@Override
  protected String getExpectedVersionSource() {
    return String.valueOf(new InetSocketAddress(TestConfig.IPV4_ADDR,
        TestConfig.PORT_NUMBER));
  }
This test assumes a binary server is running on the host specified int the
environment variable SPYMC_TEST_SERVER_V4 or localhost:11211 by default.
src/test/java/net/spy/memcached/BinaryClientTest.java