public static void Magnitude(double x1, double y1, double x2, double y2, double expectedResult)
{
double xComponent = x2 - x1;
double yComponent = y2 - y1;
Assert.AreEqual(expectedResult, VectorLibrary.Magnitude(xComponent, yComponent), Tolerance);
}
public static void Magnitude_Throws_ArgumentException_for_Zero_Magnitude()
{
Assert.Throws <ArgumentException>(() => VectorLibrary.Magnitude(0, 0));
}