QueryTest.php

<?php

namespace Drupal\Tests\views\Kernel\Plugin;

use Drupal\views\Views;
use Drupal\Tests\views\Kernel\ViewsKernelTestBase;
use Drupal\views_test_data\Plugin\views\query\QueryTest as QueryTestPlugin;

/**
 * Tests query plugins.
 *
 * @group views
 */
class QueryTest extends ViewsKernelTestBase {
    
    /**
     * Views used by this test.
     *
     * @var array
     */
    public static $testViews = [
        'test_view',
    ];
    protected function viewsData() {
        $data = parent::viewsData();
        $data['views_test_data']['table']['base']['query_id'] = 'query_test';
        return $data;
    }
    
    /**
     * Tests query plugins.
     */
    public function testQuery() {
        $this->_testInitQuery();
        $this->_testQueryExecute();
        $this->queryMethodsTests();
    }
    
    /**
     * Tests the ViewExecutable::initQuery method.
     */
    public function _testInitQuery() {
        $view = Views::getView('test_view');
        $view->setDisplay();
        $view->initQuery();
        $this->assertInstanceOf(QueryTestPlugin::class, $view->query);
    }
    public function _testQueryExecute() {
        $view = Views::getView('test_view');
        $view->setDisplay();
        $view->initQuery();
        $view->query
            ->setAllItems($this->dataSet());
        $this->executeView($view);
        $this->assertNotEmpty($view->result, 'Make sure the view result got filled');
    }
    
    /**
     * Tests methods provided by the QueryPluginBase.
     *
     * @see \Drupal\views\Plugin\views\query\QueryPluginBase
     */
    protected function queryMethodsTests() {
        $view = Views::getView('test_view');
        $view->setDisplay();
        $view->initQuery();
        $this->assertNull($view->query
            ->getLimit(), 'Default to an empty limit.');
        $rand_number = rand(5, 10);
        $view->query
            ->setLimit($rand_number);
        $this->assertEquals($rand_number, $view->query
            ->getLimit(), 'set_limit adapts the amount of items.');
    }

}