Files
hermes-agent/tests/hermes_cli/test_update_unit_client_budget.py
T
doryani-agent 2a980fbcbd fix(update): let systemd clients outwait legitimate unit transactions
Salvage the unit-budget implementation from #104745, replacing its test
matrix with two invariant tests and covering the sibling graceful start.
Keep unprivileged property reads, finite fallbacks, real manager errors,
and post-restart health verification.

Native disposable user unit: old client timed out after 15.03 seconds;
new client completed the same 16-second stop transaction in 16.13 seconds.
The unit stayed active with a new PID; missing-unit errors stayed errors.

Co-authored-by: Teknium <127238744+teknium1@users.noreply.github.com>
2026-09-07 08:20:09 -07:00

62 lines
2.8 KiB
Python

"""Update clients cover unit transactions without hiding manager failures."""
import subprocess
import pytest
from hermes_cli import update_cmd_fleet as fleet
@pytest.mark.parametrize("graceful,retry", [(False, False), (False, True), (True, False)])
def test_unit_transaction_budget_preserves_scope_and_health(monkeypatch, graceful, retry):
scope = ["systemctl", "--no-ask-password"]
manage = ["sudo", "-n", *scope]
calls = []
def systemctl(cmd, *, timeout):
calls.append((cmd, timeout))
if "show" in cmd:
assert cmd[:len(scope)] == scope
output = "42" if "--property=MainPID" in cmd else "TimeoutStopUSec=70s\nTimeoutStartUSec=90s"
return subprocess.CompletedProcess(cmd, 0, output, "")
if "restart" in cmd or "start" in cmd:
assert cmd[:len(manage)] == manage
assert timeout > (90 if graceful else 160)
return subprocess.CompletedProcess(cmd, 0, "active", "")
monkeypatch.setattr(fleet, "_systemctl", systemctl)
monkeypatch.setattr(fleet, "_drain_or_signal_gateway_for_update", lambda *a: True)
health = iter([False, True] if retry else [True])
monkeypatch.setattr(fleet, "_wait_for_service_active", lambda *a, **kw: next(health))
name = "hermes-gateway-test" if graceful else "hermes-serve-test"
restarted, failed = [], []
fleet._restart_one_systemd_gateway_unit(
name, scope="system", scope_cmd=scope, drain_budget=45,
_manage_cmd_cache={"system": manage}, restarted_services=restarted,
failed_or_stale_units=failed,
)
assert restarted == [name] and not failed
assert sum("restart" in cmd or "start" in cmd for cmd, _ in calls) == (2 if retry else 1)
@pytest.mark.parametrize("limits", ["", "TimeoutStopUSec=infinity\nTimeoutStartUSec=invalid", "TimeoutStopUSec=70000000\nTimeoutStartUSec=90s"])
@pytest.mark.parametrize("outcome", [0, 7, "timeout"])
def test_budget_fallback_keeps_real_errors(monkeypatch, limits, outcome):
def systemctl(cmd, *, timeout):
if "show" in cmd:
return subprocess.CompletedProcess(cmd, 0, limits, "")
if "restart" in cmd:
assert 160 < timeout < 2**31 / 1000
if outcome == "timeout":
raise subprocess.TimeoutExpired(cmd, timeout)
return subprocess.CompletedProcess(cmd, outcome, "", "manager diagnostic")
return subprocess.CompletedProcess(cmd, 0, "", "")
monkeypatch.setattr(fleet, "_systemctl", systemctl)
if outcome == "timeout":
with pytest.raises(subprocess.TimeoutExpired):
fleet._systemctl_reset_and_restart(["systemctl"], "hermes-serve-test")
else:
result = fleet._systemctl_reset_and_restart(["systemctl"], "hermes-serve-test")
assert result.returncode == outcome
assert result.stderr == "manager diagnostic"