'Create a sample source cs_thread'

def create_source_thread(self, overrides=None):

    thread = make_minimal_cs_thread({u'id': u'test_thread', u'course_id': unicode(self.course.id), u'commentable_id': u'test_topic', u'user_id': str(self.user.id), u'username': self.user.username, u'created_at': u'2015-04-28T00:00:00Z', u'updated_at': u'2015-04-28T11:11:11Z', u'title': u'Test    Title', u'body': u'Test    body', u'votes': {u'up_count': 4}, u'comments_count': 5, u'unread_comments_count': 3})
    thread.update((overrides or {}))
    return thread
