function LayoutTest::testRenderLayout

Tests rendering a layout.

@dataProvider renderLayoutData

File

core/modules/layout_discovery/tests/src/Kernel/LayoutTest.php, line 55

Class

LayoutTest

Tests Layout functionality.

Namespace

Code

public function testRenderLayout($layout_id, $config, $regions, array $html) : void {
    $layout = $this->layoutPluginManager
        ->createInstance($layout_id, $config);
    $built['layout'] = $layout->build($regions);
    $built['layout']['#prefix'] = 'Test prefix' . "\n";
    $built['layout']['#suffix'] = 'Test suffix' . "\n";
    // Assume each layout is contained by a form, in order to ensure the
    // building of the layout does not interfere with form processing.
    $form_state = new FormState();
    $form_builder = $this->container
        ->get('form_builder');
    $form_builder->prepareForm('the_form_id', $built, $form_state);
    $form_builder->processForm('the_form_id', $built, $form_state);
    $this->render($built);
    // Add in the wrapping form elements and prefix/suffix.
    array_unshift($html, 'Test prefix');
    array_unshift($html, '<form data-drupal-selector="the-form-id" action="/" method="post" id="the-form-id" accept-charset="UTF-8">');
    // Retrieve the build ID from the rendered HTML since the string is random.
    $build_id_input = $this->cssSelect('input[name="form_build_id"]')[0]
        ->asXML();
    $form_id_input = '<input data-drupal-selector="edit-the-form-id" type="hidden" name="form_id" value="the_form_id"/>';
    $html[] = 'Test suffix';
    $html[] = $build_id_input . "\n" . $form_id_input . "\n" . '</form>';
    // Match the HTML to the full form element.
    $this->assertSame(implode("\n", $html), $this->cssSelect('#the-form-id')[0]
        ->asXML());
}