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