public void CalcFunctions_Subtract_Two_Numbers()
{
int a = 1, b = 2;
int result = (int)CalcFunctions.Subtract(b, a);
Assert.AreEqual(result, b - a);
}
public void CalcFunctions_Subtract_Two_Double_Numbers()
{
double a = 2.393, b = 4.9393;
double result = (double)CalcFunctions.Subtract(a, b);
Assert.AreEqual(result, a - b);
}
public void CalcFunctions_Subtract_Int_And_Double_Numbers()
{
double a = 12.392;
int b = 5;
double result = (double)CalcFunctions.Subtract(a, b);
Assert.AreEqual(result, a - b);
}
public void Check_For_Integer_Underflow_Sub()
{
int a = Int32.MinValue;
int b = 1;
object result = CalcFunctions.Subtract(a, b);
Assert.AreEqual(result.ToString(), "UNDERFLOW");
}