ActionMaps Test

So far, I could not find a way to test an Action Map from an editor cell.

I created an Editor testcase, as indicated by the help website (Testing languages | MPS Documentation (jetbrains.com), however with no success.

The action Map from this cell is triggered by CLICK, and it works fine when using it in a solution context, but under test nodes I didn't find a way to trigger the action and later check the results of this action map.

Does anyone know some hints in this direction?