public void WantToTestSubFunctionality()
{
var cal1 = new Calculator();
double sub = cal1.Substraction(2, 2);
Assert.AreEqual(0, sub);
}
public void WantToTestDecimalSubstraction1()
{
var cal2 = new Calculator();
double sub = cal2.Substraction(2.2, 1.1);
Assert.AreEqual(1.1, sub);
}
public void WantToTestDecimalSubstraction3()
{
Calculator calculator = new Calculator();
double sub = calculator.Substraction(2.0, 1);
Assert.AreEqual(1.0, sub);
}