public void CalculateTest(double firstValue, double secondValue, double expected)
{
var calculator = new Substract();
var actualResult = calculator.Calculate(firstValue, secondValue);
Assert.AreEqual(expected, actualResult);
}
public void Calculate(double firstInput, double secondInput, double output)
{
var calculator = new Substract();
var testResult = calculator.Calculate(firstInput, secondInput);
var result = output;
Assert.AreEqual(testResult, result);
}