hermes-agent/tests/tools/test_write_file_syntax_gate.py
Teknium 39975613b1
test: prune wave 2 + speed fixes — 28,106 → 19,757 test functions, suite wall 315s → 294s
Second, deeper pass over tools/gateway/hermes_cli plus first pass over
the trees wave 1 missed (acp, acp_adapter, skills, computer_use, docker,
dashboard, conformance, monitoring, secret_sources, hermes_state,
providers). Same rubric as wave 1 (AGENTS.md test policy); security,
alternation/caching invariants, issue-number regressions, and E2E kept.

Real test-quality fixes found and rooted out along the way:
- tests/tools/test_command_guards.py made real auxiliary-LLM HTTPS calls
  (DEFAULT_CONFIG smart-approval leaked in) — pinned approval
  mode=manual via autouse fixture: 17.4s → 0.4s.
- test_model_switch_custom_providers.py / test_user_providers_model_switch.py
  silently probed live provider catalogs (~2s/test) — stubbed
  cached_provider_model_ids/provider_model_ids/fetch_api_models.
- test_telegram_noise_filter.py: 15-platform copy-paste matrix over
  shared gateway.run logic → 3 representative platforms (55s → 3.9s).
- test_gateway_shutdown.py: stop()'s 5s interrupt-deadline loop spun on
  MagicMock agents — interrupt.side_effect now clears _running_agents
  (22s → 1.0s).
- test_gateway_inactivity_timeout.py poll-harness timings shrunk 3-5x
  (24s → 1.1s); test_mcp_stability.py backoff/SIGTERM-grace sleeps
  patched (15.4s → 2.5s); test_async_delegation.py negative-drain wait
  5s → 0.5s.
- test_telegram_init_deadline.py: loop-block margin restored to 1.0s
  with rationale comment — the watchdog-dump assertion needs the loop
  blocked well past deadline+grace under parallel load (flaked once in
  the 40-worker verification run at a 0.2s margin).

Verification: full hermetic suite via scripts/run_tests.sh —
2,438 files, 21,718 tests passed, 0 failed, 293.9s wall.
Suite totals vs original baseline: 46,820 → 19,757 test functions
(−57.8%), wall 583.5s → 293.9s (−50%), subprocess CPU 13,564s → 11,623s.
2026-07-29 13:39:40 -07:00

76 lines
3 KiB
Python

"""Tests for the fail-closed pre-write syntax gate on write_file.
Structured formats with an in-process linter (JSON/YAML/TOML) are validated
BEFORE any bytes touch disk: a candidate write that doesn't parse is refused
outright -- nothing lands on disk -- instead of being written and merely
reported afterward via the post-write lint delta.
These run against a REAL LocalEnvironment (actual shell commands / actual
files under tmp_path), matching the existing pattern in
tests/tools/test_file_write_safety.py::TestAtomicWrite.
"""
import json
from pathlib import Path
import pytest
from tools.environments.local import LocalEnvironment
from tools.file_operations import ShellFileOperations
@pytest.fixture
def ops(tmp_path: Path):
env = LocalEnvironment(cwd=str(tmp_path))
return ShellFileOperations(env, cwd=str(tmp_path))
class TestFailClosedSyntaxGate:
def test_invalid_json_refused_file_not_created(self, ops, tmp_path: Path):
target = tmp_path / "config.json"
res = ops.write_file(str(target), '{"a": 1,') # truncated / invalid
assert res.error is not None
assert "json" in res.error.lower()
assert not target.exists(), "invalid JSON must NOT be written to disk"
def test_valid_json_written_exactly(self, ops, tmp_path: Path):
target = tmp_path / "config.json"
content = json.dumps({"a": 1, "b": [1, 2, 3]})
res = ops.write_file(str(target), content)
assert res.error is None, res.error
assert target.read_text() == content
def test_invalid_python_is_NOT_hard_refused(self, ops, tmp_path: Path):
"""Deliberate scope decision: .py keeps the pre-existing NON-BLOCKING
lint-delta report rather than a hard refusal (see
``_FAIL_CLOSED_INPROC_EXTS`` in tools/file_operations.py for why --
this codebase's own test suite writes arbitrary non-Python content
through *.py paths as generic write-mechanics fixtures)."""
target = tmp_path / "broken.py"
bad_python = "def foo(:\n pass\n"
res = ops.write_file(str(target), bad_python)
assert res.error is None, res.error
assert target.read_text() == bad_python
# Still surfaced via the (non-blocking) lint report:
assert res.lint is not None
assert res.lint.get("status") == "error"
assert "SyntaxError" in res.lint.get("output", "")
def test_custom_tagged_yaml_is_valid_and_written(self, ops, tmp_path: Path):
"""Application-defined tags (CloudFormation !Sub/!Ref, Ansible !vault)
are valid YAML syntax; only the *consumer* defines their constructors.
The gate is syntax-only and must let them through."""
target = tmp_path / "template.yaml"
content = (
"Resources:\n"
" Bucket:\n"
" Type: AWS::S3::Bucket\n"
" Properties:\n"
" BucketName: !Sub '${AWS::StackName}-bucket'\n"
)
res = ops.write_file(str(target), content)
assert res.error is None, res.error
assert target.read_text() == content