public void DivisionTest(double first, double second, double expected)
 {
     DoubleArgCalculator calculator = new Division();
     double result = calculator.Calculate(first, second);
     Assert.AreEqual(expected, result, 0.1);
 }
 public void DivisionByZero()
 {
     DoubleArgCalculator calculator = new Division();
     Assert.Throws<Exception>(() => calculator.Calculate(12, 0));
 }