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() : void {
        $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');
        $this->clickContextualLink($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));
    }

}