/**
  * @dataProvider getVariantExtensionKeysForContentTypeTestValues
  * @param array $variants
  * @param string $contentType
  * @param array $expected
  */
 public function testGetVariantExtensionKeysForContentType(array $variants, $contentType, array $expected)
 {
     $instance = new AccessibleConfigurationService();
     $instance->setVariants($variants);
     $result = $instance->getVariantExtensionKeysForContentType($contentType);
     $this->assertEquals($expected, $result);
 }