[DoctorMemory]

This looks like a pretty decent tutorial for it's target audience. However, as someone who works with Unity on AR and VR the biggest bit of advice I can give is learn how Unity WANTS you to work with it! Currently we are re-writing an AR/VR test suite because the original version was written by programmers with little or no Unity experience. This means they re-wrote scene loading, cameras, and other parts that were already in Unity (or no one re-factored when it was added/updated!). I highly suggest catching the Udemy Unity Certified Developer course on a sale. It will give you an overview of all the parts of Unity that you might not touch. But it will also get you used to Unity's workflow. (https://www.udemy.com/unitycert/)

[AdieuToLogic]

  Currently we are re-writing an AR/VR test
  suite ...

The Unity Test Tools[0] asset may be something which could assist in the test suite(s) your team is re-writing. One tip in using it is that the TestComponent's in an integration test scene are run in lexicographical order. So I enforce sequencing when needed by prefixing with "1 - ", "2 - ", etc.

HTH

0 - https://www.assetstore.unity3d.com/en/#!/content/13802