public void TestExtractFromPartitionKey() { const string city = "city"; const string date = "2015-05-21"; string partitionKey = string.Format("{0};{1}", city, date); Tuple <string, DateTime> values = NewsEntity.ExtractFromPartitionKey(partitionKey); Assert.AreEqual(city, values.Item1); Assert.AreEqual(DateTime.Parse(date), values.Item2); }