Fixes #1005 Without linger, user-level systemd services stop when the SSH session ends — even though systemctl --user status shows active (running). Changes to systemd_install(): - Try loginctl enable-linger automatically (succeeds when the process has the required privileges) - If loginctl fails (no privileges), print a clear, copy-pasteable warning with the exact command the user must run New helper: _ensure_linger_enabled() - Fast path: checks /var/lib/systemd/linger/<user> (no subprocess) - Auto-enable: loginctl enable-linger <user> - Fallback: actionable warning with sudo command + restart instructions Tests: 4 new tests in TestEnsureLingerEnabled, 205 passed total
121 lines
4.9 KiB
Python
121 lines
4.9 KiB
Python
"""Tests for gateway linger auto-enable behavior on headless Linux installs."""
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from types import SimpleNamespace
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import hermes_cli.gateway as gateway
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class TestEnsureLingerEnabled:
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def test_linger_already_enabled_via_file(self, monkeypatch, capsys):
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monkeypatch.setattr(gateway, "is_linux", lambda: True)
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monkeypatch.setattr("getpass.getuser", lambda: "testuser")
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monkeypatch.setattr(gateway, "Path", lambda _path: SimpleNamespace(exists=lambda: True))
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calls = []
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monkeypatch.setattr(gateway.subprocess, "run", lambda *args, **kwargs: calls.append((args, kwargs)))
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gateway._ensure_linger_enabled()
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out = capsys.readouterr().out
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assert "Systemd linger is enabled" in out
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assert calls == []
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def test_status_enabled_skips_enable(self, monkeypatch, capsys):
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monkeypatch.setattr(gateway, "is_linux", lambda: True)
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monkeypatch.setattr("getpass.getuser", lambda: "testuser")
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monkeypatch.setattr(gateway, "Path", lambda _path: SimpleNamespace(exists=lambda: False))
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monkeypatch.setattr(gateway, "get_systemd_linger_status", lambda: (True, ""))
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calls = []
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monkeypatch.setattr(gateway.subprocess, "run", lambda *args, **kwargs: calls.append((args, kwargs)))
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gateway._ensure_linger_enabled()
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out = capsys.readouterr().out
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assert "Systemd linger is enabled" in out
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assert calls == []
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def test_loginctl_success_enables_linger(self, monkeypatch, capsys):
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monkeypatch.setattr(gateway, "is_linux", lambda: True)
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monkeypatch.setattr("getpass.getuser", lambda: "testuser")
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monkeypatch.setattr(gateway, "Path", lambda _path: SimpleNamespace(exists=lambda: False))
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monkeypatch.setattr(gateway, "get_systemd_linger_status", lambda: (False, ""))
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monkeypatch.setattr("shutil.which", lambda name: "/usr/bin/loginctl")
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run_calls = []
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def fake_run(cmd, capture_output=False, text=False, check=False):
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run_calls.append((cmd, capture_output, text, check))
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return SimpleNamespace(returncode=0, stdout="", stderr="")
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monkeypatch.setattr(gateway.subprocess, "run", fake_run)
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gateway._ensure_linger_enabled()
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out = capsys.readouterr().out
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assert "Enabling linger" in out
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assert "Linger enabled" in out
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assert run_calls == [(["loginctl", "enable-linger", "testuser"], True, True, False)]
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def test_missing_loginctl_shows_manual_guidance(self, monkeypatch, capsys):
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monkeypatch.setattr(gateway, "is_linux", lambda: True)
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monkeypatch.setattr("getpass.getuser", lambda: "testuser")
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monkeypatch.setattr(gateway, "Path", lambda _path: SimpleNamespace(exists=lambda: False))
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monkeypatch.setattr(gateway, "get_systemd_linger_status", lambda: (None, "loginctl not found"))
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monkeypatch.setattr("shutil.which", lambda name: None)
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calls = []
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monkeypatch.setattr(gateway.subprocess, "run", lambda *args, **kwargs: calls.append((args, kwargs)))
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gateway._ensure_linger_enabled()
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out = capsys.readouterr().out
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assert "sudo loginctl enable-linger testuser" in out
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assert "loginctl not found" in out
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assert calls == []
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def test_loginctl_failure_shows_manual_guidance(self, monkeypatch, capsys):
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monkeypatch.setattr(gateway, "is_linux", lambda: True)
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monkeypatch.setattr("getpass.getuser", lambda: "testuser")
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monkeypatch.setattr(gateway, "Path", lambda _path: SimpleNamespace(exists=lambda: False))
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monkeypatch.setattr(gateway, "get_systemd_linger_status", lambda: (False, ""))
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monkeypatch.setattr("shutil.which", lambda name: "/usr/bin/loginctl")
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monkeypatch.setattr(
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gateway.subprocess,
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"run",
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lambda *args, **kwargs: SimpleNamespace(returncode=1, stdout="", stderr="Permission denied"),
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)
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gateway._ensure_linger_enabled()
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out = capsys.readouterr().out
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assert "sudo loginctl enable-linger testuser" in out
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assert "Permission denied" in out
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def test_systemd_install_calls_linger_helper(monkeypatch, tmp_path, capsys):
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unit_path = tmp_path / "systemd" / "user" / "hermes-gateway.service"
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monkeypatch.setattr(gateway, "get_systemd_unit_path", lambda: unit_path)
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calls = []
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def fake_run(cmd, check=False, **kwargs):
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calls.append((cmd, check))
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return SimpleNamespace(returncode=0, stdout="", stderr="")
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helper_calls = []
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monkeypatch.setattr(gateway.subprocess, "run", fake_run)
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monkeypatch.setattr(gateway, "_ensure_linger_enabled", lambda: helper_calls.append(True))
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gateway.systemd_install(force=False)
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out = capsys.readouterr().out
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assert unit_path.exists()
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assert [cmd for cmd, _ in calls] == [
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["systemctl", "--user", "daemon-reload"],
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["systemctl", "--user", "enable", gateway.SERVICE_NAME],
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]
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assert helper_calls == [True]
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assert "Service installed and enabled" in out
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