def test_ext_case_preload_host_case(self):
        self.form.actions.load_update_cases.append(LoadUpdateAction(
            case_type=self.module.case_type,
            case_tag='load_1',
            preload={
                '/data/question1': 'question1',
                '/data/question2': 'host/question2'
            },
        ))
        self.assertXmlEqual(self.get_xml('preload_host_case_adv'), self.form.render_xform())
A extension case should be able to preload host case properties in an advanced module
dataset/ETHPy150Open dimagi/commcare-hq/corehq/apps/app_manager/tests/test_extension_case.py/ExtCasePropertiesAdvancedTests.test_ext_case_preload_host_case