public void Test_Calculator()
{
int a = 5;
int b = 5;
Assert.Equal(10, CalculatorClass.Sum(a, b));
Assert.Equal(0, CalculatorClass.Substract(a, b));
Assert.Equal(25, CalculatorClass.Multiply(a, b));
Assert.Equal(1, CalculatorClass.Divide(a, b));
}
