@Test
public void testDefaultUrl() {

    String address = "127.0.0.1";
    URL url = UrlUtils.parseURL(address, null);
    assertEquals(localAddress + ":9090", url.getAddress());
    assertEquals(9090, url.getPort());
    assertEquals("dubbo", url.getProtocol());
    assertNull(url.getUsername());
    assertNull(url.getPassword());
    assertNull(url.getPath());
}