public void Test_AverageByMean()
{
IAvaragingMethod method = new MeanAvaragingMethod();
double expected = 8.3636363;
double actual = method.CalculateAvarage(values);
Assert.AreEqual(expected, actual, 0.000001);
}
public void Test_AverageByMean_Exception()
{
IAvaragingMethod method = new MeanAvaragingMethod();
Assert.Throws <ArgumentNullException>(() => method.CalculateAvarage(null));
}