You’re not still setting newspaper on fire to check your smoke detector are you? That’s a fire hazard. Use Smoke Check, smoke detector test instead. Each can has 200+ checks, can be used on photoelectric or ionisation detectors and there are heaps of accessories to make testing even easier.
Smoke Detector Tester puts both photoelectric and ionization smoke detectors through their paces to ensure that the circuitry, alarm and power is functioning and that they are actively sampling the air for any hint of a fire.