我正在尝试运行涉及在日志中模拟日期时间的测试(用于logbook.TimedRotatingFileHandler
周围的逻辑)。但是freezegun没有达到日志。日志打印为当前(未模拟,正确)的当前时间!
我的示例打印出令人困惑的消息
[2019-07-09 22:01:21.583288] INFO: None: test time: 2000-01-01 00:01:00
对于以下pytest
from freezegun import freeze_time
import logbook
import sys
import datetime as dt
def test_logbook():
faketime = freeze_time('2000-01-01 00:01')
faketime.start()
assert dt.datetime.now().strftime('%Y%d%m') == '20000101'
log = logbook.Logger()
log.handlers.append(logbook.StreamHandler(sys.stdout))
log.info('test time: ' + str(dt.datetime.now()))
faketime.stop()
assert 0
答案 0 :(得分:1)
您正在冻结导入logbook
之后的时间,而没有涵盖模块级别的某些init。在冻结的时间范围内移动导入;例如:
from freezegun import freeze_time
import sys
import datetime as dt
def test_logbook(capsys):
with freeze_time('2000-01-01 00:01'):
import logbook
assert dt.datetime.now().strftime('%Y%d%m') == '20000101'
log = logbook.Logger()
log.handlers.append(logbook.StreamHandler(sys.stdout))
log.info('hello world')
assert capsys.readouterr().out == '[2000-01-01 00:01:00.000000] INFO: None: hello world\n'