// Make sure we expected this to fail.
        assertEquals(-1, expectPort);
      }
      assertEquals(expectHost, hp2.getHost());
    }
  }

  public void testFromParts() {
    HostAndPort hp = HostAndPort.fromParts("gmail.com", 81);
    assertEquals("gmail.com", hp.getHost());
    assertTrue(hp.hasPort());
    assertEquals(81, hp.getPort());

    try {