lambdatest/karma-skill
karma-skill/SKILL.md
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".
$ install --global
skillsauthnpx skillsauth add lambdatest/agent-skills karma-skillInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
Security Scan Results
3 of 9 scanners reported clean
Some scanners were skipped, did not run, or reported a non-clean status. Review each row below.
3
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9
Scanners in report
Clean
TrivyContainer and dependency vulnerability scanner
95%
Clean
SemgrepStatic code analysis for vulnerabilities
95%
Clean
mcp-scan (Snyk)Model Context Protocol security validation
95%
Skipped
Snyk (dep)Open source security scanning
50%
Skipped
Socket.devSupply chain security analysis
50%
Skipped
VirusTotalMulti-engine malware detection
50%
Skipped
CrowdStrikeAdvanced threat intelligence
50%
Skipped
OSV-ScannerOpen Source Vulnerability database check
50%
Skipped
OWASP Dep-Check
50%
Last scanned: Apr 15, 2026, 1:08 PM16.7s3 files scanned
SKILL.md
- name:
- karma-skill
- description:
- >
- "karma.conf.js", "browser test runner". Triggers on:
- Karma", "karma.conf",
- category:
- unit-testing
- license:
- MIT
- 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 |
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