public void TestCalculateScaleWithInvalidZValue()
{
// initialised mock values
Vec3d mockTvec = new Vec3d(
-0.183446751848711,
-0.24590448762994,
0.0
);
float mockMarkerLength = 0.045f;
float mockOriginalScale = 100f;
// checked correct value for mock parameters
float expectedScale = mockOriginalScale;
float actualScale = Utilities.CalculateScale(mockTvec, mockMarkerLength, mockOriginalScale);
Assert.AreEqual(expectedScale, actualScale);
}