public void GetExpireAsync()
{
Cache.Memory.Strings.SetAsync(KEY, SVALUE).Wait();
MemoryValue<string> actual = Cache.Memory.Strings.GetAsync<string>(KEY, TimeSpan.FromSeconds(1)).Result;
Assert.Equal(SVALUE, actual.Value);
Thread.Sleep(1200);
MemoryValue<string> purged = Cache.Memory.Strings.GetAsync<string>(KEY, TimeSpan.FromSeconds(1)).Result;
Assert.False(purged.Exists);
}