hermes-agent/tests/hermes_cli/test_gateway_wsl.py
Teknium a8fd7257b1
feat(gateway): WSL-aware gateway with smart systemd detection (#7510)
- Add shared is_wsl() to hermes_constants (like is_termux)
- Update supports_systemd_services() to verify systemd is actually
  running on WSL before returning True
- Add WSL-specific guidance in gateway install/start/setup/status
  for both cases: WSL+systemd and WSL without systemd
- Improve help strings: 'run' now says recommended for WSL/Docker,
  'start'/'install' now mention systemd/launchd explicitly
- Add WSL gateway FAQ section with tmux/nohup/Task Scheduler tips
- Update CLI commands docs with WSL tip
- Deduplicate _is_wsl() from clipboard.py to shared hermes_constants
- Fix clipboard tests to reset hermes_constants cache
- 20 new WSL-specific tests covering detection, systemd check,
  supports_systemd_services integration, and command output

Motivated by user feedback: took 1 hour to figure out run vs start
on WSL, Telegram bot kept disconnecting due to flaky WSL systemd.
2026-04-10 21:15:47 -07:00

279 lines
11 KiB
Python

"""Tests for WSL detection and WSL-aware gateway behavior."""
import io
import subprocess
import sys
from types import SimpleNamespace
from unittest.mock import patch, MagicMock, mock_open
import pytest
import hermes_cli.gateway as gateway
import hermes_constants
# =============================================================================
# is_wsl() in hermes_constants
# =============================================================================
class TestIsWsl:
"""Test the shared is_wsl() utility."""
def setup_method(self):
# Reset cached value between tests
hermes_constants._wsl_detected = None
def test_detects_wsl2(self):
fake_content = (
"Linux version 5.15.146.1-microsoft-standard-WSL2 "
"(gcc (GCC) 11.2.0) #1 SMP Thu Jan 11 04:09:03 UTC 2024\n"
)
with patch("builtins.open", mock_open(read_data=fake_content)):
assert hermes_constants.is_wsl() is True
def test_detects_wsl1(self):
fake_content = (
"Linux version 4.4.0-19041-Microsoft "
"(Microsoft@Microsoft.com) (gcc version 5.4.0) #1\n"
)
with patch("builtins.open", mock_open(read_data=fake_content)):
assert hermes_constants.is_wsl() is True
def test_native_linux(self):
fake_content = (
"Linux version 6.5.0-44-generic (buildd@lcy02-amd64-015) "
"(x86_64-linux-gnu-gcc-12 (Ubuntu 12.3.0-1ubuntu1~22.04) 12.3.0) #44\n"
)
with patch("builtins.open", mock_open(read_data=fake_content)):
assert hermes_constants.is_wsl() is False
def test_no_proc_version(self):
with patch("builtins.open", side_effect=FileNotFoundError):
assert hermes_constants.is_wsl() is False
def test_result_is_cached(self):
"""After first detection, subsequent calls return the cached value."""
hermes_constants._wsl_detected = True
# Even with open raising, cached value is returned
with patch("builtins.open", side_effect=FileNotFoundError):
assert hermes_constants.is_wsl() is True
# =============================================================================
# _wsl_systemd_operational() in gateway
# =============================================================================
class TestWslSystemdOperational:
"""Test the WSL systemd check."""
def test_running(self, monkeypatch):
monkeypatch.setattr(
gateway.subprocess, "run",
lambda *a, **kw: SimpleNamespace(
returncode=0, stdout="running\n", stderr=""
),
)
assert gateway._wsl_systemd_operational() is True
def test_degraded(self, monkeypatch):
monkeypatch.setattr(
gateway.subprocess, "run",
lambda *a, **kw: SimpleNamespace(
returncode=1, stdout="degraded\n", stderr=""
),
)
assert gateway._wsl_systemd_operational() is True
def test_starting(self, monkeypatch):
monkeypatch.setattr(
gateway.subprocess, "run",
lambda *a, **kw: SimpleNamespace(
returncode=1, stdout="starting\n", stderr=""
),
)
assert gateway._wsl_systemd_operational() is True
def test_offline_no_systemd(self, monkeypatch):
monkeypatch.setattr(
gateway.subprocess, "run",
lambda *a, **kw: SimpleNamespace(
returncode=1, stdout="offline\n", stderr=""
),
)
assert gateway._wsl_systemd_operational() is False
def test_systemctl_not_found(self, monkeypatch):
monkeypatch.setattr(
gateway.subprocess, "run",
MagicMock(side_effect=FileNotFoundError),
)
assert gateway._wsl_systemd_operational() is False
def test_timeout(self, monkeypatch):
monkeypatch.setattr(
gateway.subprocess, "run",
MagicMock(side_effect=subprocess.TimeoutExpired("systemctl", 5)),
)
assert gateway._wsl_systemd_operational() is False
# =============================================================================
# supports_systemd_services() WSL integration
# =============================================================================
class TestSupportsSystemdServicesWSL:
"""Test that supports_systemd_services() handles WSL correctly."""
def test_wsl_with_systemd(self, monkeypatch):
"""WSL + working systemd → True."""
monkeypatch.setattr(gateway, "is_linux", lambda: True)
monkeypatch.setattr(gateway, "is_termux", lambda: False)
monkeypatch.setattr(gateway, "is_wsl", lambda: True)
monkeypatch.setattr(gateway, "_wsl_systemd_operational", lambda: True)
assert gateway.supports_systemd_services() is True
def test_wsl_without_systemd(self, monkeypatch):
"""WSL + no systemd → False."""
monkeypatch.setattr(gateway, "is_linux", lambda: True)
monkeypatch.setattr(gateway, "is_termux", lambda: False)
monkeypatch.setattr(gateway, "is_wsl", lambda: True)
monkeypatch.setattr(gateway, "_wsl_systemd_operational", lambda: False)
assert gateway.supports_systemd_services() is False
def test_native_linux(self, monkeypatch):
"""Native Linux (not WSL) → True without checking systemd."""
monkeypatch.setattr(gateway, "is_linux", lambda: True)
monkeypatch.setattr(gateway, "is_termux", lambda: False)
monkeypatch.setattr(gateway, "is_wsl", lambda: False)
assert gateway.supports_systemd_services() is True
def test_termux_still_excluded(self, monkeypatch):
"""Termux → False regardless of WSL status."""
monkeypatch.setattr(gateway, "is_linux", lambda: True)
monkeypatch.setattr(gateway, "is_termux", lambda: True)
assert gateway.supports_systemd_services() is False
# =============================================================================
# WSL messaging in gateway commands
# =============================================================================
class TestGatewayCommandWSLMessages:
"""Test that WSL users see appropriate guidance."""
def test_install_wsl_no_systemd(self, monkeypatch, capsys):
"""hermes gateway install on WSL without systemd shows guidance."""
monkeypatch.setattr(gateway, "is_linux", lambda: True)
monkeypatch.setattr(gateway, "is_termux", lambda: False)
monkeypatch.setattr(gateway, "is_wsl", lambda: True)
monkeypatch.setattr(gateway, "supports_systemd_services", lambda: False)
monkeypatch.setattr(gateway, "is_macos", lambda: False)
monkeypatch.setattr(gateway, "is_managed", lambda: False)
args = SimpleNamespace(
gateway_command="install", force=False, system=False,
run_as_user=None,
)
with pytest.raises(SystemExit) as exc_info:
gateway.gateway_command(args)
assert exc_info.value.code == 1
out = capsys.readouterr().out
assert "WSL detected" in out
assert "systemd is not running" in out
assert "hermes gateway run" in out
assert "tmux" in out
def test_start_wsl_no_systemd(self, monkeypatch, capsys):
"""hermes gateway start on WSL without systemd shows guidance."""
monkeypatch.setattr(gateway, "is_linux", lambda: True)
monkeypatch.setattr(gateway, "is_termux", lambda: False)
monkeypatch.setattr(gateway, "is_wsl", lambda: True)
monkeypatch.setattr(gateway, "supports_systemd_services", lambda: False)
monkeypatch.setattr(gateway, "is_macos", lambda: False)
args = SimpleNamespace(gateway_command="start", system=False)
with pytest.raises(SystemExit) as exc_info:
gateway.gateway_command(args)
assert exc_info.value.code == 1
out = capsys.readouterr().out
assert "WSL detected" in out
assert "hermes gateway run" in out
assert "wsl.conf" in out
def test_install_wsl_with_systemd_warns(self, monkeypatch, capsys):
"""hermes gateway install on WSL with systemd shows warning but proceeds."""
monkeypatch.setattr(gateway, "is_linux", lambda: True)
monkeypatch.setattr(gateway, "is_termux", lambda: False)
monkeypatch.setattr(gateway, "is_wsl", lambda: True)
monkeypatch.setattr(gateway, "supports_systemd_services", lambda: True)
monkeypatch.setattr(gateway, "is_macos", lambda: False)
monkeypatch.setattr(gateway, "is_managed", lambda: False)
# Mock systemd_install to capture call
install_called = []
monkeypatch.setattr(
gateway, "systemd_install",
lambda **kwargs: install_called.append(kwargs),
)
args = SimpleNamespace(
gateway_command="install", force=False, system=False,
run_as_user=None,
)
gateway.gateway_command(args)
out = capsys.readouterr().out
assert "WSL detected" in out
assert "may not survive WSL restarts" in out
assert len(install_called) == 1 # install still proceeded
def test_status_wsl_running_manual(self, monkeypatch, capsys):
"""hermes gateway status on WSL with manual process shows WSL note."""
monkeypatch.setattr(gateway, "supports_systemd_services", lambda: False)
monkeypatch.setattr(gateway, "is_macos", lambda: False)
monkeypatch.setattr(gateway, "is_termux", lambda: False)
monkeypatch.setattr(gateway, "is_wsl", lambda: True)
monkeypatch.setattr(gateway, "find_gateway_pids", lambda: [12345])
monkeypatch.setattr(gateway, "_runtime_health_lines", lambda: [])
# Stub out the systemd unit path check
monkeypatch.setattr(
gateway, "get_systemd_unit_path",
lambda system=False: SimpleNamespace(exists=lambda: False),
)
monkeypatch.setattr(
gateway, "get_launchd_plist_path",
lambda: SimpleNamespace(exists=lambda: False),
)
args = SimpleNamespace(gateway_command="status", deep=False, system=False)
gateway.gateway_command(args)
out = capsys.readouterr().out
assert "WSL note" in out
assert "tmux or screen" in out
def test_status_wsl_not_running(self, monkeypatch, capsys):
"""hermes gateway status on WSL with no process shows WSL start advice."""
monkeypatch.setattr(gateway, "supports_systemd_services", lambda: False)
monkeypatch.setattr(gateway, "is_macos", lambda: False)
monkeypatch.setattr(gateway, "is_termux", lambda: False)
monkeypatch.setattr(gateway, "is_wsl", lambda: True)
monkeypatch.setattr(gateway, "find_gateway_pids", lambda: [])
monkeypatch.setattr(gateway, "_runtime_health_lines", lambda: [])
monkeypatch.setattr(
gateway, "get_systemd_unit_path",
lambda system=False: SimpleNamespace(exists=lambda: False),
)
monkeypatch.setattr(
gateway, "get_launchd_plist_path",
lambda: SimpleNamespace(exists=lambda: False),
)
args = SimpleNamespace(gateway_command="status", deep=False, system=False)
gateway.gateway_command(args)
out = capsys.readouterr().out
assert "hermes gateway run" in out
assert "tmux" in out