I just wrote a #test which didn't improve my code's #TestCoverage but was absolutely vital, and which many people don't bother with. I'm writing code to generate a report. I've got copious tests that make sure the reports contain all the correct info. I added a test that they don't include wrong info. Test that your code does what you want, but also test that it doesn't do what you don't want. #NegativeTesting can find very nasty bugs.

Ex-employee claims #Facebook apps can purposefully drain your phone's battery

Lawsuit outlines the practice of so-called '#NegativeTesting' by Facebook.

If you've ever noticed your battery draining abnormally fast while using the Facebook or Messenger app on your iPhone, it might not be a coincidence. According to a former Meta data scientist, the company has the ability to secretly drain users’ #Android and #iPhone batteries as part of its internal app testing.

https://www.macworld.com/article/1488009/facebook-apps-negative-testing-battery-drain.html

#facebook fires worker who refused to do 'negative testing': 'worker claims in lawsuit

“I said to the manager, ‘This can harm somebody,’ and she said by harming a few we can help the greater masses,” said Hayward, 33, who claims in a Manhattan Federal Court lawsuit that he was fired in November for refusing to participate in negative testing
#negativetesting #lawsuit

https://nypost.com/2023/01/28/facebook-fires-worker-who-refused-to-do-negative-testing-awsuit/

Ein Ex-Mitarbeiter von #Meta behauptet, dass der #Facebook Messenger in bestimmten Fällen gezielt den Akku eures Handys leersaugt.

#NegativeTesting

https://www.netzwelt.de/news/213258-ex-meta-mitarbeiter-packt-macht-facebook-unseren-handy-akkus.html