- Turning on [verbose test output](https://github.com/adbancroft/ArduinoFake/commit/abb55213af141607133d3b200d2b79eb551edd3a) will [show the failure](https://github.com/adbancroft/ArduinoFake/actions/runs/18040282943/job/51337111336#step:3:140). - Changing `test/main.cpp` to [return the number of failing tests](https://github.com/adbancroft/ArduinoFake/commit/77af8d9d5d6bfe0c0b1373e11873a8a96bf40a6c) causes the [CI unit tests to fail](https://github.com/adbancroft/ArduinoFake/actions/runs/18107424792/job/51525330685#step:3:188).