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914 lines
36 KiB
914 lines
36 KiB
import re
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import sys
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import types
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import unittest
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import inspect
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import linecache
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import datetime
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import textwrap
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from UserList import UserList
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from UserDict import UserDict
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from test.support import run_unittest, check_py3k_warnings, have_unicode
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with check_py3k_warnings(
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("tuple parameter unpacking has been removed", SyntaxWarning),
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quiet=True):
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from test import inspect_fodder as mod
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from test import inspect_fodder2 as mod2
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# C module for test_findsource_binary
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try:
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import unicodedata
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except ImportError:
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unicodedata = None
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# Functions tested in this suite:
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# ismodule, isclass, ismethod, isfunction, istraceback, isframe, iscode,
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# isbuiltin, isroutine, isgenerator, isgeneratorfunction, getmembers,
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# getdoc, getfile, getmodule, getsourcefile, getcomments, getsource,
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# getclasstree, getargspec, getargvalues, formatargspec, formatargvalues,
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# currentframe, stack, trace, isdatadescriptor
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# NOTE: There are some additional tests relating to interaction with
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# zipimport in the test_zipimport_support test module.
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modfile = mod.__file__
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if modfile.endswith(('c', 'o')):
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modfile = modfile[:-1]
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import __builtin__
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try:
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1 // 0
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except:
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tb = sys.exc_traceback
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git = mod.StupidGit()
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class IsTestBase(unittest.TestCase):
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predicates = set([inspect.isbuiltin, inspect.isclass, inspect.iscode,
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inspect.isframe, inspect.isfunction, inspect.ismethod,
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inspect.ismodule, inspect.istraceback,
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inspect.isgenerator, inspect.isgeneratorfunction])
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def istest(self, predicate, exp):
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obj = eval(exp)
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self.assertTrue(predicate(obj), '%s(%s)' % (predicate.__name__, exp))
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for other in self.predicates - set([predicate]):
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if predicate == inspect.isgeneratorfunction and\
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other == inspect.isfunction:
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continue
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self.assertFalse(other(obj), 'not %s(%s)' % (other.__name__, exp))
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def generator_function_example(self):
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for i in xrange(2):
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yield i
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class TestPredicates(IsTestBase):
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def test_sixteen(self):
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count = len(filter(lambda x:x.startswith('is'), dir(inspect)))
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# This test is here for remember you to update Doc/library/inspect.rst
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# which claims there are 16 such functions
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expected = 16
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err_msg = "There are %d (not %d) is* functions" % (count, expected)
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self.assertEqual(count, expected, err_msg)
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def test_excluding_predicates(self):
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self.istest(inspect.isbuiltin, 'sys.exit')
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self.istest(inspect.isbuiltin, '[].append')
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self.istest(inspect.iscode, 'mod.spam.func_code')
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self.istest(inspect.isframe, 'tb.tb_frame')
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self.istest(inspect.isfunction, 'mod.spam')
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self.istest(inspect.ismethod, 'mod.StupidGit.abuse')
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self.istest(inspect.ismethod, 'git.argue')
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self.istest(inspect.ismodule, 'mod')
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self.istest(inspect.istraceback, 'tb')
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self.istest(inspect.isdatadescriptor, '__builtin__.file.closed')
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self.istest(inspect.isdatadescriptor, '__builtin__.file.softspace')
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self.istest(inspect.isgenerator, '(x for x in xrange(2))')
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self.istest(inspect.isgeneratorfunction, 'generator_function_example')
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if hasattr(types, 'GetSetDescriptorType'):
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self.istest(inspect.isgetsetdescriptor,
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'type(tb.tb_frame).f_locals')
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else:
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self.assertFalse(inspect.isgetsetdescriptor(type(tb.tb_frame).f_locals))
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if hasattr(types, 'MemberDescriptorType'):
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self.istest(inspect.ismemberdescriptor, 'datetime.timedelta.days')
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else:
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self.assertFalse(inspect.ismemberdescriptor(datetime.timedelta.days))
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def test_isroutine(self):
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self.assertTrue(inspect.isroutine(mod.spam))
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self.assertTrue(inspect.isroutine([].count))
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def test_isclass(self):
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self.istest(inspect.isclass, 'mod.StupidGit')
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self.assertTrue(inspect.isclass(list))
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class newstyle(object): pass
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self.assertTrue(inspect.isclass(newstyle))
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class CustomGetattr(object):
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def __getattr__(self, attr):
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return None
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self.assertFalse(inspect.isclass(CustomGetattr()))
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def test_get_slot_members(self):
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class C(object):
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__slots__ = ("a", "b")
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x = C()
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x.a = 42
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members = dict(inspect.getmembers(x))
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self.assertIn('a', members)
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self.assertNotIn('b', members)
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def test_isabstract(self):
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from abc import ABCMeta, abstractmethod
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class AbstractClassExample(object):
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__metaclass__ = ABCMeta
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@abstractmethod
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def foo(self):
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pass
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class ClassExample(AbstractClassExample):
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def foo(self):
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pass
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a = ClassExample()
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# Test general behaviour.
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self.assertTrue(inspect.isabstract(AbstractClassExample))
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self.assertFalse(inspect.isabstract(ClassExample))
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self.assertFalse(inspect.isabstract(a))
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self.assertFalse(inspect.isabstract(int))
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self.assertFalse(inspect.isabstract(5))
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class TestInterpreterStack(IsTestBase):
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def __init__(self, *args, **kwargs):
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unittest.TestCase.__init__(self, *args, **kwargs)
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git.abuse(7, 8, 9)
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def test_abuse_done(self):
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self.istest(inspect.istraceback, 'git.ex[2]')
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self.istest(inspect.isframe, 'mod.fr')
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def test_stack(self):
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self.assertTrue(len(mod.st) >= 5)
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self.assertEqual(mod.st[0][1:],
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(modfile, 16, 'eggs', [' st = inspect.stack()\n'], 0))
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self.assertEqual(mod.st[1][1:],
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(modfile, 9, 'spam', [' eggs(b + d, c + f)\n'], 0))
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self.assertEqual(mod.st[2][1:],
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(modfile, 43, 'argue', [' spam(a, b, c)\n'], 0))
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self.assertEqual(mod.st[3][1:],
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(modfile, 39, 'abuse', [' self.argue(a, b, c)\n'], 0))
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def test_trace(self):
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self.assertEqual(len(git.tr), 3)
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self.assertEqual(git.tr[0][1:], (modfile, 43, 'argue',
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[' spam(a, b, c)\n'], 0))
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self.assertEqual(git.tr[1][1:], (modfile, 9, 'spam',
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[' eggs(b + d, c + f)\n'], 0))
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self.assertEqual(git.tr[2][1:], (modfile, 18, 'eggs',
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[' q = y // 0\n'], 0))
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def test_frame(self):
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args, varargs, varkw, locals = inspect.getargvalues(mod.fr)
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self.assertEqual(args, ['x', 'y'])
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self.assertEqual(varargs, None)
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self.assertEqual(varkw, None)
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self.assertEqual(locals, {'x': 11, 'p': 11, 'y': 14})
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self.assertEqual(inspect.formatargvalues(args, varargs, varkw, locals),
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'(x=11, y=14)')
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def test_previous_frame(self):
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args, varargs, varkw, locals = inspect.getargvalues(mod.fr.f_back)
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self.assertEqual(args, ['a', 'b', 'c', 'd', ['e', ['f']]])
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self.assertEqual(varargs, 'g')
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self.assertEqual(varkw, 'h')
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self.assertEqual(inspect.formatargvalues(args, varargs, varkw, locals),
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'(a=7, b=8, c=9, d=3, (e=4, (f=5,)), *g=(), **h={})')
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class GetSourceBase(unittest.TestCase):
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# Subclasses must override.
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fodderFile = None
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def __init__(self, *args, **kwargs):
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unittest.TestCase.__init__(self, *args, **kwargs)
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with open(inspect.getsourcefile(self.fodderFile)) as fp:
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self.source = fp.read()
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def sourcerange(self, top, bottom):
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lines = self.source.split("\n")
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return "\n".join(lines[top-1:bottom]) + ("\n" if bottom else "")
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def assertSourceEqual(self, obj, top, bottom):
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self.assertEqual(inspect.getsource(obj),
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self.sourcerange(top, bottom))
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class TestRetrievingSourceCode(GetSourceBase):
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fodderFile = mod
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def test_getclasses(self):
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classes = inspect.getmembers(mod, inspect.isclass)
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self.assertEqual(classes,
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[('FesteringGob', mod.FesteringGob),
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('MalodorousPervert', mod.MalodorousPervert),
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('ParrotDroppings', mod.ParrotDroppings),
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('StupidGit', mod.StupidGit),
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('Tit', mod.MalodorousPervert),
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])
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tree = inspect.getclasstree([cls[1] for cls in classes])
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self.assertEqual(tree,
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[(mod.ParrotDroppings, ()),
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[(mod.FesteringGob, (mod.MalodorousPervert,
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mod.ParrotDroppings))
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],
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(mod.StupidGit, ()),
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[(mod.MalodorousPervert, (mod.StupidGit,)),
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[(mod.FesteringGob, (mod.MalodorousPervert,
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mod.ParrotDroppings))
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]
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]
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])
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tree = inspect.getclasstree([cls[1] for cls in classes], True)
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self.assertEqual(tree,
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[(mod.ParrotDroppings, ()),
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(mod.StupidGit, ()),
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[(mod.MalodorousPervert, (mod.StupidGit,)),
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[(mod.FesteringGob, (mod.MalodorousPervert,
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mod.ParrotDroppings))
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]
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]
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])
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def test_getfunctions(self):
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functions = inspect.getmembers(mod, inspect.isfunction)
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self.assertEqual(functions, [('eggs', mod.eggs),
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('spam', mod.spam)])
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@unittest.skipIf(sys.flags.optimize >= 2,
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"Docstrings are omitted with -O2 and above")
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def test_getdoc(self):
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self.assertEqual(inspect.getdoc(mod), 'A module docstring.')
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self.assertEqual(inspect.getdoc(mod.StupidGit),
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'A longer,\n\nindented\n\ndocstring.')
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self.assertEqual(inspect.getdoc(git.abuse),
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'Another\n\ndocstring\n\ncontaining\n\ntabs')
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def test_cleandoc(self):
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self.assertEqual(inspect.cleandoc('An\n indented\n docstring.'),
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'An\nindented\ndocstring.')
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def test_getcomments(self):
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self.assertEqual(inspect.getcomments(mod), '# line 1\n')
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self.assertEqual(inspect.getcomments(mod.StupidGit), '# line 20\n')
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def test_getmodule(self):
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# Check actual module
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self.assertEqual(inspect.getmodule(mod), mod)
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# Check class (uses __module__ attribute)
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self.assertEqual(inspect.getmodule(mod.StupidGit), mod)
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# Check a method (no __module__ attribute, falls back to filename)
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self.assertEqual(inspect.getmodule(mod.StupidGit.abuse), mod)
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# Do it again (check the caching isn't broken)
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self.assertEqual(inspect.getmodule(mod.StupidGit.abuse), mod)
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# Check a builtin
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self.assertEqual(inspect.getmodule(str), sys.modules["__builtin__"])
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# Check filename override
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self.assertEqual(inspect.getmodule(None, modfile), mod)
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def test_getsource(self):
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self.assertSourceEqual(git.abuse, 29, 39)
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self.assertSourceEqual(mod.StupidGit, 21, 46)
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def test_getsourcefile(self):
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self.assertEqual(inspect.getsourcefile(mod.spam), modfile)
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self.assertEqual(inspect.getsourcefile(git.abuse), modfile)
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fn = "_non_existing_filename_used_for_sourcefile_test.py"
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co = compile("None", fn, "exec")
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self.assertEqual(inspect.getsourcefile(co), None)
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linecache.cache[co.co_filename] = (1, None, "None", co.co_filename)
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self.assertEqual(inspect.getsourcefile(co), fn)
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def test_getfile(self):
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self.assertEqual(inspect.getfile(mod.StupidGit), mod.__file__)
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def test_getmodule_recursion(self):
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from types import ModuleType
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name = '__inspect_dummy'
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m = sys.modules[name] = ModuleType(name)
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m.__file__ = "<string>" # hopefully not a real filename...
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m.__loader__ = "dummy" # pretend the filename is understood by a loader
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exec "def x(): pass" in m.__dict__
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self.assertEqual(inspect.getsourcefile(m.x.func_code), '<string>')
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del sys.modules[name]
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inspect.getmodule(compile('a=10','','single'))
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def test_proceed_with_fake_filename(self):
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'''doctest monkeypatches linecache to enable inspection'''
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fn, source = '<test>', 'def x(): pass\n'
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getlines = linecache.getlines
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def monkey(filename, module_globals=None):
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if filename == fn:
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return source.splitlines(True)
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else:
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return getlines(filename, module_globals)
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linecache.getlines = monkey
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try:
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ns = {}
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exec compile(source, fn, 'single') in ns
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inspect.getsource(ns["x"])
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finally:
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linecache.getlines = getlines
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class TestGettingSourceOfToplevelFrames(GetSourceBase):
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fodderFile = mod
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def test_range_toplevel_frame(self):
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self.maxDiff = None
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self.assertSourceEqual(mod.currentframe, 1, None)
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def test_range_traceback_toplevel_frame(self):
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self.assertSourceEqual(mod.tb, 1, None)
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class TestDecorators(GetSourceBase):
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fodderFile = mod2
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def test_wrapped_decorator(self):
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self.assertSourceEqual(mod2.wrapped, 14, 17)
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def test_replacing_decorator(self):
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self.assertSourceEqual(mod2.gone, 9, 10)
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class TestOneliners(GetSourceBase):
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fodderFile = mod2
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def test_oneline_lambda(self):
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# Test inspect.getsource with a one-line lambda function.
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self.assertSourceEqual(mod2.oll, 25, 25)
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def test_threeline_lambda(self):
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# Test inspect.getsource with a three-line lambda function,
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# where the second and third lines are _not_ indented.
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self.assertSourceEqual(mod2.tll, 28, 30)
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def test_twoline_indented_lambda(self):
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# Test inspect.getsource with a two-line lambda function,
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# where the second line _is_ indented.
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self.assertSourceEqual(mod2.tlli, 33, 34)
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def test_onelinefunc(self):
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# Test inspect.getsource with a regular one-line function.
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self.assertSourceEqual(mod2.onelinefunc, 37, 37)
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def test_manyargs(self):
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# Test inspect.getsource with a regular function where
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# the arguments are on two lines and _not_ indented and
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# the body on the second line with the last arguments.
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self.assertSourceEqual(mod2.manyargs, 40, 41)
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|
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def test_twolinefunc(self):
|
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# Test inspect.getsource with a regular function where
|
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# the body is on two lines, following the argument list and
|
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# continued on the next line by a \\.
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self.assertSourceEqual(mod2.twolinefunc, 44, 45)
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|
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def test_lambda_in_list(self):
|
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# Test inspect.getsource with a one-line lambda function
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# defined in a list, indented.
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self.assertSourceEqual(mod2.a[1], 49, 49)
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|
|
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def test_anonymous(self):
|
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# Test inspect.getsource with a lambda function defined
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# as argument to another function.
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self.assertSourceEqual(mod2.anonymous, 55, 55)
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|
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class TestBuggyCases(GetSourceBase):
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fodderFile = mod2
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|
|
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def test_with_comment(self):
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self.assertSourceEqual(mod2.with_comment, 58, 59)
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|
|
def test_multiline_sig(self):
|
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self.assertSourceEqual(mod2.multiline_sig[0], 63, 64)
|
|
|
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def test_nested_class(self):
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self.assertSourceEqual(mod2.func69().func71, 71, 72)
|
|
|
|
def test_one_liner_followed_by_non_name(self):
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self.assertSourceEqual(mod2.func77, 77, 77)
|
|
|
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def test_one_liner_dedent_non_name(self):
|
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self.assertSourceEqual(mod2.cls82.func83, 83, 83)
|
|
|
|
def test_with_comment_instead_of_docstring(self):
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self.assertSourceEqual(mod2.func88, 88, 90)
|
|
|
|
def test_method_in_dynamic_class(self):
|
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self.assertSourceEqual(mod2.method_in_dynamic_class, 95, 97)
|
|
|
|
@unittest.skipIf(
|
|
not hasattr(unicodedata, '__file__') or
|
|
unicodedata.__file__[-4:] in (".pyc", ".pyo"),
|
|
"unicodedata is not an external binary module")
|
|
def test_findsource_binary(self):
|
|
self.assertRaises(IOError, inspect.getsource, unicodedata)
|
|
self.assertRaises(IOError, inspect.findsource, unicodedata)
|
|
|
|
def test_findsource_code_in_linecache(self):
|
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lines = ["x=1"]
|
|
co = compile(lines[0], "_dynamically_created_file", "exec")
|
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self.assertRaises(IOError, inspect.findsource, co)
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self.assertRaises(IOError, inspect.getsource, co)
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linecache.cache[co.co_filename] = (1, None, lines, co.co_filename)
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self.assertEqual(inspect.findsource(co), (lines,0))
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self.assertEqual(inspect.getsource(co), lines[0])
|
|
|
|
def test_findsource_without_filename(self):
|
|
for fname in ['', '<string>']:
|
|
co = compile('x=1', fname, "exec")
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self.assertRaises(IOError, inspect.findsource, co)
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|
self.assertRaises(IOError, inspect.getsource, co)
|
|
|
|
|
|
class _BrokenDataDescriptor(object):
|
|
"""
|
|
A broken data descriptor. See bug #1785.
|
|
"""
|
|
def __get__(*args):
|
|
raise AssertionError("should not __get__ data descriptors")
|
|
|
|
def __set__(*args):
|
|
raise RuntimeError
|
|
|
|
def __getattr__(*args):
|
|
raise AssertionError("should not __getattr__ data descriptors")
|
|
|
|
|
|
class _BrokenMethodDescriptor(object):
|
|
"""
|
|
A broken method descriptor. See bug #1785.
|
|
"""
|
|
def __get__(*args):
|
|
raise AssertionError("should not __get__ method descriptors")
|
|
|
|
def __getattr__(*args):
|
|
raise AssertionError("should not __getattr__ method descriptors")
|
|
|
|
|
|
# Helper for testing classify_class_attrs.
|
|
def attrs_wo_objs(cls):
|
|
return [t[:3] for t in inspect.classify_class_attrs(cls)]
|
|
|
|
|
|
class TestClassesAndFunctions(unittest.TestCase):
|
|
def test_classic_mro(self):
|
|
# Test classic-class method resolution order.
|
|
class A: pass
|
|
class B(A): pass
|
|
class C(A): pass
|
|
class D(B, C): pass
|
|
|
|
expected = (D, B, A, C)
|
|
got = inspect.getmro(D)
|
|
self.assertEqual(expected, got)
|
|
|
|
def test_newstyle_mro(self):
|
|
# The same w/ new-class MRO.
|
|
class A(object): pass
|
|
class B(A): pass
|
|
class C(A): pass
|
|
class D(B, C): pass
|
|
|
|
expected = (D, B, C, A, object)
|
|
got = inspect.getmro(D)
|
|
self.assertEqual(expected, got)
|
|
|
|
def assertArgSpecEquals(self, routine, args_e, varargs_e = None,
|
|
varkw_e = None, defaults_e = None,
|
|
formatted = None):
|
|
args, varargs, varkw, defaults = inspect.getargspec(routine)
|
|
self.assertEqual(args, args_e)
|
|
self.assertEqual(varargs, varargs_e)
|
|
self.assertEqual(varkw, varkw_e)
|
|
self.assertEqual(defaults, defaults_e)
|
|
if formatted is not None:
|
|
self.assertEqual(inspect.formatargspec(args, varargs, varkw, defaults),
|
|
formatted)
|
|
|
|
def test_getargspec(self):
|
|
self.assertArgSpecEquals(mod.eggs, ['x', 'y'], formatted = '(x, y)')
|
|
|
|
self.assertArgSpecEquals(mod.spam,
|
|
['a', 'b', 'c', 'd', ['e', ['f']]],
|
|
'g', 'h', (3, (4, (5,))),
|
|
'(a, b, c, d=3, (e, (f,))=(4, (5,)), *g, **h)')
|
|
|
|
with check_py3k_warnings(("tuple parameter unpacking has been removed",
|
|
SyntaxWarning),
|
|
quiet=True):
|
|
exec(textwrap.dedent('''
|
|
def spam_deref(a, b, c, d=3, (e, (f,))=(4, (5,)), *g, **h):
|
|
def eggs():
|
|
return a + b + c + d + e + f + g + h
|
|
return eggs
|
|
'''))
|
|
self.assertArgSpecEquals(spam_deref,
|
|
['a', 'b', 'c', 'd', ['e', ['f']]],
|
|
'g', 'h', (3, (4, (5,))),
|
|
'(a, b, c, d=3, (e, (f,))=(4, (5,)), *g, **h)')
|
|
|
|
def test_getargspec_method(self):
|
|
class A(object):
|
|
def m(self):
|
|
pass
|
|
self.assertArgSpecEquals(A.m, ['self'])
|
|
|
|
def test_getargspec_sublistofone(self):
|
|
with check_py3k_warnings(
|
|
("tuple parameter unpacking has been removed", SyntaxWarning),
|
|
("parenthesized argument names are invalid", SyntaxWarning)):
|
|
exec 'def sublistOfOne((foo,)): return 1'
|
|
self.assertArgSpecEquals(sublistOfOne, [['foo']])
|
|
|
|
exec 'def sublistOfOne((foo,)): return (lambda: foo)'
|
|
self.assertArgSpecEquals(sublistOfOne, [['foo']])
|
|
|
|
exec 'def fakeSublistOfOne((foo)): return 1'
|
|
self.assertArgSpecEquals(fakeSublistOfOne, ['foo'])
|
|
|
|
exec 'def sublistOfOne((foo)): return (lambda: foo)'
|
|
self.assertArgSpecEquals(sublistOfOne, ['foo'])
|
|
|
|
|
|
def _classify_test(self, newstyle):
|
|
"""Helper for testing that classify_class_attrs finds a bunch of
|
|
different kinds of attributes on a given class.
|
|
"""
|
|
if newstyle:
|
|
base = object
|
|
else:
|
|
class base:
|
|
pass
|
|
|
|
class A(base):
|
|
def s(): pass
|
|
s = staticmethod(s)
|
|
|
|
def c(cls): pass
|
|
c = classmethod(c)
|
|
|
|
def getp(self): pass
|
|
p = property(getp)
|
|
|
|
def m(self): pass
|
|
|
|
def m1(self): pass
|
|
|
|
datablob = '1'
|
|
|
|
dd = _BrokenDataDescriptor()
|
|
md = _BrokenMethodDescriptor()
|
|
|
|
attrs = attrs_wo_objs(A)
|
|
self.assertIn(('s', 'static method', A), attrs, 'missing static method')
|
|
self.assertIn(('c', 'class method', A), attrs, 'missing class method')
|
|
self.assertIn(('p', 'property', A), attrs, 'missing property')
|
|
self.assertIn(('m', 'method', A), attrs, 'missing plain method')
|
|
self.assertIn(('m1', 'method', A), attrs, 'missing plain method')
|
|
self.assertIn(('datablob', 'data', A), attrs, 'missing data')
|
|
self.assertIn(('md', 'method', A), attrs, 'missing method descriptor')
|
|
self.assertIn(('dd', 'data', A), attrs, 'missing data descriptor')
|
|
|
|
class B(A):
|
|
def m(self): pass
|
|
|
|
attrs = attrs_wo_objs(B)
|
|
self.assertIn(('s', 'static method', A), attrs, 'missing static method')
|
|
self.assertIn(('c', 'class method', A), attrs, 'missing class method')
|
|
self.assertIn(('p', 'property', A), attrs, 'missing property')
|
|
self.assertIn(('m', 'method', B), attrs, 'missing plain method')
|
|
self.assertIn(('m1', 'method', A), attrs, 'missing plain method')
|
|
self.assertIn(('datablob', 'data', A), attrs, 'missing data')
|
|
self.assertIn(('md', 'method', A), attrs, 'missing method descriptor')
|
|
self.assertIn(('dd', 'data', A), attrs, 'missing data descriptor')
|
|
|
|
|
|
class C(A):
|
|
def m(self): pass
|
|
def c(self): pass
|
|
|
|
attrs = attrs_wo_objs(C)
|
|
self.assertIn(('s', 'static method', A), attrs, 'missing static method')
|
|
self.assertIn(('c', 'method', C), attrs, 'missing plain method')
|
|
self.assertIn(('p', 'property', A), attrs, 'missing property')
|
|
self.assertIn(('m', 'method', C), attrs, 'missing plain method')
|
|
self.assertIn(('m1', 'method', A), attrs, 'missing plain method')
|
|
self.assertIn(('datablob', 'data', A), attrs, 'missing data')
|
|
self.assertIn(('md', 'method', A), attrs, 'missing method descriptor')
|
|
self.assertIn(('dd', 'data', A), attrs, 'missing data descriptor')
|
|
|
|
class D(B, C):
|
|
def m1(self): pass
|
|
|
|
attrs = attrs_wo_objs(D)
|
|
self.assertIn(('s', 'static method', A), attrs, 'missing static method')
|
|
if newstyle:
|
|
self.assertIn(('c', 'method', C), attrs, 'missing plain method')
|
|
else:
|
|
self.assertIn(('c', 'class method', A), attrs, 'missing class method')
|
|
self.assertIn(('p', 'property', A), attrs, 'missing property')
|
|
self.assertIn(('m', 'method', B), attrs, 'missing plain method')
|
|
self.assertIn(('m1', 'method', D), attrs, 'missing plain method')
|
|
self.assertIn(('datablob', 'data', A), attrs, 'missing data')
|
|
self.assertIn(('md', 'method', A), attrs, 'missing method descriptor')
|
|
self.assertIn(('dd', 'data', A), attrs, 'missing data descriptor')
|
|
|
|
|
|
def test_classify_oldstyle(self):
|
|
"""classify_class_attrs finds static methods, class methods,
|
|
properties, normal methods, and data attributes on an old-style
|
|
class.
|
|
"""
|
|
self._classify_test(False)
|
|
|
|
|
|
def test_classify_newstyle(self):
|
|
"""Just like test_classify_oldstyle, but for a new-style class.
|
|
"""
|
|
self._classify_test(True)
|
|
|
|
def test_classify_builtin_types(self):
|
|
# Simple sanity check that all built-in types can have their
|
|
# attributes classified.
|
|
for name in dir(__builtin__):
|
|
builtin = getattr(__builtin__, name)
|
|
if isinstance(builtin, type):
|
|
inspect.classify_class_attrs(builtin)
|
|
|
|
def test_getmembers_method(self):
|
|
# Old-style classes
|
|
class B:
|
|
def f(self):
|
|
pass
|
|
|
|
self.assertIn(('f', B.f), inspect.getmembers(B))
|
|
# contrary to spec, ismethod() is also True for unbound methods
|
|
# (see #1785)
|
|
self.assertIn(('f', B.f), inspect.getmembers(B, inspect.ismethod))
|
|
b = B()
|
|
self.assertIn(('f', b.f), inspect.getmembers(b))
|
|
self.assertIn(('f', b.f), inspect.getmembers(b, inspect.ismethod))
|
|
|
|
# New-style classes
|
|
class B(object):
|
|
def f(self):
|
|
pass
|
|
|
|
self.assertIn(('f', B.f), inspect.getmembers(B))
|
|
self.assertIn(('f', B.f), inspect.getmembers(B, inspect.ismethod))
|
|
b = B()
|
|
self.assertIn(('f', b.f), inspect.getmembers(b))
|
|
self.assertIn(('f', b.f), inspect.getmembers(b, inspect.ismethod))
|
|
|
|
|
|
class TestGetcallargsFunctions(unittest.TestCase):
|
|
|
|
# tuple parameters are named '.1', '.2', etc.
|
|
is_tuplename = re.compile(r'^\.\d+$').match
|
|
|
|
def assertEqualCallArgs(self, func, call_params_string, locs=None):
|
|
locs = dict(locs or {}, func=func)
|
|
r1 = eval('func(%s)' % call_params_string, None, locs)
|
|
r2 = eval('inspect.getcallargs(func, %s)' % call_params_string, None,
|
|
locs)
|
|
self.assertEqual(r1, r2)
|
|
|
|
def assertEqualException(self, func, call_param_string, locs=None):
|
|
locs = dict(locs or {}, func=func)
|
|
try:
|
|
eval('func(%s)' % call_param_string, None, locs)
|
|
except Exception, ex1:
|
|
pass
|
|
else:
|
|
self.fail('Exception not raised')
|
|
try:
|
|
eval('inspect.getcallargs(func, %s)' % call_param_string, None,
|
|
locs)
|
|
except Exception, ex2:
|
|
pass
|
|
else:
|
|
self.fail('Exception not raised')
|
|
self.assertIs(type(ex1), type(ex2))
|
|
self.assertEqual(str(ex1), str(ex2))
|
|
|
|
def makeCallable(self, signature):
|
|
"""Create a function that returns its locals(), excluding the
|
|
autogenerated '.1', '.2', etc. tuple param names (if any)."""
|
|
with check_py3k_warnings(
|
|
("tuple parameter unpacking has been removed", SyntaxWarning),
|
|
quiet=True):
|
|
code = ("lambda %s: dict(i for i in locals().items() "
|
|
"if not is_tuplename(i[0]))")
|
|
return eval(code % signature, {'is_tuplename' : self.is_tuplename})
|
|
|
|
def test_plain(self):
|
|
f = self.makeCallable('a, b=1')
|
|
self.assertEqualCallArgs(f, '2')
|
|
self.assertEqualCallArgs(f, '2, 3')
|
|
self.assertEqualCallArgs(f, 'a=2')
|
|
self.assertEqualCallArgs(f, 'b=3, a=2')
|
|
self.assertEqualCallArgs(f, '2, b=3')
|
|
# expand *iterable / **mapping
|
|
self.assertEqualCallArgs(f, '*(2,)')
|
|
self.assertEqualCallArgs(f, '*[2]')
|
|
self.assertEqualCallArgs(f, '*(2, 3)')
|
|
self.assertEqualCallArgs(f, '*[2, 3]')
|
|
self.assertEqualCallArgs(f, '**{"a":2}')
|
|
self.assertEqualCallArgs(f, 'b=3, **{"a":2}')
|
|
self.assertEqualCallArgs(f, '2, **{"b":3}')
|
|
self.assertEqualCallArgs(f, '**{"b":3, "a":2}')
|
|
# expand UserList / UserDict
|
|
self.assertEqualCallArgs(f, '*UserList([2])')
|
|
self.assertEqualCallArgs(f, '*UserList([2, 3])')
|
|
self.assertEqualCallArgs(f, '**UserDict(a=2)')
|
|
self.assertEqualCallArgs(f, '2, **UserDict(b=3)')
|
|
self.assertEqualCallArgs(f, 'b=2, **UserDict(a=3)')
|
|
# unicode keyword args
|
|
self.assertEqualCallArgs(f, '**{u"a":2}')
|
|
self.assertEqualCallArgs(f, 'b=3, **{u"a":2}')
|
|
self.assertEqualCallArgs(f, '2, **{u"b":3}')
|
|
self.assertEqualCallArgs(f, '**{u"b":3, u"a":2}')
|
|
|
|
def test_varargs(self):
|
|
f = self.makeCallable('a, b=1, *c')
|
|
self.assertEqualCallArgs(f, '2')
|
|
self.assertEqualCallArgs(f, '2, 3')
|
|
self.assertEqualCallArgs(f, '2, 3, 4')
|
|
self.assertEqualCallArgs(f, '*(2,3,4)')
|
|
self.assertEqualCallArgs(f, '2, *[3,4]')
|
|
self.assertEqualCallArgs(f, '2, 3, *UserList([4])')
|
|
|
|
def test_varkw(self):
|
|
f = self.makeCallable('a, b=1, **c')
|
|
self.assertEqualCallArgs(f, 'a=2')
|
|
self.assertEqualCallArgs(f, '2, b=3, c=4')
|
|
self.assertEqualCallArgs(f, 'b=3, a=2, c=4')
|
|
self.assertEqualCallArgs(f, 'c=4, **{"a":2, "b":3}')
|
|
self.assertEqualCallArgs(f, '2, c=4, **{"b":3}')
|
|
self.assertEqualCallArgs(f, 'b=2, **{"a":3, "c":4}')
|
|
self.assertEqualCallArgs(f, '**UserDict(a=2, b=3, c=4)')
|
|
self.assertEqualCallArgs(f, '2, c=4, **UserDict(b=3)')
|
|
self.assertEqualCallArgs(f, 'b=2, **UserDict(a=3, c=4)')
|
|
# unicode keyword args
|
|
self.assertEqualCallArgs(f, 'c=4, **{u"a":2, u"b":3}')
|
|
self.assertEqualCallArgs(f, '2, c=4, **{u"b":3}')
|
|
self.assertEqualCallArgs(f, 'b=2, **{u"a":3, u"c":4}')
|
|
|
|
def test_varkw_only(self):
|
|
# issue11256:
|
|
f = self.makeCallable('**c')
|
|
self.assertEqualCallArgs(f, '')
|
|
self.assertEqualCallArgs(f, 'a=1')
|
|
self.assertEqualCallArgs(f, 'a=1, b=2')
|
|
self.assertEqualCallArgs(f, 'c=3, **{"a": 1, "b": 2}')
|
|
self.assertEqualCallArgs(f, '**UserDict(a=1, b=2)')
|
|
self.assertEqualCallArgs(f, 'c=3, **UserDict(a=1, b=2)')
|
|
|
|
def test_tupleargs(self):
|
|
f = self.makeCallable('(b,c), (d,(e,f))=(0,[1,2])')
|
|
self.assertEqualCallArgs(f, '(2,3)')
|
|
self.assertEqualCallArgs(f, '[2,3]')
|
|
self.assertEqualCallArgs(f, 'UserList([2,3])')
|
|
self.assertEqualCallArgs(f, '(2,3), (4,(5,6))')
|
|
self.assertEqualCallArgs(f, '(2,3), (4,[5,6])')
|
|
self.assertEqualCallArgs(f, '(2,3), [4,UserList([5,6])]')
|
|
|
|
def test_multiple_features(self):
|
|
f = self.makeCallable('a, b=2, (c,(d,e))=(3,[4,5]), *f, **g')
|
|
self.assertEqualCallArgs(f, '2, 3, (4,[5,6]), 7')
|
|
self.assertEqualCallArgs(f, '2, 3, *[(4,[5,6]), 7], x=8')
|
|
self.assertEqualCallArgs(f, '2, 3, x=8, *[(4,[5,6]), 7]')
|
|
self.assertEqualCallArgs(f, '2, x=8, *[3, (4,[5,6]), 7], y=9')
|
|
self.assertEqualCallArgs(f, 'x=8, *[2, 3, (4,[5,6])], y=9')
|
|
self.assertEqualCallArgs(f, 'x=8, *UserList([2, 3, (4,[5,6])]), '
|
|
'**{"y":9, "z":10}')
|
|
self.assertEqualCallArgs(f, '2, x=8, *UserList([3, (4,[5,6])]), '
|
|
'**UserDict(y=9, z=10)')
|
|
|
|
def test_errors(self):
|
|
f0 = self.makeCallable('')
|
|
f1 = self.makeCallable('a, b')
|
|
f2 = self.makeCallable('a, b=1')
|
|
# f0 takes no arguments
|
|
self.assertEqualException(f0, '1')
|
|
self.assertEqualException(f0, 'x=1')
|
|
self.assertEqualException(f0, '1,x=1')
|
|
# f1 takes exactly 2 arguments
|
|
self.assertEqualException(f1, '')
|
|
self.assertEqualException(f1, '1')
|
|
self.assertEqualException(f1, 'a=2')
|
|
self.assertEqualException(f1, 'b=3')
|
|
# f2 takes at least 1 argument
|
|
self.assertEqualException(f2, '')
|
|
self.assertEqualException(f2, 'b=3')
|
|
for f in f1, f2:
|
|
# f1/f2 takes exactly/at most 2 arguments
|
|
self.assertEqualException(f, '2, 3, 4')
|
|
self.assertEqualException(f, '1, 2, 3, a=1')
|
|
self.assertEqualException(f, '2, 3, 4, c=5')
|
|
self.assertEqualException(f, '2, 3, 4, a=1, c=5')
|
|
# f got an unexpected keyword argument
|
|
self.assertEqualException(f, 'c=2')
|
|
self.assertEqualException(f, '2, c=3')
|
|
self.assertEqualException(f, '2, 3, c=4')
|
|
self.assertEqualException(f, '2, c=4, b=3')
|
|
if have_unicode:
|
|
self.assertEqualException(f, '**{u"\u03c0\u03b9": 4}')
|
|
# f got multiple values for keyword argument
|
|
self.assertEqualException(f, '1, a=2')
|
|
self.assertEqualException(f, '1, **{"a":2}')
|
|
self.assertEqualException(f, '1, 2, b=3')
|
|
# XXX: Python inconsistency
|
|
# - for functions and bound methods: unexpected keyword 'c'
|
|
# - for unbound methods: multiple values for keyword 'a'
|
|
#self.assertEqualException(f, '1, c=3, a=2')
|
|
f = self.makeCallable('(a,b)=(0,1)')
|
|
self.assertEqualException(f, '1')
|
|
self.assertEqualException(f, '[1]')
|
|
self.assertEqualException(f, '(1,2,3)')
|
|
# issue11256:
|
|
f3 = self.makeCallable('**c')
|
|
self.assertEqualException(f3, '1, 2')
|
|
self.assertEqualException(f3, '1, 2, a=1, b=2')
|
|
|
|
|
|
class TestGetcallargsFunctionsCellVars(TestGetcallargsFunctions):
|
|
|
|
def makeCallable(self, signature):
|
|
"""Create a function that returns its locals(), excluding the
|
|
autogenerated '.1', '.2', etc. tuple param names (if any)."""
|
|
with check_py3k_warnings(
|
|
("tuple parameter unpacking has been removed", SyntaxWarning),
|
|
quiet=True):
|
|
code = """lambda %s: (
|
|
(lambda: a+b+c+d+d+e+f+g+h), # make parameters cell vars
|
|
dict(i for i in locals().items()
|
|
if not is_tuplename(i[0]))
|
|
)[1]"""
|
|
return eval(code % signature, {'is_tuplename' : self.is_tuplename})
|
|
|
|
|
|
class TestGetcallargsMethods(TestGetcallargsFunctions):
|
|
|
|
def setUp(self):
|
|
class Foo(object):
|
|
pass
|
|
self.cls = Foo
|
|
self.inst = Foo()
|
|
|
|
def makeCallable(self, signature):
|
|
assert 'self' not in signature
|
|
mk = super(TestGetcallargsMethods, self).makeCallable
|
|
self.cls.method = mk('self, ' + signature)
|
|
return self.inst.method
|
|
|
|
class TestGetcallargsUnboundMethods(TestGetcallargsMethods):
|
|
|
|
def makeCallable(self, signature):
|
|
super(TestGetcallargsUnboundMethods, self).makeCallable(signature)
|
|
return self.cls.method
|
|
|
|
def assertEqualCallArgs(self, func, call_params_string, locs=None):
|
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return super(TestGetcallargsUnboundMethods, self).assertEqualCallArgs(
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*self._getAssertEqualParams(func, call_params_string, locs))
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|
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def assertEqualException(self, func, call_params_string, locs=None):
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return super(TestGetcallargsUnboundMethods, self).assertEqualException(
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*self._getAssertEqualParams(func, call_params_string, locs))
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|
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def _getAssertEqualParams(self, func, call_params_string, locs=None):
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assert 'inst' not in call_params_string
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locs = dict(locs or {}, inst=self.inst)
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return (func, 'inst,' + call_params_string, locs)
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|
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def test_main():
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run_unittest(
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|
TestDecorators, TestRetrievingSourceCode, TestOneliners, TestBuggyCases,
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TestInterpreterStack, TestClassesAndFunctions, TestPredicates,
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|
TestGetcallargsFunctions, TestGetcallargsFunctionsCellVars,
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|
TestGetcallargsMethods, TestGetcallargsUnboundMethods,
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|
TestGettingSourceOfToplevelFrames)
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|
|
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if __name__ == "__main__":
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test_main()
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