# tests/ Test suites grouped by responsibility. - API: `test_api.py` - Environment core: `test_env.py`, `test_tasks.py`, `test_graders.py` - Models: `test_models.py` - RL wrappers/features: `test_feature_builder.py`, `test_action_mask.py`, `test_gym_wrapper.py`, `test_curriculum.py` - Recurrent RL helpers: `test_rl_evaluate.py` - Baseline reproducibility: `test_baseline_repro.py`