--- /dev/null
+<?php
+
+namespace Drupal\Tests\views\Kernel\Handler;
+
+use Drupal\Tests\views\Kernel\ViewsKernelTestBase;
+use Drupal\views\Views;
+
+/**
+ * Tests the core views_handler_area_text handler.
+ *
+ * @group views
+ * @see \Drupal\views\Plugin\views\area\Text
+ */
+class AreaTextTest extends ViewsKernelTestBase {
+
+ public static $modules = ['system', 'user', 'filter'];
+
+ /**
+ * Views used by this test.
+ *
+ * @var array
+ */
+ public static $testViews = ['test_view'];
+
+ protected function setUp($import_test_views = TRUE) {
+ parent::setUp();
+
+ $this->installConfig(['system', 'filter']);
+ $this->installEntitySchema('user');
+ }
+
+ public function testAreaText() {
+ /** @var \Drupal\Core\Render\RendererInterface $renderer */
+ $renderer = $this->container->get('renderer');
+ $view = Views::getView('test_view');
+ $view->setDisplay();
+
+ // add a text header
+ $string = $this->randomMachineName();
+ $view->displayHandlers->get('default')->overrideOption('header', [
+ 'area' => [
+ 'id' => 'area',
+ 'table' => 'views',
+ 'field' => 'area',
+ 'content' => [
+ 'value' => $string,
+ ],
+ ],
+ ]);
+
+ // Execute the view.
+ $this->executeView($view);
+
+ $view->display_handler->handlers['header']['area']->options['content']['format'] = $this->randomString();
+ $build = $view->display_handler->handlers['header']['area']->render();
+ $this->assertEqual('', $renderer->renderRoot($build), 'Nonexistent format should return empty markup.');
+
+ $view->display_handler->handlers['header']['area']->options['content']['format'] = filter_default_format();
+ $build = $view->display_handler->handlers['header']['area']->render();
+ $this->assertEqual(check_markup($string), $renderer->renderRoot($build), 'Existent format should return something');
+
+ // Empty results, and it shouldn't be displayed .
+ $this->assertEqual([], $view->display_handler->handlers['header']['area']->render(TRUE), 'No result should lead to no header');
+ // Empty results, and it should be displayed.
+ $view->display_handler->handlers['header']['area']->options['empty'] = TRUE;
+ $build = $view->display_handler->handlers['header']['area']->render(TRUE);
+ $this->assertEqual(check_markup($string), $renderer->renderRoot($build), 'No result, but empty enabled lead to a full header');
+ }
+
+}