wdio.conf.ts

import * as path from 'path';
import * as url from 'url';
import * as fs from 'fs';
import type { Options } from '@wdio/types'
import GlobalSetup from './tests/e2e/global-setup.ts';

const dirname = path.dirname(url.fileURLToPath(import.meta.url));

const DOWNLOADS_DIR = path.join(dirname, 'tests', 'e2e', 'downloads');
const WORDPRESS_DIR_NAME = process.env.WORDPRESS_FOLDER || process.env.WORDPRESS_VERSION || '';

if (!fs.existsSync(DOWNLOADS_DIR)) {
  fs.mkdirSync(DOWNLOADS_DIR);
}

async function saveScreenshotIfError(test, error) {
  if (error && !error.matcherResult) {
    const failureScreenshotName = test.title.replace(/\s+/g, '_').replace(/[^a-zA-Z0-9_]/g, '') + '_failure';
    try {
      await browser.saveFullPageScreen(failureScreenshotName);
    } catch (e) {
      console.log(`could not save failure screenshot ${failureScreenshotName}`);
    }
  }
}

function checkWpDebugLogsForError() {
  const wpDebugLogPath = path.join(dirname, 'docker', 'wordpress', WORDPRESS_DIR_NAME, 'wp-content', 'debug.log');
  const wpDebugLogConcatPath = path.join(dirname, 'docker', 'wordpress', WORDPRESS_DIR_NAME, 'wp-content', 'debug.concat.log');

  if (!fs.existsSync(wpDebugLogPath)) {
    return;
  }

  try {
    let contents = fs.readFileSync(wpDebugLogPath).toString('utf-8');

    fs.appendFileSync(wpDebugLogConcatPath, contents);

    let lines = contents.split("\n");
    let matomoErrors = lines.filter((line) => {
      return /php (notice|warning|error|deprecated):/i.test(line) && line.toLowerCase().includes('matomo');
    });

    if (matomoErrors.length) {
      throw new Error(`Found Matomo related errors/warnings in debug.log:\n- ${matomoErrors.join("\n- ")}`);
    }
  } finally {
    fs.unlinkSync(wpDebugLogPath); // reset the wp-debug log file
  }
}

export const config: Options.Testrunner = {
  //
  // ====================
  // Runner Configuration
  // ====================
  // WebdriverIO supports running e2e tests as well as unit and component tests.
  runner: 'local',
  autoCompileOpts: {
    autoCompile: true,
    tsNodeOpts: {
      project: './tsconfig.json',
      transpileOnly: true
    }
  },

  //
  // ==================
  // Specify Test Files
  // ==================
  // Define which test specs should run. The pattern is relative to the directory
  // of the configuration file being run.
  //
  // The specs are defined as an array of spec files (optionally using wildcards
  // that will be expanded). The test for each spec file will be run in a separate
  // worker process. In order to have a group of spec files run in the same worker
  // process simply enclose them in an array within the specs array.
  //
  // If you are calling `wdio` from an NPM script (see https://docs.npmjs.com/cli/run-script),
  // then the current working directory is where your `package.json` resides, so `wdio`
  // will be called from there.
  //
  specs: [
    './tests/e2e/**/*.e2e.ts'
  ],
  // Patterns to exclude. (all executed without parallelism before these tests, see wdio.conf.tracking.ts)
  exclude: [
    './tests/e2e/update.e2e.ts',
    './tests/e2e/mwp-admin.marketplace.e2e.ts',
    './tests/e2e/tracking.e2e.ts',
    './tests/e2e/tracking.ecommerce.e2e.ts',
    './tests/e2e/tracking.tag-manager.e2e.ts',
    './tests/e2e/mwp-language.e2e.ts',
  ],
  //
  // ============
  // Capabilities
  // ============
  // Define your capabilities here. WebdriverIO can run multiple capabilities at the same
  // time. Depending on the number of capabilities, WebdriverIO launches several test
  // sessions. Within your capabilities you can overwrite the spec and exclude options in
  // order to group specific specs to a specific capability.
  //
  // First, you can define how many instances should be started at the same time. Let's
  // say you have 3 different capabilities (Chrome, Firefox, and Safari) and you have
  // set maxInstances to 1; wdio will spawn 3 processes. Therefore, if you have 10 spec
  // files and you set maxInstances to 10, all spec files will get tested at the same time
  // and 30 processes will get spawned. The property handles how many capabilities
  // from the same test should run tests.
  //
  maxInstances: 5,
  //
  // If you have trouble getting all important capabilities together, check out the
  // Sauce Labs platform configurator - a great tool to configure your capabilities:
  // https://saucelabs.com/platform/platform-configurator
  //
  capabilities: [
    {
      browserName: 'firefox',
      "moz:debuggerAddress": true,
      "moz:firefoxOptions": {
        args: ['-headless'],
        prefs: {
          "browser.download.dir": DOWNLOADS_DIR,
          "browser.download.folderList": 2,
          "browser.download.manager.showWhenStarting": false,
          "browser.helperApps.neverAsk.saveToDisk": "*/*"
        }
      }
    } as any,
  ],

  //
  // ===================
  // Test Configurations
  // ===================
  // Define all options that are relevant for the WebdriverIO instance here
  //
  // Level of logging verbosity: trace | debug | info | warn | error | silent
  logLevel: 'error',
  //
  // Set specific log levels per logger
  // loggers:
  // - webdriver, webdriverio
  // - @wdio/browserstack-service, @wdio/devtools-service, @wdio/sauce-service
  // - @wdio/mocha-framework, @wdio/jasmine-framework
  // - @wdio/local-runner
  // - @wdio/sumologic-reporter
  // - @wdio/cli, @wdio/config, @wdio/utils
  // Level of logging verbosity: trace | debug | info | warn | error | silent
  // logLevels: {
  //     webdriver: 'info',
  //     '@wdio/appium-service': 'info'
  // },
  //
  // If you only want to run your tests until a specific amount of tests have failed use
  // bail (default is 0 - don't bail, run all tests).
  bail: 0,
  //
  // Set a base URL in order to shorten url command calls. If your `url` parameter starts
  // with `/`, the base url gets prepended, not including the path portion of your baseUrl.
  // If your `url` parameter starts without a scheme or `/` (like `some/path`), the base url
  // gets prepended directly.
  baseUrl: 'http://localhost:3000',
  //
  // Default timeout for all waitFor* commands.
  waitforTimeout: 10000,
  //
  // Default timeout in milliseconds for request
  // if browser driver or grid doesn't send response
  connectionRetryTimeout: 120000,
  //
  // Default request retries count
  connectionRetryCount: 3,
  //
  // Test runner services
  // Services take over a specific job you don't want to take care of. They enhance
  // your test setup with almost no effort. Unlike plugins, they don't add new
  // commands. Instead, they hook themselves up into the test process.
  services: [
    'intercept',

    [
      'image-comparison',
      {
        baselineFolder: path.join(dirname, 'tests/e2e/baseline/'),
        formatImageName: '{tag}',
        screenshotPath: path.join(dirname, 'tests/e2e/'),
        savePerInstance: true,
        autoSaveBaseline: false,
        blockOutStatusBar: true,
        blockOutToolBar: true,
        // Options for the tabbing image
        tabbableOptions: {
          circle: {
            size: 18,
            fontSize: 18,
            // ...
          },
          line: {
            color: '#ff221a', // hex-code or for example words like `red|black|green`
            width: 3,
          },
        },
      },
    ],
  ],
  //
  // Framework you want to run your specs with.
  // The following are supported: Mocha, Jasmine, and Cucumber
  // see also: https://webdriver.io/docs/frameworks
  //
  // Make sure you have the wdio adapter package for the specific framework installed
  // before running any tests.
  framework: 'mocha',

  //
  // The number of times to retry the entire specfile when it fails as a whole
  // specFileRetries: 1,
  //
  // Delay in seconds between the spec file retry attempts
  // specFileRetriesDelay: 0,
  //
  // Whether or not retried spec files should be retried immediately or deferred to the end of the queue
  // specFileRetriesDeferred: false,
  //
  // Test reporter for stdout.
  // The only one supported by default is 'dot'
  // see also: https://webdriver.io/docs/dot-reporter
  reporters: ['spec'],

  // Options to be passed to Mocha.
  // See the full list at http://mochajs.org/
  mochaOpts: {
      ui: 'bdd',
      timeout: 300000,
  },

  //
  // =====
  // Hooks
  // =====
  // WebdriverIO provides several hooks you can use to interfere with the test process in order to enhance
  // it and to build services around it. You can either apply a single function or an array of
  // methods to it. If one of them returns with a promise, WebdriverIO will wait until that promise got
  // resolved to continue.
  async afterTest(test, context, params) {
    let { error } = params;

    if (error) {
      await saveScreenshotIfError(test, error);
      return;
    }

    try {
      checkWpDebugLogsForError();
    } catch (err) {
      await saveScreenshotIfError(test, err);
      throw err;
    }
  },

  async afterHook(test, context, { error }) {
    await saveScreenshotIfError(test, error);
  },

  /**
   * Gets executed once before all workers get launched.
   * @param {object} config wdio configuration object
   * @param {Array.<Object>} capabilities list of capabilities details
   */
  onPrepare: async function (config, capabilities) {
    try {
      console.log('Performing one time setup...');
      await GlobalSetup.setUp();
    } catch (e) {
      console.log(`Aborting, failed to finish global setup:\n${e.stack}`);
      process.exit(1);
    }
  },
  /**
   * Gets executed before a worker process is spawned and can be used to initialise specific service
   * for that worker as well as modify runtime environments in an async fashion.
   * @param  {string} cid      capability id (e.g 0-0)
   * @param  {object} caps     object containing capabilities for session that will be spawn in the worker
   * @param  {object} specs    specs to be run in the worker process
   * @param  {object} args     object that will be merged with the main configuration once worker is initialized
   * @param  {object} execArgv list of string arguments passed to the worker process
   */
  // onWorkerStart: function (cid, caps, specs, args, execArgv) {
  // },
  /**
   * Gets executed just after a worker process has exited.
   * @param  {string} cid      capability id (e.g 0-0)
   * @param  {number} exitCode 0 - success, 1 - fail
   * @param  {object} specs    specs to be run in the worker process
   * @param  {number} retries  number of retries used
   */
  // onWorkerEnd: function (cid, exitCode, specs, retries) {
  // },
  /**
   * Gets executed just before initialising the webdriver session and test framework. It allows you
   * to manipulate configurations depending on the capability or spec.
   * @param {object} config wdio configuration object
   * @param {Array.<Object>} capabilities list of capabilities details
   * @param {Array.<String>} specs List of spec file paths that are to be run
   * @param {string} cid worker id (e.g. 0-0)
   */
  // beforeSession: async function (config, capabilities, specs, cid) {
  // },
  /**
   * Gets executed before test execution begins. At this point you can access to all global
   * variables like `browser`. It is the perfect place to define custom commands.
   * @param {Array.<Object>} capabilities list of capabilities details
   * @param {Array.<String>} specs        List of spec file paths that are to be run
   * @param {object}         browser      instance of created browser/device session
   */
  before: async function (capabilities, specs) {
    // must be run per wdio instance to have the correct test entity IDs
    // the setUp itself should only add entities the first time it's called
    // which happens before any e2e test is run via a wdio.conf.ts hook.
    await GlobalSetup.setUp();
  },
  /**
   * Runs before a WebdriverIO command gets executed.
   * @param {string} commandName hook command name
   * @param {Array} args arguments that command would receive
   */
  // beforeCommand: function (commandName, args) {
  // },
  /**
   * Hook that gets executed before the suite starts
   * @param {object} suite suite details
   */
  // beforeSuite: function (suite) {
  // },
  /**
   * Function to be executed before a test (in Mocha/Jasmine) starts.
   */
  // beforeTest: function (test, context) {
  // },
  /**
   * Hook that gets executed _before_ a hook within the suite starts (e.g. runs before calling
   * beforeEach in Mocha)
   */
  // beforeHook: function (test, context, hookName) {
  // },
  /**
   * Hook that gets executed _after_ a hook within the suite starts (e.g. runs after calling
   * afterEach in Mocha)
   */
  // afterHook: function (test, context, { error, result, duration, passed, retries }, hookName) {
  // },
  /**
   * Function to be executed after a test (in Mocha/Jasmine only)
   * @param {object}  test             test object
   * @param {object}  context          scope object the test was executed with
   * @param {Error}   result.error     error object in case the test fails, otherwise `undefined`
   * @param {*}       result.result    return object of test function
   * @param {number}  result.duration  duration of test
   * @param {boolean} result.passed    true if test has passed, otherwise false
   * @param {object}  result.retries   information about spec related retries, e.g. `{ attempts: 0, limit: 0 }`
   */
  // afterTest: function(test, context, { error, result, duration, passed, retries }) {
  // },


  /**
   * Hook that gets executed after the suite has ended
   * @param {object} suite suite details
   */
  // afterSuite: function (suite) {
  // },
  /**
   * Runs after a WebdriverIO command gets executed
   * @param {string} commandName hook command name
   * @param {Array} args arguments that command would receive
   * @param {number} result 0 - command success, 1 - command error
   * @param {object} error error object if any
   */
  // afterCommand: function (commandName, args, result, error) {
  // },
  /**
   * Gets executed after all tests are done. You still have access to all global variables from
   * the test.
   * @param {number} result 0 - test pass, 1 - test fail
   * @param {Array.<Object>} capabilities list of capabilities details
   * @param {Array.<String>} specs List of spec file paths that ran
   */
  // after: function (result, capabilities, specs) {
  // },
  /**
   * Gets executed right after terminating the webdriver session.
   * @param {object} config wdio configuration object
   * @param {Array.<Object>} capabilities list of capabilities details
   * @param {Array.<String>} specs List of spec file paths that ran
   */
  // afterSession: function (config, capabilities, specs) {
  // },
  /**
   * Gets executed after all workers got shut down and the process is about to exit. An error
   * thrown in the onComplete hook will result in the test run failing.
   * @param {object} exitCode 0 - success, 1 - fail
   * @param {object} config wdio configuration object
   * @param {Array.<Object>} capabilities list of capabilities details
   * @param {<Object>} results object containing test results
   */
  // onComplete: function(exitCode, config, capabilities, results) {
  // },
  /**
  * Gets executed when a refresh happens.
  * @param {string} oldSessionId session ID of the old session
  * @param {string} newSessionId session ID of the new session
  */
  // onReload: function(oldSessionId, newSessionId) {
  // }
}