/**
* @covers ::buildResponse
*/
public function testBuildResponse()
{
/** @var \Drupal\views\Entity\View $view */
$view = View::load('test_serializer_display_entity');
$display =& $view->getDisplay('rest_export_1');
$display['display_options']['defaults']['style'] = FALSE;
$display['display_options']['style']['type'] = 'serializer';
$display['display_options']['style']['options']['formats'] = ['json', 'xml'];
$view->save();
// No custom header should be set yet.
$response = RestExport::buildResponse('test_serializer_display_entity', 'rest_export_1', []);
$this->assertFalse($response->headers->get('Custom-Header'));
// Clear render cache.
/** @var \Drupal\Core\Cache\MemoryBackend $render_cache */
$render_cache = $this->container->get('cache_factory')->get('render');
$render_cache->deleteAll();
// A custom header should now be added.
// @see rest_test_views_views_post_execute()
$header = $this->randomString();
$this->container->get('state')->set('rest_test_views_set_header', $header);
$response = RestExport::buildResponse('test_serializer_display_entity', 'rest_export_1', []);
$this->assertEquals($header, $response->headers->get('Custom-Header'));
}
