These tests are doing a simple read/write operations on the device to see if the hardware can endure high number of flash writes. Meant to be run on the device directly for a long period of time.
Click tests are a next-generation of the Device tests. The tests are quite similar, but they are capable of imitating user's interaction with the screen.
These tests test upgrade from one firmware version to another. They initialize an emulator on some specific version and then pass its storage to another version to see if the firmware operates as expected. They use fixtures from https://firmware.corp.sldev.cz/upgrade_tests/ which can be downloaded using the `download_emulators.sh` script.
See the [README](upgrade_tests/README.md) for instructions how to run it.
These tests test the Persistence mode, which is currently used in the device recovery. These tests launch the emulator themselves and they are capable of restarting or stopping it simulating user's plugging in or plugging out the device.