public function testContainer()
 {
     $container = new ArrayContainer();
     $class = new \stdClass();
     $container->set('std', $class);
     $this->assertEquals($container->get('std'), $class);
     $container->setAlias('std2', 'std');
     $this->assertEquals($container->get('std2'), $class);
     $this->assertTrue($container->has('std'));
     $this->assertTrue($container->has('std2'));
 }