ctx / src /tests /test_ctx_ab_holdout_materialize.py
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from __future__ import annotations
from dataclasses import dataclass
import hashlib
import json
from pathlib import Path
import stat
import subprocess
from typing import Any
import pytest
from scripts import ctx_ab_exposure_ledger as exposure_ledger
from scripts import ctx_ab_holdout as holdout
from scripts import ctx_ab_holdout_freeze as freezer
from scripts import ctx_ab_holdout_materialize as materializer
ROOT = Path(__file__).resolve().parents[2]
PROTOCOL_PATH = ROOT / "benchmarks" / "ctx_ab" / "holdout-protocol-v1.json"
REVISION = "1" * 40
RUN_EVALUATION_SHA256 = "2" * 64
BRIDGE_SHA256 = "3" * 64
PYTHON_SHA256 = "4" * 64
PYTHON_ENVIRONMENT_SHA256 = "5" * 64
DOCKER_PACKAGE_SHA256 = "6" * 64
DOCKER_CLI_SHA256 = "7" * 64
DOCKER_DAEMON_ID = "ctx-test-daemon"
DOCKER_SERVER_VERSION = "29.5.2"
HIDDEN_ARTIFACT = "PRIVATE-HIDDEN-EVALUATOR-CONTENT"
EXPOSURE_SALT = "b" * 64
ORIGIN_URL = "https://github.com/stevesolun/ctx.git"
@dataclass
class Fixture:
archive: Path
docker_cli: Path
docker_host: str
exposure_ledger: Path
output: Path
protocol: dict[str, Any]
protocol_path: Path
repositories: dict[str, Path]
rows: list[dict[str, Any]]
rows_path: Path
runtime: Path
selection: dict[str, Any]
selection_path: Path
source_map: Path
swebench_checkout: Path
swebench_python: Path
def _git(repo: Path, *args: str) -> str:
result = subprocess.run(
["git", *args],
cwd=repo,
check=True,
capture_output=True,
text=True,
)
return result.stdout
def _diff(repo: Path, path: Path, changed: str) -> str:
path.write_text(changed, encoding="utf-8")
patch = _git(repo, "diff", "--", path.relative_to(repo).as_posix())
_git(repo, "checkout", "--", path.relative_to(repo).as_posix())
return patch
def _make_repo(root: Path, index: int) -> tuple[Path, list[dict[str, object]]]:
repo = root / f"repo-{index}"
repo.mkdir()
_git(repo, "init", "-q")
_git(repo, "config", "user.email", "ctx@example.invalid")
_git(repo, "config", "user.name", "CTX Test")
(repo / "src").mkdir()
(repo / "tests").mkdir()
for candidate in range(2):
(repo / "src" / f"feature_{candidate}.py").write_text(
"def value():\n return 0\n",
encoding="utf-8",
)
(repo / "tests" / f"test_feature_{candidate}.py").write_text(
"def test_existing():\n assert True\n",
encoding="utf-8",
)
_git(repo, "add", ".")
_git(repo, "commit", "-qm", "fixture")
commit = _git(repo, "rev-parse", "HEAD").strip()
rows: list[dict[str, object]] = []
for candidate in range(2):
product = repo / "src" / f"feature_{candidate}.py"
test = repo / "tests" / f"test_feature_{candidate}.py"
patch = _diff(
repo,
product,
(
"def value():\n"
" result = 1\n"
" result += 0\n"
" result *= 1\n"
" result -= 0\n"
" return result\n"
),
)
test_patch = _diff(
repo,
test,
(
f"from feature_{candidate} import value\n\n\n"
"def test_existing():\n"
" assert True\n\n\n"
"def test_new_behavior():\n"
" assert value() == 1\n"
),
)
test_id = f"tests/test_feature_{candidate}.py"
rows.append(
{
"row_idx": index * 2 + candidate,
"repo": f"owner/repo-{index}",
"instance_id": f"private-holdout-{index}-{candidate}",
"base_commit": commit,
"patch": patch,
"test_patch": test_patch,
"problem_statement": (
"PRIVATE-HOLDOUT-TASK implement the deterministic local value behavior "
"while preserving existing callers and proving the focused regression "
"through the repository test module without external services or keys."
),
"hints_text": "",
"created_at": "2026-01-01",
"version": "1",
"FAIL_TO_PASS": json.dumps([f"{test_id}::test_new_behavior"]),
"PASS_TO_PASS": json.dumps([f"{test_id}::test_existing"]),
"environment_setup_commit": commit,
"difficulty": "easy",
}
)
return repo, rows
def _canonical(value: object) -> bytes:
return json.dumps(value, sort_keys=True, separators=(",", ":"), ensure_ascii=False).encode()
def _canonical_acquisition(value: object) -> bytes:
return _canonical(value) + b"\n"
def _executable(path: Path) -> Path:
path.write_text("#!/bin/sh\nexit 0\n", encoding="utf-8")
path.chmod(0o700)
return path
def _fixture(tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> Fixture:
repos = tmp_path / "repos"
repos.mkdir()
bundles = tmp_path / "source-bundles"
bundles.mkdir(mode=0o700)
rows: list[dict[str, object]] = []
repositories: dict[str, Path] = {}
sources: dict[str, Any] = {"repositories": {}, "schema_version": 1}
for index in range(10):
repo, repo_rows = _make_repo(repos, index)
rows.extend(repo_rows)
canonical_url = holdout.canonical_repo_url(f"owner/repo-{index}")
bundle = bundles / f"repo-{index}.bundle"
_git(repo, "branch", "base", "HEAD")
_git(repo, "bundle", "create", str(bundle), "refs/heads/base")
bundle.chmod(0o600)
commit = _git(repo, "rev-parse", "HEAD").strip()
tree = _git(repo, "rev-parse", "HEAD^{tree}").strip()
repositories[canonical_url] = repo
sources["repositories"][canonical_url] = {
"base_commit": commit,
"bundle_path": bundle.relative_to(tmp_path).as_posix(),
"bundle_sha256": hashlib.sha256(bundle.read_bytes()).hexdigest(),
"tree_sha1": tree,
}
rows_bytes = b"".join(_canonical(row) + b"\n" for row in rows)
rows_path = tmp_path / "rows.jsonl"
rows_path.write_bytes(rows_bytes)
runtime_path = tmp_path / "runtime.json"
runtime_path.write_bytes(_canonical({"entities": []}))
archive_path = tmp_path / "catalog.tar.gz"
archive_path.write_bytes(b"synthetic-catalog")
swebench_checkout = tmp_path / "SWE-bench"
swebench_checkout.mkdir()
swebench_python = _executable(tmp_path / "swebench-python")
docker_cli = _executable(tmp_path / "docker")
exposure_document = {
"instance_id_hmac_sha256": [
exposure_ledger.instance_id_hmac_sha256(
EXPOSURE_SALT,
"historical-control-task",
)
],
"salt": EXPOSURE_SALT,
"schema_version": 1,
}
exposure_path = tmp_path / "exposure-ledger.json"
exposure_bytes = exposure_ledger.canonical_ledger_bytes(exposure_document)
exposure_path.write_bytes(exposure_bytes)
exposure_path.chmod(0o600)
v1 = json.loads(PROTOCOL_PATH.read_text(encoding="utf-8"))
v1["universe"]["expected_rows"] = len(rows)
v1["universe"]["selection_jsonl_sha256"] = hashlib.sha256(rows_bytes).hexdigest()
benchmark_path = Path(str(materializer.benchmark.__file__))
product_inputs = {
"benchmark_script_sha256": hashlib.sha256(benchmark_path.read_bytes()).hexdigest(),
"catalog_archive_sha256": hashlib.sha256(archive_path.read_bytes()).hexdigest(),
"codex_binary_sha256": "a" * 64,
"origin_main_revision": str(v1["product_inputs"]["revision"]),
"origin_url": ORIGIN_URL,
"provider_config_sha256": materializer.benchmark.codex_provider_config_sha256("openai"),
"revision": str(v1["product_inputs"]["revision"]),
"runtime_availability_sha256": hashlib.sha256(runtime_path.read_bytes()).hexdigest(),
}
verifier_pins = {
"bridge_sha256": BRIDGE_SHA256,
"docker_cli_sha256": DOCKER_CLI_SHA256,
"docker_daemon_id": DOCKER_DAEMON_ID,
"docker_package_sha256": DOCKER_PACKAGE_SHA256,
"docker_server_version": DOCKER_SERVER_VERSION,
"namespace": "swebench",
"python_environment_sha256": PYTHON_ENVIRONMENT_SHA256,
"python_sha256": PYTHON_SHA256,
"revision": REVISION,
"run_evaluation_sha256": RUN_EVALUATION_SHA256,
"schema_version": 1,
}
protocol = freezer.build_acquisition_protocol(
v1=v1,
frozen_at=str(v1["frozen_at"]),
acquisition_frozen_at=str(v1["acquisition_frozen_at"]),
product_inputs=product_inputs,
verifier_pins=verifier_pins,
exposure_ledger_sha256=hashlib.sha256(exposure_bytes).hexdigest(),
)
monkeypatch.setattr(
freezer,
"_supported_v1_protocol",
lambda: json.loads(json.dumps(v1)),
)
selection = holdout.select_rows(
[holdout.evaluate_row(row, protocol) for row in rows],
protocol,
)
protocol_path = tmp_path / "protocol.json"
protocol_path.write_bytes(_canonical_acquisition(protocol))
selection_path = tmp_path / "selection.json"
selection_path.write_bytes(_canonical(selection))
source_map_path = tmp_path / "sources.json"
source_map_path.write_bytes(_canonical(sources))
source_map_path.chmod(0o600)
return Fixture(
archive=archive_path,
docker_cli=docker_cli,
docker_host="unix:///tmp/ctx-materializer-test.sock",
exposure_ledger=exposure_path,
output=tmp_path / "private-output",
protocol=protocol,
protocol_path=protocol_path,
repositories=repositories,
rows=rows,
rows_path=rows_path,
runtime=runtime_path,
selection=selection,
selection_path=selection_path,
source_map=source_map_path,
swebench_checkout=swebench_checkout,
swebench_python=swebench_python,
)
def _run(fixture: Fixture) -> dict[str, str]:
return materializer.materialize(
protocol_path=fixture.protocol_path,
expected_acquisition_protocol_sha256=hashlib.sha256(
fixture.protocol_path.read_bytes()
).hexdigest(),
exposure_ledger_path=fixture.exposure_ledger,
rows_path=fixture.rows_path,
selection_path=fixture.selection_path,
source_map_path=fixture.source_map,
runtime_availability_path=fixture.runtime,
catalog_archive_path=fixture.archive,
output=fixture.output,
failure_evidence_output=fixture.output.parent / "materialization-failure-evidence",
swebench_checkout=fixture.swebench_checkout,
swebench_python=fixture.swebench_python,
docker_cli=fixture.docker_cli,
docker_host=fixture.docker_host,
)
class VerifierDouble:
def __init__(
self,
fixture: Fixture,
*,
fail_phase: str | None = None,
invalid_phase: str | None = None,
runtime_drift_phase: str | None = None,
) -> None:
self.fixture = fixture
self.fail_phase = fail_phase
self.invalid_phase = invalid_phase
self.runtime_drift_phase = runtime_drift_phase
self.calls: list[dict[str, Any]] = []
self.rows = {str(row["instance_id"]): row for row in fixture.rows}
def __call__(self, **kwargs: Any) -> dict[str, Any]:
self.calls.append(dict(kwargs))
phase = str(kwargs["phase"])
if phase == self.fail_phase:
raise materializer.swebench.SWEbenchVerificationError(f"synthetic {phase} failure")
instance_id = str(kwargs["instance_id"])
row = self.rows[instance_id]
fail_to_pass = json.loads(str(row["FAIL_TO_PASS"]))
pass_to_pass = json.loads(str(row["PASS_TO_PASS"]))
image_id = "sha256:" + hashlib.sha256(instance_id.encode()).hexdigest()
if phase == "green":
assert kwargs["expected_image_id"] == image_id
run_id = f"ctx-sb-{phase}-{len(self.calls):020d}"
model_name = f"ctx-swebench-{phase}"
work_dir = Path(kwargs["work_dir"])
log_dir = work_dir / "logs" / "run_evaluation" / run_id / model_name / instance_id
log_dir.mkdir(mode=0o700, parents=True)
root_names = {
"parent-process.json",
"verification-evidence.json",
"worker-request.json",
"worker-result.json",
}
if phase == "red":
root_names.add("mode-probe.log")
artifact_names = {*materializer.swebench.REQUIRED_ARTIFACTS, *root_names}
artifact_evidence: dict[str, dict[str, object]] = {}
hidden_selector = fail_to_pass[0]
for name in sorted(artifact_names):
target = work_dir / name if name in root_names else log_dir / name
target.parent.mkdir(mode=0o700, parents=True, exist_ok=True)
content = (
f"{HIDDEN_ARTIFACT}|{instance_id}|{hidden_selector}\n"
if name == "test_output.txt"
else f"{phase}|{name}\n"
).encode()
target.write_bytes(content)
target.chmod(0o600)
artifact_evidence[name] = {
"bytes": len(content),
"name": name,
"present": True,
"sha256": hashlib.sha256(content).hexdigest(),
}
validation = {
"container_policy_count": 2 if phase == "red" else 1,
"exact_selector_identity": True,
"exact_selector_keys_present": True,
"fail_to_pass_count": len(fail_to_pass),
"image_id": image_id,
"parsed_status_key_count": len(fail_to_pass) + len(pass_to_pass),
"pass_to_pass_count": len(pass_to_pass),
"phase": phase,
"resolution": "RESOLVED_NO" if phase == "red" else "RESOLVED_FULL",
"resolved": phase != "red",
"status_counts": (
{"FAILED": len(fail_to_pass), "PASSED": len(pass_to_pass)}
if phase == "red"
else {"PASSED": len(fail_to_pass) + len(pass_to_pass)}
),
}
if phase == self.invalid_phase:
validation["exact_selector_identity"] = False
pins = self.fixture.protocol[materializer.VERIFIER_PROTOCOL_KEY]
harness_source_sha256 = "9" * 64 if phase == self.runtime_drift_phase else "8" * 64
return {
"artifacts": artifact_evidence,
"authentication": {
"git_revision": pins["revision"],
"run_evaluation_sha256": pins["run_evaluation_sha256"],
"source_file_count": 42,
"source_sha256": harness_source_sha256,
},
"cleanup": {"ok": True},
"docker_identity": {
"daemon_id_sha256": hashlib.sha256(
str(pins["docker_daemon_id"]).encode()
).hexdigest(),
"server_version": pins["docker_server_version"],
},
"docker_package": {
"file_count": 17,
"sha256": pins["docker_package_sha256"],
},
"input_snapshots": {
"bridge_sha256": pins["bridge_sha256"],
"dataset_sha256": self.fixture.protocol["universe"]["selection_jsonl_sha256"],
"docker_package": {
"file_count": 17,
"sha256": pins["docker_package_sha256"],
},
"harness_source": {
"file_count": 42,
"sha256": harness_source_sha256,
},
},
"model_name": model_name,
"phase": phase,
"process": {
"residual_descendant_count": 0,
"returncode": 0,
"timed_out": False,
},
"python_environment": {
"distribution_count": 23,
"sha256": pins["python_environment_sha256"],
},
"run_id": run_id,
"schema_version": 1,
"validation": validation,
}
def _install_verifier(
fixture: Fixture,
monkeypatch: pytest.MonkeyPatch,
*,
fail_phase: str | None = None,
invalid_phase: str | None = None,
runtime_drift_phase: str | None = None,
) -> VerifierDouble:
double = VerifierDouble(
fixture,
fail_phase=fail_phase,
invalid_phase=invalid_phase,
runtime_drift_phase=runtime_drift_phase,
)
monkeypatch.setattr(materializer.swebench, "verify_swebench", double)
return double
def test_materializes_ten_official_controls_and_evaluator_bound_attestations(
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
fixture = _fixture(tmp_path, monkeypatch)
double = _install_verifier(fixture, monkeypatch)
hashes = _run(fixture)
output = fixture.output
assert set(hashes) == {
"scenario_pack",
"collision",
"reconstructed",
"controls",
}
assert len(double.calls) == 20
assert not (output.parent / "materialization-failure-evidence").exists()
retained = output / materializer.VERIFICATION_DIR
assert stat.S_IMODE(output.stat().st_mode) == 0o700
assert all(
stat.S_IMODE((output / name).stat().st_mode) == 0o600
for name in materializer.OUTPUT_FILES.values()
)
assert stat.S_IMODE(retained.stat().st_mode) == 0o700
assert all(
stat.S_IMODE(path.stat().st_mode) == (0o700 if path.is_dir() else 0o600)
for path in retained.rglob("*")
)
assert len(list(retained.glob("scenario-*"))) == 10
scenario_bytes = (output / "scenario-pack.json").read_bytes()
controls_bytes = (output / "control-results.json").read_bytes()
scenario_pack = json.loads(scenario_bytes)
scenarios = scenario_pack["scenarios"]
controls = json.loads(controls_bytes)
assert scenario_pack["version"] == 1
assert len(scenarios) == 10
assert controls["all_scenarios_passed"] is True
assert "all_seven_passed" not in controls
assert set(controls["scenario_results"]) == {row["id"] for row in scenarios}
assert controls["guard"] == "holdout-control-results-v1"
assert controls["scenario_count"] == 10
assert not (output / "execution-schedule.json").exists()
assert all(row["ctx_context"] == [] for row in scenarios)
assert all(row["reconstructed_test_sha256"] for row in scenarios)
assert all(
result["official_swebench"]["red"]["status_counts"]["FAILED"] == 1
and result["official_swebench"]["green"]["status_counts"] == {"PASSED": 2}
and result["official_swebench"]["red"]["image_id"]
== result["official_swebench"]["green"]["image_id"]
and result["official_swebench"]["image_id"]
== result["official_swebench"]["green"]["image_id"]
for result in controls["scenario_results"].values()
)
assert all(
row["official_verifier_binding"]["base_commit"] == row["commit"]
and row["official_verifier_binding"]["repository_url"] == row["repo_url"]
and row["official_verifier_binding"]["image_content_digest"]
== controls["scenario_results"][row["id"]]["official_swebench"]["image_id"]
and row["official_verifier_binding"]["dataset_sha256"]
== fixture.protocol["universe"]["selection_jsonl_sha256"]
for row in scenarios
)
protocol = fixture.protocol
collision_path = output / "collision-attestation.json"
reconstructed_path = output / "reconstructed-test-attestation.json"
environment_path = tmp_path / "execution-environment.json"
schedule_path = tmp_path / "execution-schedule.json"
frozen_protocol_path = tmp_path / "execution-protocol.json"
environment_path.write_bytes(
_canonical(
{
"codex": {
"runtime_contract": {
"arms": ["baseline", "ctx-light"],
"model_auto_compact_token_limit": 200_000,
"model_reasoning_effort": "high",
},
"version": "test",
},
"evaluator": {
"backend": materializer.benchmark.OFFICIAL_HOLDOUT_BACKEND,
"pins_sha256": hashlib.sha256(
_canonical(protocol[materializer.VERIFIER_PROTOCOL_KEY])
).hexdigest(),
},
"limits": {
"agent_timeout_seconds": 900,
"arms": ["baseline", "ctx-light"],
"catalog_cache_hit": False,
"measured_concurrency": 1,
"pair_count": 30,
"retries": 0,
"sandbox_contract": materializer.benchmark.OFFICIAL_SANDBOX_CONTRACT,
"task_count": 10,
"trials_per_scenario": 3,
},
"model": "test-model",
"product_revision": protocol["product_inputs"]["revision"],
"protocol_id": materializer.PROTOCOL_ID,
"provider": "openai",
"python": {
"dependencies_sha256": PYTHON_ENVIRONMENT_SHA256,
"executable_sha256": PYTHON_SHA256,
"version": "3.12.0",
},
"schema_version": 1,
}
)
)
fixture.selection_path.chmod(0o600)
environment_path.chmod(0o600)
monkeypatch.setattr(
materializer.benchmark,
"PRODUCTION_CATALOG_ARCHIVE",
fixture.archive,
)
monkeypatch.setattr(
materializer.benchmark,
"PRODUCTION_RUNTIME_AVAILABILITY",
fixture.runtime,
)
freezer.freeze_protocol(
protocol_path=fixture.protocol_path,
exposure_ledger_path=fixture.exposure_ledger,
expected_acquisition_protocol_sha256=hashlib.sha256(
fixture.protocol_path.read_bytes()
).hexdigest(),
selection_path=fixture.selection_path,
scenario_pack_path=output / "scenario-pack.json",
source_map_path=fixture.source_map,
collision_path=collision_path,
reconstructed_path=reconstructed_path,
controls_path=output / "control-results.json",
environment_path=environment_path,
schedule_path=schedule_path,
output_path=frozen_protocol_path,
frozen_at="2026-07-30T12:34:56+03:00",
)
protocol_bytes = frozen_protocol_path.read_bytes()
loaded = materializer.benchmark.load_execution_frozen_holdout(
protocol_path=frozen_protocol_path,
expected_protocol_sha256=hashlib.sha256(protocol_bytes).hexdigest(),
selection_path=fixture.selection_path,
scenario_pack_path=output / "scenario-pack.json",
collision_path=collision_path,
reconstructed_path=reconstructed_path,
control_results_path=output / "control-results.json",
environment_path=environment_path,
schedule_path=schedule_path,
source_map_path=fixture.source_map,
)
assert len(loaded.scenarios) == 10
assert len(loaded.schedule.assignments) == 30
assert loaded.image_ids == {
scenario_id: result["official_swebench"]["image_id"]
for scenario_id, result in controls["scenario_results"].items()
}
def test_red_green_invocations_are_symmetric_and_host_pytest_is_never_run(
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
fixture = _fixture(tmp_path, monkeypatch)
double = _install_verifier(fixture, monkeypatch)
commands: list[list[str]] = []
original_run = materializer._run
def recording_run(argv: list[str], **kwargs: Any) -> materializer.ProcessResult:
commands.append(list(argv))
return original_run(argv, **kwargs)
monkeypatch.setattr(materializer, "_run", recording_run)
_run(fixture)
assert len(double.calls) == 20
pins = fixture.protocol[materializer.VERIFIER_PROTOCOL_KEY]
excluded = {
"allow_image_pull",
"expected_image_id",
"phase",
"timeout",
"work_dir",
}
for red, green in zip(double.calls[::2], double.calls[1::2], strict=True):
assert red["phase"] == "red"
assert green["phase"] == "green"
assert red["instance_id"] == green["instance_id"]
assert red["allow_image_pull"] is True
assert "expected_image_id" not in red
assert green["allow_image_pull"] is False
assert green["expected_image_id"] == (
"sha256:" + hashlib.sha256(str(red["instance_id"]).encode()).hexdigest()
)
assert red["expected_bridge_sha256"] == pins["bridge_sha256"]
assert (
red["expected_dataset_sha256"]
== hashlib.sha256(fixture.rows_path.read_bytes()).hexdigest()
)
assert red["expected_revision"] == pins["revision"]
assert red["expected_run_evaluation_sha256"] == pins["run_evaluation_sha256"]
assert red["expected_python_sha256"] == pins["python_sha256"]
assert red["expected_python_environment_sha256"] == pins["python_environment_sha256"]
assert red["expected_docker_package_sha256"] == pins["docker_package_sha256"]
assert red["expected_docker_cli_sha256"] == pins["docker_cli_sha256"]
assert red["expected_docker_daemon_id"] == pins["docker_daemon_id"]
assert red["expected_docker_server_version"] == pins["docker_server_version"]
assert {key: value for key, value in red.items() if key not in excluded} == {
key: value for key, value in green.items() if key not in excluded
}
assert all(
Path(command[0]).name != "pytest"
and not any(command[index : index + 2] == ["-m", "pytest"] for index in range(len(command)))
for command in commands
)
def test_authenticated_v2_semantic_evidence_is_deterministic_across_identical_runs(
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
fixture = _fixture(tmp_path, monkeypatch)
_install_verifier(fixture, monkeypatch)
first_hashes = _run(fixture)
first_bytes = {
name: (fixture.output / filename).read_bytes()
for name, filename in materializer.OUTPUT_FILES.items()
}
fixture.output = tmp_path / "private-output-second"
second_hashes = _run(fixture)
second_bytes = {
name: (fixture.output / filename).read_bytes()
for name, filename in materializer.OUTPUT_FILES.items()
}
for name in ("scenario_pack", "collision", "reconstructed"):
assert first_hashes[name] == second_hashes[name]
assert first_bytes[name] == second_bytes[name]
first_controls = json.loads(first_bytes["controls"])
second_controls = json.loads(second_bytes["controls"])
for document in (first_controls, second_controls):
for result in document["scenario_results"].values():
result.pop("elapsed_seconds")
assert first_controls == second_controls
@pytest.mark.parametrize("phase", ["red", "green"])
def test_failed_official_control_is_no_go_without_fallback(
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
phase: str,
) -> None:
fixture = _fixture(tmp_path, monkeypatch)
double = _install_verifier(fixture, monkeypatch, fail_phase=phase)
with pytest.raises(materializer.MaterializationError, match=f"official {phase} control"):
_run(fixture)
assert not fixture.output.exists()
assert len(double.calls) == (1 if phase == "red" else 2)
assert not list(fixture.output.parent.glob(".official-verification-*"))
failure_root = fixture.output.parent / "materialization-failure-evidence"
failure = json.loads((failure_root / "failure.json").read_text(encoding="utf-8"))
assert failure["guard"] == "ctx-ab-private-failure-v1"
assert failure["operation"] == "holdout-materialization"
assert [item["type"] for item in failure["exception_chain"]] == [
"MaterializationError",
"SWEbenchVerificationError",
]
assert (failure_root / "raw-control-work" / "scenario-0").is_dir()
if phase == "green":
assert (failure_root / "scenario-000" / "red" / "test_output.txt").is_file()
manifest = json.loads((failure_root / "artifact-manifest.json").read_text(encoding="utf-8"))
assert manifest["guard"] == "ctx-ab-private-failure-v1"
assert manifest["entry_count"] == len(manifest["entries"])
assert (
manifest["manifest_sha256"] == hashlib.sha256(_canonical(manifest["entries"])).hexdigest()
)
assert stat.S_IMODE(failure_root.stat().st_mode) == 0o700
assert stat.S_IMODE((failure_root / "failure.json").stat().st_mode) == 0o600
assert all(
path.is_symlink() or path.lstat().st_mode & 0o077 == 0 for path in failure_root.rglob("*")
)
def test_cli_preserves_early_failure_without_printing_private_details(
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
capsys: pytest.CaptureFixture[str],
) -> None:
def fail(**_kwargs: Any) -> dict[str, str]:
raise RuntimeError("private-task-id and private detail")
monkeypatch.setattr(materializer, "materialize", fail)
failure_root = tmp_path / "materialization-failure"
argv = [
"--protocol",
str(tmp_path / "protocol"),
"--expected-acquisition-protocol-sha256",
"0" * 64,
"--exposure-ledger",
str(tmp_path / "exposure"),
"--rows",
str(tmp_path / "rows"),
"--selection",
str(tmp_path / "selection"),
"--source-map",
str(tmp_path / "source-map"),
"--runtime-availability",
str(tmp_path / "runtime"),
"--catalog-archive",
str(tmp_path / "catalog"),
"--output",
str(tmp_path / "output"),
"--failure-evidence-output",
str(failure_root),
"--swebench-checkout",
str(tmp_path / "swebench"),
"--swebench-python",
str(tmp_path / "python"),
"--docker-cli",
str(tmp_path / "docker"),
"--docker-host",
"unix:///tmp/test-docker.sock",
]
with pytest.raises(SystemExit) as raised:
materializer.main(argv)
captured = capsys.readouterr()
assert raised.value.code == 2
assert captured.out == ""
assert captured.err == (
"materialization failed; private details suppressed (RuntimeError); evidence=preserved\n"
)
assert "private-task" not in captured.err
failure = json.loads((failure_root / "failure.json").read_text(encoding="utf-8"))
assert failure["operation"] == "holdout-materialization"
assert failure["exception_chain"] == [
{
"message": "private-task-id and private detail",
"type": "RuntimeError",
}
]
def test_final_output_publication_failure_preserves_all_control_evidence(
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
fixture = _fixture(tmp_path, monkeypatch)
double = _install_verifier(fixture, monkeypatch)
real_rename = Path.rename
def fail_final_output_publication(source: Path, target: Path) -> Path:
if source.name.startswith(".materialize-") and target == fixture.output:
raise OSError("synthetic final output publication failure")
return real_rename(source, target)
monkeypatch.setattr(Path, "rename", fail_final_output_publication)
with pytest.raises(OSError, match="synthetic final output publication failure"):
_run(fixture)
assert len(double.calls) == 20
assert not fixture.output.exists()
failure_root = fixture.output.parent / "materialization-failure-evidence"
assert (failure_root / "failure.json").is_file()
retained = [
path for path in failure_root.glob("scenario-*") if path.is_dir() and not path.is_symlink()
]
assert len(retained) == 10
assert not list(fixture.output.parent.glob(".materialize-*"))
assert not list(fixture.output.parent.glob(".official-verification-*"))
def test_inexact_selector_evidence_fails_closed(
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
fixture = _fixture(tmp_path, monkeypatch)
double = _install_verifier(fixture, monkeypatch, invalid_phase="red")
with pytest.raises(materializer.MaterializationError, match="official red control"):
_run(fixture)
assert len(double.calls) == 1
assert not fixture.output.exists()
def test_cross_phase_runtime_identity_drift_fails_closed(
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
fixture = _fixture(tmp_path, monkeypatch)
double = _install_verifier(
fixture,
monkeypatch,
runtime_drift_phase="green",
)
with pytest.raises(materializer.MaterializationError, match="official green control"):
_run(fixture)
assert len(double.calls) == 2
assert not fixture.output.exists()
def test_frozen_dataset_tamper_is_rejected_before_verifier_execution(
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
fixture = _fixture(tmp_path, monkeypatch)
double = _install_verifier(fixture, monkeypatch)
fixture.rows_path.write_bytes(fixture.rows_path.read_bytes() + b"\n")
with pytest.raises(materializer.MaterializationError, match="acquisition freeze"):
_run(fixture)
assert not double.calls
assert not fixture.output.exists()
def test_historically_exposed_top_candidate_is_replaced_and_materialized(
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
fixture = _fixture(tmp_path, monkeypatch)
exposed_id = str(fixture.selection["analysis_instance_ids"][0])
exposure_document = {
"instance_id_hmac_sha256": [
exposure_ledger.instance_id_hmac_sha256(EXPOSURE_SALT, exposed_id)
],
"salt": EXPOSURE_SALT,
"schema_version": 1,
}
exposure_bytes = exposure_ledger.canonical_ledger_bytes(exposure_document)
fixture.exposure_ledger.write_bytes(exposure_bytes)
fixture.exposure_ledger.chmod(0o600)
fixture.protocol["exposure_ledger_sha256"] = hashlib.sha256(exposure_bytes).hexdigest()
fixture.protocol_path.write_bytes(_canonical_acquisition(fixture.protocol))
filtered = holdout.reject_historical_exposures(
[holdout.evaluate_row(row, fixture.protocol) for row in fixture.rows],
exposure_document,
)
fixture.selection = holdout.select_rows(filtered, fixture.protocol)
fixture.selection_path.write_bytes(_canonical(fixture.selection))
double = _install_verifier(fixture, monkeypatch)
_run(fixture)
assert exposed_id not in fixture.selection["analysis_instance_ids"]
assert len(fixture.selection["analysis_instance_ids"]) == 10
assert len(set(fixture.selection["analysis_repository_map"].values())) == 10
assert len(double.calls) == 20
@pytest.mark.parametrize("kind", ["missing", "tampered", "symlink", "hardlink"])
def test_exposure_ledger_fails_closed_before_selection_or_verifier(
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
kind: str,
) -> None:
fixture = _fixture(tmp_path, monkeypatch)
double = _install_verifier(fixture, monkeypatch)
alias = fixture.exposure_ledger.with_suffix(".alias")
if kind == "missing":
fixture.exposure_ledger.unlink()
elif kind == "tampered":
fixture.exposure_ledger.write_bytes(fixture.exposure_ledger.read_bytes() + b"tampered")
elif kind == "symlink":
fixture.exposure_ledger.rename(alias)
fixture.exposure_ledger.symlink_to(alias)
else:
alias.hardlink_to(fixture.exposure_ledger)
with pytest.raises(
materializer.MaterializationError,
match="authenticated exposure ledger",
):
_run(fixture)
assert not double.calls
assert not fixture.output.exists()
@pytest.mark.parametrize(
"kind",
[
"missing",
"tampered-bundle",
"reordered",
"path-traversal",
"extra-key",
"hash-mismatch",
],
)
def test_source_map_and_bundles_fail_closed_before_verifier_execution(
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
kind: str,
) -> None:
fixture = _fixture(tmp_path, monkeypatch)
double = _install_verifier(fixture, monkeypatch)
document = json.loads(fixture.source_map.read_bytes())
first = next(iter(document["repositories"].values()))
bundle = fixture.source_map.parent / first["bundle_path"]
if kind == "missing":
fixture.source_map.unlink()
elif kind == "tampered-bundle":
bundle.write_bytes(bundle.read_bytes() + b"tampered")
elif kind == "reordered":
fixture.source_map.write_bytes(
json.dumps(
{
"schema_version": document["schema_version"],
"repositories": document["repositories"],
},
separators=(",", ":"),
).encode()
)
elif kind == "path-traversal":
first["bundle_path"] = "../escaped.bundle"
fixture.source_map.write_bytes(_canonical(document))
elif kind == "extra-key":
first["extra"] = True
fixture.source_map.write_bytes(_canonical(document))
else:
first["bundle_sha256"] = "0" * 64
fixture.source_map.write_bytes(_canonical(document))
if fixture.source_map.exists():
fixture.source_map.chmod(0o600)
with pytest.raises(materializer.MaterializationError, match="private source map"):
_run(fixture)
assert not double.calls
assert not fixture.output.exists()
@pytest.mark.parametrize("kind", ["symlink", "hardlink"])
def test_source_bundle_aliases_fail_closed_before_verifier_execution(
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
kind: str,
) -> None:
fixture = _fixture(tmp_path, monkeypatch)
double = _install_verifier(fixture, monkeypatch)
document = json.loads(fixture.source_map.read_bytes())
first = next(iter(document["repositories"].values()))
bundle = fixture.source_map.parent / first["bundle_path"]
alias = bundle.with_suffix(".alias")
if kind == "symlink":
bundle.rename(alias)
bundle.symlink_to(alias)
else:
alias.hardlink_to(bundle)
with pytest.raises(materializer.MaterializationError, match="private source map"):
_run(fixture)
assert not double.calls
assert not fixture.output.exists()
def test_source_bundle_with_future_history_is_rejected_before_private_work(
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
fixture = _fixture(tmp_path, monkeypatch)
double = _install_verifier(fixture, monkeypatch)
document = json.loads(fixture.source_map.read_bytes())
canonical_url, first = next(iter(document["repositories"].items()))
repo = fixture.repositories[canonical_url]
(repo / "future-gold.txt").write_text("future solution\n", encoding="utf-8")
_git(repo, "add", "future-gold.txt")
_git(repo, "commit", "-qm", "future gold")
bundle = fixture.source_map.parent / first["bundle_path"]
bundle.unlink()
_git(repo, "bundle", "create", str(bundle), "--all")
bundle.chmod(0o600)
first["bundle_sha256"] = hashlib.sha256(bundle.read_bytes()).hexdigest()
fixture.source_map.write_bytes(_canonical(document))
fixture.source_map.chmod(0o600)
with pytest.raises(
materializer.MaterializationError,
match="unpinned ref|base-commit closure",
):
_run(fixture)
assert not double.calls
assert not fixture.output.exists()
def test_requires_exactly_ten_repositories_before_verifier_execution(
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
fixture = _fixture(tmp_path, monkeypatch)
double = _install_verifier(fixture, monkeypatch)
fixture.protocol["selection"].update(
{
"analysis_repositories": 9,
"analysis_scenarios": 9,
"eligible_repositories_required": 9,
}
)
fixture.protocol_path.write_bytes(_canonical_acquisition(fixture.protocol))
fixture.selection = holdout.select_rows(
[holdout.evaluate_row(row, fixture.protocol) for row in fixture.rows],
fixture.protocol,
)
fixture.selection_path.write_bytes(_canonical(fixture.selection))
with pytest.raises(
materializer.MaterializationError,
match="fixed V2 acquisition design drifted",
):
_run(fixture)
assert not double.calls
assert not fixture.output.exists()
def test_broken_symlink_output_destination_is_rejected_before_private_work(
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
fixture = _fixture(tmp_path, monkeypatch)
double = _install_verifier(fixture, monkeypatch)
fixture.output.symlink_to(tmp_path / "missing-private-output", target_is_directory=True)
with pytest.raises(materializer.MaterializationError, match="already exists"):
_run(fixture)
assert not double.calls
assert fixture.output.is_symlink()
def test_materialization_never_mutates_future_agent_repository_inputs(
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
fixture = _fixture(tmp_path, monkeypatch)
_install_verifier(fixture, monkeypatch)
_run(fixture)
selected_ids = set(fixture.selection["analysis_instance_ids"])
for row in fixture.rows:
if row["instance_id"] not in selected_ids:
continue
repo = fixture.repositories[holdout.canonical_repo_url(str(row["repo"]))]
assert _git(repo, "status", "--porcelain=v1", "--untracked-files=all") == ""
product_path = holdout._parse_patch(str(row["patch"]))[0][0]
test_path = holdout._parse_patch(str(row["test_patch"]))[0][0]
assert "return 0" in (repo / product_path).read_text(encoding="utf-8")
assert "test_new_behavior" not in (repo / test_path).read_text(encoding="utf-8")
def test_hidden_raw_artifacts_are_private_and_summaries_are_redacted(
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
fixture = _fixture(tmp_path, monkeypatch)
_install_verifier(fixture, monkeypatch)
hashes = _run(fixture)
selected_id = fixture.selection["analysis_instance_ids"][0]
selected = next(row for row in fixture.rows if row["instance_id"] == selected_id)
selector = json.loads(str(selected["FAIL_TO_PASS"]))[0]
raw = (
fixture.output / materializer.VERIFICATION_DIR / "scenario-000" / "red" / "test_output.txt"
).read_text(encoding="utf-8")
summary = (
fixture.output / materializer.VERIFICATION_DIR / "scenario-000" / "red" / "summary.json"
).read_text(encoding="utf-8")
evidence = (
fixture.output / materializer.VERIFICATION_DIR / "scenario-000" / "red" / "evidence.json"
).read_text(encoding="utf-8")
controls = (fixture.output / "control-results.json").read_text(encoding="utf-8")
assert HIDDEN_ARTIFACT in raw
assert selected_id in raw
assert selector in raw
for safe_summary in (summary, evidence, controls, json.dumps(hashes)):
assert HIDDEN_ARTIFACT not in safe_summary
assert selector not in safe_summary
assert str(selected["problem_statement"]) not in safe_summary
assert str(selected["patch"]) not in safe_summary
assert str(selected["test_patch"]) not in safe_summary
def test_requires_exact_frozen_timeout_before_private_work(
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
fixture = _fixture(tmp_path, monkeypatch)
double = _install_verifier(fixture, monkeypatch)
fixture.protocol["timeouts"]["control_verification_seconds"] = 899
fixture.protocol_path.write_bytes(_canonical_acquisition(fixture.protocol))
with pytest.raises(
materializer.MaterializationError,
match="fixed V2 acquisition design drifted",
):
_run(fixture)
assert not double.calls
assert not fixture.output.exists()
@pytest.mark.parametrize(
"expected_sha256",
[
"0" * 64,
"not-a-sha256",
],
)
def test_acquisition_protocol_authentication_fails_before_private_work(
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
expected_sha256: str,
) -> None:
fixture = _fixture(tmp_path, monkeypatch)
double = _install_verifier(fixture, monkeypatch)
private_calls: list[str] = []
def fail_if_called(*args: Any, **kwargs: Any) -> Any:
private_calls.append("called")
raise AssertionError("private work must not run before protocol authentication")
monkeypatch.setattr(materializer, "_load_jsonl", fail_if_called)
monkeypatch.setattr(materializer, "_repo_source", fail_if_called)
monkeypatch.setattr(materializer, "_validate_output_destination", fail_if_called)
with pytest.raises(
materializer.MaterializationError,
match=r"^acquisition protocol authentication failed$",
):
materializer.materialize(
protocol_path=fixture.protocol_path,
expected_acquisition_protocol_sha256=expected_sha256,
exposure_ledger_path=tmp_path / "must-not-read-exposure-ledger.json",
rows_path=tmp_path / "must-not-read-rows.jsonl",
selection_path=tmp_path / "must-not-read-selection.json",
source_map_path=tmp_path / "must-not-read-sources.json",
runtime_availability_path=tmp_path / "must-not-read-runtime.json",
catalog_archive_path=tmp_path / "must-not-read-catalog.tar.gz",
output=fixture.output,
failure_evidence_output=tmp_path / "failure-evidence",
swebench_checkout=tmp_path / "must-not-use-swebench",
swebench_python=tmp_path / "must-not-use-python",
docker_cli=tmp_path / "must-not-use-docker",
docker_host=fixture.docker_host,
)
assert not private_calls
assert not double.calls
assert not fixture.output.exists()
def test_acquisition_protocol_byte_drift_is_rejected_before_private_work(
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
fixture = _fixture(tmp_path, monkeypatch)
expected_sha256 = hashlib.sha256(fixture.protocol_path.read_bytes()).hexdigest()
double = _install_verifier(fixture, monkeypatch)
fixture.protocol_path.write_bytes(fixture.protocol_path.read_bytes() + b"\n")
with pytest.raises(
materializer.MaterializationError,
match=r"^acquisition protocol authentication failed$",
):
materializer.materialize(
protocol_path=fixture.protocol_path,
expected_acquisition_protocol_sha256=expected_sha256,
exposure_ledger_path=fixture.exposure_ledger,
rows_path=fixture.rows_path,
selection_path=fixture.selection_path,
source_map_path=fixture.source_map,
runtime_availability_path=fixture.runtime,
catalog_archive_path=fixture.archive,
output=fixture.output,
failure_evidence_output=tmp_path / "failure-evidence",
swebench_checkout=fixture.swebench_checkout,
swebench_python=fixture.swebench_python,
docker_cli=fixture.docker_cli,
docker_host=fixture.docker_host,
)
assert not double.calls
assert not fixture.output.exists()
def test_requires_complete_pinned_verifier_identity_before_private_work(
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
fixture = _fixture(tmp_path, monkeypatch)
double = _install_verifier(fixture, monkeypatch)
del fixture.protocol[materializer.VERIFIER_PROTOCOL_KEY]["bridge_sha256"]
fixture.protocol_path.write_bytes(_canonical_acquisition(fixture.protocol))
with pytest.raises(materializer.MaterializationError, match="unsupported shape"):
_run(fixture)
assert not double.calls
assert not fixture.output.exists()
@pytest.mark.parametrize(
"mutate",
[
lambda protocol: protocol["execution_inputs"].update(extra=None),
lambda protocol: protocol["product_inputs"].update(extra="0" * 64),
],
)
def test_rejects_protocol_shapes_the_freezer_would_reject_before_private_work(
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
mutate: Any,
) -> None:
fixture = _fixture(tmp_path, monkeypatch)
double = _install_verifier(fixture, monkeypatch)
mutate(fixture.protocol)
fixture.protocol_path.write_bytes(_canonical_acquisition(fixture.protocol))
with pytest.raises(materializer.MaterializationError, match="fresh supported V2"):
_run(fixture)
assert not double.calls
assert not fixture.output.exists()
def test_cli_failure_suppresses_private_identifiers_and_tasks(
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
capsys: pytest.CaptureFixture[str],
) -> None:
fixture = _fixture(tmp_path, monkeypatch)
fixture.protocol["timeouts"]["control_verification_seconds"] = 899
fixture.protocol_path.write_bytes(_canonical_acquisition(fixture.protocol))
with pytest.raises(SystemExit) as raised:
materializer.main(
[
"--protocol",
str(fixture.protocol_path),
"--expected-acquisition-protocol-sha256",
hashlib.sha256(fixture.protocol_path.read_bytes()).hexdigest(),
"--exposure-ledger",
str(fixture.exposure_ledger),
"--rows",
str(fixture.rows_path),
"--selection",
str(fixture.selection_path),
"--source-map",
str(fixture.source_map),
"--runtime-availability",
str(fixture.runtime),
"--catalog-archive",
str(fixture.archive),
"--output",
str(fixture.output),
"--swebench-checkout",
str(fixture.swebench_checkout),
"--swebench-python",
str(fixture.swebench_python),
"--docker-cli",
str(fixture.docker_cli),
"--docker-host",
fixture.docker_host,
]
)
assert raised.value.code == 2
captured = capsys.readouterr()
combined = captured.out + captured.err
assert "PRIVATE-HOLDOUT-TASK" not in combined
assert "private-holdout-" not in combined
assert "owner/repo-" not in combined