I took my car here for a diagnostic check and when...

I took my car here for a diagnostic check and when I took it there it was running just fine cranking and everything ok when the guy got done and told me I was ready to check out. I then got in my car and it would not start at all. No sound no nothing. I ask him what did he do he said nothing and I knew my car was cranking just find before I got there they need better mechanics and I will not go there ever again. I Hate Albany Honda