Provides a render array response that has a large number of cache contexts.

Return value

array Render array.

1 string reference to 'TestResponseController::testCacheContextsHeaders'

http_response_debug_cacheability_headers_test.routing.yml in core/modules/system/tests/modules/http_response_debug_cacheability_headers_test/http_response_debug_cacheability_headers_test.routing.yml

core/modules/system/tests/modules/http_response_debug_cacheability_headers_test/http_response_debug_cacheability_headers_test.routing.yml

File

core/modules/system/tests/modules/http_response_debug_cacheability_headers_test/src/Controller/TestResponseController.php, line 31

Class

TestResponseController

Provides responses for testing debug cacheability headers in HTTP responses.

Namespace

Drupal\http_response_debug_cacheability_headers_test\Controller

Code

public function testCacheContextsHeaders() : array {
  // Create multiple cache contexts that add up to more than 8k bytes.
  for ($i = 0; $i < 700; $i++) {
    $contexts[] = 'url.query_args:' . str_pad("{$i}", 4, '0', STR_PAD_LEFT);
  }
  $contexts_length = strlen(implode(' ', $contexts));
  return [
    '#markup' => 'This is a test of a list of cache contexts debug headers that exceed ' . $contexts_length . ' bytes in total.',
    '#cache' => [
      'contexts' => $contexts,
    ],
  ];
}

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