public function testcreate_notification_email() { $meeting = new Meeting(); $meeting->date_start = '2016-02-11 17:30:00'; $meeting->date_end = '2016-02-11 17:30:00'; //test without setting user $result = $meeting->create_notification_email(new User()); $this->assertInstanceOf('SugarPHPMailer', $result); //test with valid user $result = $meeting->create_notification_email(new User(1)); $this->assertInstanceOf('SugarPHPMailer', $result); }