'Test with split_module->vertical->video structure.'

def test_with_split_vertical(self):

    self.login_and_enroll()
    (split_vertical_a, split_vertical_b) = self._setup_split_module('vertical')
    ItemFactory.create(parent=split_vertical_a, category='video', display_name=u'video    in    vertical    a')
    ItemFactory.create(parent=split_vertical_b, category='video', display_name=u'video    in    vertical    b')
    video_outline = self.api_response().data
    self.assertEqual(len(video_outline), 1)
    self.assertIn(u'video    in    vertical', video_outline[0]['summary']['name'])
    a_or_b = video_outline[0]['summary']['name'][(-1):]
    self._verify_paths(video_outline, [self.section.display_name, self.sub_section.display_name, self.unit.display_name, self.split_test.display_name, (u'split    test    block    ' + a_or_b)])
