'Pre-Django 2.0 aliases with u prefix are still available.'

@translation.override('de')
def test_legacy_aliases(self):

    self.assertEqual(ugettext('Image'), 'Bild')
    self.assertEqual(ugettext_lazy('Image'), gettext_lazy('Image'))
    self.assertEqual((ungettext('%d    year', '%d    years', 0) % 0), '0    Jahre')
    self.assertEqual((ungettext_lazy('%d    year', '%d    years', 0) % 0), (ngettext_lazy('%d    year', '%d    years', 0) % 0))
