AreaTitleTest.php

<?php

namespace Drupal\Tests\views\Kernel\Handler;

use Drupal\Tests\views\Kernel\ViewsKernelTestBase;
use Drupal\views\Views;

/**
 * Tests the title area handler.
 *
 * @group views
 * @see \Drupal\views\Plugin\views\area\Title
 */
class AreaTitleTest extends ViewsKernelTestBase {
    
    /**
     * Views used by this test.
     *
     * @var array
     */
    public static $testViews = [
        'test_area_title',
    ];
    
    /**
     * Tests the title area handler.
     */
    public function testTitleText() {
        $view = Views::getView('test_area_title');
        $view->setDisplay('default');
        $this->executeView($view);
        $view->render();
        $this->assertEmpty($view->getTitle(), 'The title area does not override the title if the view is not empty.');
        $view->destroy();
        $view->setDisplay('default');
        $this->executeView($view);
        $view->result = [];
        $view->render();
        $this->assertEquals('test_title_empty', $view->getTitle(), 'The title area should override the title if the result is empty.');
        $view->destroy();
        $view->setDisplay('page_1');
        $this->executeView($view);
        $view->render();
        $this->assertEquals('test_title_header', $view->getTitle(), 'The title area on the header should override the title if the result is not empty.');
        $view->destroy();
        $view->setDisplay('page_1');
        $this->executeView($view);
        $view->result = [];
        $view->render();
        $this->assertEquals('test_title_empty', $view->getTitle(), 'The title area should override the title if the result is empty.');
        $view->destroy();
    }

}