beets/test/test_logging.py
Bruno Cauet 2c37602d66 Concurrent logging tests: raise thread exc in main thread
In ConcurrentEventsTest.test_concurrent_events listener1 sometimes has a
wrong log level. However the AssertionError is raised in a thread and
not the main one, so the test seems passing while it should fail.
By storing the exception and raising it later we solve that issue,
allowing to fix the random fail.
2015-04-01 17:06:42 +02:00

285 lines
9.8 KiB
Python

"""Stupid tests that ensure logging works as expected"""
from __future__ import (division, absolute_import, print_function,
unicode_literals)
import sys
import time
import threading
import logging as log
from StringIO import StringIO
import beets.logging as blog
from beets import plugins, ui
import beetsplug
from test._common import unittest, TestCase
from test import helper
class LoggingTest(TestCase):
def test_logging_management(self):
l1 = log.getLogger("foo123")
l2 = blog.getLogger("foo123")
self.assertEqual(l1, l2)
self.assertEqual(l1.__class__, log.Logger)
l3 = blog.getLogger("bar123")
l4 = log.getLogger("bar123")
self.assertEqual(l3, l4)
self.assertEqual(l3.__class__, blog.BeetsLogger)
self.assertIsInstance(l3, (blog.StrFormatLogger,
blog.ThreadLocalLevelLogger))
l5 = l3.getChild("shalala")
self.assertEqual(l5.__class__, blog.BeetsLogger)
def test_str_format_logging(self):
l = blog.getLogger("baz123")
stream = StringIO()
handler = log.StreamHandler(stream)
l.addHandler(handler)
l.propagate = False
l.warning("foo {0} {bar}", "oof", bar="baz")
handler.flush()
self.assertTrue(stream.getvalue(), "foo oof baz")
class LoggingLevelTest(unittest.TestCase, helper.TestHelper):
class DummyModule(object):
class DummyPlugin(plugins.BeetsPlugin):
def __init__(self):
plugins.BeetsPlugin.__init__(self, 'dummy')
self.import_stages = [self.import_stage]
self.register_listener('dummy_event', self.listener)
def log_all(self, name):
self._log.debug('debug ' + name)
self._log.info('info ' + name)
self._log.warning('warning ' + name)
def commands(self):
cmd = ui.Subcommand('dummy')
cmd.func = lambda _, __, ___: self.log_all('cmd')
return (cmd,)
def import_stage(self, session, task):
self.log_all('import_stage')
def listener(self):
self.log_all('listener')
def setUp(self):
sys.modules['beetsplug.dummy'] = self.DummyModule
beetsplug.dummy = self.DummyModule
self.setup_beets()
self.load_plugins('dummy')
def tearDown(self):
self.unload_plugins()
self.teardown_beets()
del beetsplug.dummy
sys.modules.pop('beetsplug.dummy')
self.DummyModule.DummyPlugin.listeners = None
self.DummyModule.DummyPlugin._raw_listeners = None
def test_command_level0(self):
self.config['verbose'] = 0
with helper.capture_log() as logs:
self.run_command('dummy')
self.assertIn('dummy: warning cmd', logs)
self.assertIn('dummy: info cmd', logs)
self.assertNotIn('dummy: debug cmd', logs)
def test_command_level1(self):
self.config['verbose'] = 1
with helper.capture_log() as logs:
self.run_command('dummy')
self.assertIn('dummy: warning cmd', logs)
self.assertIn('dummy: info cmd', logs)
self.assertIn('dummy: debug cmd', logs)
def test_command_level2(self):
self.config['verbose'] = 2
with helper.capture_log() as logs:
self.run_command('dummy')
self.assertIn('dummy: warning cmd', logs)
self.assertIn('dummy: info cmd', logs)
self.assertIn('dummy: debug cmd', logs)
def test_listener_level0(self):
self.config['verbose'] = 0
with helper.capture_log() as logs:
plugins.send('dummy_event')
self.assertIn('dummy: warning listener', logs)
self.assertNotIn('dummy: info listener', logs)
self.assertNotIn('dummy: debug listener', logs)
def test_listener_level1(self):
self.config['verbose'] = 1
with helper.capture_log() as logs:
plugins.send('dummy_event')
self.assertIn('dummy: warning listener', logs)
self.assertIn('dummy: info listener', logs)
self.assertNotIn('dummy: debug listener', logs)
def test_listener_level2(self):
self.config['verbose'] = 2
with helper.capture_log() as logs:
plugins.send('dummy_event')
self.assertIn('dummy: warning listener', logs)
self.assertIn('dummy: info listener', logs)
self.assertIn('dummy: debug listener', logs)
def test_import_stage_level0(self):
self.config['verbose'] = 0
with helper.capture_log() as logs:
importer = self.create_importer()
importer.run()
self.assertIn('dummy: warning import_stage', logs)
self.assertNotIn('dummy: info import_stage', logs)
self.assertNotIn('dummy: debug import_stage', logs)
def test_import_stage_level1(self):
self.config['verbose'] = 1
with helper.capture_log() as logs:
importer = self.create_importer()
importer.run()
self.assertIn('dummy: warning import_stage', logs)
self.assertIn('dummy: info import_stage', logs)
self.assertNotIn('dummy: debug import_stage', logs)
def test_import_stage_level2(self):
self.config['verbose'] = 2
with helper.capture_log() as logs:
importer = self.create_importer()
importer.run()
self.assertIn('dummy: warning import_stage', logs)
self.assertIn('dummy: info import_stage', logs)
self.assertIn('dummy: debug import_stage', logs)
class ConcurrentEventsTest(TestCase, helper.TestHelper):
"""Similar to LoggingLevelTest but lower-level and focused on multiple
events interaction. Since this is a bit heavy we don't do it in
LoggingLevelTest.
"""
class DummyPlugin(plugins.BeetsPlugin):
def __init__(self, test_case):
plugins.BeetsPlugin.__init__(self, 'dummy')
self.register_listener('dummy_event1', self.listener1)
self.register_listener('dummy_event2', self.listener2)
self.lock1 = threading.Lock()
self.lock2 = threading.Lock()
self.test_case = test_case
self.exc_info = None
def log_all(self, name):
self._log.debug('debug ' + name)
self._log.info('info ' + name)
self._log.warning('warning ' + name)
def listener1(self):
try:
self.test_case.assertEqual(self._log.level, log.INFO)
self.lock1.acquire()
self.test_case.assertEqual(self._log.level, log.INFO)
except Exception:
import sys
self.exc_info = sys.exc_info()
def listener2(self):
try:
self.test_case.assertEqual(self._log.level, log.DEBUG)
self.lock2.acquire()
self.test_case.assertEqual(self._log.level, log.DEBUG)
except Exception:
import sys
self.exc_info = sys.exc_info()
def setUp(self):
self.setup_beets(disk=True)
def tearDown(self):
self.teardown_beets()
def test_concurrent_events(self):
dp = self.DummyPlugin(self)
def check_dp_exc():
if dp.exc_info:
raise dp.exc_info[1], None, dp.exc_info[2]
try:
dp.lock1.acquire()
dp.lock2.acquire()
self.assertEqual(dp._log.level, log.NOTSET)
t1 = threading.Thread(target=dp.listeners['dummy_event1'][0])
t1.start() # blocked. t1 tested its log level
check_dp_exc()
self.assertTrue(t1.is_alive())
self.assertEqual(dp._log.level, log.NOTSET)
self.config['verbose'] = 2
t2 = threading.Thread(target=dp.listeners['dummy_event2'][0])
t2.start() # blocked. t2 tested its log level
check_dp_exc()
self.assertTrue(t2.is_alive())
self.assertEqual(dp._log.level, log.NOTSET)
dp.lock1.release()
time.sleep(.1) # dummy_event1 tests its log level + finishes
check_dp_exc()
self.assertFalse(t1.is_alive())
self.assertTrue(t2.is_alive())
self.assertEqual(dp._log.level, log.NOTSET)
dp.lock2.release()
time.sleep(.1) # dummy_event2 tests its log level + finishes
check_dp_exc()
self.assertFalse(t2.is_alive())
except:
print("Alive threads:", threading.enumerate())
if dp.lock1.locked():
print("Releasing lock1 after exception in test")
dp.lock1.release()
if dp.lock2.locked():
print("Releasing lock2 after exception in test")
dp.lock2.release()
print("Alive threads:", threading.enumerate())
raise
def test_root_logger_levels(self):
"""Root logger level should be shared between threads.
"""
self.config['threaded'] = True
blog.getLogger('beets').set_global_level(blog.WARNING)
with helper.capture_log() as logs:
importer = self.create_importer()
importer.run()
self.assertEqual(logs, [])
blog.getLogger('beets').set_global_level(blog.INFO)
with helper.capture_log() as logs:
importer = self.create_importer()
importer.run()
for l in logs:
self.assertIn("import", l)
self.assertIn("album", l)
blog.getLogger('beets').set_global_level(blog.DEBUG)
with helper.capture_log() as logs:
importer = self.create_importer()
importer.run()
self.assertIn("Sending event: database_change", logs)
def suite():
return unittest.TestLoader().loadTestsFromName(__name__)
if __name__ == b'__main__':
unittest.main(defaultTest='suite')