GodopuandClaude Opus 5
803ba43884
The gate does not re-decide anything. Phase 2a already decides, fail-closed and against contract-pinned vectors; this supplies real evidence to that decision and commits only if three independent gates agree: the global switch is on, the backend has observed evidence that it reaches a quiescent state, and the job itself opted in. Default is off. The backend allowlist is evidence-based rather than optimistic. Inferring "finished" from stillness requires stillness to have been observed, and only three of six backends have that. An operator may narrow the list; a name that was never observed is dropped rather than trusted, so it cannot be widened by configuration. Everything else holds. An unreadable manifest, a report rewritten after finalization, missing evidence for a declared side effect, a policy that raises: all refuse. "Could not decide" is never "done". A late explicit terminal wins, because the boundary refuses the inferred one -- that is the boundary working, not an error in the gate. Notification intent is committed in the same atomic write as the state, so a crash between committing and publishing leaves a record that still says the world has not been told. Recovery re-sends; duplicates are already dropped by sequence. A failed send deliberately leaves the intent pending, because an unsent notification that looks sent is worse than one that is retried. Two fixes this surfaced. Settling used a request that terminal records refuse, which made an owed notification impossible to ever settle; settling is now a status-free bookkeeping request, valid in any state. And the phase 2a guard against shell references was matching hashlib.sha256 as a substring, so it now requires a word boundary. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01UrDNJkHmm18uu7n7JwV5Qd
520 lines
22 KiB
Python
520 lines
22 KiB
Python
#!/usr/bin/env python3
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"""Issue #5 Phase 2b — flag-gated auto-completion.
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Characterize first, as in 2a: the interesting property here is what the system
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*refuses* to do, so the refusals are pinned before anything is added that could
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weaken them.
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Sections
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1. X-01..X-05 the fail-closed preconditions as they stand today.
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2. finalize the completion manifest: written by the agent, re-derived here.
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3. autocomplete the gate, and everything that must stop it.
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4. notifier durable pending notification and restart recovery.
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5. flags default off, evidence-backed allowlist, per-job opt-in.
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"""
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from __future__ import annotations
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import hashlib
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import json
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import os
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import subprocess
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import sys
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from pathlib import Path
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import pytest
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REPO_ROOT = Path(__file__).resolve().parent.parent
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SKILLS = REPO_ROOT / ".agents" / "skills"
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WATCHER_FIXTURES = REPO_ROOT / "tests" / "fixtures" / "issue_5" / "watcher"
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def _reg(tmp_path) -> str:
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d = tmp_path / ".mam" / "jobs"
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d.mkdir(parents=True, exist_ok=True)
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return str(d)
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def _make_job(registry_dir, **over):
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from lib_py.delegation import registry
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return registry.register_job(over.pop("prompt", "p"), registry_dir=registry_dir, **over)
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def _load(registry_dir, job_id):
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from lib_py.delegation import mqtt_common
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return mqtt_common.load_job(job_id, registry_dir)
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def _fingerprint(path: Path) -> dict:
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out = {}
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for p in sorted(Path(path).rglob("*")):
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if p.is_file():
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out[str(p.relative_to(path))] = hashlib.sha256(p.read_bytes()).hexdigest()
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return out
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def _scenario(name="finalized_candidate"):
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return json.loads((WATCHER_FIXTURES / (name + ".json")).read_text(encoding="utf-8"))
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@pytest.fixture(autouse=True)
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def _default_flags(monkeypatch):
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"""Auto-completion is off unless a test turns it on. That is the product
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default too, and every test that does not opt in is therefore also a check
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that the default really is off."""
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monkeypatch.delenv("MAM_AUTO_COMPLETE", raising=False)
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monkeypatch.delenv("MAM_AUTO_COMPLETE_BACKENDS", raising=False)
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monkeypatch.setenv("MAM_ENGINE_CAS", "1")
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# ==============================================================================
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# 1. X-01..X-05 — the fail-closed preconditions, before anything is added
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# ==============================================================================
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def test_x01_a_job_without_a_manifest_is_never_approved():
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"""The property that makes unsupported agents safe without any new branch."""
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import copy
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from lib_py.loop import policy
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scenario = _scenario()
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assert policy.decide(scenario).decision == "candidate_approved"
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stripped = copy.deepcopy(scenario)
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for item in stripped["timeline"]:
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(item.get("payload") or {}).pop("report_manifest", None)
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stripped["filesystem"]["manifest_committed"] = False
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decision = policy.decide(stripped)
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assert decision.decision == "hold" and "manifest" in decision.reason
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def test_x02_no_production_code_writes_a_completion_manifest_yet():
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"""Pins the starting point: the protocol is entirely new in phase 2b."""
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hits = []
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for path in sorted((SKILLS / "lib_py").rglob("*.py")):
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if path.name in ("finalize.py", "autocomplete.py"):
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continue
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text = path.read_text(encoding="utf-8")
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if "report-manifest" in text:
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hits.append(path.name)
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assert not hits, "manifest writers already exist: {}".format(hits)
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def test_x03_the_record_carries_iteration_not_an_attempt_id(mam_sandbox, tmp_path, monkeypatch):
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"""Why auto-completion does not use the engine's expected_attempt.
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The engine compares expected_attempt against `attempt_id` falling back to
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`iteration`. A record has only the latter, and the two mean different things,
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so the attempt guard is applied where attempt identity actually lives: the
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dispatch record in the shadow store, compared against observed evidence."""
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monkeypatch.chdir(mam_sandbox)
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reg = _reg(tmp_path)
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job_id = _make_job(reg)
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record = _load(reg, job_id)
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assert "iteration" in record
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assert "attempt_id" not in record, (
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"if this ever changes, revisit the layering decision in the phase 2b report"
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)
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def test_x04_policy_rejects_evidence_from_a_superseded_attempt():
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"""The attempt guard that auto-completion actually relies on."""
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import copy
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from lib_py.loop import policy
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scenario = _scenario()
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superseded = copy.deepcopy(scenario)
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superseded["dispatch_context"]["attempt_id"] = 2 # evidence still says 1
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decision = policy.decide(superseded)
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assert decision.decision == "hold" and "attempt_id" in decision.reason
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def test_x05_the_explicit_event_path_is_untouched_by_default(mam_sandbox, tmp_path, monkeypatch):
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"""An explicitly completed job looks exactly as it always did."""
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monkeypatch.chdir(mam_sandbox)
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from lib_py.delegation import mqtt_common
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reg = _reg(tmp_path)
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job_id = _make_job(reg)
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mqtt_common.update_job_status(job_id, reg, _source="publish_event", status="running")
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mqtt_common.update_job_status(job_id, reg, _source="publish_event", status="completed")
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record = _load(reg, job_id)
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assert record["status"] == "completed"
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assert "completed_by" not in record, "an explicit completion carries no auto marker"
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# ==============================================================================
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# 2. finalize — declared by the agent, re-derived by the reader
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# ==============================================================================
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def _report(tmp_path, body="done\n", staged=False):
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d = tmp_path / "claude-reports"
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d.mkdir(parents=True, exist_ok=True)
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path = d / "report-final.md"
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(path.with_name(path.name + ".tmp") if staged else path).write_text(body, encoding="utf-8")
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return path
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def test_finalize_promotes_a_staged_report_atomically(tmp_path):
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"""A reader must never see a half-written report as finalized."""
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from lib_py.loop import finalize
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path = _report(tmp_path, "final body\n", staged=True)
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assert not path.exists() and path.with_name(path.name + ".tmp").exists()
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manifest = finalize.finalize_report(path, "job1", 1)
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assert path.exists() and not path.with_name(path.name + ".tmp").exists()
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assert manifest["sha256"] == finalize.sha256_of(path)
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def test_finalize_verifies_against_the_file_not_the_declaration(tmp_path):
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"""The hash is recomputed, so a forged manifest cannot certify itself."""
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from lib_py.loop import finalize
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path = _report(tmp_path)
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finalize.finalize_report(path, "job1", 1)
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assert finalize.verify_manifest(path.parent, "job1").ok
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manifest_file = finalize.manifest_in(path.parent)
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forged = json.loads(manifest_file.read_text(encoding="utf-8"))
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forged["sha256"] = "0" * 64
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manifest_file.write_text(json.dumps(forged), encoding="utf-8")
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verdict = finalize.verify_manifest(path.parent, "job1")
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assert not verdict.ok and "changed after finalization" in verdict.reason
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def test_finalize_is_invalidated_by_a_rewritten_report(tmp_path):
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"""A new body needs a new finalization; the old hash is void immediately."""
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from lib_py.loop import finalize
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path = _report(tmp_path, "first\n")
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finalize.finalize_report(path, "job1", 1)
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assert finalize.verify_manifest(path.parent, "job1").ok
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path.write_text("rewritten\n", encoding="utf-8")
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verdict = finalize.verify_manifest(path.parent, "job1")
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assert not verdict.ok and "changed after finalization" in verdict.reason
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@pytest.mark.parametrize("kwargs,fragment", [
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({"job_id": "other"}, "belongs to job"),
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({"expected_attempt": 9}, "belongs to attempt"),
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])
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def test_finalize_rejects_a_manifest_for_a_different_job_or_attempt(tmp_path, kwargs, fragment):
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from lib_py.loop import finalize
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path = _report(tmp_path)
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finalize.finalize_report(path, "job1", 1)
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args = {"job_id": "job1"}
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args.update(kwargs)
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verdict = finalize.verify_manifest(path.parent, **args)
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assert not verdict.ok and fragment in verdict.reason
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def test_finalize_requires_evidence_for_every_declared_side_effect(tmp_path):
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"""Partial evidence is no evidence: the work is not known to be complete."""
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from lib_py.loop import finalize
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path = _report(tmp_path)
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finalize.finalize_report(path, "job1", 1,
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side_effects=finalize.parse_side_effects(["git_push=abc123"]))
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ok = finalize.verify_manifest(path.parent, "job1", expected_artifacts=["git_push"])
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assert ok.ok
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missing = finalize.verify_manifest(path.parent, "job1",
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expected_artifacts=["git_push", "api_call"])
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assert not missing.ok and "api_call" in missing.reason
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def test_finalize_rejects_a_malformed_side_effect_pair():
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from lib_py.loop import finalize
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with pytest.raises(ValueError):
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finalize.parse_side_effects(["nokey"])
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with pytest.raises(ValueError):
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finalize.parse_side_effects(["kind="])
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def test_finalize_missing_manifest_is_a_refusal_not_a_crash(tmp_path):
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from lib_py.loop import finalize
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d = tmp_path / "empty"
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d.mkdir()
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verdict = finalize.verify_manifest(d, "job1")
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assert not verdict.ok and "no completion manifest" in verdict.reason
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def test_publish_event_finalizes_before_it_publishes(mam_sandbox, tmp_path, monkeypatch):
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"""The CLI surface an agent actually calls."""
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monkeypatch.chdir(mam_sandbox)
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from lib_py.delegation import publish_event
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from lib_py.loop import finalize
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reg = _reg(tmp_path)
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job_id = _make_job(reg)
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record = _load(reg, job_id)
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record["broker"] = {"host": "127.0.0.1", "port": 65432, "tls": False}
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Path(reg, job_id + ".json").write_text(json.dumps(record), encoding="utf-8")
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path = _report(tmp_path, "the report\n", staged=True)
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rc = publish_event.main([
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"--registry-dir", reg, "--job", job_id, "--event", "completed",
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"--attempts", "1", "--finalize-report", str(path),
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"--side-effect", "git_push=deadbeef",
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])
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assert rc == 2, "the broker is unreachable, but finalization still happened"
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assert path.exists(), "the staged report was promoted"
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verdict = finalize.verify_manifest(path.parent, job_id)
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assert verdict.ok
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assert verdict.manifest["side_effects"][0]["kind"] == "git_push"
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def test_publish_event_reports_a_bad_side_effect_instead_of_publishing(mam_sandbox, tmp_path, monkeypatch):
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monkeypatch.chdir(mam_sandbox)
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from lib_py.delegation import publish_event
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reg = _reg(tmp_path)
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job_id = _make_job(reg)
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path = _report(tmp_path)
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rc = publish_event.main([
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"--registry-dir", reg, "--job", job_id, "--event", "completed",
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"--finalize-report", str(path), "--side-effect", "malformed",
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])
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assert rc == 1
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# ==============================================================================
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# 3. autocomplete — the gate, and everything that must stop it
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# ==============================================================================
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def _ready_job(tmp_path, mam_sandbox, *, backend="claude-code", opt_in=True,
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artifacts=None, body="report\n"):
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"""A job in exactly the state that should auto-complete, plus its evidence."""
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from lib_py.loop import finalize, store
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reg = _reg(tmp_path)
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job_id = _make_job(reg, agent=backend, expected_artifacts=artifacts or [])
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from lib_py.delegation import engine
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engine.transition(job_id, "claim", registry_dir=reg)
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if opt_in:
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engine.transition(job_id, "progress", registry_dir=reg,
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fields={"auto_complete": True})
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scenario = _scenario()
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dispatch = scenario["dispatch_context"]
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dispatch["job_id"] = job_id
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for item in scenario["timeline"]:
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env = item.get("collector_attribution")
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if env:
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env["job_id"] = job_id
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# A non-herdr payload is a legitimate identifier source, so it has to
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# agree too. Leaving the fixture's original id here is a contradiction,
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# and the policy correctly refuses it.
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payload = item.get("payload") or {}
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if item.get("source_kind") != "herdr" and "job_id" in payload:
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payload["job_id"] = job_id
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store.record_dispatch(job_id, dispatch["attempt_id"], dispatch["agent_session_uuid"],
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dispatch["pane_process_generation"], workspace=str(mam_sandbox))
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store.mark_execution_anchor(job_id, workspace=str(mam_sandbox))
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report = _report(tmp_path, body)
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finalize.finalize_report(report, job_id, dispatch["attempt_id"],
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side_effects=finalize.parse_side_effects(
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["{}=ref".format(a) for a in (artifacts or [])]))
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return job_id, reg, scenario, report.parent
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def test_gate_commits_when_every_condition_holds(mam_sandbox, tmp_path, monkeypatch):
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monkeypatch.chdir(mam_sandbox)
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monkeypatch.setenv("MAM_AUTO_COMPLETE", "1")
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from lib_py.loop import autocomplete
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job_id, reg, scenario, report_dir = _ready_job(tmp_path, mam_sandbox)
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result = autocomplete.evaluate(job_id, scenario, registry_dir=reg,
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workspace=str(mam_sandbox), report_dir=report_dir)
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assert result.committed, result.reason
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record = _load(reg, job_id)
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assert record["status"] == "completed"
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assert record["completed_by"] == "auto_complete", "an inferred terminal must be marked"
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assert record["pending_notification"]["event"] == "completed"
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def test_g4_default_off_commits_nothing_and_leaves_the_registry_untouched(
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mam_sandbox, tmp_path, monkeypatch
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):
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"""G4: with the flag unset, the registry must not change at all."""
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monkeypatch.chdir(mam_sandbox)
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from lib_py.loop import autocomplete
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job_id, reg, scenario, report_dir = _ready_job(tmp_path, mam_sandbox)
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before = _fingerprint(Path(reg))
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result = autocomplete.evaluate(job_id, scenario, registry_dir=reg,
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workspace=str(mam_sandbox), report_dir=report_dir)
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assert result.committed is False
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assert "disabled" in result.reason
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assert _fingerprint(Path(reg)) == before, "the default must write nothing"
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@pytest.mark.parametrize("backend", ["agy", "hermes", "opencode", "unknown-agent"])
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def test_g9_a_backend_without_quiescence_evidence_never_auto_completes(
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mam_sandbox, tmp_path, monkeypatch, backend
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):
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"""Inferring 'finished' from stillness needs stillness to have been observed."""
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monkeypatch.chdir(mam_sandbox)
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monkeypatch.setenv("MAM_AUTO_COMPLETE", "1")
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from lib_py.loop import autocomplete
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job_id, reg, scenario, report_dir = _ready_job(tmp_path, mam_sandbox, backend=backend)
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result = autocomplete.evaluate(job_id, scenario, registry_dir=reg,
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workspace=str(mam_sandbox), report_dir=report_dir)
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assert result.committed is False and "quiescent-state evidence" in result.reason
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assert _load(reg, job_id)["status"] == "running"
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def test_the_allowlist_can_be_narrowed_but_never_widened(monkeypatch):
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from lib_py.loop import autocomplete
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monkeypatch.setenv("MAM_AUTO_COMPLETE_BACKENDS", "claude")
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assert autocomplete.allowed_backends() == ("claude",)
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monkeypatch.setenv("MAM_AUTO_COMPLETE_BACKENDS", "claude,hermes,opencode")
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assert autocomplete.allowed_backends() == ("claude",), "unobserved backends are dropped"
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def test_a_job_that_did_not_opt_in_is_not_auto_completed(mam_sandbox, tmp_path, monkeypatch):
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monkeypatch.chdir(mam_sandbox)
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monkeypatch.setenv("MAM_AUTO_COMPLETE", "1")
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from lib_py.loop import autocomplete
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job_id, reg, scenario, report_dir = _ready_job(tmp_path, mam_sandbox, opt_in=False)
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result = autocomplete.evaluate(job_id, scenario, registry_dir=reg,
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workspace=str(mam_sandbox), report_dir=report_dir)
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assert result.committed is False and "opt in" in result.reason
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def test_g5_a_rewritten_report_stops_the_gate(mam_sandbox, tmp_path, monkeypatch):
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"""G5: the manifest is checked against the file, so a late edit disqualifies."""
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monkeypatch.chdir(mam_sandbox)
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monkeypatch.setenv("MAM_AUTO_COMPLETE", "1")
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from lib_py.loop import autocomplete
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job_id, reg, scenario, report_dir = _ready_job(tmp_path, mam_sandbox)
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(report_dir / "report-final.md").write_text("rewritten after finalization\n", encoding="utf-8")
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result = autocomplete.evaluate(job_id, scenario, registry_dir=reg,
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workspace=str(mam_sandbox), report_dir=report_dir)
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assert result.committed is False and "changed after finalization" in result.reason
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assert _load(reg, job_id)["status"] == "running"
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def test_g5_missing_side_effect_evidence_stops_the_gate(mam_sandbox, tmp_path, monkeypatch):
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monkeypatch.chdir(mam_sandbox)
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monkeypatch.setenv("MAM_AUTO_COMPLETE", "1")
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from lib_py.loop import autocomplete, finalize
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job_id, reg, scenario, report_dir = _ready_job(tmp_path, mam_sandbox,
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|
artifacts=["git_push"])
|
|
# re-declare without the evidence the job said it would produce
|
|
finalize.finalize_report(report_dir / "report-final.md", job_id, 1, side_effects=[])
|
|
result = autocomplete.evaluate(job_id, scenario, registry_dir=reg,
|
|
workspace=str(mam_sandbox), report_dir=report_dir)
|
|
assert result.committed is False and "git_push" in result.reason
|
|
|
|
|
|
def test_d7_a_policy_that_cannot_decide_holds(mam_sandbox, tmp_path, monkeypatch):
|
|
"""'Could not decide' is never 'done'."""
|
|
monkeypatch.chdir(mam_sandbox)
|
|
monkeypatch.setenv("MAM_AUTO_COMPLETE", "1")
|
|
from lib_py.loop import autocomplete, policy
|
|
|
|
job_id, reg, scenario, report_dir = _ready_job(tmp_path, mam_sandbox)
|
|
|
|
def explode(_scenario):
|
|
raise RuntimeError("evidence is contradictory")
|
|
|
|
monkeypatch.setattr(policy, "decide", explode)
|
|
result = autocomplete.evaluate(job_id, scenario, registry_dir=reg,
|
|
workspace=str(mam_sandbox), report_dir=report_dir)
|
|
assert result.committed is False and "policy error" in result.reason
|
|
assert _load(reg, job_id)["status"] == "running"
|
|
|
|
|
|
def test_a_late_explicit_terminal_beats_the_gate(mam_sandbox, tmp_path, monkeypatch):
|
|
"""If the agent already reported, the boundary refuses and that is correct."""
|
|
monkeypatch.chdir(mam_sandbox)
|
|
monkeypatch.setenv("MAM_AUTO_COMPLETE", "1")
|
|
from lib_py.delegation import mqtt_common
|
|
from lib_py.loop import autocomplete
|
|
|
|
job_id, reg, scenario, report_dir = _ready_job(tmp_path, mam_sandbox)
|
|
mqtt_common.update_job_status(job_id, reg, _source="publish_event", status="error")
|
|
result = autocomplete.evaluate(job_id, scenario, registry_dir=reg,
|
|
workspace=str(mam_sandbox), report_dir=report_dir)
|
|
assert result.committed is False
|
|
record = _load(reg, job_id)
|
|
assert record["status"] == "error", "the explicit report wins"
|
|
assert "completed_by" not in record
|
|
|
|
|
|
# ==============================================================================
|
|
# 4. notifier — the intent is durable, and recovery re-sends it
|
|
# ==============================================================================
|
|
|
|
def test_the_notification_intent_is_committed_with_the_state(mam_sandbox, tmp_path, monkeypatch):
|
|
monkeypatch.chdir(mam_sandbox)
|
|
from lib_py.delegation import engine, notifier
|
|
|
|
reg = _reg(tmp_path)
|
|
job_id = _make_job(reg)
|
|
engine.transition(job_id, "claim", registry_dir=reg)
|
|
engine.transition(job_id, "completed", registry_dir=reg, notify="completed")
|
|
record = _load(reg, job_id)
|
|
assert record["status"] == "completed"
|
|
intent = notifier.pending(job_id, reg)
|
|
assert intent and intent["event"] == "completed" and intent["seq"] == record["transition_seq"]
|
|
|
|
|
|
def test_flush_publishes_then_settles(mam_sandbox, tmp_path, monkeypatch):
|
|
monkeypatch.chdir(mam_sandbox)
|
|
from lib_py.delegation import engine, notifier
|
|
|
|
reg = _reg(tmp_path)
|
|
job_id = _make_job(reg)
|
|
engine.transition(job_id, "claim", registry_dir=reg)
|
|
engine.transition(job_id, "completed", registry_dir=reg, notify="completed")
|
|
|
|
sent = []
|
|
assert notifier.flush(job_id, reg, publish=lambda j, i, r: sent.append(i) or 0)
|
|
assert len(sent) == 1 and sent[0]["event"] == "completed"
|
|
assert notifier.pending(job_id, reg) is None
|
|
# settling is idempotent: a second flush has nothing to do
|
|
assert notifier.flush(job_id, reg, publish=lambda *a: 1 / 0)
|
|
|
|
|
|
def test_a_failed_send_leaves_the_intent_pending(mam_sandbox, tmp_path, monkeypatch):
|
|
"""An unsent notification that looks sent is worse than one that is retried."""
|
|
monkeypatch.chdir(mam_sandbox)
|
|
from lib_py.delegation import engine, notifier
|
|
|
|
reg = _reg(tmp_path)
|
|
job_id = _make_job(reg)
|
|
engine.transition(job_id, "claim", registry_dir=reg)
|
|
engine.transition(job_id, "completed", registry_dir=reg, notify="completed")
|
|
|
|
assert notifier.flush(job_id, reg, publish=lambda *a: 2) is False
|
|
assert notifier.pending(job_id, reg) is not None
|
|
assert notifier.flush(job_id, reg, publish=lambda *a: (_ for _ in ()).throw(OSError())) is False
|
|
assert notifier.pending(job_id, reg) is not None
|
|
assert _load(reg, job_id)["status"] == "completed", "the state stays committed regardless"
|
|
|
|
|
|
def test_g7_restart_recovery_resends_every_owed_notification(mam_sandbox, tmp_path, monkeypatch):
|
|
"""G7: the crash window between committing and publishing."""
|
|
monkeypatch.chdir(mam_sandbox)
|
|
from lib_py.delegation import engine, notifier
|
|
|
|
reg = _reg(tmp_path)
|
|
owed = []
|
|
for _ in range(3):
|
|
job_id = _make_job(reg)
|
|
engine.transition(job_id, "claim", registry_dir=reg)
|
|
engine.transition(job_id, "completed", registry_dir=reg, notify="completed")
|
|
owed.append(job_id)
|
|
settled = _make_job(reg)
|
|
engine.transition(settled, "claim", registry_dir=reg)
|
|
|
|
assert sorted(notifier.jobs_with_pending(reg)) == sorted(owed)
|
|
|
|
sent = []
|
|
results = notifier.recover(reg, publish=lambda j, i, r: sent.append(j) or 0)
|
|
assert all(results.values()) and sorted(sent) == sorted(owed)
|
|
assert notifier.jobs_with_pending(reg) == [], "nothing is owed after recovery"
|