def METHOD_NAME(self, case_id):
    """
    Shortcut to close a case (and do nothing else)
    Use corehq.form_processor.tests.utils.create_case() instead if possible.
    This submits a form to create the case. The form_procssor version
    creates and saves the case directly, which is faster.
    """
    return self.create_or_update_case(CaseStructure(case_id=case_id, attrs={'close': True}))[0]