mirror of
https://github.com/jhd3197/ServerKit.git
synced 2026-11-09 05:24:49 +09:00
Juan Denis
89611da9aa
Plan 75 §A2. Four dishonest shapes across doctor/drift/fleet, all converting a failed probe into a determined-looking answer: - except: return []/None/False whose empty result is indistinguishable from a determined negative: a broken Domain query rendered green 'No public site domains to check'; a whole doctor section (setup, extensions) vanished silently on failure; an uninspectable app was dropped from the drift sweep, reading as 'in sync' by omission. - Resolver errors impersonating NXDOMAIN: any getaddrinfo failure reported 'does not resolve', offered repair, and paged admins about domains 'newly stopped resolving' during what was a panel-side DNS outage. Only EAI_NONAME/EAI_NODATA is an unresolved domain now. - Unknown -> False -> 'Not running': a missing systemctl (container, non-systemd init) read as a repairable fail; a failed docker probe read as a green 'Not installed — Minimal profile'; a fleet agent that returned no state for a unit persisted fail 'Not running.' - Fleet default-to-ok: missing status persisted and counted as ok (STATUS_ERROR existed and was never emitted); a failed/timed-out sweep left the server's last all-ok rows standing as current health — a synthetic error row now records that this run couldn't check. Two existing tests changed: one pinned the dishonest behavior itself (is_active False on missing systemctl), one faked NXDOMAIN with a single-arg gaierror (errno=None) — fixture corrected to the real two-arg form, expectation unchanged.
433 lines
20 KiB
Python
433 lines
20 KiB
Python
"""Tests for backend/app/utils/system.py.
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Uses a direct import path so the test can run without Flask dependencies
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(system.py itself has no Flask imports).
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"""
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import importlib
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import os
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import subprocess
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import sys
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from unittest import mock
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from unittest.mock import MagicMock, patch
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import pytest
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# Import system.py directly to avoid triggering app/__init__.py (Flask deps).
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# We register stub entries for 'app' and 'app.utils' so that
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# unittest.mock.patch('app.utils.system.X') can resolve the path without
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# importing the real app package (which needs Flask).
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import types
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_backend = os.path.join(os.path.dirname(__file__), os.pardir)
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_mod_path = os.path.join(_backend, 'app', 'utils', 'system.py')
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_spec = importlib.util.spec_from_file_location('app.utils.system', _mod_path)
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_module = importlib.util.module_from_spec(_spec)
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# Stub parent packages so patch() resolution never hits Flask imports.
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if 'app' not in sys.modules:
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sys.modules['app'] = types.ModuleType('app')
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if 'app.utils' not in sys.modules:
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_utils = types.ModuleType('app.utils')
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sys.modules['app.utils'] = _utils
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sys.modules['app'].utils = _utils # type: ignore[attr-defined]
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sys.modules['app.utils.system'] = _module
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sys.modules['app.utils'].system = _module # type: ignore[attr-defined]
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_spec.loader.exec_module(_module)
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run_privileged = _module.run_privileged
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privileged_cmd = _module.privileged_cmd
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is_command_available = _module.is_command_available
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PackageManager = _module.PackageManager
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ServiceControl = _module.ServiceControl
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# ---------------------------------------------------------------------------
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# run_privileged
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# ---------------------------------------------------------------------------
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class TestRunPrivileged:
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"""Tests for :func:`run_privileged`."""
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@patch('app.utils.system.os.name', 'posix')
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@patch('app.utils.system.shutil.which', return_value='/usr/bin/sudo')
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@patch('app.utils.system.subprocess.run')
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@patch('app.utils.system.os.geteuid', return_value=1000, create=True)
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def test_prepends_sudo_when_not_root(self, _euid, mock_run, _which):
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mock_run.return_value = subprocess.CompletedProcess([], 0)
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run_privileged(['systemctl', 'restart', 'nginx'])
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mock_run.assert_called_once_with(
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['sudo', '-n', 'systemctl', 'restart', 'nginx'],
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capture_output=True, text=True, timeout=_module.DEFAULT_PRIVILEGED_TIMEOUT,
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)
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@patch('app.utils.system.subprocess.run')
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@patch('app.utils.system.os.geteuid', return_value=0, create=True)
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def test_skips_sudo_when_root(self, _euid, mock_run):
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mock_run.return_value = subprocess.CompletedProcess([], 0)
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run_privileged(['systemctl', 'restart', 'nginx'])
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mock_run.assert_called_once_with(
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['systemctl', 'restart', 'nginx'],
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capture_output=True, text=True, timeout=_module.DEFAULT_PRIVILEGED_TIMEOUT,
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)
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@patch('app.utils.system.subprocess.run')
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@patch('app.utils.system.os.geteuid', return_value=1000, create=True)
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def test_no_double_sudo(self, _euid, mock_run):
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mock_run.return_value = subprocess.CompletedProcess([], 0)
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# An explicitly-sudo command is passed through untouched (no `sudo sudo`,
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# and no second-guessing a caller that built its own invocation).
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run_privileged(['sudo', 'systemctl', 'restart', 'nginx'])
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mock_run.assert_called_once_with(
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['sudo', 'systemctl', 'restart', 'nginx'],
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capture_output=True, text=True, timeout=_module.DEFAULT_PRIVILEGED_TIMEOUT,
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)
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@patch('app.utils.system.subprocess.run')
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@patch('app.utils.system.os.geteuid', return_value=1000, create=True)
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def test_defaults_applied(self, _euid, mock_run):
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mock_run.return_value = subprocess.CompletedProcess([], 0)
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run_privileged(['ls'])
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_, kwargs = mock_run.call_args
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assert kwargs['capture_output'] is True
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assert kwargs['text'] is True
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@patch('app.utils.system.subprocess.run')
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@patch('app.utils.system.os.geteuid', return_value=1000, create=True)
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def test_kwargs_passed_through(self, _euid, mock_run):
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mock_run.return_value = subprocess.CompletedProcess([], 0)
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run_privileged(['apt', 'install', '-y', 'foo'], timeout=120, check=True)
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_, kwargs = mock_run.call_args
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assert kwargs['timeout'] == 120
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assert kwargs['check'] is True
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# Output is captured and no terminal is attached, so a command that never
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# returns would hang its caller silently and forever. Every call gets a
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# ceiling unless one is named explicitly.
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@patch('app.utils.system.subprocess.run')
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@patch('app.utils.system.os.geteuid', return_value=1000, create=True)
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def test_default_timeout_applied(self, _euid, mock_run):
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mock_run.return_value = subprocess.CompletedProcess([], 0)
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run_privileged(['systemctl', 'restart', 'nginx'])
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_, kwargs = mock_run.call_args
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assert kwargs['timeout'] == _module.DEFAULT_PRIVILEGED_TIMEOUT
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@patch('app.utils.system.subprocess.run')
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@patch('app.utils.system.os.geteuid', return_value=1000, create=True)
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def test_timeout_can_be_disabled_explicitly(self, _euid, mock_run):
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mock_run.return_value = subprocess.CompletedProcess([], 0)
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run_privileged(['tail', '-f', '/var/log/syslog'], timeout=None)
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_, kwargs = mock_run.call_args
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assert kwargs['timeout'] is None
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@patch('app.utils.system.subprocess.run')
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@patch('app.utils.system.os.geteuid', return_value=1000, create=True)
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def test_caller_can_override_defaults(self, _euid, mock_run):
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mock_run.return_value = subprocess.CompletedProcess([], 0)
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run_privileged(['ls'], capture_output=False)
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_, kwargs = mock_run.call_args
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assert kwargs['capture_output'] is False
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@patch('app.utils.system.os.name', 'posix')
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@patch('app.utils.system.shutil.which', return_value='/usr/bin/sudo')
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@patch('app.utils.system.subprocess.run')
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@patch('app.utils.system.os.geteuid', return_value=1000, create=True)
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def test_string_command_gets_sudo(self, _euid, mock_run, _which):
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mock_run.return_value = subprocess.CompletedProcess([], 0)
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run_privileged('systemctl restart nginx')
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args, _ = mock_run.call_args
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assert args[0] == 'sudo -n systemctl restart nginx'
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# Regression: bare `sudo` blocks forever on a password prompt when the panel
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# runs non-root with output captured — nothing can type the password and
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# nothing can see it. This hung backend startup (metadata guard iptables
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# probe). Every generated sudo invocation must be non-interactive.
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@patch('app.utils.system.os.name', 'posix')
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@patch('app.utils.system.shutil.which', return_value='/usr/bin/sudo')
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@patch('app.utils.system.os.geteuid', return_value=1000, create=True)
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def test_sudo_is_always_non_interactive(self, _euid, _which):
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as_list = privileged_cmd(['iptables', '-C', 'DOCKER-USER'])
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assert as_list[:2] == ['sudo', '-n']
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as_user = privileged_cmd(['whoami'], user='deploy')
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assert as_user[:4] == ['sudo', '-n', '-u', 'deploy']
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as_string = privileged_cmd('iptables -C DOCKER-USER')
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assert as_string.startswith('sudo -n ')
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as_user_string = privileged_cmd('whoami', user='deploy')
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assert as_user_string.startswith('sudo -n -u deploy ')
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@patch('app.utils.system.subprocess.run')
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@patch('app.utils.system.os.geteuid', return_value=1000, create=True)
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def test_string_command_no_double_sudo(self, _euid, mock_run):
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mock_run.return_value = subprocess.CompletedProcess([], 0)
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run_privileged('sudo systemctl restart nginx')
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args, _ = mock_run.call_args
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assert args[0] == 'sudo systemctl restart nginx'
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@patch('app.utils.system.subprocess.run')
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@patch('app.utils.system.os.geteuid', return_value=1000, create=True)
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def test_returns_completed_process(self, _euid, mock_run):
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expected = subprocess.CompletedProcess([], 0, stdout='ok')
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mock_run.return_value = expected
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result = run_privileged(['echo', 'ok'])
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assert result is expected
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# ---------------------------------------------------------------------------
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# is_command_available
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# ---------------------------------------------------------------------------
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class TestIsCommandAvailable:
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"""Tests for :func:`is_command_available`."""
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@patch('app.utils.system.shutil.which', return_value='/usr/bin/nginx')
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def test_found_in_path(self, _which):
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assert is_command_available('nginx') is True
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@patch('app.utils.system.os.path.exists', return_value=True)
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@patch('app.utils.system.shutil.which', return_value=None)
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def test_found_in_common_paths(self, _which, _exists):
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assert is_command_available('firewall-cmd') is True
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@patch('app.utils.system.os.path.exists', return_value=False)
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@patch('app.utils.system.shutil.which', return_value=None)
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def test_not_found(self, _which, _exists):
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assert is_command_available('nonexistent') is False
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# ---------------------------------------------------------------------------
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# PackageManager
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# ---------------------------------------------------------------------------
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class TestPackageManager:
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"""Tests for :class:`PackageManager`."""
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def setup_method(self):
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PackageManager.reset_cache()
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@patch('app.utils.system.shutil.which', side_effect=lambda c: '/usr/bin/apt' if c == 'apt' else None)
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def test_detect_apt(self, _which):
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assert PackageManager.detect() == 'apt'
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@patch('app.utils.system.shutil.which', side_effect=lambda c: '/usr/bin/dnf' if c == 'dnf' else None)
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def test_detect_dnf(self, _which):
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assert PackageManager.detect() == 'dnf'
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@patch('app.utils.system.shutil.which', return_value=None)
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def test_detect_none(self, _which):
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assert PackageManager.detect() is None
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@patch('app.utils.system.shutil.which', side_effect=lambda c: '/usr/bin/apt' if c == 'apt' else None)
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def test_is_available_true(self, _which):
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assert PackageManager.is_available() is True
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@patch('app.utils.system.shutil.which', return_value=None)
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def test_is_available_false(self, _which):
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assert PackageManager.is_available() is False
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@patch('app.utils.system.shutil.which', side_effect=lambda c: '/usr/bin/apt' if c == 'apt' else None)
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def test_detect_caches(self, mock_which):
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PackageManager.detect()
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PackageManager.detect()
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# shutil.which should only be called during the first detect()
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assert mock_which.call_count <= 3 # at most apt/dnf/yum on first call
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# -- is_installed --
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@patch('app.utils.system.subprocess.run')
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@patch('app.utils.system.shutil.which', side_effect=lambda c: '/usr/bin/apt' if c == 'apt' else None)
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def test_is_installed_apt_true(self, _which, mock_run):
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mock_run.return_value = subprocess.CompletedProcess(
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[], 0, stdout='Status: install ok installed\n',
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)
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assert PackageManager.is_installed('nginx') is True
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mock_run.assert_called_once_with(
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['dpkg', '-s', 'nginx'], capture_output=True, text=True, timeout=_module.PROBE_TIMEOUT,
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)
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@patch('app.utils.system.subprocess.run')
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@patch('app.utils.system.shutil.which', side_effect=lambda c: '/usr/bin/apt' if c == 'apt' else None)
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def test_is_installed_apt_false(self, _which, mock_run):
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mock_run.return_value = subprocess.CompletedProcess([], 1, stdout='')
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assert PackageManager.is_installed('nginx') is False
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@patch('app.utils.system.subprocess.run', side_effect=FileNotFoundError)
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@patch('app.utils.system.shutil.which', side_effect=lambda c: '/usr/bin/apt' if c == 'apt' else None)
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def test_is_installed_apt_dpkg_missing(self, _which, _run):
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assert PackageManager.is_installed('nginx') is False
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@patch('app.utils.system.subprocess.run')
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@patch('app.utils.system.shutil.which', side_effect=lambda c: '/usr/bin/dnf' if c == 'dnf' else None)
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def test_is_installed_rpm_true(self, _which, mock_run):
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mock_run.return_value = subprocess.CompletedProcess([], 0, stdout='nginx-1.0\n')
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assert PackageManager.is_installed('nginx') is True
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@patch('app.utils.system.subprocess.run', side_effect=FileNotFoundError)
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@patch('app.utils.system.shutil.which', side_effect=lambda c: '/usr/bin/dnf' if c == 'dnf' else None)
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def test_is_installed_rpm_missing(self, _which, _run):
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assert PackageManager.is_installed('nginx') is False
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@patch('app.utils.system.shutil.which', return_value=None)
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def test_is_installed_no_manager(self, _which):
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assert PackageManager.is_installed('nginx') is False
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# -- install --
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@patch('app.utils.system.os.name', 'posix')
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@patch('app.utils.system.subprocess.run')
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@patch('app.utils.system.os.geteuid', return_value=1000, create=True)
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@patch('app.utils.system.shutil.which', side_effect=lambda c: '/usr/bin/apt' if c == 'apt' else ('/usr/bin/sudo' if c == 'sudo' else None))
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def test_install_apt(self, _which, _euid, mock_run):
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mock_run.return_value = subprocess.CompletedProcess([], 0)
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result = PackageManager.install(['nginx', 'curl'])
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mock_run.assert_called_once_with(
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['sudo', '-n', 'apt', 'install', '-y', 'nginx', 'curl'],
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capture_output=True, text=True, timeout=300,
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)
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@patch('app.utils.system.os.name', 'posix')
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@patch('app.utils.system.subprocess.run')
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@patch('app.utils.system.os.geteuid', return_value=1000, create=True)
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@patch('app.utils.system.shutil.which', side_effect=lambda c: '/usr/bin/dnf' if c == 'dnf' else ('/usr/bin/sudo' if c == 'sudo' else None))
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def test_install_dnf(self, _which, _euid, mock_run):
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mock_run.return_value = subprocess.CompletedProcess([], 0)
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PackageManager.install('nginx')
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args = mock_run.call_args[0][0]
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assert args == ['sudo', '-n', 'dnf', 'install', '-y', 'nginx']
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@patch('app.utils.system.shutil.which', return_value=None)
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def test_install_no_manager_raises(self, _which):
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with pytest.raises(RuntimeError, match='No supported package manager'):
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PackageManager.install('nginx')
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# ---------------------------------------------------------------------------
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# ServiceControl
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# ---------------------------------------------------------------------------
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class TestServiceControl:
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"""Tests for :class:`ServiceControl`."""
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@patch('app.utils.system.os.name', 'posix')
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@patch('app.utils.system.shutil.which', return_value='/usr/bin/sudo')
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@patch('app.utils.system.subprocess.run')
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@patch('app.utils.system.os.geteuid', return_value=1000, create=True)
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def test_start(self, _euid, mock_run, _which):
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mock_run.return_value = subprocess.CompletedProcess([], 0)
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ServiceControl.start('nginx')
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mock_run.assert_called_once_with(
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['sudo', '-n', 'systemctl', 'start', 'nginx'],
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capture_output=True, text=True, timeout=_module.DEFAULT_PRIVILEGED_TIMEOUT,
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)
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@patch('app.utils.system.os.name', 'posix')
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@patch('app.utils.system.shutil.which', return_value='/usr/bin/sudo')
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@patch('app.utils.system.subprocess.run')
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@patch('app.utils.system.os.geteuid', return_value=1000, create=True)
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def test_stop(self, _euid, mock_run, _which):
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mock_run.return_value = subprocess.CompletedProcess([], 0)
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ServiceControl.stop('nginx')
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mock_run.assert_called_once_with(
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['sudo', '-n', 'systemctl', 'stop', 'nginx'],
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capture_output=True, text=True, timeout=_module.DEFAULT_PRIVILEGED_TIMEOUT,
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)
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@patch('app.utils.system.os.name', 'posix')
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@patch('app.utils.system.shutil.which', return_value='/usr/bin/sudo')
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@patch('app.utils.system.subprocess.run')
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@patch('app.utils.system.os.geteuid', return_value=1000, create=True)
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def test_restart(self, _euid, mock_run, _which):
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mock_run.return_value = subprocess.CompletedProcess([], 0)
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ServiceControl.restart('nginx')
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mock_run.assert_called_once_with(
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['sudo', '-n', 'systemctl', 'restart', 'nginx'],
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capture_output=True, text=True, timeout=_module.DEFAULT_PRIVILEGED_TIMEOUT,
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)
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@patch('app.utils.system.os.name', 'posix')
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@patch('app.utils.system.shutil.which', return_value='/usr/bin/sudo')
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@patch('app.utils.system.subprocess.run')
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@patch('app.utils.system.os.geteuid', return_value=1000, create=True)
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def test_reload(self, _euid, mock_run, _which):
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mock_run.return_value = subprocess.CompletedProcess([], 0)
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ServiceControl.reload('nginx')
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mock_run.assert_called_once_with(
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['sudo', '-n', 'systemctl', 'reload', 'nginx'],
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capture_output=True, text=True, timeout=_module.DEFAULT_PRIVILEGED_TIMEOUT,
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)
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@patch('app.utils.system.os.name', 'posix')
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@patch('app.utils.system.shutil.which', return_value='/usr/bin/sudo')
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@patch('app.utils.system.subprocess.run')
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@patch('app.utils.system.os.geteuid', return_value=1000, create=True)
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def test_enable(self, _euid, mock_run, _which):
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mock_run.return_value = subprocess.CompletedProcess([], 0)
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ServiceControl.enable('nginx')
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mock_run.assert_called_once_with(
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['sudo', '-n', 'systemctl', 'enable', 'nginx'],
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capture_output=True, text=True, timeout=_module.DEFAULT_PRIVILEGED_TIMEOUT,
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)
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@patch('app.utils.system.os.name', 'posix')
|
|
@patch('app.utils.system.shutil.which', return_value='/usr/bin/sudo')
|
|
@patch('app.utils.system.subprocess.run')
|
|
@patch('app.utils.system.os.geteuid', return_value=1000, create=True)
|
|
def test_disable(self, _euid, mock_run, _which):
|
|
mock_run.return_value = subprocess.CompletedProcess([], 0)
|
|
ServiceControl.disable('nginx')
|
|
mock_run.assert_called_once_with(
|
|
['sudo', '-n', 'systemctl', 'disable', 'nginx'],
|
|
capture_output=True, text=True, timeout=_module.DEFAULT_PRIVILEGED_TIMEOUT,
|
|
)
|
|
|
|
@patch('app.utils.system.os.name', 'posix')
|
|
@patch('app.utils.system.shutil.which', return_value='/usr/bin/sudo')
|
|
@patch('app.utils.system.subprocess.run')
|
|
@patch('app.utils.system.os.geteuid', return_value=1000, create=True)
|
|
def test_daemon_reload(self, _euid, mock_run, _which):
|
|
mock_run.return_value = subprocess.CompletedProcess([], 0)
|
|
ServiceControl.daemon_reload()
|
|
mock_run.assert_called_once_with(
|
|
['sudo', '-n', 'systemctl', 'daemon-reload'],
|
|
capture_output=True, text=True, timeout=_module.DEFAULT_PRIVILEGED_TIMEOUT,
|
|
)
|
|
|
|
@patch('app.utils.system.subprocess.run')
|
|
@patch('app.utils.system.os.geteuid', return_value=1000, create=True)
|
|
def test_restart_with_kwargs(self, _euid, mock_run):
|
|
mock_run.return_value = subprocess.CompletedProcess([], 0)
|
|
ServiceControl.restart('nginx', check=True, timeout=30)
|
|
_, kwargs = mock_run.call_args
|
|
assert kwargs['check'] is True
|
|
assert kwargs['timeout'] == 30
|
|
|
|
@patch('app.utils.system.subprocess.run')
|
|
def test_is_active_true(self, mock_run):
|
|
mock_run.return_value = subprocess.CompletedProcess([], 0, stdout='active\n')
|
|
assert ServiceControl.is_active('nginx') is True
|
|
|
|
@patch('app.utils.system.subprocess.run')
|
|
def test_is_active_false(self, mock_run):
|
|
mock_run.return_value = subprocess.CompletedProcess([], 3, stdout='inactive\n')
|
|
assert ServiceControl.is_active('nginx') is False
|
|
|
|
@patch('app.utils.system.subprocess.run', side_effect=FileNotFoundError)
|
|
def test_is_active_missing_systemctl(self, _run):
|
|
"""A host without systemctl is "could not check", not "not running" —
|
|
the error propagates so the doctor can render a warn row."""
|
|
with pytest.raises(FileNotFoundError):
|
|
ServiceControl.is_active('nginx')
|
|
|
|
@patch('app.utils.system.subprocess.run')
|
|
def test_is_enabled_true(self, mock_run):
|
|
mock_run.return_value = subprocess.CompletedProcess([], 0, stdout='enabled\n')
|
|
assert ServiceControl.is_enabled('nginx') is True
|
|
|
|
@patch('app.utils.system.subprocess.run')
|
|
def test_is_enabled_false(self, mock_run):
|
|
mock_run.return_value = subprocess.CompletedProcess([], 1, stdout='disabled\n')
|
|
assert ServiceControl.is_enabled('nginx') is False
|
|
|
|
@patch('app.utils.system.subprocess.run', side_effect=FileNotFoundError)
|
|
def test_is_enabled_missing_systemctl(self, _run):
|
|
assert ServiceControl.is_enabled('nginx') is False
|