public void DeleteContactlistsContactlistIdContactsContactIdTest() { // TODO: add unit test for the method 'DeleteContactlistsContactlistIdContactsContactId' string contactListId = null; // TODO: replace null with proper value string contactId = null; // TODO: replace null with proper value var response = instance.DeleteContactlistsContactlistIdContactsContactId(contactListId, contactId); Assert.IsInstanceOf <string> (response, "response is string"); }