public void Base64Encode_ValidInput_ExpectedResultReturned()
		{
			var cryptonator = new Base64Cryptonator();
			const string expected = "dGVzdFN0cmluZzEyMw==";
			var decoded = cryptonator.Encode("testString123");

			Assert.AreEqual(decoded, expected);
		}
		public void Base64Encode_ParameterEmpty_ExceptionThrown()
		{
			var cryptonator = new Base64Cryptonator();
			Assert.Throws<ArgumentNullException>(() => cryptonator.Encode(string.Empty));
		}
		public void Base64Decode_ParameterNull_ExceptionThrown()
		{
			var cryptonator = new Base64Cryptonator();
			Assert.Throws<ArgumentNullException>(() => cryptonator.Decode(null));
		}