public void testAsyncIncrementWithDefault() throws Exception {
    String k = "async-incr-with-default";
    try {
      client.asyncIncr(k, 1, 5);
      assertTrue(false);
    } catch (UnsupportedOperationException e) {
      assertTrue(true);
    }
  }
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