function DisplayTest::testOutputIsEmpty

Tests the outputIsEmpty method on the display.

File

core/modules/views/tests/src/Functional/Plugin/DisplayTest.php, line 397

Class

DisplayTest

Tests the basic display plugin.

Namespace

Code

public function testOutputIsEmpty() : void {
    $view = Views::getView('test_display_empty');
    $this->executeView($view);
    $this->assertNotEmpty($view->result);
    $this->assertFalse($view->display_handler
        ->outputIsEmpty(), 'Ensure the view output is marked as not empty.');
    $view->destroy();
    // Add a filter, so the view result is empty.
    $view->setDisplay('default');
    $item = [
        'table' => 'views_test_data',
        'field' => 'id',
        'id' => 'id',
        'value' => [
            'value' => 7297,
        ],
    ];
    $view->setHandler('default', 'filter', 'id', $item);
    $this->executeView($view);
    $this->assertEmpty($view->result, 'Ensure the result of the view is empty.');
    $this->assertFalse($view->display_handler
        ->outputIsEmpty(), 'Ensure the view output is marked as not empty, because the empty text still appears.');
    $view->destroy();
    // Remove the empty area, but mark the header area to still appear.
    $view->removeHandler('default', 'empty', 'area');
    $item = $view->getHandler('default', 'header', 'area');
    $item['empty'] = TRUE;
    $view->setHandler('default', 'header', 'area', $item);
    $this->executeView($view);
    $this->assertEmpty($view->result, 'Ensure the result of the view is empty.');
    $this->assertFalse($view->display_handler
        ->outputIsEmpty(), 'Ensure the view output is marked as not empty, because the header text still appears.');
    $view->destroy();
    // Hide the header on empty results.
    $item = $view->getHandler('default', 'header', 'area');
    $item['empty'] = FALSE;
    $view->setHandler('default', 'header', 'area', $item);
    $this->executeView($view);
    $this->assertEmpty($view->result, 'Ensure the result of the view is empty.');
    $this->assertTrue($view->display_handler
        ->outputIsEmpty(), 'Ensure the view output is marked as empty.');
}