Configure Your JavaScript Testing

The karma.conf.js configuration file defines how Karma runs tests in browsers, including frameworks, reporters, and preprocessor options.

📘 View Configuration Guide

Framework Setup

Configure Babel, TypeScript, or plain JavaScript to execute before your tests run.

Test Coverage

Generate detailed coverage reports for your JavaScript codebase using integrated tools.

Browser Integration

Select Chrome, Firefox, or headless environments for automated test execution.

Basic Configuration

            module.exports = function (config) {
                config.set({
                    frameworks: ['jasmine'],
                    files: [
                        'src/**/*.js',
                        { pattern: 'test/**/*.spec.js' }
                    ],
                    browsers: ['ChromeHeadless'],
                    coverageReporter: {
                        type: 'html',
                        dir: 'coverage/'
                    }
                });
            };

This example configures Jasmine tests to run automatically in a headless Chrome browser and outputs HTML coverage reports.