CacheableMetadataTest.php in Drupal 8

Namespace

Drupal\Tests\Core\Cache

File

core/tests/Drupal/Tests/Core/Cache/CacheableMetadataTest.php

<?php

namespace Drupal\Tests\Core\Cache;

use Drupal\Core\Cache\Cache;
use Drupal\Core\Cache\CacheableMetadata;
use Drupal\Tests\Core\Render\TestCacheableDependency;
use Drupal\Tests\UnitTestCase;
use Symfony\Component\DependencyInjection\ContainerBuilder;

/**
 * @coversDefaultClass \Drupal\Core\Cache\CacheableMetadata
 * @group Cache
 */
class CacheableMetadataTest extends UnitTestCase {

  /**
   * @covers ::merge
   * @dataProvider providerTestMerge
   *
   * This only tests at a high level, because it reuses existing logic. Detailed
   * tests exist for the existing logic:
   *
   * @see \Drupal\Tests\Core\Cache\CacheTest::testMergeTags()
   * @see \Drupal\Tests\Core\Cache\CacheTest::testMergeMaxAges()
   * @see \Drupal\Tests\Core\Cache\CacheContextsTest
   */
  public function testMerge(CacheableMetadata $a, CacheableMetadata $b, CacheableMetadata $expected) {
    $cache_contexts_manager = $this
      ->getMockBuilder('Drupal\\Core\\Cache\\Context\\CacheContextsManager')
      ->disableOriginalConstructor()
      ->getMock();
    $cache_contexts_manager
      ->method('assertValidTokens')
      ->willReturn(TRUE);
    $container = new ContainerBuilder();
    $container
      ->set('cache_contexts_manager', $cache_contexts_manager);
    \Drupal::setContainer($container);
    $this
      ->assertEquals($expected, $a
      ->merge($b));
  }

  /**
   * @covers ::addCacheableDependency
   * @dataProvider providerTestMerge
   *
   * This only tests at a high level, because it reuses existing logic. Detailed
   * tests exist for the existing logic:
   *
   * @see \Drupal\Tests\Core\Cache\CacheTest::testMergeTags()
   * @see \Drupal\Tests\Core\Cache\CacheTest::testMergeMaxAges()
   * @see \Drupal\Tests\Core\Cache\CacheContextsTest
   */
  public function testAddCacheableDependency(CacheableMetadata $a, CacheableMetadata $b, CacheableMetadata $expected) {
    $cache_contexts_manager = $this
      ->getMockBuilder('Drupal\\Core\\Cache\\Context\\CacheContextsManager')
      ->disableOriginalConstructor()
      ->getMock();
    $cache_contexts_manager
      ->method('assertValidTokens')
      ->willReturn(TRUE);
    $container = new ContainerBuilder();
    $container
      ->set('cache_contexts_manager', $cache_contexts_manager);
    \Drupal::setContainer($container);
    $this
      ->assertEquals($expected, $a
      ->addCacheableDependency($b));
  }

  /**
   * Provides test data for testMerge().
   *
   * @return array
   */
  public function providerTestMerge() {
    return [
      // All empty.
      [
        new CacheableMetadata(),
        new CacheableMetadata(),
        new CacheableMetadata(),
      ],
      // Cache contexts.
      [
        (new CacheableMetadata())
          ->setCacheContexts([
          'foo',
        ]),
        (new CacheableMetadata())
          ->setCacheContexts([
          'bar',
        ]),
        (new CacheableMetadata())
          ->setCacheContexts([
          'bar',
          'foo',
        ]),
      ],
      // Cache tags.
      [
        (new CacheableMetadata())
          ->setCacheTags([
          'foo',
        ]),
        (new CacheableMetadata())
          ->setCacheTags([
          'bar',
        ]),
        (new CacheableMetadata())
          ->setCacheTags([
          'bar',
          'foo',
        ]),
      ],
      // Cache max-ages.
      [
        (new CacheableMetadata())
          ->setCacheMaxAge(60),
        (new CacheableMetadata())
          ->setCacheMaxAge(Cache::PERMANENT),
        (new CacheableMetadata())
          ->setCacheMaxAge(60),
      ],
    ];
  }

  /**
   * This delegates to Cache::mergeTags(), so just a basic test.
   *
   * @covers ::addCacheTags
   */
  public function testAddCacheTags() {
    $metadata = new CacheableMetadata();
    $add_expected = [
      [
        [],
        [],
      ],
      [
        [
          'foo:bar',
        ],
        [
          'foo:bar',
        ],
      ],
      [
        [
          'foo:baz',
        ],
        [
          'foo:bar',
          'foo:baz',
        ],
      ],
      [
        [
          'axx:first',
          'foo:baz',
        ],
        [
          'axx:first',
          'foo:bar',
          'foo:baz',
        ],
      ],
      [
        [],
        [
          'axx:first',
          'foo:bar',
          'foo:baz',
        ],
      ],
      [
        [
          'axx:first',
        ],
        [
          'axx:first',
          'foo:bar',
          'foo:baz',
        ],
      ],
    ];
    foreach ($add_expected as $data) {
      list($add, $expected) = $data;
      $metadata
        ->addCacheTags($add);
      $this
        ->assertEquals($expected, $metadata
        ->getCacheTags());
    }
  }

  /**
   * Test valid and invalid values as max age.
   *
   * @covers ::setCacheMaxAge
   * @dataProvider providerSetCacheMaxAge
   */
  public function testSetCacheMaxAge($data, $expect_exception) {
    $metadata = new CacheableMetadata();
    if ($expect_exception) {
      $this
        ->expectException('\\InvalidArgumentException');
    }
    $metadata
      ->setCacheMaxAge($data);
    $this
      ->assertEquals($data, $metadata
      ->getCacheMaxAge());
  }

  /**
   * Data provider for testSetCacheMaxAge.
   */
  public function providerSetCacheMaxAge() {
    return [
      [
        0,
        FALSE,
      ],
      [
        'http',
        TRUE,
      ],
      [
        '0',
        TRUE,
      ],
      [
        new \stdClass(),
        TRUE,
      ],
      [
        300,
        FALSE,
      ],
      [
        [],
        TRUE,
      ],
      [
        8.0,
        TRUE,
      ],
    ];
  }

  /**
   * @covers ::createFromRenderArray
   * @dataProvider providerTestCreateFromRenderArray
   */
  public function testCreateFromRenderArray(array $render_array, CacheableMetadata $expected) {
    $this
      ->assertEquals($expected, CacheableMetadata::createFromRenderArray($render_array));
  }

  /**
   * Provides test data for createFromRenderArray().
   *
   * @return array
   */
  public function providerTestCreateFromRenderArray() {
    $data = [];
    $empty_metadata = new CacheableMetadata();
    $nonempty_metadata = new CacheableMetadata();
    $nonempty_metadata
      ->setCacheContexts([
      'qux',
    ])
      ->setCacheTags([
      'foo:bar',
    ]);
    $empty_render_array = [];
    $nonempty_render_array = [
      '#cache' => [
        'contexts' => [
          'qux',
        ],
        'tags' => [
          'foo:bar',
        ],
        'max-age' => Cache::PERMANENT,
      ],
    ];
    $data[] = [
      $empty_render_array,
      $empty_metadata,
    ];
    $data[] = [
      $nonempty_render_array,
      $nonempty_metadata,
    ];
    return $data;
  }

  /**
   * @covers ::createFromObject
   * @dataProvider providerTestCreateFromObject
   */
  public function testCreateFromObject($object, CacheableMetadata $expected) {
    $this
      ->assertEquals($expected, CacheableMetadata::createFromObject($object));
  }

  /**
   * Provides test data for createFromObject().
   *
   * @return array
   */
  public function providerTestCreateFromObject() {
    $data = [];
    $empty_metadata = new CacheableMetadata();
    $nonempty_metadata = new CacheableMetadata();
    $nonempty_metadata
      ->setCacheContexts([
      'qux',
    ])
      ->setCacheTags([
      'foo:bar',
    ])
      ->setCacheMaxAge(600);
    $uncacheable_metadata = new CacheableMetadata();
    $uncacheable_metadata
      ->setCacheMaxAge(0);
    $empty_cacheable_object = new TestCacheableDependency([], [], Cache::PERMANENT);
    $nonempty_cacheable_object = new TestCacheableDependency([
      'qux',
    ], [
      'foo:bar',
    ], 600);
    $uncacheable_object = new \stdClass();
    $data[] = [
      $empty_cacheable_object,
      $empty_metadata,
    ];
    $data[] = [
      $nonempty_cacheable_object,
      $nonempty_metadata,
    ];
    $data[] = [
      $uncacheable_object,
      $uncacheable_metadata,
    ];
    return $data;
  }

}

Classes

Name	Description
CacheableMetadataTest	@coversDefaultClass \Drupal\Core\Cache\CacheableMetadata @group Cache