def METHOD_NAME(self):
    response = self.app.get(
        reverse("admin:forms_formdefinition_changelist"), user=self.user
    )
    form = response.forms["changelist-form"]
    form["action"] = "make_copies"
    form["_selected_action"] = [
        str(form_definition.pk) for form_definition in FormDefinition.objects.all()
    ]
    form.submit()
    self.assertEqual(FormDefinition.objects.count(), 2)
    copied_form = FormDefinition.objects.exclude(pk=self.form_definition.pk).first()
    self.assertEqual(
        copied_form.name, _("{name} (copy)").format(name=self.form_definition.name)
    )
    self.assertEqual(
        copied_form.slug, _("{slug}-copy").format(slug=self.form_definition.slug)
    )