从unittest访问或捕获断言错误

Question

从unittest访问或捕获断言错误到登录文件。

loggerLogging.py

def configure_logging():    
    logging.root.setLevel(logging.DEBUG)
    f = logging.Formatter(
        '%(asctime)s '
        '%(lineno)-4d '
        '%(message)s '
    )

    sh = logging.StreamHandler()
    sh.setLevel(logging.WARN)
    sh.setFormatter(f)
    logging.root.addHandler(sh)


    fh = logging.FileHandler("filename.log")
    fh.setLevel(logging.DEBUG)
    fh.setFormatter(f)
    logging.root.addHandler(fh)


    fh2 = logging.FileHandler("errorfile.log"))
    fh2.setLevel(logging.INFO)
    fh2.setFormatter(f)
    logging.root.addHandler(fh2)
    return logging

test_file1.py

import unittest
class SanityTest(unittest.TestCase):
    def test_1(self):
        logging.warn("test message")
        assert 0

if __name__ == '__main__':
    logging = loggerLogging.configure_logging()
    suite = unittest.TestLoader().loadTestsFromTestCase(SanityTestMethods)
    unittest.TextTestRunner(verbosity=2).run(suite)

因此，断言错误是在console / stderr中从unittest日志记录中提交但是，我想将它记录在我的日志文件中。是否可以在unittest中进行？