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v0.8.1
v0.8.1
https://github.com/python/cpython
Tip revision: 74f4bd53e03ded8408bcc2de67cf0f5a4ac5b1a1 authored by Barry Warsaw on 23 February 2012, 15:59:38 UTC
Bump some more copyright years (as per PEP 101), since this is the first
Bump some more copyright years (as per PEP 101), since this is the first
Tip revision: 74f4bd5
test_pyclbr.py
'''
Test cases for pyclbr.py
Nick Mathewson
'''
from test.test_support import run_unittest, import_module
import sys
from types import ClassType, FunctionType, MethodType, BuiltinFunctionType
import pyclbr
from unittest import TestCase
StaticMethodType = type(staticmethod(lambda: None))
ClassMethodType = type(classmethod(lambda c: None))
# Silence Py3k warning
import_module('commands', deprecated=True)
# This next line triggers an error on old versions of pyclbr.
from commands import getstatus
# Here we test the python class browser code.
#
# The main function in this suite, 'testModule', compares the output
# of pyclbr with the introspected members of a module. Because pyclbr
# is imperfect (as designed), testModule is called with a set of
# members to ignore.
class PyclbrTest(TestCase):
def assertListEq(self, l1, l2, ignore):
''' succeed iff {l1} - {ignore} == {l2} - {ignore} '''
missing = (set(l1) ^ set(l2)) - set(ignore)
if missing:
print >>sys.stderr, "l1=%r\nl2=%r\nignore=%r" % (l1, l2, ignore)
self.fail("%r missing" % missing.pop())
def assertHasattr(self, obj, attr, ignore):
''' succeed iff hasattr(obj,attr) or attr in ignore. '''
if attr in ignore: return
if not hasattr(obj, attr): print "???", attr
self.failUnless(hasattr(obj, attr),
'expected hasattr(%r, %r)' % (obj, attr))
def assertHaskey(self, obj, key, ignore):
''' succeed iff key in obj or key in ignore. '''
if key in ignore: return
if key not in obj:
print >>sys.stderr, "***", key
self.assertTrue(key in obj)
def assertEqualsOrIgnored(self, a, b, ignore):
''' succeed iff a == b or a in ignore or b in ignore '''
if a not in ignore and b not in ignore:
self.assertEqual(a, b)
def checkModule(self, moduleName, module=None, ignore=()):
''' succeed iff pyclbr.readmodule_ex(modulename) corresponds
to the actual module object, module. Any identifiers in
ignore are ignored. If no module is provided, the appropriate
module is loaded with __import__.'''
if module is None:
# Import it.
# ('<silly>' is to work around an API silliness in __import__)
module = __import__(moduleName, globals(), {}, ['<silly>'])
dict = pyclbr.readmodule_ex(moduleName)
def ismethod(oclass, obj, name):
classdict = oclass.__dict__
if isinstance(obj, FunctionType):
if not isinstance(classdict[name], StaticMethodType):
return False
else:
if not isinstance(obj, MethodType):
return False
if obj.im_self is not None:
if (not isinstance(classdict[name], ClassMethodType) or
obj.im_self is not oclass):
return False
else:
if not isinstance(classdict[name], FunctionType):
return False
objname = obj.__name__
if objname.startswith("__") and not objname.endswith("__"):
objname = "_%s%s" % (obj.im_class.__name__, objname)
return objname == name
# Make sure the toplevel functions and classes are the same.
for name, value in dict.items():
if name in ignore:
continue
self.assertHasattr(module, name, ignore)
py_item = getattr(module, name)
if isinstance(value, pyclbr.Function):
self.assert_(isinstance(py_item, (FunctionType, BuiltinFunctionType)))
if py_item.__module__ != moduleName:
continue # skip functions that came from somewhere else
self.assertEquals(py_item.__module__, value.module)
else:
self.failUnless(isinstance(py_item, (ClassType, type)))
if py_item.__module__ != moduleName:
continue # skip classes that came from somewhere else
real_bases = [base.__name__ for base in py_item.__bases__]
pyclbr_bases = [ getattr(base, 'name', base)
for base in value.super ]
try:
self.assertListEq(real_bases, pyclbr_bases, ignore)
except:
print >>sys.stderr, "class=%s" % py_item
raise
actualMethods = []
for m in py_item.__dict__.keys():
if ismethod(py_item, getattr(py_item, m), m):
actualMethods.append(m)
foundMethods = []
for m in value.methods.keys():
if m[:2] == '__' and m[-2:] != '__':
foundMethods.append('_'+name+m)
else:
foundMethods.append(m)
try:
self.assertListEq(foundMethods, actualMethods, ignore)
self.assertEquals(py_item.__module__, value.module)
self.assertEqualsOrIgnored(py_item.__name__, value.name,
ignore)
# can't check file or lineno
except:
print >>sys.stderr, "class=%s" % py_item
raise
# Now check for missing stuff.
def defined_in(item, module):
if isinstance(item, ClassType):
return item.__module__ == module.__name__
if isinstance(item, FunctionType):
return item.func_globals is module.__dict__
return False
for name in dir(module):
item = getattr(module, name)
if isinstance(item, (ClassType, FunctionType)):
if defined_in(item, module):
self.assertHaskey(dict, name, ignore)
def test_easy(self):
self.checkModule('pyclbr')
self.checkModule('doctest')
# Silence Py3k warning
rfc822 = import_module('rfc822', deprecated=True)
self.checkModule('rfc822', rfc822)
self.checkModule('difflib')
def test_decorators(self):
# XXX: See comment in pyclbr_input.py for a test that would fail
# if it were not commented out.
#
self.checkModule('test.pyclbr_input')
def test_others(self):
cm = self.checkModule
# These were once about the 10 longest modules
cm('random', ignore=('Random',)) # from _random import Random as CoreGenerator
cm('cgi', ignore=('log',)) # set with = in module
cm('urllib', ignore=('_CFNumberToInt32',
'_CStringFromCFString',
'_CFSetup',
'getproxies_registry',
'proxy_bypass_registry',
'proxy_bypass_macosx_sysconf',
'open_https',
'getproxies_macosx_sysconf',
'getproxies_internetconfig',)) # not on all platforms
cm('pickle')
cm('aifc', ignore=('openfp',)) # set with = in module
cm('Cookie')
cm('sre_parse', ignore=('dump',)) # from sre_constants import *
cm('pdb')
cm('pydoc')
# Tests for modules inside packages
cm('email.parser')
cm('test.test_pyclbr')
def test_main():
run_unittest(PyclbrTest)
if __name__ == "__main__":
test_main()