'Tree from fixture:
+ P1
| + P2
|   + P3
| + P9
|   + P10
|      + P11
+ P4
| + P5
+ P6 (not in menu)
+ P7
+ P8'

def create_fixtures(self):

    defaults = {'template': 'nav_playground.html', 'language': 'en'}
    with self.settings(CMS_MODERATOR=False, CMS_PERMISSION=False):
        p1 = create_page('P1', published=True, in_navigation=True, **defaults)
        p4 = create_page('P4', published=True, in_navigation=True, **defaults)
        p6 = create_page('P6', published=True, in_navigation=False, **defaults)
        p2 = create_page('P2', published=True, in_navigation=True, parent=p1, **defaults)
        create_page('P3', published=True, in_navigation=True, parent=p2, **defaults)
        create_page('P5', published=True, in_navigation=True, parent=p4, **defaults)
        create_page('P7', published=True, in_navigation=True, parent=p6, **defaults)
        create_page('P8', published=True, in_navigation=True, parent=p6, **defaults)
        p9 = create_page('P9', published=True, in_navigation=True, parent=p1, **defaults)
        p10 = create_page('P10', published=True, in_navigation=True, parent=p9, **defaults)
        create_page('P11', published=True, in_navigation=True, parent=p10, **defaults)
