karma.conf.js

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

const process = require('process');
process.env.CHROME_BIN = require('puppeteer').executablePath();
module.exports = function (config) {
    config.set({
        basePath: '',
        frameworks: ['jasmine', '@angular-devkit/build-angular'],
        plugins: [
            require('karma-jasmine'),
            require('karma-chrome-launcher'),
            require('karma-jasmine-html-reporter'),
            require('@angular-devkit/build-angular/plugins/karma'),
            require('karma-coverage')
        ],
        client: {
            clearContext: false, // leave Jasmine Spec Runner output visible in browser
        },
        coverageReporter: {
            reporters: [
                {type: 'html'},
                {type: 'text-summary'}
            ],
            dir: require('path').join(__dirname, '../coverage')
        },
        preprocessors: {
            // source files, that you want to generate coverage for
            // do not include tests or libraries
            // (these files will be instrumented by Istanbul)
            'src/**/*.ts': ['coverage']
        },
        files: [
            "./assets/h5p-standalone-master/dist/main.bundle.js"
        ],
        mime: {'text/x-typescript': ['ts', 'tsx']},
        reporters: ['progress', 'coverage'],
        port: 9876,
        colors: true,
        logLevel: config.LOG_INFO,
        autoWatch: true,
        browsers: ['ChromeHeadlessNoSandbox'],
        customLaunchers: {
            ChromeHeadlessNoSandbox: {
                base: 'ChromeHeadless',
                flags: [
                    '--no-sandbox',
                    '--disable-gpu',
                    '--disable-web-security'
                ]
            }
        },
        singleRun: false
    });
};