@jest/reporters
Advanced tools
Package description
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.
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;Similar to @jest/reporters, mocha-reporter is used with the Mocha testing framework to customize the output of test results. While @jest/reporters is specific to Jest, mocha-reporter offers similar customization capabilities for those using Mocha, allowing for a tailored reporting experience depending on the user's needs.
This package is a plugin for the Karma test runner that provides detailed HTML reporting for tests written with Jasmine. It's similar to @jest/reporters in that it enhances the reporting capabilities of test results, but it is specifically designed for use with Karma and Jasmine, showcasing a more visual and interactive report compared to the typically console-based reports of @jest/reporters.
Changelog
29.2.0
[@jest/cli, jest-config] A seed for the test run will be randomly generated, or set by a CLI option (#13400)[@jest/cli, jest-config] --show-seed will display the seed value in the report, and can be set via a CLI flag or through the config file (#13400)[jest-config] Add readInitialConfig utility function (#13356)[jest-core] Allow testResultsProcessor to be async (#13343)[@jest/environment, jest-environment-node, jest-environment-jsdom, jest-runtime] Add getSeed() to the jest object (#13400)[expect, @jest/expect-utils] Allow isA utility to take a type argument (#13355)[expect] Expose AsyncExpectationResult and SyncExpectationResult types (#13411)[babel-plugin-jest-hoist] Ignore TSTypeQuery when checking for hoisted references (#13367)[jest-core] Fix detectOpenHandles false positives for some special objects such as TLSWRAP (#13414)[jest-mock] Fix mocking of getters and setters on classes (#13398)[jest-reporters] Revert: Transform file paths into hyperlinks (#13399)[@jest/types] Infer type of each table correctly when the table is a tuple or array (#13381)[@jest/types] Rework typings to allow the *ReturnedWith matchers to be called with no argument (#13385)[*] Update @babel/* deps, resulting in slightly different stack traces for each (#13422)[jest-runner] Do not instrument v8 coverage data if coverage should not be collected (#13282)FAQs
Jest's reporters
The npm package @jest/reporters receives a total of 18,302,936 weekly downloads. As such, @jest/reporters popularity was classified as popular.
We found that @jest/reporters demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 3 open source maintainers collaborating on the project.
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