'The flatpage admin form correctly enforces url uniqueness among flatpages of the same site'

def test_flatpage_admin_form_url_uniqueness_validation(self):

    data = dict(url='/myflatpage1/', **self.form_data)
    FlatpageForm(data=data).save()
    f = FlatpageForm(data=data)
    with translation.override('en'):
        self.assertFalse(f.is_valid())
        self.assertEqual(f.errors, {'__all__': ['Flatpage    with    url    /myflatpage1/    already    exists    for    site    example.com']})
