public async Task KeyExpiryTestAsync()
{
const string key = "expirytest";
const string value = "haha";
await _redis.StringSetAsync(key, value);
await _redis.KeyExpireAsync(key, TimeSpan.FromSeconds(3));
Assert.Equal(value, await _redis.StringGetAsync <string>(key));
await Task.Delay(3000);
Assert.Null(await _redis.StringGetAsync <string>(key));
}
