# -*- coding: utf-8 -*- """M11b-2d-A3 契约守卫用例：函数式夹具契约 + 真源返回键齐全性。 来源 ==== 本文件由一次性调试探针 ``modules/world_sync/.m11b2d_probe.py``（3250B，随引擎代提交 ``13386a4`` 入库）改造而来——探针用 ``print`` 输出、无断言、不可重复判定，QC #4 要求 「要么删除、要么升级为正式守卫」。本文件即升级结果，探针本体已 ``git rm``。 守卫什么（三件事） ================== 1. **旧类式符号不再存在**：``RuntimeStateEventWriter`` / ``configure_writer`` / ``build_plan`` / 类式 ``write_event_with_state`` 不得再出现在夹具层 ``tests/_m11b2_compat`` 上（它们曾构成第二条夹具路径，把测试钉在已删除的调用形态上， 实测 22 failed）。 2. **新函数式符号可用**：夹具只保留一条路径——``install/uninstall/apply/read/ trace_kinds/update_statements/insert_statements`` + ``RuntimeEngine``，且真源本体 ``apply_runtime_event`` / ``read_states`` 经夹具直连（不是副本）。 3. **真源返回键齐全**：``apply`` 的返回值键集合**逐键断言**，不做任何增补（夹具 ``apply`` 只是 ``asyncio.run(apply_runtime_event(...))`` 的同步入口）。分支覆盖 成功写 / 幂等命中 / 乐观锁冲突 / 参数门禁 / 快照 / 提交后广播。 边界（遵守 QC #3 允许路径与本任务禁改清单） ========================================== * 不改业务实现、不改 ``pbl_runtime_ext/models/*.json``、不改 ``load_path.py``； * 不改 ``tests/_m11b2_compat.py`` 任何既有符号（只读引用）； * 不改 ``test_m11b2_single_tx.py`` / ``test_m11b2_wiring.py``（并行任务独占）； * 权威契约定义在 ``tests/_m11b2_compat.py`` 顶部 docstring 与 ``docs/work-log/``… 不，登记文档为 ``skill/SKILL.md`` 指向的 ``docs/work-log/m11b2d-fixture-contract.md``，本文件只做机械断言，不重复搬运说明。 夹具的 ``_default_clause`` 把 models 里 ``default: ""``（空串）当「无默认值」跳过， 于是 ``event_code`` 等「NOT NULL DEFAULT ''」列在 sqlite 侧成为无默认值的 NOT NULL 列， 真源 INSERT（按语义不填这些列）会撞约束。本文件与 ``test_m11b2_single_tx.py`` 同口径： **仅在构造期**临时补正空串默认值渲染，建完表立即还原，不改 compat 既有定义与行为语义。 """ import inspect import os import sys import unittest HERE = os.path.dirname(os.path.abspath(__file__)) sys.path.insert(0, HERE) sys.path.insert(0, os.path.dirname(HERE)) import _m11b2_compat as compat # noqa: E402 apply_runtime_event = compat.apply_runtime_event # pbl_runtime_ext.tx_write 真源本体 read_states = compat.read_states RtxError = compat.RtxError EVENT_TABLE = compat.EVENT_TABLE STATE_TABLE = compat.STATE_TABLE SNAPSHOT_TABLE = compat.SNAPSHOT_TABLE ERR_TENANT_MISSING = compat.ERR_TENANT_MISSING ERR_BAD_PARAM = compat.ERR_BAD_PARAM ERR_STATE_CONFLICT = compat.ERR_STATE_CONFLICT # 真源 tx_write.apply_runtime_event 成功分支的返回键（源码 tx_write.py:456-462 逐键抄录） FULL_RETURN_KEYS = { "ok", "dedup", "event_id", "event_uid", "seq", "seq_no", "cursor", "state_rows", "states", "latency_ms", "broadcast_ms", "channel", "sla_breach", "stmt_count", } # 幂等命中分支（源码 tx_write.py:383-389）：无 states/broadcast_ms/sla_breach/seq_no DEDUP_RETURN_KEYS = { "ok", "dedup", "event_id", "event_uid", "seq", "cursor", "state_rows", "latency_ms", "channel", "stmt_count", } # 真源 apply_runtime_event 形参（源码 tx_write.py:344-348），全部默认 None TRUE_SOURCE_PARAMS = [ "tenant_id", "world_id", "session_id", "event_type", "payload", "state_updates", "client_event_id", "idem_key", "snapshot", "base_version", "actor_id", "causation_id", "occurred_at", "env", ] # 夹具层禁止复活的旧类式符号 DEAD_CLASS_STYLE_SYMBOLS = [ "RuntimeStateEventWriter", "configure_writer", "build_plan", "write_event_with_state", ] # 夹具层必须存在的函数式入口 LIVE_FIXTURE_SYMBOLS = [ "RuntimeEngine", "install", "uninstall", "apply", "read", "trace_kinds", "update_statements", "insert_statements", "apply_runtime_event", "read_states", "build_row", "assert_append_only", "RtxError", "percentile", "EVENT_TABLE", "STATE_TABLE", "SNAPSHOT_TABLE", ] _ORIGIN_DEFAULT_CLAUSE = compat._default_clause def _default_clause_with_empty(fd): dv = fd.get("default") if isinstance(dv, str) and dv.strip() == "": return " DEFAULT ''" return _ORIGIN_DEFAULT_CLAUSE(fd) def make_engine(path=":memory:"): """真 sqlite 事务引擎（表结构仍由夹具从 pbl_runtime_ext/models/*.json 生成）。""" compat._default_clause = _default_clause_with_empty try: return compat.RuntimeEngine(path=path) finally: compat._default_clause = _ORIGIN_DEFAULT_CLAUSE def su(entity="e1", state=None): return {"entity_id": entity, "state": {"hp": 2} if state is None else state} class FixtureSurfaceCase(unittest.TestCase): """夹具面：旧符号已死、新符号可直连真源。""" def test_dead_class_style_symbols_absent(self): for name in DEAD_CLASS_STYLE_SYMBOLS: self.assertFalse( hasattr(compat, name), "夹具层不得复活旧类式符号 %s（第二条夹具路径 = M11b-2c 22 failed 根因）" % name) def test_live_function_style_symbols_present(self): for name in LIVE_FIXTURE_SYMBOLS: self.assertTrue(hasattr(compat, name), "夹具缺少函数式符号 %s" % name) self.assertTrue(callable(compat.install)) self.assertTrue(callable(compat.uninstall)) self.assertTrue(callable(compat.apply)) self.assertTrue(callable(compat.read)) def test_fixture_apply_is_thin_wrapper_on_true_source(self): """夹具 apply/read 不得自带实现——必须是真源的同步入口（零返回键增补）。""" self.assertIs(compat.apply_runtime_event, apply_runtime_event) src = inspect.getsource(compat.apply) self.assertIn("apply_runtime_event", src) self.assertNotIn("update(", src) # 不补键 self.assertNotIn("setdefault", src) self.assertNotIn("_augment", src) def test_true_source_signature(self): """真源逐参数签名钉死：形参名/顺序/默认值（文档 m11b2d-fixture-contract.md 同源）。""" spec = inspect.signature(apply_runtime_event) self.assertEqual(list(spec.parameters), TRUE_SOURCE_PARAMS) for name in TRUE_SOURCE_PARAMS: self.assertIsNone(spec.parameters[name].default, "形参 %s 默认值应为 None" % name) def test_read_states_signature(self): spec = inspect.signature(read_states) self.assertEqual(list(spec.parameters), ["tenant_id", "session_id", "entity_ids", "world_id", "env"]) class ReturnKeysCase(unittest.TestCase): """真源返回键齐全性（走夹具函数式路径，断言真值，不接受 print）。""" def setUp(self): self.eng = make_engine() compat.install(self.eng) self.addCleanup(compat.uninstall) def _apply(self, **kw): base = {"tenant_id": 7, "world_id": 1, "session_id": 11, "event_type": "unit.move", "payload": {"dx": 1}} base.update(kw) return compat.apply(**base) def test_success_return_keys_exact(self): r = self._apply(state_updates=[su()], client_event_id="ev-1", actor_id="u1") self.assertEqual(set(r.keys()), FULL_RETURN_KEYS) self.assertIs(r["ok"], True) self.assertIs(r["dedup"], False) self.assertIsNotNone(r["event_id"]) self.assertEqual(r["seq"], 1) self.assertEqual(r["seq_no"], r["seq"]) # 对外别名一致 self.assertEqual(r["state_rows"], 1) self.assertEqual(r["channel"], "pbl:rtx:w1:t7") self.assertIsInstance(r["stmt_count"], int) self.assertGreaterEqual(r["stmt_count"], 2) # 事件 INSERT + 状态 UPSERT self.assertIsInstance(r["states"], list) self.assertEqual(set(r["states"][0].keys()), {"entity_id", "state_version", "action", "state_key", "state_value", "seq"}) self.assertEqual(r["states"][0]["action"], "insert") self.assertEqual(r["states"][0]["state_version"], 1) def test_dedup_return_keys_exact_and_no_second_write(self): r1 = self._apply(state_updates=[su()], client_event_id="ev-1") r2 = self._apply(state_updates=[su(state={"hp": 9})], client_event_id="ev-1") self.assertEqual(set(r2.keys()), DEDUP_RETURN_KEYS) self.assertIs(r2["dedup"], True) self.assertEqual(r2["event_id"], r1["event_id"]) # 复用既有事件，不新写 self.assertEqual(r2["seq"], r1["seq"]) self.assertEqual(r2["state_rows"], 0) self.assertIsNone(r2["latency_ms"]) self.assertEqual(self.eng.count(EVENT_TABLE), 1) self.assertEqual(self.eng.count(STATE_TABLE), 1) self.assertEqual(len(self.eng.broadcasts), 1) # 幂等命中不重复广播 def test_read_states_rows_shape(self): self._apply(state_updates=[su()], client_event_id="ev-1") rows = compat.read(tenant_id=7, session_id=11) self.assertIsInstance(rows, list) self.assertEqual(len(rows), 1) row = rows[0] self.assertEqual(row["entity_id"], "e1") self.assertEqual(row["state"], {"hp": 2}) self.assertEqual(row["state_version"], 1) self.assertIn("checksum", row) self.assertIn("updated_at", row) def test_snapshot_writes_snapshot_table(self): r = self._apply(state_updates=[su(state={"hp": 5})], client_event_id="ev-4", snapshot={"reason": "join", "hp": 5}) self.assertEqual(set(r.keys()), FULL_RETURN_KEYS) self.assertEqual(self.eng.count(SNAPSHOT_TABLE), 1) def test_broadcast_strictly_after_commit(self): self._apply(state_updates=[su()], client_event_id="ev-1") kinds = compat.trace_kinds(self.eng) self.assertEqual(kinds[0], "BEGIN") self.assertIn("COMMIT", kinds) self.assertIn("BROADCAST", kinds) self.assertGreater(kinds.index("BROADCAST"), kinds.index("COMMIT"), "广播必须在事务提交之后（M11b-3 契约）") self.assertEqual(self.eng.broadcasts[0]["channel"], "pbl:rtx:w1:t7") self.assertEqual(self.eng.broadcasts[0]["event"]["event_type"], "unit.move") def test_event_table_is_append_only(self): """事件表只允许 INSERT：UPDATE 语句里不得出现事件表名。""" self._apply(state_updates=[su()], client_event_id="ev-1") self._apply(state_updates=[su(state={"hp": 3})], client_event_id="ev-2") for sql, _p in compat.update_statements(self.eng): self.assertNotIn(EVENT_TABLE.upper(), sql.upper(), "事件表出现 UPDATE 语句，违反 append-only：%s" % sql) inserts = compat.insert_statements(self.eng, EVENT_TABLE) self.assertEqual(len(inserts), 2) for sql, _p in inserts: self.assertIn(EVENT_TABLE.upper(), sql.upper()) class GateErrorCase(unittest.TestCase): """参数门禁与乐观锁冲突：必须抛 RtxError 且 code 精确、事务回滚不留脏行。""" def setUp(self): self.eng = make_engine() compat.install(self.eng) self.addCleanup(compat.uninstall) def _expect(self, code, **kw): base = {"tenant_id": 7, "world_id": 1, "session_id": 11, "event_type": "x", "payload": {}} base.update(kw) with self.assertRaises(RtxError) as ctx: compat.apply(**base) self.assertEqual(ctx.exception.code, code) return ctx.exception def test_missing_tenant_is_fail_closed(self): self._expect(ERR_TENANT_MISSING, tenant_id=None) self.assertEqual(self.eng.count(EVENT_TABLE), 0) def test_missing_required_params(self): for key in ("world_id", "session_id", "event_type"): self._expect(ERR_BAD_PARAM, **{key: None}) self.assertEqual(self.eng.count(EVENT_TABLE), 0) def test_bad_state_updates(self): self._expect(ERR_BAD_PARAM, state_updates="notalist") self._expect(ERR_BAD_PARAM, state_updates=[{"state": {"a": 1}}]) # 缺 entity_id self._expect(ERR_BAD_PARAM, state_updates=[{"entity_id": "e1"}]) # 缺 state self.assertEqual(self.eng.count(STATE_TABLE), 0) def test_state_conflict_rolls_back(self): compat.apply(tenant_id=7, world_id=1, session_id=11, event_type="unit.move", payload={}, state_updates=[su()], client_event_id="ev-1") before_evt = self.eng.count(EVENT_TABLE) before_state = self.eng.count(STATE_TABLE) self._expect(ERR_STATE_CONFLICT, event_type="x", state_updates=[su(state={"hp": 0})], client_event_id="ev-3", base_version=999) kinds = compat.trace_kinds(self.eng) self.assertEqual(kinds[-1], "ROLLBACK", "冲突分支必须回滚，不得 COMMIT") self.assertEqual(self.eng.count(EVENT_TABLE), before_evt) self.assertEqual(self.eng.count(STATE_TABLE), before_state) if __name__ == "__main__": unittest.main(verbosity=2)