class CacheabilityMetadataConfigOverrideTest

class CacheabilityMetadataConfigOverrideTest extends KernelTestBase {
  
  /**
   * {@inheritdoc}
   */
  protected static $modules = [
    'block',
    'block_content',
    'config',
    'config_override_test',
    'path_alias',
    'system',
    'user',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    $this->installEntitySchema('block_content');
    $this->installConfig([
      'config_override_test',
    ]);
  }
  
  /**
   * Tests if config overrides correctly set cacheability metadata.
   */
  public function testConfigOverride() {
    // It's pirate day today!
    $GLOBALS['it_is_pirate_day'] = TRUE;
    $config_factory = $this->container
      ->get('config.factory');
    $config = $config_factory->get('system.theme');
    // Check that we are using the Pirate theme.
    $theme = $config->get('default');
    $this->assertEquals('pirate', $theme);
    // Check that the cacheability metadata is correct.
    $this->assertEquals([
      'pirate_day',
    ], $config->getCacheContexts());
    $this->assertEquals([
      'config:system.theme',
      'pirate-day-tag',
    ], $config->getCacheTags());
    $this->assertEquals(PirateDayCacheContext::PIRATE_DAY_MAX_AGE, $config->getCacheMaxAge());
  }
  
  /**
   * Tests if config overrides set cacheability metadata on config entities.
   */
  public function testConfigEntityOverride() {
    // It's pirate day today!
    $GLOBALS['it_is_pirate_day'] = TRUE;
    // Load the User login block and check that its cacheability metadata is
    // overridden correctly. This verifies that the metadata is correctly
    // applied to config entities.
    /** @var \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager */
    $entity_type_manager = $this->container
      ->get('entity_type.manager');
    $block = $entity_type_manager->getStorage('block')
      ->load('call_to_action');
    // Check that our call to action message is appealing to filibusters.
    $this->assertEquals('Draw yer cutlasses!', $block->label());
    // Check that the cacheability metadata is correct.
    $this->assertEquals([
      'pirate_day',
    ], $block->getCacheContexts());
    $this->assertEquals([
      'config:block.block.call_to_action',
      'pirate-day-tag',
    ], $block->getCacheTags());
    $this->assertEquals(PirateDayCacheContext::PIRATE_DAY_MAX_AGE, $block->getCacheMaxAge());
    // Check that duplicating a config entity does not have the original config
    // entity's cache tag.
    $this->assertEquals([
      'config:block.block.',
      'pirate-day-tag',
    ], $block->createDuplicate()
      ->getCacheTags());
    // Check that renaming a config entity does not have the original config
    // entity's cache tag.
    $block->set('id', 'call_to_looting')
      ->save();
    $this->assertEquals([
      'pirate_day',
    ], $block->getCacheContexts());
    $this->assertEquals([
      'config:block.block.call_to_looting',
      'pirate-day-tag',
    ], $block->getCacheTags());
    $this->assertEquals(PirateDayCacheContext::PIRATE_DAY_MAX_AGE, $block->getCacheMaxAge());
  }

}