The @jest/reporters package provides utilities for handling and customizing the output of test results when using Jest, a popular JavaScript testing framework. It allows developers to create custom reporters to modify how test results are reported, making it easier to integrate with various CI tools, generate reports in different formats, or enhance the testing experience with additional logging and notifications.

What are @jest/reporters's main functionalities?

Custom Test Reporter

This feature allows developers to create a custom test reporter by implementing methods that Jest calls at different stages of the test run. The example shows a basic custom reporter that logs messages at the start and end of the test suite, as well as after each test result.

class MyCustomReporter {
  onRunStart(results, options) {
    console.log('Test suite started');
  }

  onTestResult(test, testResult, aggregatedResult) {
    console.log(`Test ${test.path} finished with ${testResult.numFailingTests} failures`);
  }

  onRunComplete(contexts, results) {
    console.log('All tests completed');
  }
}

module.exports = MyCustomReporter;

Other packages similar to @jest/reporters

Changelog

Source

29.6.0

Features

[jest-circus, jest-snapshot] Add support for snapshot matchers in concurrent tests (#14139)
[jest-cli] Include type definitions to generated config files (#14078)
[jest-snapshot] Support arrays as property matchers (#14025)
[jest-core, jest-circus, jest-reporter, jest-runner] Added support for reporting about start individual test cases using jest-circus (#14174)

Fixes

[jest-circus] Prevent false test failures caused by promise rejections handled asynchronously (#14110)
[jest-config] Handle frozen config object (#14054)
[jest-config] Allow coverageDirectory and collectCoverageFrom in project config (#14180)
[jest-core] Always use workers in watch mode to avoid crashes (#14059).
[jest-environment-jsdom, jest-environment-node] Fix assignment of customExportConditions via testEnvironmentOptions when custom env subclass defines a default value (#13989)
[jest-matcher-utils] Fix copying value of inherited getters (#14007)
[jest-mock] Tweak typings to allow jest.replaceProperty() replace methods (#14008)
[jest-mock] Improve user input validation and error messages of spyOn and replaceProperty methods (#14087)
[jest-runtime] Bind jest.isolateModulesAsync to this (#14083)
[jest-runtime] Forward wrapperLength to the Script constructor as columnOffset for accurate debugging (#14148)
[jest-runtime] Guard _isMockFunction access with in (#14188)
[jest-snapshot] Fix a potential bug when not using prettier and improve performance (#14036)
[@jest/transform] Do not instrument .json modules (#14048)
[jest-worker] Restart a shut down worker before sending it a task (#14015)

Chore & Maintenance

[*] Update semver dependency to get vulnerability fix (#14262)
[docs] Updated documentation for the --runTestsByPath CLI command (#14004)
[docs] Updated documentation regarding the synchronous fallback when asynchronous code transforms are unavailable (#14056)
[docs] Update jest statistics of use and downloads in website Index.

The README file is missing

FAQs

What is @jest/reporters?

Is @jest/reporters popular?

Is @jest/reporters well maintained?

Last updated on 04 Jul 2023

Did you know?

Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.

Install