* Add a check of a child panel too
* do not cover error catching
* test for implementation error
* Add warning to test for
* Add test for event_sample
* ignore safety switches
* Add a settings flag to enable event testing
* test if not implemented is raises
* raise plugin specific errors
* use plugin specific error
* fix assertation
* add test for mixin
* this point can't be reached
* add tests for locate plugin
* fix assertations
* fix function call
* refert switch
* this is already caught by the internal API
* also cover mixin redirect