FreedomBox/plinth/tests/test_daemon.py
Sunil Mohan Adapa 61ff15a04f
*: Use action_utils.run instead of subprocess.run
- This is to capture stdout and stderr and transmit that from privileged daemon
back to the service to be displayed in HTML.

Tests:

- Unit tests and code checks pass.

- Some of the modified actions work as expected.

Signed-off-by: Sunil Mohan Adapa <sunil@medhas.org>
Reviewed-by: Veiko Aasa <veiko17@disroot.org>
2025-09-29 16:58:53 +03:00

433 lines
17 KiB
Python

# SPDX-License-Identifier: AGPL-3.0-or-later
"""
Test module for component managing system daemons and other systemd units.
"""
import socket
import subprocess
from unittest.mock import Mock, call, patch
import pytest
from plinth.app import App, FollowerComponent, Info
from plinth.daemon import (Daemon, RelatedDaemon, SharedDaemon, app_is_running,
diagnose_netcat, diagnose_port_listening)
from plinth.diagnostic_check import DiagnosticCheck, Result
privileged_modules_to_mock = ['plinth.privileged.service']
class AppTest(App):
"""Test application that contains a daemon."""
app_id = 'test-app'
@pytest.fixture(name='daemon')
def fixture_daemon():
"""Create a test daemon object."""
return Daemon('test-daemon', 'test-unit')
@pytest.fixture(name='app_list')
def fixture_app_list(daemon):
"""A list of apps on which tests are to be run."""
app1 = AppTest()
app1.add(Info('test-app', 1))
app1.add(daemon)
with patch('plinth.app.App.list') as app_list:
app_list.return_value = [app1]
yield app_list
def test_initialization():
"""Test that component is initialized properly."""
with pytest.raises(ValueError):
Daemon(None, None)
daemon = Daemon('test-daemon', 'test-unit')
assert daemon.component_id == 'test-daemon'
assert daemon.unit == 'test-unit'
assert not daemon.strict_check
assert daemon.listen_ports == []
assert daemon.alias is None
listen_ports = [(345, 'tcp4'), (123, 'udp')]
daemon = Daemon('test-daemon', 'test-unit', strict_check=True,
listen_ports=listen_ports, alias='test-unit-2')
assert daemon.strict_check
assert daemon.listen_ports == listen_ports
assert daemon.alias == 'test-unit-2'
@patch('plinth.action_utils.service_is_enabled')
def test_is_enabled(service_is_enabled, daemon):
"""Test that daemon enabled check works."""
service_is_enabled.return_value = True
assert daemon.is_enabled()
service_is_enabled.assert_has_calls(
[call('test-unit', strict_check=False)])
service_is_enabled.return_value = False
assert not daemon.is_enabled()
service_is_enabled.reset_mock()
daemon.strict_check = True
daemon.is_enabled()
service_is_enabled.assert_has_calls([call('test-unit', strict_check=True)])
@patch('plinth.app.apps_init')
@patch('subprocess.run')
def test_enable(subprocess_run, apps_init, app_list, mock_privileged, daemon):
"""Test that enabling the daemon works."""
common_args1 = dict(stdout=subprocess.PIPE, stderr=subprocess.PIPE,
check=False)
common_args2 = dict(stdout=subprocess.DEVNULL, stderr=subprocess.PIPE,
check=False)
daemon.enable()
subprocess_run.assert_has_calls(
[call(['systemctl', 'enable', 'test-unit'], **common_args1)])
subprocess_run.assert_any_call(['systemctl', 'start', 'test-unit'],
**common_args2)
subprocess_run.reset_mock()
daemon.alias = 'test-unit-2'
daemon.enable()
subprocess_run.assert_has_calls([
call(['systemctl', 'enable', 'test-unit'], **common_args1),
call(['systemctl', 'start', 'test-unit'], **common_args2),
call(['systemctl', 'enable', 'test-unit-2'], **common_args1),
call(['systemctl', 'start', 'test-unit-2'], **common_args2),
])
subprocess_run.assert_any_call(['systemctl', 'start', 'test-unit'],
**common_args2)
subprocess_run.assert_any_call(['systemctl', 'start', 'test-unit-2'],
**common_args2)
@patch('plinth.app.apps_init')
@patch('subprocess.run')
def test_disable(subprocess_run, apps_init, app_list, mock_privileged, daemon):
"""Test that disabling the daemon works."""
common_args1 = dict(stdout=subprocess.PIPE, stderr=subprocess.PIPE,
check=False)
common_args2 = dict(stdout=subprocess.DEVNULL, stderr=subprocess.PIPE,
check=False)
daemon.disable()
subprocess_run.assert_has_calls(
[call(['systemctl', 'disable', 'test-unit'], **common_args1)])
subprocess_run.assert_any_call(['systemctl', 'stop', 'test-unit'],
**common_args2)
subprocess_run.reset_mock()
daemon.alias = 'test-unit-2'
daemon.disable()
subprocess_run.assert_has_calls([
call(['systemctl', 'disable', 'test-unit'], **common_args1),
call(['systemctl', 'stop', 'test-unit'], **common_args2),
call(['systemctl', 'disable', 'test-unit-2'], **common_args1),
call(['systemctl', 'stop', 'test-unit-2'], **common_args2),
])
subprocess_run.assert_any_call(['systemctl', 'stop', 'test-unit'],
**common_args2)
subprocess_run.assert_any_call(['systemctl', 'stop', 'test-unit-2'],
**common_args2)
@patch('plinth.action_utils.service_is_running')
def test_is_running(service_is_running, daemon):
"""Test that checking that the daemon is running works."""
service_is_running.return_value = True
assert daemon.is_running()
service_is_running.assert_has_calls([call('test-unit')])
service_is_running.return_value = False
assert not daemon.is_running()
@patch('plinth.app.apps_init')
@patch('plinth.action_utils.service_is_running')
@patch('subprocess.run')
def test_ensure_running(subprocess_run, service_is_running, apps_init,
app_list, mock_privileged, daemon):
"""Test that checking that the daemon is running works."""
common_args1 = dict(stdout=subprocess.PIPE, stderr=subprocess.PIPE,
check=False)
common_args2 = dict(stdout=subprocess.DEVNULL, stderr=subprocess.PIPE,
check=False)
service_is_running.return_value = True
with daemon.ensure_running() as starting_state:
assert starting_state
assert not subprocess_run.called
assert not subprocess_run.called
service_is_running.return_value = False
with daemon.ensure_running() as starting_state:
assert not starting_state
assert subprocess_run.mock_calls == [
call(['systemctl', 'enable', 'test-unit'], **common_args1),
call(['systemctl', 'start', 'test-unit'], **common_args2),
]
subprocess_run.reset_mock()
assert subprocess_run.mock_calls == [
call(['systemctl', 'disable', 'test-unit'], **common_args1),
call(['systemctl', 'stop', 'test-unit'], **common_args2),
]
@patch('plinth.action_utils.service_is_running')
@patch('plinth.daemon.diagnose_port_listening')
def test_diagnose(port_listening, service_is_running, daemon):
"""Test running diagnostics."""
def side_effect(port, kind, _listen_address, component_id):
name = f'test-result-{port}-{kind}'
return DiagnosticCheck(name, name, Result.PASSED, {}, component_id)
daemon = Daemon('test-daemon', 'test-unit', listen_ports=[(8273, 'tcp4'),
(345, 'udp')])
port_listening.side_effect = side_effect
service_is_running.return_value = True
results = daemon.diagnose()
assert results == [
DiagnosticCheck('daemon-running-test-unit',
'Service {service_name} is running', Result.PASSED,
{'service_name': 'test-unit'}, 'test-daemon'),
DiagnosticCheck('test-result-8273-tcp4', 'test-result-8273-tcp4',
Result.PASSED, {}, 'test-daemon'),
DiagnosticCheck('test-result-345-udp', 'test-result-345-udp',
Result.PASSED, {}, 'test-daemon')
]
port_listening.assert_has_calls([
call(8273, 'tcp4', None, 'test-daemon'),
call(345, 'udp', None, 'test-daemon')
])
service_is_running.assert_has_calls([call('test-unit')])
service_is_running.return_value = False
results = daemon.diagnose()
assert results[0].result == Result.FAILED
@patch('plinth.action_utils.service_is_running')
def test_app_is_running(service_is_running):
"""Test that checking whether app is running works."""
daemon1 = Daemon('test-daemon-1', 'test-unit-1')
daemon2 = FollowerComponent('test-daemon-2', 'test-unit-2')
daemon2.is_running = Mock()
follower1 = FollowerComponent('test-follower-1')
class TestApp(App):
"""Test app"""
app_id = 'test-app'
app = TestApp()
app.add(daemon1)
app.add(daemon2)
app.add(follower1)
service_is_running.return_value = True
daemon2.is_running.return_value = False
assert not app_is_running(app)
service_is_running.return_value = False
daemon2.is_running.return_value = False
assert not app_is_running(app)
service_is_running.return_value = True
daemon2.is_running.return_value = True
assert app_is_running(app)
@patch('psutil.net_connections')
def test_diagnose_port_listening(connections):
"""Test running port listening diagnostics test."""
connections.return_value = [
Mock(status='LISTEN', laddr=('0.0.0.0', 1234), family=socket.AF_INET),
Mock(status='ESTABLISHED', laddr=('0.0.0.0', 2345),
family=socket.AF_INET),
Mock(raddr=(), laddr=('0.0.0.0', 3456), family=socket.AF_INET),
Mock(raddr=('1.1.1.1', 53), laddr=('0.0.0.0', 4567),
family=socket.AF_INET),
Mock(status='LISTEN', laddr=('::1', 5678), familiy=socket.AF_INET6),
Mock(status='LISTEN', laddr=('::', 6789), familiy=socket.AF_INET6),
Mock(raddr=(), laddr=('::1', 5678), familiy=socket.AF_INET6),
Mock(raddr=(), laddr=('::', 6789), familiy=socket.AF_INET6),
]
# Check that message is correct
results = diagnose_port_listening(1234)
assert results == DiagnosticCheck('daemon-listening-tcp-1234',
'Listening on {kind} port {port}',
Result.PASSED, {
'kind': 'tcp',
'port': 1234
})
results = diagnose_port_listening(1234, 'tcp', '0.0.0.0')
assert results == DiagnosticCheck(
'daemon-listening-address-tcp-1234-0.0.0.0',
'Listening on {kind} port {listen_address}:{port}', Result.PASSED, {
'kind': 'tcp',
'port': 1234,
'listen_address': '0.0.0.0'
})
# Failed results
results = diagnose_port_listening(4321)
assert results == DiagnosticCheck('daemon-listening-tcp-4321',
'Listening on {kind} port {port}',
Result.FAILED, {
'kind': 'tcp',
'port': 4321
})
results = diagnose_port_listening(4321, 'tcp', '0.0.0.0')
assert results == DiagnosticCheck(
'daemon-listening-address-tcp-4321-0.0.0.0',
'Listening on {kind} port {listen_address}:{port}', Result.FAILED, {
'kind': 'tcp',
'port': 4321,
'listen_address': '0.0.0.0'
})
# Check if psutil call is being made with right argument
results = diagnose_port_listening(1234, 'tcp')
connections.assert_called_with('tcp')
results = diagnose_port_listening(1234, 'tcp4')
connections.assert_called_with('tcp')
results = diagnose_port_listening(1234, 'tcp6')
connections.assert_called_with('tcp6')
results = diagnose_port_listening(3456, 'udp')
connections.assert_called_with('udp')
results = diagnose_port_listening(3456, 'udp4')
connections.assert_called_with('udp')
results = diagnose_port_listening(3456, 'udp6')
connections.assert_called_with('udp6')
# TCP
assert diagnose_port_listening(1234).result == Result.PASSED
assert diagnose_port_listening(1000).result == Result.FAILED
assert diagnose_port_listening(2345).result == Result.FAILED
assert diagnose_port_listening(1234, 'tcp',
'0.0.0.0').result == Result.PASSED
assert diagnose_port_listening(1234, 'tcp',
'1.1.1.1').result == Result.FAILED
assert diagnose_port_listening(1234, 'tcp6').result == Result.PASSED
assert diagnose_port_listening(1234, 'tcp4').result == Result.PASSED
assert diagnose_port_listening(6789, 'tcp4').result == Result.PASSED
assert diagnose_port_listening(5678, 'tcp4').result == Result.FAILED
# UDP
assert diagnose_port_listening(3456, 'udp').result == Result.PASSED
assert diagnose_port_listening(3000, 'udp').result == Result.FAILED
assert diagnose_port_listening(4567, 'udp').result == Result.FAILED
assert diagnose_port_listening(3456, 'udp',
'0.0.0.0').result == Result.PASSED
assert diagnose_port_listening(3456, 'udp',
'1.1.1.1').result == Result.FAILED
assert diagnose_port_listening(3456, 'udp6').result == Result.PASSED
assert diagnose_port_listening(3456, 'udp4').result == Result.PASSED
assert diagnose_port_listening(6789, 'udp4').result == Result.PASSED
assert diagnose_port_listening(5678, 'udp4').result == Result.FAILED
@patch('subprocess.Popen')
def test_diagnose_netcat(popen):
"""Test running diagnostic test using netcat."""
popen().returncode = 0
result = diagnose_netcat('test-host', 3300, remote_input='test-input')
parameters = {'host': 'test-host', 'port': 3300, 'negate': False}
assert result == DiagnosticCheck('daemon-netcat-test-host-3300',
'Connect to {host}:{port}', Result.PASSED,
parameters)
assert popen.mock_calls[1][1] == (['nc', 'test-host', '3300'], )
assert popen.mock_calls[2] == call().communicate(input=b'test-input')
result = diagnose_netcat('test-host', 3300, remote_input='test-input',
negate=True, component_id='test-component')
parameters2 = parameters.copy()
parameters2['negate'] = True
assert result == DiagnosticCheck('daemon-netcat-negate-test-host-3300',
'Cannot connect to {host}:{port}',
Result.FAILED, parameters2,
'test-component')
popen().returncode = 1
result = diagnose_netcat('test-host', 3300, remote_input='test-input')
assert result == DiagnosticCheck('daemon-netcat-test-host-3300',
'Connect to {host}:{port}', Result.FAILED,
parameters)
result = diagnose_netcat('test-host', 3300, remote_input='test-input',
negate=True)
assert result == DiagnosticCheck('daemon-netcat-negate-test-host-3300',
'Cannot connect to {host}:{port}',
Result.PASSED, parameters2)
def test_related_daemon_initialization():
"""Test that initializing related daemon works."""
component = RelatedDaemon('test-component', 'test-daemon')
assert component.component_id == 'test-component'
assert component.unit == 'test-daemon'
with pytest.raises(ValueError):
RelatedDaemon(None, 'test-daemon')
def test_shared_daemon_leader():
"""Test that shared daemon is not a leader component."""
component1 = SharedDaemon('test-component1', 'test-daemon')
assert not component1.is_leader
@patch('plinth.action_utils.service_is_enabled')
def test_shared_daemon_set_enabled(service_is_enabled):
"""Test that enabled status is determined by unit status."""
component = SharedDaemon('test-component', 'test-daemon')
service_is_enabled.return_value = False
component.set_enabled(False)
assert not component.is_enabled()
component.set_enabled(True)
assert not component.is_enabled()
service_is_enabled.return_value = True
component.set_enabled(False)
assert component.is_enabled()
component.set_enabled(True)
assert component.is_enabled()
@patch('plinth.privileged.service.disable')
def test_shared_daemon_disable(disable_method):
"""Test that shared daemon disables service correctly."""
class AppTest2(App):
"""Test application class."""
app_id = 'test-app-2'
component1 = SharedDaemon('test-component1', 'test-daemon')
app1 = AppTest()
app1.add(component1)
app1.is_enabled = Mock()
component2 = SharedDaemon('test-component2', 'test-daemon')
app2 = AppTest2()
app2.add(component2)
# When another app is enabled, service should not be disabled
app1.is_enabled.return_value = True
app2.disable()
assert disable_method.mock_calls == []
# When all other apps are disabled, service should be disabled
disable_method.reset_mock()
app1.is_enabled.return_value = False
app2.disable()
assert disable_method.mock_calls == [call('test-daemon')]