My optimal-solver tests all passed for a solver that was not optimal
Eight green tests, including two property tests. Every one of them also passed a stub that returned any valid answer.
Testing
testing
Seeding SharedPreferences on an Android emulator with adb run-as (and the three ways it fails)
To screenshot a game-over screen that needs three finished rounds and a two-day streak, write the prefs XML through adb run-as — via stdin, after force-stop.