@Test
public void testNamespace() {
// memcache.setNamespace() is deprecated.
MemcacheService otherMemcache = MemcacheServiceFactory.getMemcacheService("other");
otherMemcache.clearAll();
memcache.clearAll();
String key = createTimeStampKey("testNamespace");
otherMemcache.put(key, "default");
assertNull("This key should not exist in the default namespace.", memcache.get(key));