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157 lines
5.5 KiB
Python
157 lines
5.5 KiB
Python
'''
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Test cases for pyclbr.py
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Nick Mathewson
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'''
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from test_support import run_unittest
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import unittest, sys
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from types import ClassType, FunctionType, MethodType
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import pyclbr
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# This next line triggers an error on old versions of pyclbr.
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from commands import getstatus
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# Here we test the python class browser code.
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#
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# The main function in this suite, 'testModule', compares the output
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# of pyclbr with the introspected members of a module. Because pyclbr
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# is imperfect (as designed), testModule is called with a set of
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# members to ignore.
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class PyclbrTest(unittest.TestCase):
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def assertListEq(self, l1, l2, ignore):
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''' succeed iff {l1} - {ignore} == {l2} - {ignore} '''
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for p1, p2 in (l1, l2), (l2, l1):
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for item in p1:
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ok = (item in p2) or (item in ignore)
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if not ok:
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self.fail("%r missing" % item)
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def assertHasattr(self, obj, attr, ignore):
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''' succeed iff hasattr(obj,attr) or attr in ignore. '''
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if attr in ignore: return
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if not hasattr(obj, attr): print "???",attr
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self.failUnless(hasattr(obj, attr))
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def assertHaskey(self, obj, key, ignore):
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''' succeed iff obj.has_key(key) or key in ignore. '''
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if key in ignore: return
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if not obj.has_key(key): print "***",key
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self.failUnless(obj.has_key(key))
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def assertEquals(self, a, b, ignore=None):
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''' succeed iff a == b or a in ignore or b in ignore '''
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if (ignore == None) or (a in ignore) or (b in ignore): return
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unittest.TestCase.assertEquals(self, a, b)
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def checkModule(self, moduleName, module=None, ignore=()):
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''' succeed iff pyclbr.readmodule_ex(modulename) corresponds
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to the actual module object, module. Any identifiers in
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ignore are ignored. If no module is provided, the appropriate
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module is loaded with __import__.'''
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if module == None:
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module = __import__(moduleName, globals(), {}, [])
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dict = pyclbr.readmodule_ex(moduleName)
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# Make sure the toplevel functions and classes are the same.
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for name, value in dict.items():
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if name in ignore:
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continue
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self.assertHasattr(module, name, ignore)
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py_item = getattr(module, name)
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if isinstance(value, pyclbr.Function):
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self.assertEquals(type(py_item), FunctionType)
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else:
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self.assertEquals(type(py_item), ClassType)
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real_bases = [base.__name__ for base in py_item.__bases__]
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pyclbr_bases = [ getattr(base, 'name', base)
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for base in value.super ]
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self.assertListEq(real_bases, pyclbr_bases, ignore)
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actualMethods = []
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for m in dir(py_item):
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if type(getattr(py_item, m)) == MethodType:
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actualMethods.append(m)
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foundMethods = []
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for m in value.methods.keys():
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if m[:2] == '__' and m[-2:] != '__':
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foundMethods.append('_'+name+m)
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else:
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foundMethods.append(m)
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self.assertListEq(foundMethods, actualMethods, ignore)
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self.assertEquals(py_item.__module__, value.module)
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self.assertEquals(py_item.__name__, value.name, ignore)
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# can't check file or lineno
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# Now check for missing stuff.
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for name in dir(module):
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item = getattr(module, name)
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if type(item) in (ClassType, FunctionType):
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self.assertHaskey(dict, name, ignore)
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def test_easy(self):
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self.checkModule('pyclbr')
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self.checkModule('doctest')
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self.checkModule('rfc822')
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self.checkModule('xmllib')
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self.checkModule('difflib')
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def test_others(self):
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cm = self.checkModule
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# these are about the 20 longest modules.
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cm('random', ignore=('_verify',)) # deleted
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cm('cgi', ignore=('f', 'g', # nested declarations
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'log')) # set with =, not def
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cm('mhlib', ignore=('do', # nested declaration
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'bisect')) # imported method, set with =
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cm('urllib', ignore=('getproxies_environment', # set with =
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'getproxies_registry', # set with =
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'open_https')) # not on all platforms
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#XXXX bad example
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#cm('urllib2', ignore=('at_cnri', # defined inside __main__
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# '__super_init', # set with =.
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# '_HTTPError__super_init', # set with =.
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# 'http_error_301', # set with =.
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# ))
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cm('pickle', ignore=('g',)) # deleted declaration
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cm('aifc', ignore=('openfp',)) # set with =
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cm('httplib', ignore=('error', # set with =
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'HTTPS')) # not on all platforms
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cm('Cookie', ignore=('__str__', 'Cookie')) # set with =
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cm('sre_parse', ignore=('literal', # nested def
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'makedict', 'dump' # from sre_constants
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))
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cm('test.test_pyclbr',
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module=sys.modules[__name__])
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# pydoc doesn't work because of string issues
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# cm('pydoc', pydoc)
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# pdb plays too many dynamic games
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# cm('pdb', pdb)
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run_unittest(PyclbrTest)
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