getTestClasses example

/** * @covers ::getTestClasses */
  public function testGetTestClasses() {
    $this->setupVfsWithTestClasses();
    $extensions = [
      'test_module' => new Extension('vfs://drupal', 'module', 'modules/test_module/test_module.info.yml'),
    ];
    $test_discovery = $this->getTestDiscoveryMock('vfs://drupal', $extensions);

    $result = $test_discovery->getTestClasses();
    $this->assertCount(3, $result);
    $this->assertEquals([
      'example' => [
        'Drupal\Tests\test_module\Functional\FunctionalExampleTest' => [
          'name' => 'Drupal\Tests\test_module\Functional\FunctionalExampleTest',
          'description' => 'Test description',
          'group' => 'example',
          'groups' => ['example'],
          'type' => 'PHPUnit-Functional',
        ],
      ],