LibraryCachingTest.php

<?php

namespace Drupal\Tests\views_ui\FunctionalJavascript;

use Drupal\FunctionalJavascriptTests\WebDriverTestBase;

/**
 * Tests the JavaScript library caching on consecutive requests.
 *
 * @group views_ui
 */
class LibraryCachingTest extends WebDriverTestBase {
    
    /**
     * {@inheritdoc}
     */
    public static $modules = [
        'node',
        'views',
        'views_ui',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Tests if the Views UI dialogs open on consecutive requests.
     */
    public function testConsecutiveDialogRequests() {
        $admin_user = $this->drupalCreateUser([
            'administer site configuration',
            'administer views',
            'administer nodes',
            'access content overview',
        ]);
        // Disable automatic live preview to make the sequence of calls clearer.
        \Drupal::configFactory()->getEditable('views.settings')
            ->set('ui.always_live_preview', FALSE)
            ->save();
        $this->drupalLogin($admin_user);
        $this->drupalGet('admin/structure/views/view/content');
        $page = $this->getSession()
            ->getPage();
        // Use the 'Add' link for fields to open a dialog. This will load the proper
        // dialog libraries.
        $add_link = $page->findById('views-add-field');
        $this->assertTrue($add_link->isVisible(), 'Add fields button found.');
        $add_link->click();
        $this->assertJsCondition("jQuery('.ui-dialog-titlebar').length > 0");
        // Close the dialog and open it again. No no libraries will be loaded, but a
        // cache entry will be made for not loading any libraries.
        $page->pressButton('Close');
        $add_link->click();
        $this->assertJsCondition("jQuery('.ui-dialog-titlebar').length > 0");
        $page->pressButton('Close');
        // Reload the page.
        $this->drupalGet('admin/structure/views/view/content');
        $page = $this->getSession()
            ->getPage();
        // Now use the 'Update preview' button to load libraries.
        $preview = $page->findById('preview-submit');
        // The first click will load all the libraries.
        $preview->click();
        $this->assertJsCondition("jQuery('.ajax-progress').length === 0");
        // The second click will not load any new libraries.
        $preview->click();
        $this->assertJsCondition("jQuery('.ajax-progress').length === 0");
        // Check to see if the dialogs still open.
        $add_link = $page->findById('views-add-field');
        $add_link->click();
        $this->assertJsCondition("jQuery('.ui-dialog-titlebar').length > 0");
        $page->pressButton('Close');
    }

}