hermes-agent/tests/tools/test_write_deny.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

95 lines
3.6 KiB
Python

"""Tests for _is_write_denied() — verifies deny list blocks sensitive paths on all platforms."""
import os
from pathlib import Path
from unittest.mock import patch
from tools.file_operations import _is_write_denied
class TestWriteDenyExactPaths:
def test_etc_shadow(self):
assert _is_write_denied("/etc/shadow") is True
def test_ssh_authorized_keys(self):
assert _is_write_denied("~/.ssh/authorized_keys") is True
def test_ssh_id_ed25519(self):
path = os.path.join(str(Path.home()), ".ssh", "id_ed25519")
assert _is_write_denied(path) is True
def test_hermes_root_env_when_running_under_profile(self, tmp_path, monkeypatch):
"""Top-level ``<root>/.env`` stays write-denied even when running under
a profile (#15981).
Before the fix, ``build_write_denied_paths`` only added
``<active_profile>/.env`` to the deny list, so the global
``~/.hermes/.env`` (whose credentials are inherited by every profile)
could be silently overwritten by ``write_file`` while a profile was
active.
"""
root = tmp_path / "hermes_root"
profile_home = root / "profiles" / "coder"
profile_home.mkdir(parents=True)
global_env = root / ".env"
global_env.write_text("OPENAI_API_KEY=sk-real\n")
monkeypatch.setenv("HERMES_HOME", str(profile_home))
# Sanity check: HERMES_HOME does point to the profile dir, not the root.
from hermes_constants import get_hermes_home, get_default_hermes_root
assert get_hermes_home() == profile_home
assert get_default_hermes_root() == root
assert _is_write_denied(str(global_env)) is True
def test_shell_profiles_are_writable(self):
home = str(Path.home())
for name in [".bashrc", ".zshrc", ".profile", ".bash_profile", ".zprofile"]:
assert _is_write_denied(os.path.join(home, name)) is False, f"{name} should be writable"
def test_credential_config_files_denied(self):
home = str(Path.home())
for name in [".netrc", ".pgpass", ".npmrc", ".pypirc"]:
assert _is_write_denied(os.path.join(home, name)) is True, f"{name} should be denied"
class TestWriteDenyPrefixes:
def test_ssh_prefix(self):
path = os.path.join(str(Path.home()), ".ssh", "some_key")
assert _is_write_denied(path) is True
def test_systemd_prefix(self, tmp_path):
# On NixOS, /etc/systemd is a symlink into /nix/store, so
# realpath() resolves it to a store path that doesn't match
# the /etc/systemd/ prefix. Build a real directory tree so
# realpath is a no-op and prefix matching works.
fake_etc = tmp_path / "etc" / "systemd" / "system"
fake_etc.mkdir(parents=True)
target = str(fake_etc / "evil.service")
# Patch the prefix builder to include our tmp_path prefix
import agent.file_safety as _fs
_orig = _fs.build_write_denied_prefixes
_extra_prefix = str(tmp_path / "etc" / "systemd") + os.sep
def _patched(home):
return _orig(home) + [_extra_prefix]
with patch.object(_fs, "build_write_denied_prefixes", _patched):
assert _is_write_denied(target) is True
class TestWriteAllowed:
def test_tmp_file(self):
assert _is_write_denied("/tmp/safe_file.txt") is False
def test_hermes_control_files_requested_writable(self):
from hermes_constants import get_hermes_home
home = get_hermes_home()
for name in ["auth.json", "config.yaml", "webhook_subscriptions.json"]:
assert _is_write_denied(str(home / name)) is False, f"{name} should be writable"