public void OperationTest_CosinesCorrectly()
{
Models.CalculationModel model = new CalculationModel("-45", "cos");
Assert.AreEqual(model.FirstOperand, "-45");
Assert.AreEqual(model.Operation, "cos");
Assert.AreEqual(model.Result, string.Empty);
model.CalculateResult();
Assert.AreEqual(model.Result, "0.707106781186548");
}
public void OperationTest_TangentsCorrectly()
{
Models.CalculationModel model = new CalculationModel("-45", "tan");
Assert.AreEqual(model.FirstOperand, "-45");
Assert.AreEqual(model.Operation, "tan");
Assert.AreEqual(model.Result, string.Empty);
model.CalculateResult();
Assert.AreEqual(model.Result, "-1");
}
public void OperationTest_AddsCorrectly()
{
Models.CalculationModel model = new CalculationModel("3", "500", "+");
Assert.AreEqual(model.FirstOperand, "3");
Assert.AreEqual(model.SecondOperand, "500");
Assert.AreEqual(model.Operation, "+");
Assert.AreEqual(model.Result, string.Empty);
model.CalculateResult();
Assert.AreEqual(model.Result, "503");
}
public void OperationButtonPress(string operation)
{
try
{
if (FirstOperand == string.Empty || LastOperation == "=")
{
FirstOperand = display;
LastOperation = operation;
}
else
{
SecondOperand = display;
Operation = lastOperation;
calculation.CalculateResult();
if (Operation == "1/" || Operation == "sqr" || Operation == "sqrt")
{
FullExpression = Operation + "(" +
Math.Round(Convert.ToDouble(SecondOperand), 10) + ")";
}
else
{
FullExpression = Math.Round(Convert.ToDouble(FirstOperand), 10) + " " + Operation + " "
+ Math.Round(Convert.ToDouble(SecondOperand), 10);
}
LastOperation = operation;
Display = Result;
FirstOperand = display;
}
newDisplayRequired = true;
}
catch (Exception)
{
Display = Result == string.Empty ? "Error" : Result;
}
}
