class ToolbarHookToolbarTest

class ToolbarHookToolbarTest extends BrowserTestBase {
  
  /**
   * A user with permission to access the administrative toolbar.
   *
   * @var \Drupal\user\UserInterface
   */
  protected $adminUser;
  
  /**
   * Modules to enable.
   *
   * @var array
   */
  protected static $modules = [
    'toolbar',
    'toolbar_test',
    'test_page_test',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'stark';
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    // Create an administrative user and log it in.
    $this->adminUser = $this->drupalCreateUser([
      'access toolbar',
    ]);
    $this->drupalLogin($this->adminUser);
  }
  
  /**
   * Tests for a tab and tray provided by a module implementing hook_toolbar().
   */
  public function testHookToolbar() {
    $this->drupalGet('test-page');
    $this->assertSession()
      ->statusCodeEquals(200);
    // Assert that the toolbar is present in the HTML.
    $this->assertSession()
      ->responseContains('id="toolbar-administration"');
    // Assert that the tab registered by toolbar_test is present.
    $this->assertSession()
      ->responseContains('id="toolbar-tab-testing"');
    // Assert that the tab item descriptions are present.
    $this->assertSession()
      ->responseContains('title="Test tab"');
    // Assert that the tray registered by toolbar_test is present.
    $this->assertSession()
      ->responseContains('id="toolbar-tray-testing"');
    // Assert that tray item descriptions are present.
    $this->assertSession()
      ->responseContains('title="Test link 1 title"');
  }

}