How does unity determine what platform tests are run on?

Questions & Answers
1

I’m running Unity on Windows 10 and want to make sure my tests are restricted to run on RuntimePlatform.WSAPlayerARM, RuntimePlatform.WSAPlayerX64, or RuntimePlatform.WSAPlayerARM, so I’ve used the UnityPlatform attribute to specify this. The test relies on code which is only compiled on Windows 10, and not for the editor; that is, it’s surrounded by #ifdef UNITY_WSA_10_0 && !UNITY_EDITOR… #endif. When I run the test, it claims that a certain object reference is not set ( NullReferenceException) because Application.platform is WindowsEditor, meaning that UNITY_EDITOR is true and that code isn’t being compiled, at least for my tests.

I had to remove my UnityPlatform attribute to get my tests (which are in PlayMode) to run, because when I ran them from the test runner, the test just said that the test was only supported on those certain platforms. I don’t understand how I can get these tests to run, because I’m ostensibly on a platform (Windows 10) which can run the platforms I’ve specified.

Is there something I’m missing? Am I specifying the wrong RuntimePlatforms? Any help would be greatly appreciated.

2

I was being a bit dense here. Instead of using the “Run all tests” or right click->run test methods, I should have been using the “Run all in player” button in the test runner window.