Re: decorators don't play nice with nose?
On Apr 6, 11:11 pm, "Diez B. Roggisch" wrote: > Nose works via the func_name parameter of a method/function. > > So when you decorate it, you need to make sure that is set properly. One > option is to do something like this: > > from functools import wraps > > def my_decorator(f): > @wraps(f) > def _d(*args, **kwargs): > return f(*args, **kwargs) > > return _d Or you can use the decorator module: http://pypi.python.org/pypi/decorator -- http://mail.python.org/mailman/listinfo/python-list
Re: decorators don't play nice with nose?
hyperboreean schrieb:
Hi, I am trying to test the business part of a web service. For this I
am using unittest & nose.
I wrote a decorator that should handle the xml test file retrieval, but
it seems I can't get it working with nose.
Here's the code:
* MyApp.py -- base test class *
import os
import unittest
from MyApp.Core import XmlParser
__all__ = ['MyAppTest', 'setup']
PATH = os.path.dirname(__file__) or ''
class setup(object):
"""Decorator to ease the use of xml files in MyApp tests.
The way it works it that it decorates a test method which has a first
default parameter called 'parser' and it overwrites this parameter value
with a XmlParser instance.
The xml file should be located under:
data/testedBusinessRequest/testMethodName.xml
"""
def __init__(self, testedBusinessRequest = ''):
self.testedBusinessRequest =\
testedBusinessRequest.lower()
def _getXmlParser(self, xml):
documentElement = XmlParser.parseXmlStream(xml)
parser = XmlParser.getParser(documentElement)
return parser
def __call__(self, method):
# TODO: error handling here
methodName = method.func_code.co_name
methodName = methodName.split('_')[1]
xmlFolder = self.testedBusinessRequest
xmlFile = '%s.xml' % methodName
path = os.path.join(PATH, 'data',
xmlFolder, xmlFile)
f = open(path)
xml = f.read()
f.close()
method.func_defaults = (self._getXmlParser(xml),)
return method
class MyAppTest(unittest.TestCase):
def setUp(self):
self.database = Database()
def tearDown(self):
pass
* test_Login.py - test a business request *
from MyAppTest import MyAppTest, setup
from MyApp import Login
class TestLogin(MyAppTest):
testedBusinessRequest = 'Login'
@setup(testedBusinessRequest)
def test_validParameters(self, parser = None):
response = Login(self.database, parser).run()
return True
Ok, so the decorator setup should fill the parser parameter with a
XmlParser object. This works well if I add a __main__ and use unittest
to run the tests. But if I use nose, I get the following error:
*TypeError: unbound method __call__() must be called with setup instance
as first argument (got module instance instead)*
Any advices?
Nose works via the func_name parameter of a method/function.
So when you decorate it, you need to make sure that is set properly. One
option is to do something like this:
from functools import wraps
def my_decorator(f):
@wraps(f)
def _d(*args, **kwargs):
return f(*args, **kwargs)
return _d
Diez
--
http://mail.python.org/mailman/listinfo/python-list
Re: decorators don't play nice with nose?
hyperboreean writes:
> From: hyperboreean
> Subject: decorators don't play nice with nose?
> Newsgroups: comp.lang.python
> To: python-list@python.org
> Date: Mon, 06 Apr 2009 11:01:04 +0300
>
> Hi, I am trying to test the business part of a web service. For this I
> am using unittest & nose.
> I wrote a decorator that should handle the xml test file retrieval,
> but it seems I can't get it working with nose.
> Here's the code:
>
>
> * MyApp.py -- base test class *
>
> import os
> import unittest
>
> from MyApp.Core import XmlParser
>
>
> __all__ = ['MyAppTest', 'setup']
>
>
> PATH = os.path.dirname(__file__) or ''
>
>
> class setup(object):
>"""Decorator to ease the use of xml files in MyApp tests.
>
>The way it works it that it decorates a test method which has a first
>default parameter called 'parser' and it overwrites this parameter value
>with a XmlParser instance.
>
>The xml file should be located under:
>data/testedBusinessRequest/testMethodName.xml
>"""
>def __init__(self, testedBusinessRequest = ''):
>self.testedBusinessRequest =\
>testedBusinessRequest.lower()
>
>
>def _getXmlParser(self, xml):
>documentElement = XmlParser.parseXmlStream(xml)
>parser = XmlParser.getParser(documentElement)
>return parser
>
>
>def __call__(self, method):
>
># TODO: error handling here
>methodName = method.func_code.co_name
>methodName = methodName.split('_')[1]
>
>xmlFolder = self.testedBusinessRequest
>xmlFile = '%s.xml' % methodName
>
>path = os.path.join(PATH, 'data',
>xmlFolder, xmlFile)
>
>f = open(path)
>xml = f.read()
>f.close()
>method.func_defaults = (self._getXmlParser(xml),)
>return method
>
>
> class MyAppTest(unittest.TestCase):
>
>def setUp(self):
>self.database = Database()
>
>def tearDown(self):
>pass
>
>
> * test_Login.py - test a business request *
> from MyAppTest import MyAppTest, setup
>
> from MyApp import Login
>
>
> class TestLogin(MyAppTest):
>testedBusinessRequest = 'Login'
>
>@setup(testedBusinessRequest)
>def test_validParameters(self, parser = None):
FWIW, nose and unittest both provide methods for setting up and
tearing down tests. You should probably look at those first before
rolling your own. At the very least it will give you an idea of how
yours should work.
Cheers
--
http://mail.python.org/mailman/listinfo/python-list
decorators don't play nice with nose?
Hi, I am trying to test the business part of a web service. For this I
am using unittest & nose.
I wrote a decorator that should handle the xml test file retrieval, but
it seems I can't get it working with nose.
Here's the code:
* MyApp.py -- base test class *
import os
import unittest
from MyApp.Core import XmlParser
__all__ = ['MyAppTest', 'setup']
PATH = os.path.dirname(__file__) or ''
class setup(object):
"""Decorator to ease the use of xml files in MyApp tests.
The way it works it that it decorates a test method which has a first
default parameter called 'parser' and it overwrites this parameter value
with a XmlParser instance.
The xml file should be located under:
data/testedBusinessRequest/testMethodName.xml
"""
def __init__(self, testedBusinessRequest = ''):
self.testedBusinessRequest =\
testedBusinessRequest.lower()
def _getXmlParser(self, xml):
documentElement = XmlParser.parseXmlStream(xml)
parser = XmlParser.getParser(documentElement)
return parser
def __call__(self, method):
# TODO: error handling here
methodName = method.func_code.co_name
methodName = methodName.split('_')[1]
xmlFolder = self.testedBusinessRequest
xmlFile = '%s.xml' % methodName
path = os.path.join(PATH, 'data',
xmlFolder, xmlFile)
f = open(path)
xml = f.read()
f.close()
method.func_defaults = (self._getXmlParser(xml),)
return method
class MyAppTest(unittest.TestCase):
def setUp(self):
self.database = Database()
def tearDown(self):
pass
* test_Login.py - test a business request *
from MyAppTest import MyAppTest, setup
from MyApp import Login
class TestLogin(MyAppTest):
testedBusinessRequest = 'Login'
@setup(testedBusinessRequest)
def test_validParameters(self, parser = None):
response = Login(self.database, parser).run()
return True
Ok, so the decorator setup should fill the parser parameter with a
XmlParser object. This works well if I add a __main__ and use unittest
to run the tests. But if I use nose, I get the following error:
*TypeError: unbound method __call__() must be called with setup instance
as first argument (got module instance instead)*
Any advices?
Thanks!
--
http://mail.python.org/mailman/listinfo/python-list
