karma.conf.cjs

const { firefox, chromium, webkit } = require('playwright');

process.env.CHROME_BIN = chromium.executablePath();
process.env.FIREFOX_BIN = firefox.executablePath();
process.env.WEBKIT_HEADLESS_BIN = webkit.executablePath();

module.exports = function(config) {
    config.set({
        // base path that will be used to resolve all patterns (eg. files, exclude)
        basePath: '',

        // hostname for local
        hostname: '127.0.0.1',

        // frameworks to use
        // available frameworks: https://www.npmjs.com/search?q=keywords:karma-adapter
        frameworks: ['mocha', 'webpack'],

        plugins: [
            'karma-mocha',
            'karma-webpack',
            'karma-mocha-reporter',
            'karma-chrome-launcher',
            'karma-firefox-launcher',
            'karma-webkit-launcher',
            'karma-browserstack-launcher'
        ],

        // list of files / patterns to load in the browser
        files: [
            { pattern: 'test/browser.test.js', watched: false },
            { pattern: 'test/ed25519/vectors.txt', watched: false, included: false, served: true },
        ],

        // list of files / patterns to exclude
        exclude: [],

        // preprocess matching files before serving them to the browser
        // available preprocessors: https://www.npmjs.com/search?q=keywords:karma-preprocessor
        preprocessors: {
            'test/browser.test.js': 'webpack'
        },

        webpack: {},

        // available reporters: https://www.npmjs.com/search?q=keywords:karma-reporter
        reporters: ['mocha', 'BrowserStack'],

        // web server port
        port: 9876,

        // enable / disable colors in the output (reporters and logs)
        colors: true,

        // level of logging
        // possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
        logLevel: config.LOG_INFO,

        // enable / disable watching file and executing tests whenever any file changes
        autoWatch: false,

        browserStack: {
            username: process.env.BROWSERSTACK_USERNAME,
            accessKey: process.env.BROWSERSTACK_ACCESS_KEY,
            build: process.env.GITHUB_SHA,
            name: process.env.GITHUB_WORKFLOW,
            project: '@openpgpjs/noble-curves',
            timeout: 60
        },

        customLaunchers: {
            bs_safari_13_1: { // no BigInt support
              base: 'BrowserStack',
              browser: 'Safari',
              browser_version: '13.1',
              os: 'OS X',
              os_version: 'Catalina'
            }
          },
      
          captureTimeout: 6e5,
          browserDisconnectTolerance: 0,
          browserDisconnectTimeout: 6e5,
          browserSocketTimeout: 3e5,
          browserNoActivityTimeout: 6e5,

        browsers: ['ChromeHeadless', 'FirefoxHeadless', 'WebkitHeadless'],

        // Continuous Integration mode
        // if true, Karma captures browsers, runs the tests and exits
        singleRun: true,

        // Concurrency level
        // how many browser instances should be started simultaneously
        concurrency: Infinity,

        client: {
            mocha: {
                // timeout for mocha tests, default is 2 seconds. Some streaming tests can take longer.
                timeout: 30000
            }
        },

        browserDisconnectTimeout: 30000
    });
};