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from fontTools.misc.loggingTools import (
LevelFormatter,
Timer,
configLogger,
ChannelsFilter,
LogMixin,
)
from io import StringIO
import logging
import textwrap
import time
import re
import pytest
def logger_name_generator():
basename = "fontTools.test#"
num = 1
while True:
yield basename+str(num)
num += 1
unique_logger_name = logger_name_generator()
@pytest.fixture
def logger():
log = logging.getLogger(next(unique_logger_name))
configLogger(logger=log, level="DEBUG", stream=StringIO())
return log
def test_LevelFormatter():
stream = StringIO()
handler = logging.StreamHandler(stream)
formatter = LevelFormatter(
fmt={
'*': '[%(levelname)s] %(message)s',
'DEBUG': '%(name)s [%(levelname)s] %(message)s',
'INFO': '%(message)s',
})
handler.setFormatter(formatter)
name = next(unique_logger_name)
log = logging.getLogger(name)
log.setLevel(logging.DEBUG)
log.addHandler(handler)
log.debug("this uses a custom format string")
log.info("this also uses a custom format string")
log.warning("this one uses the default format string")
assert stream.getvalue() == textwrap.dedent("""\
%s [DEBUG] this uses a custom format string
this also uses a custom format string
[WARNING] this one uses the default format string
""" % name)
class TimerTest(object):
def test_split(self):
timer = Timer()
time.sleep(0.01)
fist_lap = timer.split()
assert timer.elapsed == fist_lap
time.sleep(0.1)
second_lap = timer.split()
assert second_lap > fist_lap
assert timer.elapsed == second_lap
def test_time(self):
timer = Timer()
time.sleep(0.01)
overall_time = timer.time()
assert overall_time > 0
def test_context_manager(self):
with Timer() as t:
time.sleep(0.01)
assert t.elapsed > 0
def test_using_logger(self, logger):
with Timer(logger, 'do something'):
time.sleep(0.01)
assert re.match(
r"Took [0-9]\.[0-9]{3}s to do something",
logger.handlers[0].stream.getvalue())
def test_using_logger_calling_instance(self, logger):
timer = Timer(logger)
with timer():
time.sleep(0.01)
assert re.match(
r"elapsed time: [0-9]\.[0-9]{3}s",
logger.handlers[0].stream.getvalue())
# do it again but with custom level
with timer('redo it', level=logging.WARNING):
time.sleep(0.02)
assert re.search(
r"WARNING: Took [0-9]\.[0-9]{3}s to redo it",
logger.handlers[0].stream.getvalue())
def test_function_decorator(self, logger):
timer = Timer(logger)
@timer()
def test1():
time.sleep(0.01)
@timer('run test 2', level=logging.INFO)
def test2():
time.sleep(0.02)
test1()
assert re.match(
r"Took [0-9]\.[0-9]{3}s to run 'test1'",
logger.handlers[0].stream.getvalue())
test2()
assert re.search(
r"Took [0-9]\.[0-9]{3}s to run test 2",
logger.handlers[0].stream.getvalue())
def test_ChannelsFilter(logger):
n = logger.name
filtr = ChannelsFilter(n+".A.B", n+".C.D")
handler = logger.handlers[0]
handler.addFilter(filtr)
stream = handler.stream
logging.getLogger(n+".A.B").debug('this record passes through')
assert 'this record passes through' in stream.getvalue()
logging.getLogger(n+'.A.B.C').debug('records from children also pass')
assert 'records from children also pass' in stream.getvalue()
logging.getLogger(n+'.C.D').debug('this one as well')
assert 'this one as well' in stream.getvalue()
logging.getLogger(n+'.A.B.').debug('also this one')
assert 'also this one' in stream.getvalue()
before = stream.getvalue()
logging.getLogger(n+'.A.F').debug('but this one does not!')
assert before == stream.getvalue()
logging.getLogger(n+'.C.DE').debug('neither this one!')
assert before == stream.getvalue()
def test_LogMixin():
class Base(object):
pass
class A(LogMixin, Base):
pass
class B(A):
pass
a = A()
b = B()
assert hasattr(a, 'log')
assert hasattr(b, 'log')
assert isinstance(a.log, logging.Logger)
assert isinstance(b.log, logging.Logger)
assert a.log.name == "loggingTools_test.A"
assert b.log.name == "loggingTools_test.B"
|
