public void TestNormalisedExpected(Vector3D v, double expectedX, double expectedY, double expectedZ)
{
v.Normalise();
TestXYZ(v, expectedX, expectedY, expectedZ);
}
public void TestInvalidNormalise()
{
Vector3D zeroVector = new Vector3D(0, 0, 0);
zeroVector.Normalise();
TestXYZ(zeroVector, 0, 0, 0);
}