public async Task AddAndExistTest()
{
_cacheProvider.Initialize("test", _enabledSettings);
const string key = "TestKey";
const string region = "FirstRegion";
const int cacheObject = 111;
Assert.IsTrue(await _cacheProvider.Add(key, cacheObject, region, new CacheOptions()));
var item = await _cacheProvider.Exist(key, region);
Assert.IsTrue(item);
}