Back when I was the “new guy” code monkey at a fairly sizeable brick-and-mortor-and-e-retailer, I let the intrusive thoughts win and did some impromptu QA on the e-commerce site. (In the test environment. Don’t worry.)
It handled things like trying to put “0” or “-1” or “9999999999999” or “argyle” quantity of an item in the cart just fine.
But I know my 2’s-compliment signed integers. So I tried putting “0xFFFFFFFF” quantity of an item in my cart. Lo and behold, there was now -1 quantity of that item in my cart and my subtotal was also negative. I could also do things like put a $100.00 thing in the cart and then -1 quantity of something that cost $99.00 in the cart and have a $1.00 subtotal.
(IIRC, there was some issue with McDonalds ordering kiosks at one time where you could compose an order with negative quantities of things to get an arbitrarily large unauthorized discount.)
The rest of my team thought I was a fucking genius from that moment on. I highly recommend if you’re ever the “new guy” dev on a team and want to appear indispensible, find a bug that it would never occur to a QA engineer who doesn’t have a computer science degree to even test for.
A long time ago I was the guinea pig/first user for a company developed system.
I often had my 1 year old at the time son with me when I worked on the weekend. He had a great time smashing buttons on the keyboard and randomly clicking the mouse on the test version. He found most of the bugs.
The amount of times colleagues would dismiss bug reports because “they couldn’t reproduce” my steps rapidly declined when they didn’t only get the steps based on the video, but also the video.
Take that Daniel, you lazy <beeep>
Taught our test infrastructure to record and attach those recordings to the reports, too, before the manufacture of the testing tool implemented that. Good times.
The McDonalds thing was simple. 90 cent burger, minus cheese, was -10 cents. Or something along that way. Basically the “hold the cheese” value was fixed but they forgot some items with cheese are piss cheap.
To be fair, the team at the time was all business majors. (Is “Computer Information Systems” what they call that degree most places or just at my alma mater?) I think I was the only computer science major there.
They’d done a surprisingly admirable job of cobbling together a working e-commerce, loss prevention, customer sercvice portal, orderfulfillment, and CMS suite. And their schooling was in, like, finance, MS Office, and maybe one semester on actual programming.
None of them had ever learned how to count in binary. Let alone been exposed to 2’s compliment. And there were no QA engineers.
Oh, there was the sysadmin. He had a temper and was a cowboy. If you asked him to do something, it’d be fuckin’ done, man. But you did not want to know how he made sausage. The boss asked him to set up a way for us to do code reviews and he installed Atlassian Fisheye/Crucible on a laptop under his desk. We used that for years. And a lot of the business logic of the customer-facing e-commerce site lived in the rewrite rules in the Apache config that only he had access to and no one else could decipher if they did have access.
My school also had a major called “Computer Information Systems”. That was in the 90s. Do they still even offer that? Last I checked I didn’t see my school still offering that.
I know a french degree that I would translate to Computer Information System in English but there is waay more computer science in it that what you described… I’m so glad I didn’t live thought the hardship of international studies!
Back when I was the “new guy” code monkey at a fairly sizeable brick-and-mortor-and-e-retailer, I let the intrusive thoughts win and did some impromptu QA on the e-commerce site. (In the test environment. Don’t worry.)
It handled things like trying to put “0” or “-1” or “9999999999999” or “argyle” quantity of an item in the cart just fine.
But I know my 2’s-compliment signed integers. So I tried putting “0xFFFFFFFF” quantity of an item in my cart. Lo and behold, there was now -1 quantity of that item in my cart and my subtotal was also negative. I could also do things like put a $100.00 thing in the cart and then -1 quantity of something that cost $99.00 in the cart and have a $1.00 subtotal.
(IIRC, there was some issue with McDonalds ordering kiosks at one time where you could compose an order with negative quantities of things to get an arbitrarily large unauthorized discount.)
The rest of my team thought I was a fucking genius from that moment on. I highly recommend if you’re ever the “new guy” dev on a team and want to appear indispensible, find a bug that it would never occur to a QA engineer who doesn’t have a computer science degree to even test for.
A long time ago I was the guinea pig/first user for a company developed system.
I often had my 1 year old at the time son with me when I worked on the weekend. He had a great time smashing buttons on the keyboard and randomly clicking the mouse on the test version. He found most of the bugs.
You must have been lying close attention to see how they were triggered though.
Bug reports can be tough if you can’t repeat them. I’m glad you got some bonding time with littlie though, especially if you were on the clock.
Screen recording rules.
The amount of times colleagues would dismiss bug reports because “they couldn’t reproduce” my steps rapidly declined when they didn’t only get the steps based on the video, but also the video.
Take that Daniel, you lazy <beeep>
Taught our test infrastructure to record and attach those recordings to the reports, too, before the manufacture of the testing tool implemented that. Good times.
Just install a keylogger as well
You’re hired
Everyone has a test environment. If you’re lucky you have a production environment too.
The McDonalds thing was simple. 90 cent burger, minus cheese, was -10 cents. Or something along that way. Basically the “hold the cheese” value was fixed but they forgot some items with cheese are piss cheap.
Mcdonalds lowers the price if you take ingredients off?
They do, but less than when it fucked them over. And only at the terminal in restaurant.
I thought testing 2s complement was a common thing. That’s like your second year cs class
To be fair, the team at the time was all business majors. (Is “Computer Information Systems” what they call that degree most places or just at my alma mater?) I think I was the only computer science major there.
They’d done a surprisingly admirable job of cobbling together a working e-commerce, loss prevention, customer sercvice portal, orderfulfillment, and CMS suite. And their schooling was in, like, finance, MS Office, and maybe one semester on actual programming.
None of them had ever learned how to count in binary. Let alone been exposed to 2’s compliment. And there were no QA engineers.
Oh, there was the sysadmin. He had a temper and was a cowboy. If you asked him to do something, it’d be fuckin’ done, man. But you did not want to know how he made sausage. The boss asked him to set up a way for us to do code reviews and he installed Atlassian Fisheye/Crucible on a laptop under his desk. We used that for years. And a lot of the business logic of the customer-facing e-commerce site lived in the rewrite rules in the Apache config that only he had access to and no one else could decipher if they did have access.
Those were good times. Good times.
My school also had a major called “Computer Information Systems”. That was in the 90s. Do they still even offer that? Last I checked I didn’t see my school still offering that.
Oh yeah it’s still pretty popular actually. Maybe because people want to do more business side or less coding and math
I know a french degree that I would translate to Computer Information System in English but there is waay more computer science in it that what you described… I’m so glad I didn’t live thought the hardship of international studies!