CodeceptJS configuration is set in codecept.json file.

After running codeceptjs init it should be saved in test root.

Here is an overview of available options with their defaults:

  • tests: "./*_test.js" - pattern to locate tests
  • grep: - patern to filter tests by name
  • include: {} - actors and page objects to be registered in DI container and included in tests. Accepts objects and module require paths
  • timeout: 10000 - default tests timeout
  • output: "./output" - where to store failure screenshots, etc
  • helpers: {} - list of enabled helpers
  • mocha: {} - mocha options, reporters can be configured here
  • multiple: {} - multiple options, see Multiple Execution
  • bootstrap: "./bootstrap.js" - an option to run code before tests are run. See Hooks).
  • bootstrapAll: "./bootstrap.js" - an option to run code before all test suites are run when using the run-multiple mode. See Hooks).
  • teardown: - an option to run code after all test suites are run when using the run-multiple mode. See Hooks.
  • teardownAll: - an option to run code after tests are run. See Hooks.
  • noGlobals: false - disable registering global variables like Actor, Helper, pause, within, DataTable
  • hooks: - include custom listeners to plug into execution workflow. See Custom Hooks
  • translation: - locale to be used to print s teps output, as well as used in source code.

Dynamic Configuration

By default codecept.json is used for configuration. You can override its values in runtime by using --override or -o option in command line, passing valid JSON as a value:

codeceptjs run -o '{ "helpers": {"WebDriverIO": {"browser": "firefox"}}}'

You can also switch to JS configuration format for more dynamic options. Create codecept.conf.js file and make it export config property.

See the config example:

exports.config = {
  helpers: {
    WebDriverIO: {
      // load variables from the environment and provide defaults
      url: process.env.CODECEPT_URL || 'http://localhost:3000',

      user: process.env.CLOUDSERVICE_USER,
      key: process.env.CLOUDSERVICE_KEY,

      coloredLogs: true,
      waitForTimeout: 10000

  // don't build monolithic configs
  mocha: require('./mocha.conf.js') || {},
  include: {
    I: './src/steps_file.js',
    loginPage: './src/pages/login_page',
    dashboardPage: new DashboardPage()

  // here goes config as it was in codecept.json
  // ....

(Don't copy-paste this config, it's just demo)

If you prefer to store your configuration files in a different location, or with a different name, you can do that with --config or `-c:

codeceptjs run --config=./path/to/my/config.json


Using values from process.profile you can change the config dynamically. It provides value of --profile option passed to runner. Use its value to change config value on the fly.

For instance, with the config above we can change browser value using profile option

codeceptjs run --profile firefox
exports.config = {
  helpers: {
    WebDriverIO: {
      url: 'http://localhost:3000',
      // load value from `profile`
      browser: process.profile || 'firefox'


© 2015 DavertMik <davert@codegyre.com> (http://codegyre.com)
Licensed under the MIT License.