Not so - you can have a cracked windscreen and chips up to 16mm as long as they are not in the area cleared by the wipers. Oil leaks are acceptable as long as nothing is dripping onto the road - the underside of the car can be covered in crud from an oil weep and still be roadworthy.
If you ever get one done, take a copy of the guidelines in with you -
Vicroads - Roadworthy Requirements and ask the tester to point out exactly where an item fails. You would be surprised at how often they can't and they will remove it from the list. If they argue the point, tell the, you will seek a resolution through Vicroads - most of them will cave in when told this.
Too many people just take the testers word for gospel, even though it may not be a legitimate item they are failing. If it isn't on that list I've attached a link to, then they can't pick on it.:)