function RendererRecursionTest::testRenderRecursionWithNestedRenderRoot

Tests that renderRoot() may not be called recursively.

@legacy-covers ::renderRoot @legacy-covers ::render @legacy-covers ::doRender

File

core/tests/Drupal/Tests/Core/Render/RendererRecursionTest.php, line 44

Class

RendererRecursionTest

Tests Drupal\Core\Render\Renderer.

Namespace

Code

public function testRenderRecursionWithNestedRenderRoot() : void {
  [$parent_markup, $complex_child_template] = $this->setUpRenderRecursionComplexElements();
  $renderer = $this->renderer;
  $this->setUpRequest();
  $complex_child = $complex_child_template;
  $callable = function () use ($renderer, $complex_child) : void {
    $this->expectException(\LogicException::class);
    $renderer->renderRoot($complex_child);
  };
  $page = [
    'content' => [
      '#pre_render' => [
        $callable,
      ],
      '#suffix' => $parent_markup,
    ],
  ];
  $renderer->renderRoot($page);
}