def METHOD_NAME(self):
    with session.begin():
        recipe = self.job.recipesets[0].recipes[0]
        task = recipe.tasks[0]
    comment_text = u'Never gonna let you down'
    out = run_client(['bkr', 'job-comment', task.t_id,
                      '--message', comment_text])
    with session.begin():
        session.expire_all()
        self.assertEqual(task.comments[0].comment, comment_text)