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# Authors:
# Petr Viktorin <pviktori@redhat.com>
#
# Copyright (C) 2013 Red Hat
# see file 'COPYING' for use and warranty information
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""A Nose plugin that allows ordered test cases"""
import os
import unittest
import inspect
from nose.plugins import Plugin
import nose.loader
def ordered(cls):
"""Decorator that marks a test class as ordered"""
cls._order_plugin__ordered = True
assert not isinstance(cls, unittest.TestCase), (
"A unittest.TestCase may not be ordered.")
return cls
class OrderTests(Plugin):
name = 'ordered-tests'
def options(self, parser, env=os.environ):
super(OrderTests, self).options(parser, env=env)
def configure(self, options, conf):
super(OrderTests, self).configure(options, conf)
if not self.enabled:
return
def loadTestsFromTestClass(self, cls):
"""Sort methods of ordered test cases by co_firstlineno"""
if not getattr(cls, '_order_plugin__ordered', False):
return
loader = nose.loader.TestLoader()
def wanted(attr):
item = getattr(cls, attr, None)
if not inspect.ismethod(item):
return False
return loader.selector.wantMethod(item)
methods = [getattr(cls, case) for case in dir(cls) if wanted(case)]
methods.sort(key=lambda m: m.func_code.co_firstlineno)
cases = [loader.makeTest(m, cls) for m in methods]
return cases
def wantMethod(self, method):
"""Hide non-TestCase methods from the normal loader"""
im_class = getattr(method, 'im_class', None)
if im_class and getattr(im_class, '_order_plugin__ordered', False):
return False
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