打包__init__进行测试

Question

I have the following structure in a project:

app/
    __init__.py
    main.py
    tests/
        __init__.py
        test_a.py
        test_b.py

I would like to initialize logging for tests under the tests package. I placed the initialization code in app/tests/__init__.py under the assumption that it is run before any test is run, however I've discovered this is not the case.

How can I make this initialization code run in the following scenarios?

• When running python test_a.py from the command prompt
• When running test_a.py as a unit-test under eclipse\\aptana\\pycharm
• When running the entire test suite under eclipse\\aptana\\pycharm

Answer 1

You can use logger config files for normal run and tests, which is the most secure way to have different configurations.

The 'workaround' way is to re-create loggers. You've probably just added new loggers in __init__.py? Once configured, logging keeps it config and only allows extending. However you can try re-creating the whole logger, as described here: Python logging before you run logging.basicConfig? eg:

root = logging.getLogger()
if root.handlers:
    for handler in root.handlers:
        root.removeHandler(handler)
# now create your test config
logging.basicConfig(format='%(asctime)s %(message)s',level=logging.DEBUG)

Add this code to your test.py file, or add it into __init__.py but you might probably need:

from tests import *

to make it execute in the tests.