karma-skill

name karma-skill description Generates Karma test runner configurations for browser-based JavaScript testing. Works with Jasmine, Mocha, or QUnit. Use when user mentions "Karma", "karma.conf.js", "browser test runner". Triggers on: "Karma", "karma.conf", "karma test runner", "browser-based JS test". languages ["JavaScript","TypeScript"] category unit-testing license MIT metadata {"author":"TestMu AI","version":"1.0"} Karma Testing Skill Core Patterns karma.conf.js module . exports = function ( config ) { config. set ({ basePath : '' , frameworks : [ 'jasmine' ], files : [ 'src/**/*.js' , 'test/**/*.spec.js' ], preprocessors : { 'src/**/*.js' : [ 'coverage' ] }, reporters : [ 'progress' , 'coverage' ], coverageReporter : { type : 'html' , dir : 'coverage/' }, port : 9876 , colors : true , logLevel : config. LOG_INFO , autoWatch : true , browsers : [ 'Chrome' , 'Firefox' ], singleRun : false , concurrency : Infinity , // LambdaTest cloud browsers customLaunchers : { ChromeLT : { base : 'WebDriver' , config : { hostname : 'hub.lambdatest.com' , port : 80 }, browserName : 'Chrome' , version : 'latest' , name : 'Karma Test' , tunnel : true , user : process. env . LT_USERNAME , accessKey : process. env . LT_ACCESS_KEY } } }); }; Test with Jasmine Framework describe ( 'StringUtils' , () => { it ( 'should capitalize first letter' , () => { expect ( StringUtils . capitalize ( 'hello' )). toBe ( 'Hello' ); }); it ( 'should handle empty string' , () => { expect ( StringUtils . capitalize ( '' )). toBe ( '' ); }); }); Angular Integration // karma.conf.js for Angular frameworks : [ 'jasmine' , '@angular-devkit/build-angular' ], plugins : [ require ( 'karma-jasmine' ), require ( 'karma-chrome-launcher' ), require ( 'karma-coverage' ), require ( '@angular-devkit/build-angular/plugins/karma' ) ], Setup: npm install karma karma-jasmine karma-chrome-launcher karma-coverage --save-dev Run: npx karma start or npx karma start --single-run Init: npx karma init karma.conf.js Deep Patterns See reference/playbook.md for production-grade patterns: Section What You Get §1 Production Configuration Full karma.conf.js with coverage thresholds, reporters, CI launchers §2 Component Testing Service mocking, DOM interaction, form validation patterns §3 HTTP Service Testing HttpTestingController, error handling, retry testing §4 Directive & Pipe Testing Host component pattern, custom pipes with edge cases §5 RxJS & Async Patterns debounceTime, switchMap cancellation, subscription cleanup §6 Router & NgRx Testing RouterTestingModule, MockStore, selector overrides §7 LambdaTest Integration Cloud browser configuration for cross-browser testing §8 CI/CD Integration GitHub Actions with coverage, test reporting §9 Debugging Table 12 common problems with causes and fixes §10 Best Practices 14-item checklist for production Angular testing