class FieldAccessTest

class FieldAccessTest extends KernelTestBase {
  
  /**
   * Modules to load code from.
   *
   * @var array
   */
  protected static $modules = [
    'entity_test',
    'field',
    'system',
    'text',
    'filter',
    'user',
  ];
  
  /**
   * Holds the currently active global user ID that initiated the test run.
   *
   * The user ID gets replaced during the test and needs to be kept here so that
   * it can be restored at the end of the test run.
   *
   * @var int
   */
  protected $activeUid;
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    // Install field configuration.
    $this->installConfig([
      'field',
    ]);
    $this->installEntitySchema('entity_test');
    $this->installEntitySchema('entity_test_mul');
    $this->installEntitySchema('entity_test_mul_langcode_key');
    $this->installEntitySchema('entity_test_mul_changed');
    $this->installEntitySchema('entity_test_rev');
    $this->installEntitySchema('entity_test_mulrev');
    $this->installEntitySchema('entity_test_mulrev_changed');
    // The users table is needed for creating dummy user accounts.
    $this->installEntitySchema('user');
    // Register entity_test text field.
    $this->container
      ->get('module_handler')
      ->loadInclude('entity_test', 'install');
    entity_test_install();
  }
  
  /**
   * Tests hook_entity_field_access() and hook_entity_field_access_alter().
   *
   * @see entity_test_entity_field_access()
   * @see entity_test_entity_field_access_alter()
   */
  public function testFieldAccess() {
    $values = [
      'name' => $this->randomMachineName(),
      'user_id' => 1,
      'field_test_text' => [
        'value' => 'no access value',
        'format' => 'full_html',
      ],
    ];
    $entity = EntityTest::create($values);
    // Create a dummy user account for testing access with.
    $values = [
      'name' => 'test',
    ];
    $account = User::create($values);
    $this->assertFalse($entity->field_test_text
      ->access('view', $account), 'Access to the field was denied.');
    $expected = AccessResult::forbidden()->addCacheableDependency($entity);
    $this->assertEquals($expected, $entity->field_test_text
      ->access('view', $account, TRUE), 'Access to the field was denied.');
    $entity->field_test_text = 'access alter value';
    $this->assertFalse($entity->field_test_text
      ->access('view', $account), 'Access to the field was denied.');
    $this->assertEquals($expected, $entity->field_test_text
      ->access('view', $account, TRUE), 'Access to the field was denied.');
    $entity->field_test_text = 'standard value';
    $this->assertTrue($entity->field_test_text
      ->access('view', $account), 'Access to the field was granted.');
    $this->assertEquals(AccessResult::allowed(), $entity->field_test_text
      ->access('view', $account, TRUE), 'Access to the field was granted.');
  }

}