scrapy/tests/test_utils_log.py

109 lines
3.5 KiB
Python

import logging
import sys
import unittest
from testfixtures import LogCapture
from twisted.python.failure import Failure
from scrapy.extensions import telnet
from scrapy.utils.log import (
LogCounterHandler,
StreamLogger,
TopLevelFormatter,
failure_to_exc_info,
)
from scrapy.utils.test import get_crawler
class FailureToExcInfoTest(unittest.TestCase):
def test_failure(self):
try:
0 / 0
except ZeroDivisionError:
exc_info = sys.exc_info()
failure = Failure()
self.assertTupleEqual(exc_info, failure_to_exc_info(failure))
def test_non_failure(self):
self.assertIsNone(failure_to_exc_info("test"))
class TopLevelFormatterTest(unittest.TestCase):
def setUp(self):
self.handler = LogCapture()
self.handler.addFilter(TopLevelFormatter(["test"]))
def test_top_level_logger(self):
logger = logging.getLogger("test")
with self.handler as log:
logger.warning("test log msg")
log.check(("test", "WARNING", "test log msg"))
def test_children_logger(self):
logger = logging.getLogger("test.test1")
with self.handler as log:
logger.warning("test log msg")
log.check(("test", "WARNING", "test log msg"))
def test_overlapping_name_logger(self):
logger = logging.getLogger("test2")
with self.handler as log:
logger.warning("test log msg")
log.check(("test2", "WARNING", "test log msg"))
def test_different_name_logger(self):
logger = logging.getLogger("different")
with self.handler as log:
logger.warning("test log msg")
log.check(("different", "WARNING", "test log msg"))
class LogCounterHandlerTest(unittest.TestCase):
def setUp(self):
settings = {"LOG_LEVEL": "WARNING"}
if not telnet.TWISTED_CONCH_AVAILABLE:
# disable it to avoid the extra warning
settings["TELNETCONSOLE_ENABLED"] = False
self.logger = logging.getLogger("test")
self.logger.setLevel(logging.NOTSET)
self.logger.propagate = False
self.crawler = get_crawler(settings_dict=settings)
self.handler = LogCounterHandler(self.crawler)
self.logger.addHandler(self.handler)
def tearDown(self):
self.logger.propagate = True
self.logger.removeHandler(self.handler)
def test_init(self):
self.assertIsNone(self.crawler.stats.get_value("log_count/DEBUG"))
self.assertIsNone(self.crawler.stats.get_value("log_count/INFO"))
self.assertIsNone(self.crawler.stats.get_value("log_count/WARNING"))
self.assertIsNone(self.crawler.stats.get_value("log_count/ERROR"))
self.assertIsNone(self.crawler.stats.get_value("log_count/CRITICAL"))
def test_accepted_level(self):
self.logger.error("test log msg")
self.assertEqual(self.crawler.stats.get_value("log_count/ERROR"), 1)
def test_filtered_out_level(self):
self.logger.debug("test log msg")
self.assertIsNone(self.crawler.stats.get_value("log_count/INFO"))
class StreamLoggerTest(unittest.TestCase):
def setUp(self):
self.stdout = sys.stdout
logger = logging.getLogger("test")
logger.setLevel(logging.WARNING)
sys.stdout = StreamLogger(logger, logging.ERROR)
def tearDown(self):
sys.stdout = self.stdout
def test_redirect(self):
with LogCapture() as log:
print("test log msg")
log.check(("test", "ERROR", "test log msg"))