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# Copyright (c) 2003-2008 LOGILAB S.A. (Paris, FRANCE).
# http://www.logilab.fr/ -- mailto:contact@logilab.fr
#
# 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 2 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, write to the Free Software Foundation, Inc.,
# 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
"""functional/non regression tests for pylint"""
import unittest
import sys
import re
import new
from os import linesep
from os.path import exists
from logilab.common import testlib
from utils import get_tests_info, fix_path, TestReporter
from logilab.astng import MANAGER
from pylint.lint import PyLinter
from pylint import checkers
test_reporter = TestReporter()
linter = PyLinter()
linter.set_reporter(test_reporter)
linter.config.persistent = 0
checkers.initialize(linter)
linter.global_set_option('required-attributes', ('__revision__',))
PY23 = sys.version_info >= (2, 3)
PY24 = sys.version_info >= (2, 4)
PY25 = sys.version_info >= (2, 5)
if linesep != '\n':
LINE_RGX = re.compile(linesep)
def ulines(string):
return LINE_RGX.sub('\n', string)
else:
def ulines(string):
return string
INFO_TEST_RGX = re.compile('^func_i\d\d\d\d$')
def exception_str(ex):
"""function used to replace default __str__ method of exception instances"""
return 'in %s\n:: %s' % (ex.file, ', '.join(ex.args))
class LintTestUsingModule(testlib.TestCase):
package = 'input'
linter = linter
def setUp(self):
MANAGER.set_cache_size(200) # reset cache
def test_functionality(self):
tocheck = [self.package+'.'+self.module]
if self.depends:
tocheck += [self.package+'.%s' % name.replace('.py', '')
for name, file in self.depends]
self._test(tocheck)
def _test(self, tocheck):
if INFO_TEST_RGX.match(self.module):
self.linter.enable_message_category('I')
else:
self.linter.disable_message_category('I')
try:
self.linter.check(tocheck)
except Exception, ex:
# need finalization to restore a correct state
self.linter.reporter.finalize()
ex.file = tocheck
ex.__str__ = new.instancemethod(exception_str, ex, None)
raise
if self.module.startswith('func_noerror_'):
expected = ''
else:
output = open(self.output)
expected = output.read().strip()
output.close()
got = self.linter.reporter.finalize().strip()
try:
self.assertLinesEquals(got, expected)
except Exception, ex:
# doesn't work with py 2.5
#ex.file = tocheck
#ex.__str__ = new.instancemethod(exception_str, ex, None)
raise AssertionError('%s: %s' % (self.module, ex)), None, sys.exc_info()[-1]
class LintTestUsingFile(LintTestUsingModule):
def test_functionality(self):
tocheck = [self.package+'/' + self.module + '.py']
if self.depends:
tocheck += [self.package+'/%s' % name for name, file in self.depends]
self._test(tocheck)
class TestTests(testlib.TestCase):
"""check that all testable messages have been checked"""
def test(self):
# skip fatal messages
todo = [msgid for msgid in linter._messages.keys() if msgid[0] != 'F']
for msgid in test_reporter.message_ids.keys():
try:
todo.remove(msgid)
except ValueError:
continue
todo.sort()
if PY25:
self.assertEqual(todo, ['E0503', 'I0001'])
elif PY23:
self.assertEqual(todo, ['E0503', 'I0001'])
else: # python < 2.3
self.assertEqual(todo, ['I0001'])
#bycat = {}
#for msgid in linter._messages.keys():
# bycat[msgid[0]] = bycat.setdefault(msgid[0], 0) + 1
#for cat, val in bycat.items():
# print '%s: %s' % (cat, val)
#print 'total', sum(bycat.values())
#
# on 2007/02/17:
#
# W: 48
# E: 42
# R: 15
# C: 13
# F: 7
# I: 5
# total 130
def make_tests(filter_rgx):
"""generate tests classes from test info
return the list of generated test classes
"""
if filter_rgx:
is_to_run = re.compile(filter_rgx).search
else:
is_to_run = lambda x: 1
tests = []
for module_file, messages_file in get_tests_info('func_', '.py') + [('nonexistant', 'messages/nonexistant.txt')]:
# skip those tests with python >= 2.3 since py2.3 detects them by itself
if PY23 and module_file == "func_unknown_encoding.py": #"func_nonascii_noencoding.py"):
continue
pyrestr = module_file.rsplit('_py', 1)[-1][:-3]
if pyrestr.isdigit(): # '24', '25'...
if sys.version_info < tuple([int(i) for i in pyrestr]):
continue
if not is_to_run(module_file):
continue
base = module_file.replace('func_', '').replace('.py', '')
dependencies = get_tests_info(base, '.py')
class LintTestUsingModuleTC(LintTestUsingModule):
module = module_file.replace('.py', '')
output = messages_file
depends = dependencies or None
tests.append(LintTestUsingModuleTC)
if MODULES_ONLY:
continue
class LintTestUsingFileTC(LintTestUsingFile):
module = module_file.replace('.py', '')
output = exists(messages_file + '2') and (messages_file + '2') or messages_file
depends = dependencies or None
tests.append(LintTestUsingFileTC)
## # special test for f0003
## module_file, messages_file in get_tests_info('func_f0003', '.pyc')
## class LintTestSubclass(LintTest):
## module = module_file.replace('.pyc', '')
## output = messages_file
## depends = dependencies or None
## tests.append(LintTestSubclass)
class LintBuiltinModuleTest(LintTestUsingModule):
output = 'messages/builtin_module.txt'
module = 'sys'
def test_functionality(self):
self._test(['sys'])
tests.append(LintBuiltinModuleTest)
if not filter_rgx:
# test all features are tested :)
tests.append(TestTests)
return tests
FILTER_RGX = None
MODULES_ONLY = False
def suite():
return unittest.TestSuite([unittest.makeSuite(test)
for test in make_tests(FILTER_RGX)])
if __name__=='__main__':
if '-m' in sys.argv:
MODULES_ONLY = True
sys.argv.remove('-m')
if len(sys.argv) > 1:
FILTER_RGX = sys.argv[1]
del sys.argv[1]
testlib.unittest_main(defaultTest='suite')
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