public function RendererTest::testRenderCacheProperties in Drupal 8

Same name and namespace in other branches

1. 9 core/tests/Drupal/Tests/Core/Render/RendererTest.php \Drupal\Tests\Core\Render\RendererTest::testRenderCacheProperties()

Tests that #cache_properties are properly handled.

@covers ::render @covers ::doRender @covers \Drupal\Core\Render\RenderCache::get @covers \Drupal\Core\Render\RenderCache::set @covers \Drupal\Core\Render\RenderCache::createCacheID @covers \Drupal\Core\Render\RenderCache::getCacheableRenderArray

@dataProvider providerTestRenderCacheProperties

Parameters

array $expected_results: An associative array of expected results keyed by property name.

File

core/tests/Drupal/Tests/Core/Render/RendererTest.php, line 899

Contains \Drupal\Tests\Core\Render\RendererTest.

Class

RendererTest

@coversDefaultClass \Drupal\Core\Render\Renderer @group Render

Namespace

Drupal\Tests\Core\Render

Code

public function testRenderCacheProperties(array $expected_results) {
  $this
    ->setUpRequest();
  $this
    ->setupMemoryCache();
  $element = $original = [
    '#cache' => [
      'keys' => [
        'render_cache_test',
      ],
    ],
    // Collect expected property names.
    '#cache_properties' => array_keys(array_filter($expected_results)),
    'child1' => [
      '#markup' => Markup::create('1'),
    ],
    'child2' => [
      '#markup' => Markup::create('2'),
    ],
    // Mark the value as safe.
    '#custom_property' => Markup::create('custom_value'),
    '#custom_property_array' => [
      'custom value',
    ],
  ];
  $this->renderer
    ->renderRoot($element);
  $cache = $this->cacheFactory
    ->get('render');
  $data = $cache
    ->get('render_cache_test:en:stark')->data;

  // Check that parent markup is ignored when caching children's markup.
  $this
    ->assertEquals($data['#markup'] === '', (bool) Element::children($data));

  // Check that the element properties are cached as specified.
  foreach ($expected_results as $property => $expected) {
    $cached = !empty($data[$property]);
    $this
      ->assertEquals($cached, (bool) $expected);

    // Check that only the #markup key is preserved for children.
    if ($cached) {
      $this
        ->assertEquals($data[$property], $original[$property]);
    }
  }

  // #custom_property_array can not be a safe_cache_property.
  $safe_cache_properties = array_diff(Element::properties(array_filter($expected_results)), [
    '#custom_property_array',
  ]);
  foreach ($safe_cache_properties as $cache_property) {
    $this
      ->assertInstanceOf(MarkupInterface::class, $data[$cache_property]);
  }
}