MINK_DRIVER_ARGS does not support associative arrays

I totally agree. None of those configurations uses stdclass objects.

Here is a test

Here is a proper failing and passing test.

The docblock for minkDefaultDriverArgs already states that this should be an array, so this gets the actual data in line with the API.

  /*
   * Mink default driver params.
   *
   * If it's an array its contents are used as constructor params when default
   * Mink driver class is instantiated.
   *
   * Can be overridden using the environment variable MINK_DRIVER_ARGS. In this
   * case that variable should be a JSON array, for example:
   * '["firefox", null, "http://localhost:4444/wd/hub"]'.
   *
   *
   * @var array
   */
  protected $minkDefaultDriverArgs;

Looks good.

Unrelated fail

I guess this should be marked as fixed now :)