public IActionResult Calculate([FromBody] JsonRequest request)
{
if (!ModelState.IsValid)
{
return(BadRequest(new
{
code = 400,
message = ModelState.Values.First().Errors.First().ErrorMessage
}));
}
if (null == request)
{
return(new BadRequestResult());
}
_logger.LogInformation($"Get calculate request. CalculatorState: {request.calculatorState?.State}, Input: {request.Input}.");
try
{
return(this.Ok(request.CalculateNextState()));
}
catch (Exception e)
{
_logger.LogError(e.Message);
return(this.Ok(JsonRequestExtension.InitialResponse()));
}
}
public void TestEmptyJsonRequestReturnEmptyDisplay()
{
//arrange
JsonRequest request = new JsonRequest();
//act
JsonResponse response = request.CalculateNextState();
//assert
response.Display.Should().Be("");
}
public void TestComplexCalculationWithNegativeNumbersFromJsonRequest()
{
//arrange
JsonRequest request = new JsonRequest {
Input = "=", calculatorState = new JsonResponse {
State = "15+4--7+-8*-4"
}
};
string result = "-72";
//act
JsonResponse response = request.CalculateNextState();
//assert
response.Display.Should().Be(result);
}
public void TestAllOperatorsCalculationFromJsonRequest()
{
//arrange
JsonRequest request = new JsonRequest {
Input = "=", calculatorState = new JsonResponse {
State = @"15+6*2-5-2/5"
}
};
string result = "7";
//act
JsonResponse response = request.CalculateNextState();
//assert
response.Display.Should().Be(result);
}
public void TestFloatDivCalculationFromJsonRequest()
{
//arrange
JsonRequest request = new JsonRequest {
Input = "=", calculatorState = new JsonResponse {
State = "10/3"
}
};
string result = (10 / 3f).ToString();
//act
JsonResponse response = request.CalculateNextState();
//assert
response.Display.Should().Be(result);
}
public void TestNegativeDisplay()
{
//arrange
JsonRequest request = new JsonRequest {
Input = "8", calculatorState = new JsonResponse {
State = @"34/-17", Display = "-17"
}
};
string result = "-178";
//act
JsonResponse response = request.CalculateNextState();
//assert
response.Display.Should().Be(result);
}
public void TestReturnsInputFromNotEmptyJsonRequestState()
{
//arrange
JsonRequest request = new JsonRequest {
Input = "5", calculatorState = new JsonResponse {
State = "1", Display = "1"
}
};
string result = "15";
//act
JsonResponse response = request.CalculateNextState();
//assert
response.Display.Should().Be(result);
}
public void TestCalculationWithNagativeNumbersFromJsonRequest()
{
//arrange
JsonRequest request = new JsonRequest {
Input = "=", calculatorState = new JsonResponse {
State = @"15+6*2-5-2/5-3-15"
}
};
string result = "-11";
//act
JsonResponse response = request.CalculateNextState();
//assert
response.Display.Should().Be(result);
}
public void TestSumCalculationFromJsonRequest()
{
//arrange
JsonRequest request = new JsonRequest {
Input = "=", calculatorState = new JsonResponse {
State = "15+4"
}
};
string result = "19";
//act
JsonResponse response = request.CalculateNextState();
//assert
response.Display.Should().Be(result);
}
