public void CalculateTest(double firstValue, double expected)
{
var calculator = new Cosinus();
var actualResult = calculator.Calculate(firstValue);
Assert.AreEqual(expected, actualResult, 0.0001);
}
public void CalculateTestExceptionTest()
{
IOneArgumentCalculator calculator = new Cosinus();
Assert.Throws <Exception>(() => calculator.Calculate(3));
}