@Test
public void testGetConfig() {

    put("/dubbo/config/org.apache.dubbo.etcd.testService/configurators", "hello");
    put("/dubbo/config/test/dubbo.properties", "aaa=bbb");
    Assert.assertEquals("hello", config.getConfig("org.apache.dubbo.etcd.testService.configurators", DynamicConfiguration.DEFAULT_GROUP));
    Assert.assertEquals("aaa=bbb", config.getConfig("dubbo.properties", "test"));
}