Jenkins console output
I found out unit tests are not being run by Jenkins for TimedMediaHandler. The reason was that, once upon a time, we were not able to declare the dependency upon extension MwEmbedSupport.
I have configured the Jenkins job https://integration.wikimedia.org/ci/job/mwext-TimedMediaHandler-testextensions-master/ to grab MwEmbedSupport with https://gerrit.wikimedia.org/r/115248
I ran dummy test using the master branch and they are failing:
I will add the job to Zuul as a non voter. Whenever the tests are passing again we can make them voting in Zuul.