class BlockFormMessagesTest

class BlockFormMessagesTest extends WebDriverTestBase {
  use ContextualLinkClickTrait;
  
  /**
   * {@inheritdoc}
   */
  protected static $modules = [
    'layout_builder',
    'block',
    'node',
    'contextual',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'starterkit_theme';
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    $this->createContentType([
      'type' => 'bundle_with_section_field',
    ]);
    LayoutBuilderEntityViewDisplay::load('node.bundle_with_section_field.default')->enableLayoutBuilder()
      ->setOverridable()
      ->save();
    $this->createNode([
      'type' => 'bundle_with_section_field',
    ]);
  }
  
  /**
   * Tests that validation messages are shown on the block form.
   */
  public function testValidationMessage() {
    // @todo Work out why this fixes random fails in this test.
    //   https://www.drupal.org/project/drupal/issues/3055982
    $this->getSession()
      ->resizeWindow(800, 1000);
    $assert_session = $this->assertSession();
    $page = $this->getSession()
      ->getPage();
    $this->drupalLogin($this->drupalCreateUser([
      'access contextual links',
      'configure any layout',
    ]));
    $this->drupalGet('node/1/layout');
    $page->findLink('Add block')
      ->click();
    $this->assertNotEmpty($assert_session->waitForElementVisible('css', '#drupal-off-canvas .block-categories'));
    $page->findLink('Powered by Drupal')
      ->click();
    $this->assertNotEmpty($assert_session->waitForElementVisible('css', '#drupal-off-canvas [name="settings[label]"]'));
    $page->findField('Title')
      ->setValue('');
    $page->findButton('Add block')
      ->click();
    $this->assertMessagesDisplayed();
    $page->findField('Title')
      ->setValue('New title');
    $page->pressButton('Add block');
    $block_css_locator = '#layout-builder .block-system-powered-by-block';
    $this->assertNotEmpty($assert_session->waitForElementVisible('css', $block_css_locator));
    $assert_session->assertNoElementAfterWait('css', '#drupal-off-canvas');
    $assert_session->assertWaitOnAjaxRequest();
    $this->drupalGet($this->getUrl());
    $page->findButton('Save layout')
      ->click();
    $this->assertNotEmpty($assert_session->waitForElement('css', 'div:contains("The layout override has been saved")'));
    // Ensure that message are displayed when configuring an existing block.
    $this->drupalGet('node/1/layout');
    $assert_session->assertWaitOnAjaxRequest();
    $this->clickContextualLink($block_css_locator, 'Configure', TRUE);
    $this->assertNotEmpty($assert_session->waitForElementVisible('css', '#drupal-off-canvas [name="settings[label]"]'));
    $page->findField('Title')
      ->setValue('');
    $page->findButton('Update')
      ->click();
    $this->assertMessagesDisplayed();
  }
  
  /**
   * Asserts that the validation messages are shown correctly.
   *
   * @internal
   */
  protected function assertMessagesDisplayed() : void {
    $assert_session = $this->assertSession();
    $page = $this->getSession()
      ->getPage();
    $messages_locator = '#drupal-off-canvas .messages--error';
    $assert_session->assertWaitOnAjaxRequest();
    $this->assertNotEmpty($assert_session->waitForElement('css', $messages_locator));
    $assert_session->elementTextContains('css', $messages_locator, 'Title field is required.');
    /** @var \Behat\Mink\Element\NodeElement[] $top_form_elements */
    $top_form_elements = $page->findAll('css', '#drupal-off-canvas form > *');
    // Ensure the messages are the first top level element of the form.
    $this->assertStringContainsStringIgnoringCase('Title field is required.', $top_form_elements[0]->getText());
    $this->assertGreaterThan(4, count($top_form_elements));
  }

}