output.txt

% py.test -vvv test_py2_logging.py   
================================================================================================================================================== test session starts ===================================================================================================================================================
platform linux2 -- Python 2.7.11, pytest-2.9.0, py-1.4.31, pluggy-0.3.1 -- /tmp/tmp.x9LSkBqfG8/.venv2.7/bin/python2.7
cachedir: .cache
rootdir: /tmp/tmp.x9LSkBqfG8, inifile: 
collected 4 items 

test_py2_logging.py::test_logging_bytes_to_bytes PASSED
test_py2_logging.py::test_logging_unicode_to_bytes PASSED
test_py2_logging.py::test_logging_bytes_to_unicode PASSED
test_py2_logging.py::test_logging_unicode_to_unicode PASSED

================================================================================================================================================ 4 passed in 0.01 seconds ================================================================================================================================================
samu@TrentoRaiser /tmp/tmp.x9LSkBqfG8 py2.7:.venv2.7
% py.test -vvv test_py2_logging.py -s
================================================================================================================================================== test session starts ===================================================================================================================================================
platform linux2 -- Python 2.7.11, pytest-2.9.0, py-1.4.31, pluggy-0.3.1 -- /tmp/tmp.x9LSkBqfG8/.venv2.7/bin/python2.7
cachedir: .cache
rootdir: /tmp/tmp.x9LSkBqfG8, inifile: 
collected 4 items 

test_py2_logging.py::test_logging_bytes_to_bytes INFO: Hello, ☘!
PASSED
test_py2_logging.py::test_logging_unicode_to_bytes INFO: Hello, ☘!
PASSED
test_py2_logging.py::test_logging_bytes_to_unicode Traceback (most recent call last):
  File "/usr/lib64/python2.7/logging/__init__.py", line 853, in emit
    msg = self.format(record)
  File "/usr/lib64/python2.7/logging/__init__.py", line 726, in format
    return fmt.format(record)
  File "/usr/lib64/python2.7/logging/__init__.py", line 468, in format
    s = self._fmt % record.__dict__
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 7: ordinal not in range(128)
Logged from file test_py2_logging.py, line 54
PASSED
test_py2_logging.py::test_logging_unicode_to_unicode INFO: Hello, ☘!
PASSED

test_py2_logging.py

% cat test_py2_logging.py 
# -*- coding: utf-8 -*-

import logging
import pytest
import sys


UNICODE_FMT = u'%(levelname)s: %(message)s'
BYTES_FMT = UNICODE_FMT.encode('utf8')

UNICODE_MESSAGE = u'Hello, \u2618!'
BYTES_MESSAGE = UNICODE_MESSAGE.encode('utf8')


@pytest.fixture
def logger():
    logger = logging.getLogger('test')
    logger.setLevel(logging.INFO)
    return logger


@pytest.yield_fixture
def setup_logging_bytes(logger):
    formatter = logging.Formatter(BYTES_FMT)
    handler = logging.StreamHandler(sys.stderr)
    handler.setFormatter(formatter)
    logger.addHandler(handler)
    yield
    logger.removeHandler(handler)


@pytest.yield_fixture
def setup_logging_unicode(logger):
    formatter = logging.Formatter(UNICODE_FMT)
    handler = logging.StreamHandler(sys.stderr)
    handler.setFormatter(formatter)
    logger.addHandler(handler)
    yield
    logger.removeHandler(handler)


@pytest.mark.usefixtures('setup_logging_bytes')
def test_logging_bytes_to_bytes(logger):
    logger.info(BYTES_MESSAGE)


@pytest.mark.usefixtures('setup_logging_bytes')
def test_logging_unicode_to_bytes(logger):
    logger.info(UNICODE_MESSAGE)


@pytest.mark.usefixtures('setup_logging_unicode')
def test_logging_bytes_to_unicode(logger):
    logger.info(BYTES_MESSAGE)


@pytest.mark.usefixtures('setup_logging_unicode')
def test_logging_unicode_to_unicode(logger):
    logger.info(UNICODE_MESSAGE)