ArgumentNullTest.php

<?php

namespace Drupal\Tests\views\Kernel\Handler;

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

/**
 * Tests the core Drupal\views\Plugin\views\argument\NullArgument handler.
 *
 * @group views
 */
class ArgumentNullTest extends ViewsKernelTestBase {
    
    /**
     * Views used by this test.
     *
     * @var array
     */
    public static $testViews = [
        'test_view',
    ];
    public function viewsData() {
        $data = parent::viewsData();
        $data['views_test_data']['id']['argument']['id'] = 'null';
        return $data;
    }
    public function testAreaText() {
        // Test validation
        $view = Views::getView('test_view');
        $view->setDisplay();
        // Add a null argument.
        $view->displayHandlers
            ->get('default')
            ->overrideOption('arguments', [
            'null' => [
                'id' => 'null',
                'table' => 'views',
                'field' => 'null',
            ],
        ]);
        $this->executeView($view);
        // Make sure that the argument is not validated yet.
        unset($view->argument['null']->argument_validated);
        $this->assertTrue($view->argument['null']
            ->validateArgument(26));
        // test must_not_be option.
        unset($view->argument['null']->argument_validated);
        $view->argument['null']->options['must_not_be'] = TRUE;
        $this->assertFalse($view->argument['null']
            ->validateArgument(26), 'must_not_be returns FALSE, if there is an argument');
        unset($view->argument['null']->argument_validated);
        $this->assertTrue($view->argument['null']
            ->validateArgument(NULL), 'must_not_be returns TRUE, if there is no argument');
        // Test execution.
        $view->destroy();
        $view->setDisplay();
        // Add an argument, which has null as handler.
        $view->displayHandlers
            ->get('default')
            ->overrideOption('arguments', [
            'id' => [
                'id' => 'id',
                'table' => 'views_test_data',
                'field' => 'id',
            ],
        ]);
        $this->executeView($view, [
            26,
        ]);
        // The argument should be ignored, so every result should return.
        $this->assertCount(5, $view->result);
    }

}