karma.conf.js

module.exports = function (config) {
  config.set({
    basePath: '',
    frameworks: ['mocha', 'karma-typescript'],
    files: ['src/**/*.ts', 'test/unit/*.test.ts'],
    preprocessors: {
      '**/*.ts': ['karma-typescript']
    },
    karmaTypescriptConfig: {
      tsconfig: './tsconfig.json',
      exclude: ['node_modules', '.yarn', '.pnp.cjs', '.pnp.loader.mjs', 'demo'],
      compilerOptions: {
        module: 'commonjs'
      }
    },
    client: {
      mocha: {
        opts: 'test/mocha.opts'
      }
    },
    plugins: ['karma-mocha', 'karma-typescript', 'karma-firefox-launcher'],
    reporters: ['progress', 'karma-typescript'],
    port: 9876,
    colors: true,
    logLevel: config.LOG_INFO,
    autoWatch: false,
    singleRun: true,
    browsers: ['FirefoxHeadless'],
    concurrency: Infinity
  })
}