public void PossibleToSumarizeValidParameters(double a, double b, double expected)
        {
            Divide calc   = new Divide();
            double actual = calc.ApplyTo(a, b);

            Assert.Equal(expected, actual);
        }
        private void DivideByZero()
        {
            Divide calc = new Divide();

            calc.ApplyTo(1, 0);
        }