Why does "yield return new WaitForEndOfFrame()" never returns in batchmode?

Question

I am trying to write integration tests by using unity test tools package.

Tests run without problem in the editor (in play mode).

But when I try to run the integration test from the command line (in batchmode) WaitForEndOfFrame coroutine never returns.

Is this a known issue or am I missing something?

I am using the below command to run the tests:

 /Applications/Unity-5.3.1-f1/Unity.app/Contents/MacOS/Unity \
  -batchmode \
  -nographics \
  -logfile \
  -projectPath $(pwd) \
  -executeMethod UnityTest.Batch.RunIntegrationTests \
  -testscenes=TestScene \
  -resultsFileDirectory=$(pwd)

Answer 1

Unity doesn't update frames in the Editor when in Batch Mode. From their documentation:

• You cannot use WaitForEndOfFrame when running the Editor with -batchmode, because systems like animation, physics and timeline might not work correctly in the Editor. This is because Unity does not currently update these systems when using WaitForEndOfFrame.