code: @Test public void testBinder(){
    ApplicationConfig applicationConfig=new ApplicationConfig();
    dubboConfigBinder.bind("dubbo.application",applicationConfig);
    Assert.assertEquals("hello",applicationConfig.getName());
    Assert.assertEquals("world",applicationConfig.getOwner());
    RegistryConfig registryConfig=new RegistryConfig();
    dubboConfigBinder.bind("dubbo.registry",registryConfig);
    Assert.assertEquals("10.20.153.17",registryConfig.getAddress());
    ProtocolConfig protocolConfig=new ProtocolConfig();
    dubboConfigBinder.bind("dubbo.protocol",protocolConfig);
    Assert.assertEquals(Integer.valueOf(20881),protocolConfig.getPort());
  }
  