'Create initial data.'

def setUp(self):

    super(BaseTranscripts, self).setUp()
    data = {'parent_locator': unicode(self.course.location), 'category': 'video', 'type': 'video'}
    resp = self.client.ajax_post('/xblock/', data)
    self.assertEqual(resp.status_code, 200)
    self.video_usage_key = self._get_usage_key(resp)
    self.item = modulestore().get_item(self.video_usage_key)
    self.item.data = '<video    youtube="0.75:JMD_ifUUfsU,1.0:hI10vDNYz4M,1.25:AKqURZnYqpk,1.50:DYpADpL7jAY"    />'
    modulestore().update_item(self.item, self.user.id)
    self.item = modulestore().get_item(self.video_usage_key)
    self.clear_subs_content()
