def test_copy_filled_placeholder(self):
        """
        If an existing title in the target language has plugins in a placeholder
        that placeholder is skipped
        """
        site = 1
        number_start_plugins = CMSPlugin.objects.all().count()

        # create an empty title language
        root_page = Page.objects.on_site(site).get_home()
        create_title("de", "root page de", root_page)
        ph = root_page.placeholders.get(slot="body")
        add_plugin(ph, "TextPlugin", "de", body="Hello World")

        out = StringIO()
        management.call_command(
            'cms', 'copy', 'lang', '--from-lang=en', '--to-lang=de', interactive=False, stdout=out
        )

        self.assertEqual(CMSPlugin.objects.filter(language='en').count(), number_start_plugins)
        # one placeholder (with 7 plugins) is skipped, so the difference must be 6
        self.assertEqual(CMSPlugin.objects.filter(language='de').count(), 6-number_start_plugins)
dataset/ETHPy150Open divio/django-cms/cms/tests/test_management.py/PageFixtureManagementTestCase.test_copy_filled_placeholder/swapped operands of `-`