Urine test did i pass help

Marijuana infrequent use urine test
I smoked a single hit of weed out of a small cigarette pipe and had a piss test today. I drank about 50 oz of water before pissing..it was completely diluted. Last time i smoked was over a year ago. It had been five days since i smoked and the urinalysis. Anyone with EXPERIENCE please help. Do you think i will test clean. I took a small little hit. Some stats i'm 21 5'6 135 pounds high metabolism and fairly active..i don't believe the whole 30 days until clean theory. Please only people with experience answer. I also took home urine test day after urinalysis and it was negative