Wingdings

One of my all-time favourite bugs I encountered as a Software Tester was when a printout was written in Wingdings font.

The developer had wanted to utilise the check/tick character ✔ from the font, so they had programmatically changed the font, then inserted the character. However, they didn’t add the code to reset the font back to normal, so the rest of the printout was also in Wingdings.

I do wonder how people manage to introduce such bugs, because surely you will notice it if you have tested it. The only exception is: if all your tests have scenarios where the Windings character is the final character on the printout.

I really thought it was a once-in-a-lifetime bug and I would never see the likes of Wingdings grace our system again. However, I was wrong, it happened recently with a project involving some document functionality enhancements. Luckily in both situations, the Wingdings bug never made it to the live environment since it was easily spotted by our Testers. 

I bet our users would have loved it more than I did (sarcastic, obviously).