function RendererBubblingTest::testOverWriteCacheKeys

Tests that an element's cache keys cannot be changed during its rendering.

File

core/tests/Drupal/Tests/Core/Render/RendererBubblingTest.php, line 532

Class

RendererBubblingTest

@coversDefaultClass \Drupal\Core\Render\Renderer[[api-linebreak]] @group Render

Namespace

Code

public function testOverWriteCacheKeys() : void {
  $this->setUpRequest();
  $this->setUpMemoryCache();
  // Ensure a logic exception
  $data = [
    '#cache' => [
      'keys' => [
        'llama',
        'bar',
      ],
    ],
    '#pre_render' => [
      __NAMESPACE__ . '\\BubblingTest::bubblingCacheOverwritePrerender',
    ],
  ];
  $this->expectException(\LogicException::class);
  $this->expectExceptionMessage('Cache keys may not be changed after initial setup. Use the contexts property instead to bubble additional metadata.');
  $this->renderer
    ->renderRoot($data);
}