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from __future__ import annotations
import hashlib
import subprocess
from pathlib import Path
import pytest
from nexum_runtime.tooling.engineering import (
DisclosureStore,
PatchStore,
ReproductionStore,
TriageStore,
)
def _run_command(
command: str, workdir: str, timeout_s: float
) -> tuple[bool, str, str, int | None]:
completed = subprocess.run(
command,
shell=True,
cwd=workdir,
capture_output=True,
text=True,
timeout=timeout_s,
check=False,
)
return (
completed.returncode == 0,
completed.stdout,
completed.stderr,
completed.returncode,
)
def _chain(tmp_path: Path) -> tuple[PatchStore, str, str]:
workspace = tmp_path
(workspace / "app.txt").write_text("before\n", encoding="utf-8")
session = "proof-session"
reproductions = ReproductionStore(workspace)
reproduction, _stdout, _stderr = reproductions.run(
command="grep -q before app.txt",
working_directory=".",
snapshot_paths=("app.txt",),
timeout_s=30.0,
session_id=session,
run_command=_run_command,
)
assert reproduction.exit_code == 0
triage = TriageStore(workspace).create(
reproduction_ids=(reproduction.reproduction_id,),
observed_facts=("the file contains the reproduced value",),
hypotheses=("the value requires a verified update",),
severity="low",
confidence=0.9,
next_actions=("apply an exact-state patch and verify",),
session_id=session,
)
patches = PatchStore(workspace)
patch = patches.begin(
triage_id=triage.triage_id, paths=("app.txt",), session_id=session
)
expected = hashlib.sha256(b"before\n").hexdigest()
patch, error = patches.apply(
patch.patch_id,
(
{
"operation": "replace",
"path": "app.txt",
"expected_sha256": expected,
"old_text": "before",
"new_text": "after",
},
),
session_id=session,
)
assert not error
patch, verification, _out, _err = patches.verify(
patch.patch_id,
command="grep -q after app.txt",
working_directory=".",
timeout_s=30.0,
session_id=session,
run_command=_run_command,
)
assert patch.status == "verified"
assert verification.exit_code == 0
patch = patches.commit(patch.patch_id, session_id=session)
assert patch.status == "committed"
return patches, patch.patch_id, triage.triage_id
def test_rollback_binds_restoration_proof(tmp_path: Path) -> None:
patches, patch_id, _triage_id = _chain(tmp_path)
rolled_back = patches.rollback(patch_id, session_id="proof-session")
assert rolled_back.status == "rolled_back"
assert rolled_back.restoration_sha256
restored_digest = hashlib.sha256(
(tmp_path / "app.txt").read_bytes()
).hexdigest()
assert restored_digest == hashlib.sha256(b"before\n").hexdigest()
reloaded = patches.get(patch_id, session_id="proof-session")
assert reloaded.restoration_sha256 == rolled_back.restoration_sha256
reproduction, _stdout, _stderr = ReproductionStore(tmp_path).run(
command="grep -q before app.txt",
working_directory=".",
snapshot_paths=("app.txt",),
timeout_s=30.0,
session_id="proof-session",
run_command=_run_command,
)
assert reproduction.exit_code == 0
def test_public_disclosure_requires_verified_patch(tmp_path: Path) -> None:
patches, patch_id, triage_id = _chain(tmp_path)
disclosures = DisclosureStore(tmp_path)
record = disclosures.create(
triage_id=triage_id,
title="Verified correction",
summary="A reproduced value was changed through an exact-state transaction.",
impact="The workspace carries the verified value.",
remediation="Retain the verification receipt.",
audience="public",
patch_id=patch_id,
session_id="proof-session",
)
assert record.artifact_sha256
patches.rollback(patch_id, session_id="proof-session")
with pytest.raises(ValueError, match="verified or committed"):
disclosures.create(
triage_id=triage_id,
title="Rolled back state",
summary="The patch was rolled back.",
impact="No verified repair remains.",
remediation="Re-apply and verify before disclosure.",
audience="public",
patch_id=patch_id,
session_id="proof-session",
)
maintainer = disclosures.create(
triage_id=triage_id,
title="Internal note",
summary="Rollback was proven against original snapshots.",
impact="Original bytes restored.",
remediation="None required.",
audience="maintainer",
patch_id="",
session_id="proof-session",
)
assert maintainer.disclosure_id.startswith("dis_")
def test_public_disclosure_rejects_state_drift_after_verification(
tmp_path: Path,
) -> None:
_patches, patch_id, triage_id = _chain(tmp_path)
disclosures = DisclosureStore(tmp_path)
(tmp_path / "app.txt").write_text("drifted\n", encoding="utf-8")
with pytest.raises(RuntimeError, match="changed after patch verification"):
disclosures.create(
triage_id=triage_id,
title="Stale repair",
summary="The covered files changed after verification.",
impact="The prior verification no longer describes current bytes.",
remediation="Re-verify the exact current state before disclosure.",
audience="public",
patch_id=patch_id,
session_id="proof-session",
)
def test_triage_status_exposes_bound_reproduction_evidence(tmp_path: Path) -> None:
workspace = tmp_path
(workspace / "state.txt").write_text("one\n", encoding="utf-8")
reproductions = ReproductionStore(workspace)
first, _stdout, _stderr = reproductions.run(
command="printf two > state.txt",
working_directory=".",
snapshot_paths=("state.txt",),
timeout_s=30.0,
session_id="proof-session",
run_command=_run_command,
)
triage_store = TriageStore(workspace)
triage = triage_store.create(
reproduction_ids=(first.reproduction_id,),
observed_facts=("the command rewrote the file",),
hypotheses=("state drift is contained",),
severity="informational",
confidence=0.8,
next_actions=("compare the before and after digests",),
session_id="proof-session",
)
status = triage_store.status(triage.triage_id, session_id="proof-session")
assert status["triage_id"] == triage.triage_id
assert len(status["evidence"]) == 1
evidence = status["evidence"][0]
assert evidence["id"] == first.reproduction_id
assert evidence["exit_code"] == 0
assert evidence["state_drift_observed"] is True
assert status["state_drift_observed"] is True
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