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@jest/reporters
Advanced tools
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.
25.4.0
[expect]
Support async function
s in toThrow
(#9817)[jest-console]
Add code frame to console.error
and console.warn
(#9741)[jest-runtime, jest-jasmine2, jest-circus]
Experimental, limited ECMAScript Modules support (#9772 & #9842)[expect]
Restore support for passing functions to toHaveLength
matcher (#9796)[jest-changed-files]
--only-changed
should include staged files (#9799)[jest-circus]
Throw on nested test definitions (#9828)[jest-each]
each
will throw an error when called with too many arguments (#9818)[jest-runner]
Don't print warning to stdout when using --json
(#9843)FAQs
Jest's reporters
The npm package @jest/reporters receives a total of 22,921,142 weekly downloads. As such, @jest/reporters popularity was classified as popular.
We found that @jest/reporters demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 3 open source maintainers collaborating on the project.
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