DialogPositionTest.php

<?php

namespace Drupal\FunctionalJavascriptTests\Dialog;

use Drupal\FunctionalJavascriptTests\WebDriverTestBase;

/**
 * Tests the JavaScript functionality of the dialog position.
 *
 * @group dialog
 */
class DialogPositionTest extends WebDriverTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'block',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Tests if the dialog UI works properly with block layout page.
     */
    public function testDialogOpenAndClose() {
        $admin_user = $this->drupalCreateUser([
            'administer blocks',
        ]);
        $this->drupalLogin($admin_user);
        $this->drupalGet('admin/structure/block');
        $session = $this->getSession();
        $assert_session = $this->assertSession();
        $page = $session->getPage();
        // Open the dialog using the place block link.
        $placeBlockLink = $page->findLink('Place block');
        $this->assertTrue($placeBlockLink->isVisible(), 'Place block button exists.');
        $placeBlockLink->click();
        $assert_session->assertWaitOnAjaxRequest();
        $dialog = $page->find('css', '.ui-dialog');
        $this->assertTrue($dialog->isVisible(), 'Dialog is opened after clicking the Place block button.');
        // Close the dialog again.
        $closeButton = $page->find('css', '.ui-dialog-titlebar-close');
        $closeButton->click();
        $assert_session->assertWaitOnAjaxRequest();
        $dialog = $page->find('css', '.ui-dialog');
        $this->assertNull($dialog, 'Dialog is closed after clicking the close button.');
        // Resize the window. The test should pass after waiting for JavaScript to
        // finish as no Javascript errors should have been triggered. If there were
        // javascript errors the test will fail on that.
        $session->resizeWindow(625, 625);
        $assert_session->assertWaitOnAjaxRequest();
    }

}