SGDK Testing

Test the game's real update code with controlled inputs. Keep failures small enough to replay and explain what each check actually exercised. SGDK does not provide a game-replay or regression framework; the Lab's lab_* functions and JSON reports are example game code.

Choose the evidence you need

• Replay contracts: tick-indexed input, initial state, RNG ownership, bounded recording and explicit state checkpoints.
• Regression and automated QA: host and M68000 execution, report comparison, failure artifacts and reviewed baselines.
• PAL/NTSC and presentation: display schedules, input edges, pause, frame misses and emulator/hardware checks.
• Test Lab: a standalone seeded courier scene with reference playback, live recording and a deliberate regression switch.