class SqlQueryTest

class SqlQueryTest extends ViewsKernelTestBase {
    
    /**
     * Views used by this test.
     *
     * @var array
     */
    public static $testViews = [
        'test_view',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected function viewsData() {
        $data = parent::viewsData();
        $data['views_test_data']['table']['base']['access query tag'] = 'test_tag';
        $data['views_test_data']['table']['base']['query metadata'] = [
            'key1' => 'test_metadata',
            'key2' => 'test_metadata2',
        ];
        return $data;
    }
    
    /**
     * Tests adding some metadata/tags to the views query.
     */
    public function testExecuteMetadata() : void {
        $view = Views::getView('test_view');
        $view->setDisplay();
        $view->initQuery();
        $view->execute();
        
        /** @var \Drupal\Core\Database\Query\Select $query */
        $main_query = $view->build_info['query'];
        
        /** @var \Drupal\Core\Database\Query\Select $count_query */
        $count_query = $view->build_info['count_query'];
        foreach ([
            $main_query,
            $count_query,
        ] as $query) {
            // Check query access tags.
            $this->assertTrue($query->hasTag('test_tag'));
            // Check metadata.
            $this->assertSame('test_metadata', $query->getMetaData('key1'));
            $this->assertSame('test_metadata2', $query->getMetaData('key2'));
        }
        $query_options = $view->display_handler
            ->getOption('query');
        $query_options['options']['disable_sql_rewrite'] = TRUE;
        $view->display_handler
            ->setOption('query', $query_options);
        $view->save();
        $view->destroy();
        $view = Views::getView('test_view');
        $view->setDisplay();
        $view->initQuery();
        $view->execute();
        
        /** @var \Drupal\Core\Database\Query\Select $query */
        $main_query = $view->build_info['query'];
        
        /** @var \Drupal\Core\Database\Query\Select $count_query */
        $count_query = $view->build_info['count_query'];
        foreach ([
            $main_query,
            $count_query,
        ] as $query) {
            // Check query access tags.
            $this->assertFalse($query->hasTag('test_tag'));
            // Check metadata.
            $this->assertNull($query->getMetaData('key1'));
            $this->assertNull($query->getMetaData('key2'));
        }
    }
    
    /**
     * Tests the method \Drupal\views\Plugin\views\query\Sql::getConnection().
     *
     * This needs to be a kernel test because the tested method uses the method
     * \Drupal\Core\Database\Database::getConnection() which is a 'final' method
     * and therefore cannot be mocked.
     *
     * @covers \Drupal\views\Plugin\views\query\Sql::getConnection
     */
    public function testGetConnection() : void {
        $view = Views::getView('test_view');
        $view->setDisplay();
        // Add 3 database connections for the different options that the method
        // getConnection() supports.
        $connection_info = Database::getConnectionInfo('default');
        Database::addConnectionInfo('default', 'replica', $connection_info['default']);
        Database::addConnectionInfo('core_fake', 'default', $connection_info['default']);
        Database::addConnectionInfo('core_fake', 'replica', $connection_info['default']);
        // Test the database connection with no special options set.
        $this->assertSame('default', $view->getQuery()
            ->getConnection()
            ->getKey());
        $this->assertSame('default', $view->getQuery()
            ->getConnection()
            ->getTarget());
        // Test the database connection with the option 'replica' set to TRUE;
        $view->getQuery()->options['replica'] = TRUE;
        $this->assertSame('default', $view->getQuery()
            ->getConnection()
            ->getKey());
        $this->assertSame('replica', $view->getQuery()
            ->getConnection()
            ->getTarget());
        // Test the database connection with the view 'base_database' set.
        $view->getQuery()->options['replica'] = FALSE;
        $view->base_database = 'core_fake';
        $this->assertSame('core_fake', $view->getQuery()
            ->getConnection()
            ->getKey());
        $this->assertSame('default', $view->getQuery()
            ->getConnection()
            ->getTarget());
        // Test the database connection with the view 'base_database' set and the
        // option 'replica' set to TRUE.
        $view->getQuery()->options['replica'] = TRUE;
        $this->assertSame('core_fake', $view->getQuery()
            ->getConnection()
            ->getKey());
        $this->assertSame('replica', $view->getQuery()
            ->getConnection()
            ->getTarget());
        // Clean up the created database connections.
        Database::closeConnection('replica', 'default');
        Database::closeConnection('default', 'core_fake');
        Database::closeConnection('replica', 'core_fake');
    }

}