public void ValidBase64ButInvalidCharacterInput_BadResult_CalculationFailResult()
        {
            var query          = "JTIrICg1KjMpLzUh"; //%2+ (5*3)/5!
            var expectedResult = new CalculationFail {
                Error = true, Message = "Query parameter contains invalid characters. Allowed characters are digits, +, -, *, / and whitespace. Provided value was: %2+ (5*3)/5!"
            };
            var calculusController = new CalculusController();

            var actualResult = calculusController.Get(query) as BadRequestObjectResult;

            Assert.NotNull(actualResult);

            var badResult = actualResult.Value as CalculationFail;

            Assert.NotNull(badResult);
            Assert.True(expectedResult.Message == badResult.Message && expectedResult.Error == badResult.Error);
        }
        public void InvalidBase64Input_BadResult_CalculationFailResult()
        {
            var query          = "MisoNSozKS81!%"; //Invalid Base64
            var expectedResult = new CalculationFail {
                Error = true, Message = "Query parameter was not Base64 encoded or invalid. Provided value was: MisoNSozKS81!%"
            };
            var calculusController = new CalculusController();

            var actualResult = calculusController.Get(query) as BadRequestObjectResult;

            Assert.NotNull(actualResult);

            var badResult = actualResult.Value as CalculationFail;

            Assert.NotNull(badResult);
            Assert.True(expectedResult.Message == badResult.Message && expectedResult.Error == badResult.Error);
        }