public void ACOSCalculator(
double firstValue,
double expected)
{
ACOSCalculator calculator = new ACOSCalculator();
double actual = calculator.Calculate(firstValue);
Assert.AreEqual(expected, actual, 0.001);
}
public void ACOSCalculator()
{
ACOSCalculator calculator = new ACOSCalculator();
Assert.Throws <Exception>(() => calculator.Calculate(2));
}