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#
# This file is part of Deluge and is licensed under GNU General Public License 3.0, or later, with
# the additional special exception to link portions of this program with the OpenSSL library.
# See LICENSE for more details.
#
import time
from unittest.mock import Mock
import pytest
import pytest_twisted
from twisted.internet import defer, threads
import deluge.component as component
class ComponentTester(component.Component):
def __init__(self, name, depend=None):
super().__init__(name, depend=depend)
event_methods = ('start', 'update', 'pause', 'resume', 'stop', 'shutdown')
for event_method in event_methods:
setattr(self, event_method, Mock())
class ComponentTesterDelayStart(ComponentTester):
def __init__(self, name, depend=None):
super().__init__(name, depend=depend)
self.start = Mock(side_effect=self.delay)
@pytest_twisted.inlineCallbacks
def delay(self):
yield threads.deferToThread(time.sleep, 0.5)
@pytest.mark.usefixtures('component')
class TestComponent:
async def test_start_component(self):
c = ComponentTester('test_start')
await component.start(['test_start'])
assert c._component_state == 'Started'
assert c.start.call_count == 1
async def test_start_stop_depends(self):
c1 = ComponentTester('test_start_depends_c1')
c2 = ComponentTester('test_start_depends_c2', depend=['test_start_depends_c1'])
await component.start('test_start_depends_c2')
assert c1._component_state == 'Started'
assert c2._component_state == 'Started'
assert c1.start.call_count == 1
assert c2.start.call_count == 1
await component.stop(['test_start_depends_c1'])
assert c1._component_state == 'Stopped'
assert c2._component_state == 'Stopped'
assert c1.stop.call_count == 1
assert c2.stop.call_count == 1
async def start_with_depends(self):
c1 = ComponentTesterDelayStart('test_start_all_c1')
c2 = ComponentTester('test_start_all_c2', depend=['test_start_all_c4'])
c3 = ComponentTesterDelayStart(
'test_start_all_c3', depend=['test_start_all_c5', 'test_start_all_c1']
)
c4 = ComponentTester('test_start_all_c4', depend=['test_start_all_c3'])
c5 = ComponentTester('test_start_all_c5')
await component.start()
return c1, c2, c3, c4, c5
def finish_start_with_depends(self, *args):
for c in args[1:]:
component.deregister(c)
async def test_start_all(self):
components = await self.start_with_depends()
for c in components:
assert c._component_state == 'Started'
assert c.start.call_count == 1
self.finish_start_with_depends(components)
def test_register_exception(self):
ComponentTester('test_register_exception')
with pytest.raises(component.ComponentAlreadyRegistered):
ComponentTester(
'test_register_exception',
)
async def test_stop(self):
c = ComponentTester('test_stop')
await component.start(['test_stop'])
assert c._component_state == 'Started'
await component.stop(['test_stop'])
assert c._component_state == 'Stopped'
assert not c._component_timer.running
assert c.stop.call_count == 1
async def test_stop_all(self):
components = await self.start_with_depends()
assert all(c._component_state == 'Started' for c in components)
component.stop()
for c in components:
assert c._component_state == 'Stopped'
assert c.stop.call_count == 1
self.finish_start_with_depends(components)
async def test_update(self):
c = ComponentTester('test_update')
init_update_count = int(c.update.call_count)
await component.start(['test_update'])
assert c._component_timer
assert c._component_timer.running
assert c.update.call_count != init_update_count
await component.stop()
async def test_pause(self):
c = ComponentTester('test_pause')
init_update_count = int(c.update.call_count)
await component.start(['test_pause'])
assert c._component_timer
assert c.update.call_count != init_update_count
await component.pause(['test_pause'])
assert c._component_state == 'Paused'
assert c.pause.call_count == 1
assert c.update.call_count != init_update_count
assert not c._component_timer.running
async def test_resume(self):
c = ComponentTester('test_resume')
await component.start(['test_resume'])
assert c._component_state == 'Started'
await component.pause(['test_resume'])
assert c._component_state == 'Paused'
await component.resume(['test_resume'])
assert c._component_state == 'Started'
assert c.resume.call_count == 1
assert c._component_timer.running
async def test_component_start_error(self):
ComponentTester('test_start_error')
await component.start(['test_start_error'])
await component.pause(['test_start_error'])
test_comp = component.get('test_start_error')
with pytest.raises(component.ComponentException, match='Current state: Paused'):
await test_comp._component_start()
async def test_start_paused_error(self):
name = 'test_pause_error'
ComponentTester(name)
await component.start([name])
await component.pause([name])
(failure, error), *_ = await component.start()
assert (failure, error.type, error.value.message) == (
defer.FAILURE,
component.ComponentException,
(
f'Trying to start component "{name}" but it is '
'not in a stopped state. Current state: Paused'
),
)
async def test_shutdown(self):
c = ComponentTester('test_shutdown')
await component.start(['test_shutdown'])
await component.shutdown()
assert c.shutdown.call_count == 1
assert c._component_state == 'Stopped'
assert not c._component_timer.running
assert c.stop.call_count == 1
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