{$this->fieldName}->value = 1; $items = $entity->get($this->fieldName); $build = $items->view(); $this->assertEqual($build['#formatter'], 'list_default', 'Ensure to fall back to the default formatter.'); $this->assertEqual($build[0]['#markup'], 'One'); $build = $items->view(['type' => 'list_key']); $this->assertEqual($build['#formatter'], 'list_key', 'The chosen formatter is used.'); $this->assertEqual((string) $build[0]['#markup'], 1); } }