public function testMetadataHandler()
 {
     $this->container->setParameter('ez_io.metadata_handlers', array('my_handler' => array('name' => 'my_handler', 'type' => 'test_handler')));
     $this->metadataConfigurationFactoryMock->expects($this->once())->method('getParentServiceId')->will($this->returnValue('test.io.metadata_handler.test_handler'));
     $this->compile();
     $this->assertContainerBuilderHasServiceDefinitionWithParent('test.io.metadata_handler.test_handler.my_handler', 'test.io.metadata_handler.test_handler');
 }