public function testGetListFromValidContext()
 {
     $container = $this->getMock('Symfony\\Component\\DependencyInjection\\ContainerInterface');
     $manager = new BlockServiceManager($container, true);
     $service = $this->getMock('Sonata\\BlockBundle\\Block\\BlockServiceInterface');
     $manager->add('foo.bar', $service, array('fake'));
     $this->assertNotEmpty($manager->getServicesByContext('fake'));
 }