karma.conf.js

// Karma configuration file, see link for more information
// https://karma-runner.github.io/1.0/config/configuration-file.html

module.exports = function (config) {
  const configuration = {
    basePath: "",
    frameworks: ["jasmine", "@angular-devkit/build-angular"],
    plugins: [
      require("karma-jasmine"),
      require("karma-chrome-launcher"),
      require("karma-jasmine-html-reporter"),
      require("karma-coverage-istanbul-reporter"),
      require("@angular-devkit/build-angular/plugins/karma"),
    ],
    client: {
      clearContext: false, // leave Jasmine Spec Runner output visible in browser
    },
    coverageIstanbulReporter: {
      dir: require("path").join(__dirname, "coverage"),
      reports: ["html", "lcovonly"],
      fixWebpackSourcePaths: true,
    },
    angularCli: {
      environment: "dev",
    },
    reporters: ["progress", "kjhtml"],
    port: 9876,
    colors: true,
    logLevel: config.LOG_INFO,
    autoWatch: true,
    browsers: ["Chrome"],
    customLaunchers: {
      Chrome_travis_ci: {
        base: "Chrome",
        flags: ["--no-sandbox"],
      },
    },
    singleRun: false,
  };

  if (process.env.TRAVIS) {
    configuration.browsers = ["Chrome_travis_ci"];
  }

  config.set(configuration);
};