays in snapshots are now printed with a trailing comma.
  • Function names are not printed in snapshots any longer to reduce issues with code coverage instrumentation and different Node versions.
  • Snapshots are now sorted using natural sort order.
  • Snapshots are not marked as obsolete any longer when using fit or when an error is thrown in a test.
  • Finished migration of Jasmine matchers to the new Jest matchers.
  • Pretty print toHaveBeenLastCalledWith, toHaveBeenCalledWith, lastCalledWith and toBeCalledWith failure messages.
  • Added toBeInstanceOf matcher.
  • Added toContainEqual matcher.
  • Added toThrowErrorMatchingSnapshot matcher.
  • Improved moduleNameMapper resolution.
  • Module registry fixes.
  • Fixed invocation of the setupTestFrameworkScriptFile script to make it easier to use chai together with Jest.
  • Removed react-native special case in Jest's configuration.
  • Added --findRelatedTests <fileA> <fileB> cli option to run tests related to the specified files.
  • Added jest.deepUnmock to babel-plugin-jest-hoist.
  • Added jest.runTimersToTime which is useful together with fake timers.
  • Improved automated mocks for ES modules compiled with babel.
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