Aderall in mouth swab test?

OK first of all i want a serious answer i don't want to hear about why i shouldn't do drugs or any lectures so save the bullshit. i know that amphetamines are detectable in saliva but there is no where on the internet that states how long they are detectable for. i took one 40 mg aderall pill this morning at 8:00 am of course i did not eat anything all day the only think i ingested other then the pill was water. i have a swab test tomorrow at 4pm now does any one know from PAST EXPERIENCE not research if it will be detectable? or any way i can p the swab