class NodeAccessCacheabilityWithNodeGrants

class NodeAccessCacheabilityWithNodeGrants extends BrowserTestBase {
  use EntityReferenceTestTrait;
  
  /**
   * {@inheritdoc}
   */
  protected static $modules = [
    'node',
    'node_test',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'stark';
  
  /**
   * Tests node view access cacheability with node grants.
   */
  public function testAccessCacheabilityWithNodeGrants() {
    NodeType::create([
      'type' => 'page',
    ])->save();
    $this->createEntityReferenceField('node', 'page', 'ref', 'Ref', 'node');
    EntityViewDisplay::create([
      'targetEntityType' => 'node',
      'bundle' => 'page',
      'mode' => 'default',
      'status' => TRUE,
    ])->setComponent('ref', [
      'type' => 'entity_reference_label',
    ])
      ->save();
    // Check that at least one module implements hook_node_grants() as this test
    // only tests this case.
    // @see \node_test_node_grants()
    $this->assertTrue(\Drupal::moduleHandler()->hasImplementations('node_grants'));
    // Create an unpublished node.
    $referenced = $this->createNode([
      'status' => FALSE,
    ]);
    // Create a node referencing $referenced.
    $node = $this->createNode([
      'ref' => $referenced,
    ]);
    // Check that the referenced entity link doesn't show on the host entity.
    $this->drupalGet($node->toUrl());
    $this->assertSession()
      ->linkNotExists($referenced->label());
    // Publish the referenced node.
    $referenced->setPublished()
      ->save();
    // Check that the referenced entity link shows on the host entity.
    $this->getSession()
      ->reload();
    $this->assertSession()
      ->linkExists($referenced->label());
  }

}