public void Should_CalculateZeroLength_ForZeroStep()
{
var interpolator = new Linear(
new Vector3d(0, 0, 0),
new Vector3d(1, 1, 1)
);
var length = interpolator.LengthAt(0);
Assert.AreEqual(0, length);
}
public void Should_CalculateMaxLength_ForFullEndPoint()
{
var interpolator = new Linear(
new Vector3d(0, 0, 0),
new Vector3d(1, 1, 1)
);
var length = interpolator.LengthAt(new Vector3d(1, 1, 1));
Assert.AreEqual(interpolator.Length, length);
}