Benjamin Peterson | 25cd7eb | 2010-03-30 18:42:32 +0000 | [diff] [blame] | 1 | import re |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 2 | import sys |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 3 | import types |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 4 | import unittest |
| 5 | import inspect |
R. David Murray | a1b3740 | 2010-06-17 02:04:29 +0000 | [diff] [blame] | 6 | import linecache |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 7 | import datetime |
Guido van Rossum | 813b0e5 | 2007-05-21 18:11:34 +0000 | [diff] [blame] | 8 | import collections |
Alexander Belopolsky | f546e70 | 2010-12-02 00:10:11 +0000 | [diff] [blame] | 9 | import os |
| 10 | import shutil |
Christian Heimes | a3538eb | 2007-11-06 11:44:48 +0000 | [diff] [blame] | 11 | from os.path import normcase |
Ka-Ping Yee | 6397c7c | 2001-02-27 14:43:21 +0000 | [diff] [blame] | 12 | |
Alexander Belopolsky | f546e70 | 2010-12-02 00:10:11 +0000 | [diff] [blame] | 13 | from test.support import run_unittest, TESTFN, DirsOnSysPath |
Ka-Ping Yee | 6397c7c | 2001-02-27 14:43:21 +0000 | [diff] [blame] | 14 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 15 | from test import inspect_fodder as mod |
| 16 | from test import inspect_fodder2 as mod2 |
Ka-Ping Yee | 6397c7c | 2001-02-27 14:43:21 +0000 | [diff] [blame] | 17 | |
R. David Murray | 74b8924 | 2009-05-13 17:33:03 +0000 | [diff] [blame] | 18 | # C module for test_findsource_binary |
R. David Murray | b565577 | 2009-05-14 16:17:50 +0000 | [diff] [blame] | 19 | import unicodedata |
R. David Murray | 74b8924 | 2009-05-13 17:33:03 +0000 | [diff] [blame] | 20 | |
Ka-Ping Yee | 6397c7c | 2001-02-27 14:43:21 +0000 | [diff] [blame] | 21 | # Functions tested in this suite: |
| 22 | # ismodule, isclass, ismethod, isfunction, istraceback, isframe, iscode, |
Christian Heimes | 7131fd9 | 2008-02-19 14:21:46 +0000 | [diff] [blame] | 23 | # isbuiltin, isroutine, isgenerator, isgeneratorfunction, getmembers, |
| 24 | # getdoc, getfile, getmodule, getsourcefile, getcomments, getsource, |
| 25 | # getclasstree, getargspec, getargvalues, formatargspec, formatargvalues, |
| 26 | # currentframe, stack, trace, isdatadescriptor |
Ka-Ping Yee | 6397c7c | 2001-02-27 14:43:21 +0000 | [diff] [blame] | 27 | |
Nick Coghlan | f088e5e | 2008-12-14 11:50:48 +0000 | [diff] [blame] | 28 | # NOTE: There are some additional tests relating to interaction with |
| 29 | # zipimport in the test_zipimport_support test module. |
| 30 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 31 | modfile = mod.__file__ |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 32 | if modfile.endswith(('c', 'o')): |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 33 | modfile = modfile[:-1] |
Ka-Ping Yee | 6397c7c | 2001-02-27 14:43:21 +0000 | [diff] [blame] | 34 | |
Christian Heimes | a3538eb | 2007-11-06 11:44:48 +0000 | [diff] [blame] | 35 | # Normalize file names: on Windows, the case of file names of compiled |
| 36 | # modules depends on the path used to start the python executable. |
| 37 | modfile = normcase(modfile) |
| 38 | |
| 39 | def revise(filename, *args): |
| 40 | return (normcase(filename),) + args |
| 41 | |
Georg Brandl | 1a3284e | 2007-12-02 09:40:06 +0000 | [diff] [blame] | 42 | import builtins |
Ka-Ping Yee | 6397c7c | 2001-02-27 14:43:21 +0000 | [diff] [blame] | 43 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 44 | git = mod.StupidGit() |
Ka-Ping Yee | 6397c7c | 2001-02-27 14:43:21 +0000 | [diff] [blame] | 45 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 46 | class IsTestBase(unittest.TestCase): |
| 47 | predicates = set([inspect.isbuiltin, inspect.isclass, inspect.iscode, |
| 48 | inspect.isframe, inspect.isfunction, inspect.ismethod, |
Christian Heimes | 7131fd9 | 2008-02-19 14:21:46 +0000 | [diff] [blame] | 49 | inspect.ismodule, inspect.istraceback, |
| 50 | inspect.isgenerator, inspect.isgeneratorfunction]) |
Tim Peters | 5a9fb3c | 2005-01-07 16:01:32 +0000 | [diff] [blame] | 51 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 52 | def istest(self, predicate, exp): |
| 53 | obj = eval(exp) |
Benjamin Peterson | c9c0f20 | 2009-06-30 23:06:06 +0000 | [diff] [blame] | 54 | self.assertTrue(predicate(obj), '%s(%s)' % (predicate.__name__, exp)) |
Tim Peters | 5a9fb3c | 2005-01-07 16:01:32 +0000 | [diff] [blame] | 55 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 56 | for other in self.predicates - set([predicate]): |
Christian Heimes | 7131fd9 | 2008-02-19 14:21:46 +0000 | [diff] [blame] | 57 | if predicate == inspect.isgeneratorfunction and\ |
| 58 | other == inspect.isfunction: |
| 59 | continue |
Benjamin Peterson | c9c0f20 | 2009-06-30 23:06:06 +0000 | [diff] [blame] | 60 | self.assertFalse(other(obj), 'not %s(%s)' % (other.__name__, exp)) |
Ka-Ping Yee | 6397c7c | 2001-02-27 14:43:21 +0000 | [diff] [blame] | 61 | |
Christian Heimes | 7131fd9 | 2008-02-19 14:21:46 +0000 | [diff] [blame] | 62 | def generator_function_example(self): |
| 63 | for i in range(2): |
| 64 | yield i |
| 65 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 66 | class TestPredicates(IsTestBase): |
Christian Heimes | 227c800 | 2008-03-03 20:34:40 +0000 | [diff] [blame] | 67 | def test_sixteen(self): |
Guido van Rossum | c1f779c | 2007-07-03 08:25:58 +0000 | [diff] [blame] | 68 | count = len([x for x in dir(inspect) if x.startswith('is')]) |
Christian Heimes | 7131fd9 | 2008-02-19 14:21:46 +0000 | [diff] [blame] | 69 | # This test is here for remember you to update Doc/library/inspect.rst |
Christian Heimes | 7864476 | 2008-03-04 23:39:23 +0000 | [diff] [blame] | 70 | # which claims there are 16 such functions |
Christian Heimes | 227c800 | 2008-03-03 20:34:40 +0000 | [diff] [blame] | 71 | expected = 16 |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 72 | err_msg = "There are %d (not %d) is* functions" % (count, expected) |
| 73 | self.assertEqual(count, expected, err_msg) |
Tim Peters | 5a9fb3c | 2005-01-07 16:01:32 +0000 | [diff] [blame] | 74 | |
Christian Heimes | 7131fd9 | 2008-02-19 14:21:46 +0000 | [diff] [blame] | 75 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 76 | def test_excluding_predicates(self): |
Antoine Pitrou | d5a1a21 | 2012-06-17 23:18:07 +0200 | [diff] [blame] | 77 | global tb |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 78 | self.istest(inspect.isbuiltin, 'sys.exit') |
| 79 | self.istest(inspect.isbuiltin, '[].append') |
Neal Norwitz | 221085d | 2007-02-25 20:55:47 +0000 | [diff] [blame] | 80 | self.istest(inspect.iscode, 'mod.spam.__code__') |
Antoine Pitrou | d5a1a21 | 2012-06-17 23:18:07 +0200 | [diff] [blame] | 81 | try: |
| 82 | 1/0 |
| 83 | except: |
| 84 | tb = sys.exc_info()[2] |
| 85 | self.istest(inspect.isframe, 'tb.tb_frame') |
| 86 | self.istest(inspect.istraceback, 'tb') |
| 87 | if hasattr(types, 'GetSetDescriptorType'): |
| 88 | self.istest(inspect.isgetsetdescriptor, |
| 89 | 'type(tb.tb_frame).f_locals') |
| 90 | else: |
| 91 | self.assertFalse(inspect.isgetsetdescriptor(type(tb.tb_frame).f_locals)) |
| 92 | finally: |
| 93 | # Clear traceback and all the frames and local variables hanging to it. |
| 94 | tb = None |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 95 | self.istest(inspect.isfunction, 'mod.spam') |
Christian Heimes | 4a22b5d | 2007-11-25 09:39:14 +0000 | [diff] [blame] | 96 | self.istest(inspect.isfunction, 'mod.StupidGit.abuse') |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 97 | self.istest(inspect.ismethod, 'git.argue') |
| 98 | self.istest(inspect.ismodule, 'mod') |
Guido van Rossum | 813b0e5 | 2007-05-21 18:11:34 +0000 | [diff] [blame] | 99 | self.istest(inspect.isdatadescriptor, 'collections.defaultdict.default_factory') |
Christian Heimes | 7131fd9 | 2008-02-19 14:21:46 +0000 | [diff] [blame] | 100 | self.istest(inspect.isgenerator, '(x for x in range(2))') |
| 101 | self.istest(inspect.isgeneratorfunction, 'generator_function_example') |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 102 | if hasattr(types, 'MemberDescriptorType'): |
| 103 | self.istest(inspect.ismemberdescriptor, 'datetime.timedelta.days') |
| 104 | else: |
Benjamin Peterson | c9c0f20 | 2009-06-30 23:06:06 +0000 | [diff] [blame] | 105 | self.assertFalse(inspect.ismemberdescriptor(datetime.timedelta.days)) |
Ka-Ping Yee | 6397c7c | 2001-02-27 14:43:21 +0000 | [diff] [blame] | 106 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 107 | def test_isroutine(self): |
Benjamin Peterson | c9c0f20 | 2009-06-30 23:06:06 +0000 | [diff] [blame] | 108 | self.assertTrue(inspect.isroutine(mod.spam)) |
| 109 | self.assertTrue(inspect.isroutine([].count)) |
Ka-Ping Yee | 6397c7c | 2001-02-27 14:43:21 +0000 | [diff] [blame] | 110 | |
Benjamin Peterson | c465600 | 2009-01-17 22:41:18 +0000 | [diff] [blame] | 111 | def test_isclass(self): |
| 112 | self.istest(inspect.isclass, 'mod.StupidGit') |
| 113 | self.assertTrue(inspect.isclass(list)) |
| 114 | |
| 115 | class CustomGetattr(object): |
| 116 | def __getattr__(self, attr): |
| 117 | return None |
| 118 | self.assertFalse(inspect.isclass(CustomGetattr())) |
| 119 | |
Benjamin Peterson | 058e31e | 2009-01-16 03:54:08 +0000 | [diff] [blame] | 120 | def test_get_slot_members(self): |
| 121 | class C(object): |
| 122 | __slots__ = ("a", "b") |
| 123 | |
| 124 | x = C() |
| 125 | x.a = 42 |
| 126 | members = dict(inspect.getmembers(x)) |
Benjamin Peterson | 577473f | 2010-01-19 00:09:57 +0000 | [diff] [blame] | 127 | self.assertIn('a', members) |
| 128 | self.assertNotIn('b', members) |
Benjamin Peterson | 058e31e | 2009-01-16 03:54:08 +0000 | [diff] [blame] | 129 | |
Benjamin Peterson | a0dfa82 | 2009-11-13 02:25:08 +0000 | [diff] [blame] | 130 | def test_isabstract(self): |
| 131 | from abc import ABCMeta, abstractmethod |
| 132 | |
| 133 | class AbstractClassExample(metaclass=ABCMeta): |
| 134 | |
| 135 | @abstractmethod |
| 136 | def foo(self): |
| 137 | pass |
| 138 | |
| 139 | class ClassExample(AbstractClassExample): |
| 140 | def foo(self): |
| 141 | pass |
| 142 | |
| 143 | a = ClassExample() |
| 144 | |
| 145 | # Test general behaviour. |
| 146 | self.assertTrue(inspect.isabstract(AbstractClassExample)) |
| 147 | self.assertFalse(inspect.isabstract(ClassExample)) |
| 148 | self.assertFalse(inspect.isabstract(a)) |
| 149 | self.assertFalse(inspect.isabstract(int)) |
| 150 | self.assertFalse(inspect.isabstract(5)) |
| 151 | |
Benjamin Peterson | 058e31e | 2009-01-16 03:54:08 +0000 | [diff] [blame] | 152 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 153 | class TestInterpreterStack(IsTestBase): |
| 154 | def __init__(self, *args, **kwargs): |
| 155 | unittest.TestCase.__init__(self, *args, **kwargs) |
Tim Peters | 5a9fb3c | 2005-01-07 16:01:32 +0000 | [diff] [blame] | 156 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 157 | git.abuse(7, 8, 9) |
Ka-Ping Yee | 6397c7c | 2001-02-27 14:43:21 +0000 | [diff] [blame] | 158 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 159 | def test_abuse_done(self): |
| 160 | self.istest(inspect.istraceback, 'git.ex[2]') |
| 161 | self.istest(inspect.isframe, 'mod.fr') |
Ka-Ping Yee | 6397c7c | 2001-02-27 14:43:21 +0000 | [diff] [blame] | 162 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 163 | def test_stack(self): |
Benjamin Peterson | c9c0f20 | 2009-06-30 23:06:06 +0000 | [diff] [blame] | 164 | self.assertTrue(len(mod.st) >= 5) |
Christian Heimes | a3538eb | 2007-11-06 11:44:48 +0000 | [diff] [blame] | 165 | self.assertEqual(revise(*mod.st[0][1:]), |
Tim Peters | 5a9fb3c | 2005-01-07 16:01:32 +0000 | [diff] [blame] | 166 | (modfile, 16, 'eggs', [' st = inspect.stack()\n'], 0)) |
Christian Heimes | a3538eb | 2007-11-06 11:44:48 +0000 | [diff] [blame] | 167 | self.assertEqual(revise(*mod.st[1][1:]), |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 168 | (modfile, 9, 'spam', [' eggs(b + d, c + f)\n'], 0)) |
Christian Heimes | a3538eb | 2007-11-06 11:44:48 +0000 | [diff] [blame] | 169 | self.assertEqual(revise(*mod.st[2][1:]), |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 170 | (modfile, 43, 'argue', [' spam(a, b, c)\n'], 0)) |
Christian Heimes | a3538eb | 2007-11-06 11:44:48 +0000 | [diff] [blame] | 171 | self.assertEqual(revise(*mod.st[3][1:]), |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 172 | (modfile, 39, 'abuse', [' self.argue(a, b, c)\n'], 0)) |
Ka-Ping Yee | 6397c7c | 2001-02-27 14:43:21 +0000 | [diff] [blame] | 173 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 174 | def test_trace(self): |
| 175 | self.assertEqual(len(git.tr), 3) |
Florent Xicluna | c857592 | 2010-03-24 17:37:49 +0000 | [diff] [blame] | 176 | self.assertEqual(revise(*git.tr[0][1:]), |
| 177 | (modfile, 43, 'argue', [' spam(a, b, c)\n'], 0)) |
| 178 | self.assertEqual(revise(*git.tr[1][1:]), |
| 179 | (modfile, 9, 'spam', [' eggs(b + d, c + f)\n'], 0)) |
| 180 | self.assertEqual(revise(*git.tr[2][1:]), |
| 181 | (modfile, 18, 'eggs', [' q = y / 0\n'], 0)) |
Ka-Ping Yee | 6397c7c | 2001-02-27 14:43:21 +0000 | [diff] [blame] | 182 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 183 | def test_frame(self): |
| 184 | args, varargs, varkw, locals = inspect.getargvalues(mod.fr) |
| 185 | self.assertEqual(args, ['x', 'y']) |
| 186 | self.assertEqual(varargs, None) |
| 187 | self.assertEqual(varkw, None) |
| 188 | self.assertEqual(locals, {'x': 11, 'p': 11, 'y': 14}) |
| 189 | self.assertEqual(inspect.formatargvalues(args, varargs, varkw, locals), |
| 190 | '(x=11, y=14)') |
Ka-Ping Yee | 6397c7c | 2001-02-27 14:43:21 +0000 | [diff] [blame] | 191 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 192 | def test_previous_frame(self): |
| 193 | args, varargs, varkw, locals = inspect.getargvalues(mod.fr.f_back) |
Guido van Rossum | 1bc535d | 2007-05-15 18:46:22 +0000 | [diff] [blame] | 194 | self.assertEqual(args, ['a', 'b', 'c', 'd', 'e', 'f']) |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 195 | self.assertEqual(varargs, 'g') |
| 196 | self.assertEqual(varkw, 'h') |
| 197 | self.assertEqual(inspect.formatargvalues(args, varargs, varkw, locals), |
Guido van Rossum | 1bc535d | 2007-05-15 18:46:22 +0000 | [diff] [blame] | 198 | '(a=7, b=8, c=9, d=3, e=4, f=5, *g=(), **h={})') |
Ka-Ping Yee | 6397c7c | 2001-02-27 14:43:21 +0000 | [diff] [blame] | 199 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 200 | class GetSourceBase(unittest.TestCase): |
| 201 | # Subclasses must override. |
Alexander Belopolsky | f546e70 | 2010-12-02 00:10:11 +0000 | [diff] [blame] | 202 | fodderModule = None |
Tim Peters | 5a9fb3c | 2005-01-07 16:01:32 +0000 | [diff] [blame] | 203 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 204 | def __init__(self, *args, **kwargs): |
| 205 | unittest.TestCase.__init__(self, *args, **kwargs) |
Ka-Ping Yee | 6397c7c | 2001-02-27 14:43:21 +0000 | [diff] [blame] | 206 | |
Alexander Belopolsky | f546e70 | 2010-12-02 00:10:11 +0000 | [diff] [blame] | 207 | with open(inspect.getsourcefile(self.fodderModule)) as fp: |
Philip Jenvey | a27c5bd | 2009-05-28 06:09:08 +0000 | [diff] [blame] | 208 | self.source = fp.read() |
Ka-Ping Yee | 6397c7c | 2001-02-27 14:43:21 +0000 | [diff] [blame] | 209 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 210 | def sourcerange(self, top, bottom): |
| 211 | lines = self.source.split("\n") |
| 212 | return "\n".join(lines[top-1:bottom]) + "\n" |
Tim Peters | e0b2d7a | 2001-09-22 06:10:55 +0000 | [diff] [blame] | 213 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 214 | def assertSourceEqual(self, obj, top, bottom): |
| 215 | self.assertEqual(inspect.getsource(obj), |
| 216 | self.sourcerange(top, bottom)) |
Tim Peters | 5a9fb3c | 2005-01-07 16:01:32 +0000 | [diff] [blame] | 217 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 218 | class TestRetrievingSourceCode(GetSourceBase): |
Alexander Belopolsky | f546e70 | 2010-12-02 00:10:11 +0000 | [diff] [blame] | 219 | fodderModule = mod |
Tim Peters | 5a9fb3c | 2005-01-07 16:01:32 +0000 | [diff] [blame] | 220 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 221 | def test_getclasses(self): |
| 222 | classes = inspect.getmembers(mod, inspect.isclass) |
| 223 | self.assertEqual(classes, |
| 224 | [('FesteringGob', mod.FesteringGob), |
| 225 | ('MalodorousPervert', mod.MalodorousPervert), |
| 226 | ('ParrotDroppings', mod.ParrotDroppings), |
| 227 | ('StupidGit', mod.StupidGit)]) |
| 228 | tree = inspect.getclasstree([cls[1] for cls in classes], 1) |
| 229 | self.assertEqual(tree, |
Thomas Wouters | 725af87 | 2006-04-15 09:13:19 +0000 | [diff] [blame] | 230 | [(object, ()), |
| 231 | [(mod.ParrotDroppings, (object,)), |
| 232 | (mod.StupidGit, (object,)), |
| 233 | [(mod.MalodorousPervert, (mod.StupidGit,)), |
| 234 | [(mod.FesteringGob, (mod.MalodorousPervert, |
| 235 | mod.ParrotDroppings)) |
| 236 | ] |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 237 | ] |
| 238 | ] |
| 239 | ]) |
Tim Peters | 5a9fb3c | 2005-01-07 16:01:32 +0000 | [diff] [blame] | 240 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 241 | def test_getfunctions(self): |
| 242 | functions = inspect.getmembers(mod, inspect.isfunction) |
| 243 | self.assertEqual(functions, [('eggs', mod.eggs), |
| 244 | ('spam', mod.spam)]) |
Johannes Gijsbers | c473c99 | 2004-08-18 12:40:31 +0000 | [diff] [blame] | 245 | |
R. David Murray | 378c0cf | 2010-02-24 01:46:21 +0000 | [diff] [blame] | 246 | @unittest.skipIf(sys.flags.optimize >= 2, |
| 247 | "Docstrings are omitted with -O2 and above") |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 248 | def test_getdoc(self): |
| 249 | self.assertEqual(inspect.getdoc(mod), 'A module docstring.') |
| 250 | self.assertEqual(inspect.getdoc(mod.StupidGit), |
| 251 | 'A longer,\n\nindented\n\ndocstring.') |
| 252 | self.assertEqual(inspect.getdoc(git.abuse), |
| 253 | 'Another\n\ndocstring\n\ncontaining\n\ntabs') |
Johannes Gijsbers | c473c99 | 2004-08-18 12:40:31 +0000 | [diff] [blame] | 254 | |
Georg Brandl | 0c77a82 | 2008-06-10 16:37:50 +0000 | [diff] [blame] | 255 | def test_cleandoc(self): |
| 256 | self.assertEqual(inspect.cleandoc('An\n indented\n docstring.'), |
| 257 | 'An\nindented\ndocstring.') |
| 258 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 259 | def test_getcomments(self): |
| 260 | self.assertEqual(inspect.getcomments(mod), '# line 1\n') |
| 261 | self.assertEqual(inspect.getcomments(mod.StupidGit), '# line 20\n') |
Johannes Gijsbers | c473c99 | 2004-08-18 12:40:31 +0000 | [diff] [blame] | 262 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 263 | def test_getmodule(self): |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 264 | # Check actual module |
| 265 | self.assertEqual(inspect.getmodule(mod), mod) |
| 266 | # Check class (uses __module__ attribute) |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 267 | self.assertEqual(inspect.getmodule(mod.StupidGit), mod) |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 268 | # Check a method (no __module__ attribute, falls back to filename) |
| 269 | self.assertEqual(inspect.getmodule(mod.StupidGit.abuse), mod) |
| 270 | # Do it again (check the caching isn't broken) |
| 271 | self.assertEqual(inspect.getmodule(mod.StupidGit.abuse), mod) |
| 272 | # Check a builtin |
Georg Brandl | 1a3284e | 2007-12-02 09:40:06 +0000 | [diff] [blame] | 273 | self.assertEqual(inspect.getmodule(str), sys.modules["builtins"]) |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 274 | # Check filename override |
| 275 | self.assertEqual(inspect.getmodule(None, modfile), mod) |
Johannes Gijsbers | c473c99 | 2004-08-18 12:40:31 +0000 | [diff] [blame] | 276 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 277 | def test_getsource(self): |
| 278 | self.assertSourceEqual(git.abuse, 29, 39) |
| 279 | self.assertSourceEqual(mod.StupidGit, 21, 46) |
Johannes Gijsbers | c473c99 | 2004-08-18 12:40:31 +0000 | [diff] [blame] | 280 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 281 | def test_getsourcefile(self): |
Christian Heimes | a3538eb | 2007-11-06 11:44:48 +0000 | [diff] [blame] | 282 | self.assertEqual(normcase(inspect.getsourcefile(mod.spam)), modfile) |
| 283 | self.assertEqual(normcase(inspect.getsourcefile(git.abuse)), modfile) |
R. David Murray | a1b3740 | 2010-06-17 02:04:29 +0000 | [diff] [blame] | 284 | fn = "_non_existing_filename_used_for_sourcefile_test.py" |
| 285 | co = compile("None", fn, "exec") |
R. David Murray | 4155f97 | 2010-06-17 13:23:18 +0000 | [diff] [blame] | 286 | self.assertEqual(inspect.getsourcefile(co), None) |
R. David Murray | a1b3740 | 2010-06-17 02:04:29 +0000 | [diff] [blame] | 287 | linecache.cache[co.co_filename] = (1, None, "None", co.co_filename) |
Antoine Pitrou | 5d62a61 | 2012-07-08 13:48:46 +0200 | [diff] [blame] | 288 | try: |
| 289 | self.assertEqual(normcase(inspect.getsourcefile(co)), fn) |
| 290 | finally: |
| 291 | del linecache.cache[co.co_filename] |
Johannes Gijsbers | c473c99 | 2004-08-18 12:40:31 +0000 | [diff] [blame] | 292 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 293 | def test_getfile(self): |
| 294 | self.assertEqual(inspect.getfile(mod.StupidGit), mod.__file__) |
Johannes Gijsbers | c473c99 | 2004-08-18 12:40:31 +0000 | [diff] [blame] | 295 | |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 296 | def test_getmodule_recursion(self): |
Christian Heimes | 45f9af3 | 2007-11-27 21:50:00 +0000 | [diff] [blame] | 297 | from types import ModuleType |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 298 | name = '__inspect_dummy' |
Christian Heimes | 45f9af3 | 2007-11-27 21:50:00 +0000 | [diff] [blame] | 299 | m = sys.modules[name] = ModuleType(name) |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 300 | m.__file__ = "<string>" # hopefully not a real filename... |
| 301 | m.__loader__ = "dummy" # pretend the filename is understood by a loader |
Georg Brandl | 7cae87c | 2006-09-06 06:51:57 +0000 | [diff] [blame] | 302 | exec("def x(): pass", m.__dict__) |
Neal Norwitz | 221085d | 2007-02-25 20:55:47 +0000 | [diff] [blame] | 303 | self.assertEqual(inspect.getsourcefile(m.x.__code__), '<string>') |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 304 | del sys.modules[name] |
| 305 | inspect.getmodule(compile('a=10','','single')) |
| 306 | |
Benjamin Peterson | 9620cc0 | 2011-06-11 15:53:11 -0500 | [diff] [blame] | 307 | def test_proceed_with_fake_filename(self): |
| 308 | '''doctest monkeypatches linecache to enable inspection''' |
| 309 | fn, source = '<test>', 'def x(): pass\n' |
| 310 | getlines = linecache.getlines |
| 311 | def monkey(filename, module_globals=None): |
| 312 | if filename == fn: |
Ezio Melotti | d8b509b | 2011-09-28 17:37:55 +0300 | [diff] [blame] | 313 | return source.splitlines(keepends=True) |
Benjamin Peterson | 9620cc0 | 2011-06-11 15:53:11 -0500 | [diff] [blame] | 314 | else: |
| 315 | return getlines(filename, module_globals) |
| 316 | linecache.getlines = monkey |
| 317 | try: |
| 318 | ns = {} |
| 319 | exec(compile(source, fn, 'single'), ns) |
| 320 | inspect.getsource(ns["x"]) |
| 321 | finally: |
| 322 | linecache.getlines = getlines |
| 323 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 324 | class TestDecorators(GetSourceBase): |
Alexander Belopolsky | f546e70 | 2010-12-02 00:10:11 +0000 | [diff] [blame] | 325 | fodderModule = mod2 |
Johannes Gijsbers | c473c99 | 2004-08-18 12:40:31 +0000 | [diff] [blame] | 326 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 327 | def test_wrapped_decorator(self): |
Christian Heimes | 09aaa88 | 2008-02-23 15:01:06 +0000 | [diff] [blame] | 328 | self.assertSourceEqual(mod2.wrapped, 14, 17) |
Johannes Gijsbers | c473c99 | 2004-08-18 12:40:31 +0000 | [diff] [blame] | 329 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 330 | def test_replacing_decorator(self): |
| 331 | self.assertSourceEqual(mod2.gone, 9, 10) |
Tim Peters | e0b2d7a | 2001-09-22 06:10:55 +0000 | [diff] [blame] | 332 | |
Johannes Gijsbers | 1542f34 | 2004-12-12 16:46:28 +0000 | [diff] [blame] | 333 | class TestOneliners(GetSourceBase): |
Alexander Belopolsky | f546e70 | 2010-12-02 00:10:11 +0000 | [diff] [blame] | 334 | fodderModule = mod2 |
Johannes Gijsbers | 1542f34 | 2004-12-12 16:46:28 +0000 | [diff] [blame] | 335 | def test_oneline_lambda(self): |
| 336 | # Test inspect.getsource with a one-line lambda function. |
| 337 | self.assertSourceEqual(mod2.oll, 25, 25) |
Tim Peters | 5a9fb3c | 2005-01-07 16:01:32 +0000 | [diff] [blame] | 338 | |
Johannes Gijsbers | 1542f34 | 2004-12-12 16:46:28 +0000 | [diff] [blame] | 339 | def test_threeline_lambda(self): |
| 340 | # Test inspect.getsource with a three-line lambda function, |
| 341 | # where the second and third lines are _not_ indented. |
Tim Peters | 5a9fb3c | 2005-01-07 16:01:32 +0000 | [diff] [blame] | 342 | self.assertSourceEqual(mod2.tll, 28, 30) |
| 343 | |
Johannes Gijsbers | 1542f34 | 2004-12-12 16:46:28 +0000 | [diff] [blame] | 344 | def test_twoline_indented_lambda(self): |
| 345 | # Test inspect.getsource with a two-line lambda function, |
| 346 | # where the second line _is_ indented. |
| 347 | self.assertSourceEqual(mod2.tlli, 33, 34) |
Tim Peters | 5a9fb3c | 2005-01-07 16:01:32 +0000 | [diff] [blame] | 348 | |
Johannes Gijsbers | 1542f34 | 2004-12-12 16:46:28 +0000 | [diff] [blame] | 349 | def test_onelinefunc(self): |
| 350 | # Test inspect.getsource with a regular one-line function. |
| 351 | self.assertSourceEqual(mod2.onelinefunc, 37, 37) |
Tim Peters | 5a9fb3c | 2005-01-07 16:01:32 +0000 | [diff] [blame] | 352 | |
Johannes Gijsbers | 1542f34 | 2004-12-12 16:46:28 +0000 | [diff] [blame] | 353 | def test_manyargs(self): |
| 354 | # Test inspect.getsource with a regular function where |
| 355 | # the arguments are on two lines and _not_ indented and |
| 356 | # the body on the second line with the last arguments. |
| 357 | self.assertSourceEqual(mod2.manyargs, 40, 41) |
Tim Peters | 5a9fb3c | 2005-01-07 16:01:32 +0000 | [diff] [blame] | 358 | |
Johannes Gijsbers | 1542f34 | 2004-12-12 16:46:28 +0000 | [diff] [blame] | 359 | def test_twolinefunc(self): |
| 360 | # Test inspect.getsource with a regular function where |
| 361 | # the body is on two lines, following the argument list and |
| 362 | # continued on the next line by a \\. |
| 363 | self.assertSourceEqual(mod2.twolinefunc, 44, 45) |
Tim Peters | 5a9fb3c | 2005-01-07 16:01:32 +0000 | [diff] [blame] | 364 | |
Johannes Gijsbers | 1542f34 | 2004-12-12 16:46:28 +0000 | [diff] [blame] | 365 | def test_lambda_in_list(self): |
| 366 | # Test inspect.getsource with a one-line lambda function |
| 367 | # defined in a list, indented. |
| 368 | self.assertSourceEqual(mod2.a[1], 49, 49) |
Tim Peters | 5a9fb3c | 2005-01-07 16:01:32 +0000 | [diff] [blame] | 369 | |
Johannes Gijsbers | 1542f34 | 2004-12-12 16:46:28 +0000 | [diff] [blame] | 370 | def test_anonymous(self): |
| 371 | # Test inspect.getsource with a lambda function defined |
| 372 | # as argument to another function. |
| 373 | self.assertSourceEqual(mod2.anonymous, 55, 55) |
| 374 | |
Johannes Gijsbers | a5855d5 | 2005-03-12 16:37:11 +0000 | [diff] [blame] | 375 | class TestBuggyCases(GetSourceBase): |
Alexander Belopolsky | f546e70 | 2010-12-02 00:10:11 +0000 | [diff] [blame] | 376 | fodderModule = mod2 |
Johannes Gijsbers | a5855d5 | 2005-03-12 16:37:11 +0000 | [diff] [blame] | 377 | |
| 378 | def test_with_comment(self): |
| 379 | self.assertSourceEqual(mod2.with_comment, 58, 59) |
| 380 | |
| 381 | def test_multiline_sig(self): |
| 382 | self.assertSourceEqual(mod2.multiline_sig[0], 63, 64) |
| 383 | |
Armin Rigo | dd5c023 | 2005-09-25 11:45:45 +0000 | [diff] [blame] | 384 | def test_nested_class(self): |
| 385 | self.assertSourceEqual(mod2.func69().func71, 71, 72) |
| 386 | |
| 387 | def test_one_liner_followed_by_non_name(self): |
| 388 | self.assertSourceEqual(mod2.func77, 77, 77) |
| 389 | |
| 390 | def test_one_liner_dedent_non_name(self): |
| 391 | self.assertSourceEqual(mod2.cls82.func83, 83, 83) |
| 392 | |
| 393 | def test_with_comment_instead_of_docstring(self): |
| 394 | self.assertSourceEqual(mod2.func88, 88, 90) |
| 395 | |
Thomas Wouters | 00ee7ba | 2006-08-21 19:07:27 +0000 | [diff] [blame] | 396 | def test_method_in_dynamic_class(self): |
| 397 | self.assertSourceEqual(mod2.method_in_dynamic_class, 95, 97) |
| 398 | |
R. David Murray | b565577 | 2009-05-14 16:17:50 +0000 | [diff] [blame] | 399 | @unittest.skipIf( |
| 400 | not hasattr(unicodedata, '__file__') or |
| 401 | unicodedata.__file__[-4:] in (".pyc", ".pyo"), |
| 402 | "unicodedata is not an external binary module") |
R. David Murray | 74b8924 | 2009-05-13 17:33:03 +0000 | [diff] [blame] | 403 | def test_findsource_binary(self): |
R. David Murray | b565577 | 2009-05-14 16:17:50 +0000 | [diff] [blame] | 404 | self.assertRaises(IOError, inspect.getsource, unicodedata) |
| 405 | self.assertRaises(IOError, inspect.findsource, unicodedata) |
R. David Murray | 74b8924 | 2009-05-13 17:33:03 +0000 | [diff] [blame] | 406 | |
R. David Murray | a1b3740 | 2010-06-17 02:04:29 +0000 | [diff] [blame] | 407 | def test_findsource_code_in_linecache(self): |
| 408 | lines = ["x=1"] |
| 409 | co = compile(lines[0], "_dynamically_created_file", "exec") |
| 410 | self.assertRaises(IOError, inspect.findsource, co) |
| 411 | self.assertRaises(IOError, inspect.getsource, co) |
| 412 | linecache.cache[co.co_filename] = (1, None, lines, co.co_filename) |
Antoine Pitrou | 5d62a61 | 2012-07-08 13:48:46 +0200 | [diff] [blame] | 413 | try: |
| 414 | self.assertEqual(inspect.findsource(co), (lines,0)) |
| 415 | self.assertEqual(inspect.getsource(co), lines[0]) |
| 416 | finally: |
| 417 | del linecache.cache[co.co_filename] |
R. David Murray | a1b3740 | 2010-06-17 02:04:29 +0000 | [diff] [blame] | 418 | |
Ezio Melotti | 1b14592 | 2013-03-30 05:17:24 +0200 | [diff] [blame^] | 419 | def test_findsource_without_filename(self): |
| 420 | for fname in ['', '<string>']: |
| 421 | co = compile('x=1', fname, "exec") |
| 422 | self.assertRaises(IOError, inspect.findsource, co) |
| 423 | self.assertRaises(IOError, inspect.getsource, co) |
| 424 | |
Alexander Belopolsky | f546e70 | 2010-12-02 00:10:11 +0000 | [diff] [blame] | 425 | class TestNoEOL(GetSourceBase): |
| 426 | def __init__(self, *args, **kwargs): |
| 427 | self.tempdir = TESTFN + '_dir' |
| 428 | os.mkdir(self.tempdir) |
| 429 | with open(os.path.join(self.tempdir, |
| 430 | 'inspect_fodder3%spy' % os.extsep), 'w') as f: |
| 431 | f.write("class X:\n pass # No EOL") |
| 432 | with DirsOnSysPath(self.tempdir): |
| 433 | import inspect_fodder3 as mod3 |
| 434 | self.fodderModule = mod3 |
| 435 | GetSourceBase.__init__(self, *args, **kwargs) |
| 436 | |
| 437 | def tearDown(self): |
| 438 | shutil.rmtree(self.tempdir) |
| 439 | |
| 440 | def test_class(self): |
| 441 | self.assertSourceEqual(self.fodderModule.X, 1, 2) |
| 442 | |
Antoine Pitrou | 86a8a9a | 2011-12-21 09:57:40 +0100 | [diff] [blame] | 443 | |
| 444 | class _BrokenDataDescriptor(object): |
| 445 | """ |
| 446 | A broken data descriptor. See bug #1785. |
| 447 | """ |
| 448 | def __get__(*args): |
| 449 | raise AssertionError("should not __get__ data descriptors") |
| 450 | |
| 451 | def __set__(*args): |
| 452 | raise RuntimeError |
| 453 | |
| 454 | def __getattr__(*args): |
| 455 | raise AssertionError("should not __getattr__ data descriptors") |
| 456 | |
| 457 | |
| 458 | class _BrokenMethodDescriptor(object): |
| 459 | """ |
| 460 | A broken method descriptor. See bug #1785. |
| 461 | """ |
| 462 | def __get__(*args): |
| 463 | raise AssertionError("should not __get__ method descriptors") |
| 464 | |
| 465 | def __getattr__(*args): |
| 466 | raise AssertionError("should not __getattr__ method descriptors") |
| 467 | |
| 468 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 469 | # Helper for testing classify_class_attrs. |
Tim Peters | 13b49d3 | 2001-09-23 02:00:29 +0000 | [diff] [blame] | 470 | def attrs_wo_objs(cls): |
| 471 | return [t[:3] for t in inspect.classify_class_attrs(cls)] |
| 472 | |
Antoine Pitrou | 86a8a9a | 2011-12-21 09:57:40 +0100 | [diff] [blame] | 473 | |
Tim Peters | 5a9fb3c | 2005-01-07 16:01:32 +0000 | [diff] [blame] | 474 | class TestClassesAndFunctions(unittest.TestCase): |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 475 | def test_newstyle_mro(self): |
| 476 | # The same w/ new-class MRO. |
| 477 | class A(object): pass |
| 478 | class B(A): pass |
| 479 | class C(A): pass |
| 480 | class D(B, C): pass |
Tim Peters | 13b49d3 | 2001-09-23 02:00:29 +0000 | [diff] [blame] | 481 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 482 | expected = (D, B, C, A, object) |
| 483 | got = inspect.getmro(D) |
| 484 | self.assertEqual(expected, got) |
Tim Peters | 13b49d3 | 2001-09-23 02:00:29 +0000 | [diff] [blame] | 485 | |
Christian Heimes | 3795b53 | 2007-11-08 13:48:53 +0000 | [diff] [blame] | 486 | def assertArgSpecEquals(self, routine, args_e, varargs_e=None, |
| 487 | varkw_e=None, defaults_e=None, formatted=None): |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 488 | args, varargs, varkw, defaults = inspect.getargspec(routine) |
| 489 | self.assertEqual(args, args_e) |
| 490 | self.assertEqual(varargs, varargs_e) |
| 491 | self.assertEqual(varkw, varkw_e) |
| 492 | self.assertEqual(defaults, defaults_e) |
| 493 | if formatted is not None: |
| 494 | self.assertEqual(inspect.formatargspec(args, varargs, varkw, defaults), |
| 495 | formatted) |
Tim Peters | 13b49d3 | 2001-09-23 02:00:29 +0000 | [diff] [blame] | 496 | |
Christian Heimes | 3795b53 | 2007-11-08 13:48:53 +0000 | [diff] [blame] | 497 | def assertFullArgSpecEquals(self, routine, args_e, varargs_e=None, |
| 498 | varkw_e=None, defaults_e=None, |
| 499 | kwonlyargs_e=[], kwonlydefaults_e=None, |
| 500 | ann_e={}, formatted=None): |
| 501 | args, varargs, varkw, defaults, kwonlyargs, kwonlydefaults, ann = \ |
| 502 | inspect.getfullargspec(routine) |
| 503 | self.assertEqual(args, args_e) |
| 504 | self.assertEqual(varargs, varargs_e) |
| 505 | self.assertEqual(varkw, varkw_e) |
| 506 | self.assertEqual(defaults, defaults_e) |
| 507 | self.assertEqual(kwonlyargs, kwonlyargs_e) |
| 508 | self.assertEqual(kwonlydefaults, kwonlydefaults_e) |
| 509 | self.assertEqual(ann, ann_e) |
| 510 | if formatted is not None: |
| 511 | self.assertEqual(inspect.formatargspec(args, varargs, varkw, defaults, |
| 512 | kwonlyargs, kwonlydefaults, ann), |
| 513 | formatted) |
| 514 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 515 | def test_getargspec(self): |
Christian Heimes | 3795b53 | 2007-11-08 13:48:53 +0000 | [diff] [blame] | 516 | self.assertArgSpecEquals(mod.eggs, ['x', 'y'], formatted='(x, y)') |
Tim Peters | 13b49d3 | 2001-09-23 02:00:29 +0000 | [diff] [blame] | 517 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 518 | self.assertArgSpecEquals(mod.spam, |
Guido van Rossum | 1bc535d | 2007-05-15 18:46:22 +0000 | [diff] [blame] | 519 | ['a', 'b', 'c', 'd', 'e', 'f'], |
| 520 | 'g', 'h', (3, 4, 5), |
| 521 | '(a, b, c, d=3, e=4, f=5, *g, **h)') |
Tim Peters | 13b49d3 | 2001-09-23 02:00:29 +0000 | [diff] [blame] | 522 | |
Christian Heimes | 3795b53 | 2007-11-08 13:48:53 +0000 | [diff] [blame] | 523 | self.assertRaises(ValueError, self.assertArgSpecEquals, |
| 524 | mod2.keyworded, []) |
| 525 | |
| 526 | self.assertRaises(ValueError, self.assertArgSpecEquals, |
| 527 | mod2.annotated, []) |
Benjamin Peterson | 9953a8d | 2009-01-17 04:15:01 +0000 | [diff] [blame] | 528 | self.assertRaises(ValueError, self.assertArgSpecEquals, |
| 529 | mod2.keyword_only_arg, []) |
| 530 | |
Christian Heimes | 3795b53 | 2007-11-08 13:48:53 +0000 | [diff] [blame] | 531 | |
| 532 | def test_getfullargspec(self): |
| 533 | self.assertFullArgSpecEquals(mod2.keyworded, [], varargs_e='arg1', |
| 534 | kwonlyargs_e=['arg2'], |
| 535 | kwonlydefaults_e={'arg2':1}, |
| 536 | formatted='(*arg1, arg2=1)') |
| 537 | |
| 538 | self.assertFullArgSpecEquals(mod2.annotated, ['arg1'], |
Christian Heimes | c9543e4 | 2007-11-28 08:28:28 +0000 | [diff] [blame] | 539 | ann_e={'arg1' : list}, |
Christian Heimes | 3795b53 | 2007-11-08 13:48:53 +0000 | [diff] [blame] | 540 | formatted='(arg1: list)') |
Benjamin Peterson | 9953a8d | 2009-01-17 04:15:01 +0000 | [diff] [blame] | 541 | self.assertFullArgSpecEquals(mod2.keyword_only_arg, [], |
| 542 | kwonlyargs_e=['arg'], |
| 543 | formatted='(*, arg)') |
| 544 | |
Christian Heimes | 3795b53 | 2007-11-08 13:48:53 +0000 | [diff] [blame] | 545 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 546 | def test_getargspec_method(self): |
| 547 | class A(object): |
| 548 | def m(self): |
| 549 | pass |
| 550 | self.assertArgSpecEquals(A.m, ['self']) |
Tim Peters | 13b49d3 | 2001-09-23 02:00:29 +0000 | [diff] [blame] | 551 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 552 | def test_classify_newstyle(self): |
| 553 | class A(object): |
Tim Peters | 13b49d3 | 2001-09-23 02:00:29 +0000 | [diff] [blame] | 554 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 555 | def s(): pass |
| 556 | s = staticmethod(s) |
Tim Peters | 13b49d3 | 2001-09-23 02:00:29 +0000 | [diff] [blame] | 557 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 558 | def c(cls): pass |
| 559 | c = classmethod(c) |
Tim Peters | 13b49d3 | 2001-09-23 02:00:29 +0000 | [diff] [blame] | 560 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 561 | def getp(self): pass |
| 562 | p = property(getp) |
Tim Peters | 13b49d3 | 2001-09-23 02:00:29 +0000 | [diff] [blame] | 563 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 564 | def m(self): pass |
Tim Peters | 13b49d3 | 2001-09-23 02:00:29 +0000 | [diff] [blame] | 565 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 566 | def m1(self): pass |
Tim Peters | 13b49d3 | 2001-09-23 02:00:29 +0000 | [diff] [blame] | 567 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 568 | datablob = '1' |
Tim Peters | 13b49d3 | 2001-09-23 02:00:29 +0000 | [diff] [blame] | 569 | |
Antoine Pitrou | 86a8a9a | 2011-12-21 09:57:40 +0100 | [diff] [blame] | 570 | dd = _BrokenDataDescriptor() |
| 571 | md = _BrokenMethodDescriptor() |
| 572 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 573 | attrs = attrs_wo_objs(A) |
Benjamin Peterson | 577473f | 2010-01-19 00:09:57 +0000 | [diff] [blame] | 574 | self.assertIn(('s', 'static method', A), attrs, 'missing static method') |
| 575 | self.assertIn(('c', 'class method', A), attrs, 'missing class method') |
| 576 | self.assertIn(('p', 'property', A), attrs, 'missing property') |
Ezio Melotti | b58e0bd | 2010-01-23 15:40:09 +0000 | [diff] [blame] | 577 | self.assertIn(('m', 'method', A), attrs, |
| 578 | 'missing plain method: %r' % attrs) |
Benjamin Peterson | 577473f | 2010-01-19 00:09:57 +0000 | [diff] [blame] | 579 | self.assertIn(('m1', 'method', A), attrs, 'missing plain method') |
| 580 | self.assertIn(('datablob', 'data', A), attrs, 'missing data') |
Antoine Pitrou | 86a8a9a | 2011-12-21 09:57:40 +0100 | [diff] [blame] | 581 | self.assertIn(('md', 'method', A), attrs, 'missing method descriptor') |
| 582 | self.assertIn(('dd', 'data', A), attrs, 'missing data descriptor') |
Tim Peters | 13b49d3 | 2001-09-23 02:00:29 +0000 | [diff] [blame] | 583 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 584 | class B(A): |
Tim Peters | 13b49d3 | 2001-09-23 02:00:29 +0000 | [diff] [blame] | 585 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 586 | def m(self): pass |
Tim Peters | 13b49d3 | 2001-09-23 02:00:29 +0000 | [diff] [blame] | 587 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 588 | attrs = attrs_wo_objs(B) |
Benjamin Peterson | 577473f | 2010-01-19 00:09:57 +0000 | [diff] [blame] | 589 | self.assertIn(('s', 'static method', A), attrs, 'missing static method') |
| 590 | self.assertIn(('c', 'class method', A), attrs, 'missing class method') |
| 591 | self.assertIn(('p', 'property', A), attrs, 'missing property') |
| 592 | self.assertIn(('m', 'method', B), attrs, 'missing plain method') |
| 593 | self.assertIn(('m1', 'method', A), attrs, 'missing plain method') |
| 594 | self.assertIn(('datablob', 'data', A), attrs, 'missing data') |
Antoine Pitrou | 86a8a9a | 2011-12-21 09:57:40 +0100 | [diff] [blame] | 595 | self.assertIn(('md', 'method', A), attrs, 'missing method descriptor') |
| 596 | self.assertIn(('dd', 'data', A), attrs, 'missing data descriptor') |
Tim Peters | 13b49d3 | 2001-09-23 02:00:29 +0000 | [diff] [blame] | 597 | |
| 598 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 599 | class C(A): |
Tim Peters | 13b49d3 | 2001-09-23 02:00:29 +0000 | [diff] [blame] | 600 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 601 | def m(self): pass |
| 602 | def c(self): pass |
Tim Peters | 13b49d3 | 2001-09-23 02:00:29 +0000 | [diff] [blame] | 603 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 604 | attrs = attrs_wo_objs(C) |
Benjamin Peterson | 577473f | 2010-01-19 00:09:57 +0000 | [diff] [blame] | 605 | self.assertIn(('s', 'static method', A), attrs, 'missing static method') |
| 606 | self.assertIn(('c', 'method', C), attrs, 'missing plain method') |
| 607 | self.assertIn(('p', 'property', A), attrs, 'missing property') |
| 608 | self.assertIn(('m', 'method', C), attrs, 'missing plain method') |
| 609 | self.assertIn(('m1', 'method', A), attrs, 'missing plain method') |
| 610 | self.assertIn(('datablob', 'data', A), attrs, 'missing data') |
Antoine Pitrou | 86a8a9a | 2011-12-21 09:57:40 +0100 | [diff] [blame] | 611 | self.assertIn(('md', 'method', A), attrs, 'missing method descriptor') |
| 612 | self.assertIn(('dd', 'data', A), attrs, 'missing data descriptor') |
Tim Peters | 13b49d3 | 2001-09-23 02:00:29 +0000 | [diff] [blame] | 613 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 614 | class D(B, C): |
Tim Peters | 13b49d3 | 2001-09-23 02:00:29 +0000 | [diff] [blame] | 615 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 616 | def m1(self): pass |
Tim Peters | 13b49d3 | 2001-09-23 02:00:29 +0000 | [diff] [blame] | 617 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 618 | attrs = attrs_wo_objs(D) |
Benjamin Peterson | 577473f | 2010-01-19 00:09:57 +0000 | [diff] [blame] | 619 | self.assertIn(('s', 'static method', A), attrs, 'missing static method') |
| 620 | self.assertIn(('c', 'method', C), attrs, 'missing plain method') |
| 621 | self.assertIn(('p', 'property', A), attrs, 'missing property') |
| 622 | self.assertIn(('m', 'method', B), attrs, 'missing plain method') |
| 623 | self.assertIn(('m1', 'method', D), attrs, 'missing plain method') |
| 624 | self.assertIn(('datablob', 'data', A), attrs, 'missing data') |
Antoine Pitrou | 86a8a9a | 2011-12-21 09:57:40 +0100 | [diff] [blame] | 625 | self.assertIn(('md', 'method', A), attrs, 'missing method descriptor') |
| 626 | self.assertIn(('dd', 'data', A), attrs, 'missing data descriptor') |
| 627 | |
| 628 | def test_classify_builtin_types(self): |
| 629 | # Simple sanity check that all built-in types can have their |
| 630 | # attributes classified. |
| 631 | for name in dir(__builtins__): |
| 632 | builtin = getattr(__builtins__, name) |
| 633 | if isinstance(builtin, type): |
| 634 | inspect.classify_class_attrs(builtin) |
| 635 | |
| 636 | def test_getmembers_descriptors(self): |
| 637 | class A(object): |
| 638 | dd = _BrokenDataDescriptor() |
| 639 | md = _BrokenMethodDescriptor() |
| 640 | |
| 641 | def pred_wrapper(pred): |
| 642 | # A quick'n'dirty way to discard standard attributes of new-style |
| 643 | # classes. |
| 644 | class Empty(object): |
| 645 | pass |
| 646 | def wrapped(x): |
| 647 | if '__name__' in dir(x) and hasattr(Empty, x.__name__): |
| 648 | return False |
| 649 | return pred(x) |
| 650 | return wrapped |
| 651 | |
| 652 | ismethoddescriptor = pred_wrapper(inspect.ismethoddescriptor) |
| 653 | isdatadescriptor = pred_wrapper(inspect.isdatadescriptor) |
| 654 | |
| 655 | self.assertEqual(inspect.getmembers(A, ismethoddescriptor), |
| 656 | [('md', A.__dict__['md'])]) |
| 657 | self.assertEqual(inspect.getmembers(A, isdatadescriptor), |
| 658 | [('dd', A.__dict__['dd'])]) |
| 659 | |
| 660 | class B(A): |
| 661 | pass |
| 662 | |
| 663 | self.assertEqual(inspect.getmembers(B, ismethoddescriptor), |
| 664 | [('md', A.__dict__['md'])]) |
| 665 | self.assertEqual(inspect.getmembers(B, isdatadescriptor), |
| 666 | [('dd', A.__dict__['dd'])]) |
| 667 | |
Antoine Pitrou | 0c60381 | 2012-01-18 17:40:18 +0100 | [diff] [blame] | 668 | def test_getmembers_method(self): |
| 669 | class B: |
| 670 | def f(self): |
| 671 | pass |
| 672 | |
| 673 | self.assertIn(('f', B.f), inspect.getmembers(B)) |
| 674 | self.assertNotIn(('f', B.f), inspect.getmembers(B, inspect.ismethod)) |
| 675 | b = B() |
| 676 | self.assertIn(('f', b.f), inspect.getmembers(b)) |
| 677 | self.assertIn(('f', b.f), inspect.getmembers(b, inspect.ismethod)) |
| 678 | |
Jeremy Hylton | c4bf5ed | 2003-06-27 18:43:12 +0000 | [diff] [blame] | 679 | |
Nick Coghlan | 2f92e54 | 2012-06-23 19:39:55 +1000 | [diff] [blame] | 680 | _global_ref = object() |
| 681 | class TestGetClosureVars(unittest.TestCase): |
| 682 | |
| 683 | def test_name_resolution(self): |
| 684 | # Basic test of the 4 different resolution mechanisms |
| 685 | def f(nonlocal_ref): |
| 686 | def g(local_ref): |
| 687 | print(local_ref, nonlocal_ref, _global_ref, unbound_ref) |
| 688 | return g |
| 689 | _arg = object() |
| 690 | nonlocal_vars = {"nonlocal_ref": _arg} |
| 691 | global_vars = {"_global_ref": _global_ref} |
| 692 | builtin_vars = {"print": print} |
| 693 | unbound_names = {"unbound_ref"} |
| 694 | expected = inspect.ClosureVars(nonlocal_vars, global_vars, |
| 695 | builtin_vars, unbound_names) |
| 696 | self.assertEqual(inspect.getclosurevars(f(_arg)), expected) |
| 697 | |
| 698 | def test_generator_closure(self): |
| 699 | def f(nonlocal_ref): |
| 700 | def g(local_ref): |
| 701 | print(local_ref, nonlocal_ref, _global_ref, unbound_ref) |
| 702 | yield |
| 703 | return g |
| 704 | _arg = object() |
| 705 | nonlocal_vars = {"nonlocal_ref": _arg} |
| 706 | global_vars = {"_global_ref": _global_ref} |
| 707 | builtin_vars = {"print": print} |
| 708 | unbound_names = {"unbound_ref"} |
| 709 | expected = inspect.ClosureVars(nonlocal_vars, global_vars, |
| 710 | builtin_vars, unbound_names) |
| 711 | self.assertEqual(inspect.getclosurevars(f(_arg)), expected) |
| 712 | |
| 713 | def test_method_closure(self): |
| 714 | class C: |
| 715 | def f(self, nonlocal_ref): |
| 716 | def g(local_ref): |
| 717 | print(local_ref, nonlocal_ref, _global_ref, unbound_ref) |
| 718 | return g |
| 719 | _arg = object() |
| 720 | nonlocal_vars = {"nonlocal_ref": _arg} |
| 721 | global_vars = {"_global_ref": _global_ref} |
| 722 | builtin_vars = {"print": print} |
| 723 | unbound_names = {"unbound_ref"} |
| 724 | expected = inspect.ClosureVars(nonlocal_vars, global_vars, |
| 725 | builtin_vars, unbound_names) |
| 726 | self.assertEqual(inspect.getclosurevars(C().f(_arg)), expected) |
| 727 | |
| 728 | def test_nonlocal_vars(self): |
| 729 | # More complex tests of nonlocal resolution |
| 730 | def _nonlocal_vars(f): |
| 731 | return inspect.getclosurevars(f).nonlocals |
| 732 | |
| 733 | def make_adder(x): |
| 734 | def add(y): |
| 735 | return x + y |
| 736 | return add |
| 737 | |
| 738 | def curry(func, arg1): |
| 739 | return lambda arg2: func(arg1, arg2) |
| 740 | |
| 741 | def less_than(a, b): |
| 742 | return a < b |
| 743 | |
| 744 | # The infamous Y combinator. |
| 745 | def Y(le): |
| 746 | def g(f): |
| 747 | return le(lambda x: f(f)(x)) |
| 748 | Y.g_ref = g |
| 749 | return g(g) |
| 750 | |
| 751 | def check_y_combinator(func): |
| 752 | self.assertEqual(_nonlocal_vars(func), {'f': Y.g_ref}) |
| 753 | |
| 754 | inc = make_adder(1) |
| 755 | add_two = make_adder(2) |
| 756 | greater_than_five = curry(less_than, 5) |
| 757 | |
| 758 | self.assertEqual(_nonlocal_vars(inc), {'x': 1}) |
| 759 | self.assertEqual(_nonlocal_vars(add_two), {'x': 2}) |
| 760 | self.assertEqual(_nonlocal_vars(greater_than_five), |
| 761 | {'arg1': 5, 'func': less_than}) |
| 762 | self.assertEqual(_nonlocal_vars((lambda x: lambda y: x + y)(3)), |
| 763 | {'x': 3}) |
| 764 | Y(check_y_combinator) |
| 765 | |
| 766 | def test_getclosurevars_empty(self): |
| 767 | def foo(): pass |
| 768 | _empty = inspect.ClosureVars({}, {}, {}, set()) |
| 769 | self.assertEqual(inspect.getclosurevars(lambda: True), _empty) |
| 770 | self.assertEqual(inspect.getclosurevars(foo), _empty) |
| 771 | |
| 772 | def test_getclosurevars_error(self): |
| 773 | class T: pass |
| 774 | self.assertRaises(TypeError, inspect.getclosurevars, 1) |
| 775 | self.assertRaises(TypeError, inspect.getclosurevars, list) |
| 776 | self.assertRaises(TypeError, inspect.getclosurevars, {}) |
| 777 | |
Nick Coghlan | 6c6e254 | 2012-06-23 20:07:39 +1000 | [diff] [blame] | 778 | def _private_globals(self): |
| 779 | code = """def f(): print(path)""" |
| 780 | ns = {} |
| 781 | exec(code, ns) |
| 782 | return ns["f"], ns |
| 783 | |
| 784 | def test_builtins_fallback(self): |
| 785 | f, ns = self._private_globals() |
| 786 | ns.pop("__builtins__", None) |
| 787 | expected = inspect.ClosureVars({}, {}, {"print":print}, {"path"}) |
| 788 | self.assertEqual(inspect.getclosurevars(f), expected) |
| 789 | |
| 790 | def test_builtins_as_dict(self): |
| 791 | f, ns = self._private_globals() |
| 792 | ns["__builtins__"] = {"path":1} |
| 793 | expected = inspect.ClosureVars({}, {}, {"path":1}, {"print"}) |
| 794 | self.assertEqual(inspect.getclosurevars(f), expected) |
| 795 | |
| 796 | def test_builtins_as_module(self): |
| 797 | f, ns = self._private_globals() |
| 798 | ns["__builtins__"] = os |
| 799 | expected = inspect.ClosureVars({}, {}, {"path":os.path}, {"print"}) |
| 800 | self.assertEqual(inspect.getclosurevars(f), expected) |
| 801 | |
Nick Coghlan | 2f92e54 | 2012-06-23 19:39:55 +1000 | [diff] [blame] | 802 | |
Benjamin Peterson | 25cd7eb | 2010-03-30 18:42:32 +0000 | [diff] [blame] | 803 | class TestGetcallargsFunctions(unittest.TestCase): |
| 804 | |
| 805 | def assertEqualCallArgs(self, func, call_params_string, locs=None): |
| 806 | locs = dict(locs or {}, func=func) |
| 807 | r1 = eval('func(%s)' % call_params_string, None, locs) |
| 808 | r2 = eval('inspect.getcallargs(func, %s)' % call_params_string, None, |
| 809 | locs) |
| 810 | self.assertEqual(r1, r2) |
| 811 | |
| 812 | def assertEqualException(self, func, call_param_string, locs=None): |
| 813 | locs = dict(locs or {}, func=func) |
| 814 | try: |
| 815 | eval('func(%s)' % call_param_string, None, locs) |
| 816 | except Exception as e: |
| 817 | ex1 = e |
| 818 | else: |
| 819 | self.fail('Exception not raised') |
| 820 | try: |
| 821 | eval('inspect.getcallargs(func, %s)' % call_param_string, None, |
| 822 | locs) |
| 823 | except Exception as e: |
| 824 | ex2 = e |
| 825 | else: |
| 826 | self.fail('Exception not raised') |
| 827 | self.assertIs(type(ex1), type(ex2)) |
| 828 | self.assertEqual(str(ex1), str(ex2)) |
| 829 | del ex1, ex2 |
| 830 | |
| 831 | def makeCallable(self, signature): |
| 832 | """Create a function that returns its locals()""" |
| 833 | code = "lambda %s: locals()" |
| 834 | return eval(code % signature) |
| 835 | |
| 836 | def test_plain(self): |
| 837 | f = self.makeCallable('a, b=1') |
| 838 | self.assertEqualCallArgs(f, '2') |
| 839 | self.assertEqualCallArgs(f, '2, 3') |
| 840 | self.assertEqualCallArgs(f, 'a=2') |
| 841 | self.assertEqualCallArgs(f, 'b=3, a=2') |
| 842 | self.assertEqualCallArgs(f, '2, b=3') |
| 843 | # expand *iterable / **mapping |
| 844 | self.assertEqualCallArgs(f, '*(2,)') |
| 845 | self.assertEqualCallArgs(f, '*[2]') |
| 846 | self.assertEqualCallArgs(f, '*(2, 3)') |
| 847 | self.assertEqualCallArgs(f, '*[2, 3]') |
| 848 | self.assertEqualCallArgs(f, '**{"a":2}') |
| 849 | self.assertEqualCallArgs(f, 'b=3, **{"a":2}') |
| 850 | self.assertEqualCallArgs(f, '2, **{"b":3}') |
| 851 | self.assertEqualCallArgs(f, '**{"b":3, "a":2}') |
| 852 | # expand UserList / UserDict |
| 853 | self.assertEqualCallArgs(f, '*collections.UserList([2])') |
| 854 | self.assertEqualCallArgs(f, '*collections.UserList([2, 3])') |
| 855 | self.assertEqualCallArgs(f, '**collections.UserDict(a=2)') |
| 856 | self.assertEqualCallArgs(f, '2, **collections.UserDict(b=3)') |
| 857 | self.assertEqualCallArgs(f, 'b=2, **collections.UserDict(a=3)') |
| 858 | |
| 859 | def test_varargs(self): |
| 860 | f = self.makeCallable('a, b=1, *c') |
| 861 | self.assertEqualCallArgs(f, '2') |
| 862 | self.assertEqualCallArgs(f, '2, 3') |
| 863 | self.assertEqualCallArgs(f, '2, 3, 4') |
| 864 | self.assertEqualCallArgs(f, '*(2,3,4)') |
| 865 | self.assertEqualCallArgs(f, '2, *[3,4]') |
| 866 | self.assertEqualCallArgs(f, '2, 3, *collections.UserList([4])') |
| 867 | |
| 868 | def test_varkw(self): |
| 869 | f = self.makeCallable('a, b=1, **c') |
| 870 | self.assertEqualCallArgs(f, 'a=2') |
| 871 | self.assertEqualCallArgs(f, '2, b=3, c=4') |
| 872 | self.assertEqualCallArgs(f, 'b=3, a=2, c=4') |
| 873 | self.assertEqualCallArgs(f, 'c=4, **{"a":2, "b":3}') |
| 874 | self.assertEqualCallArgs(f, '2, c=4, **{"b":3}') |
| 875 | self.assertEqualCallArgs(f, 'b=2, **{"a":3, "c":4}') |
| 876 | self.assertEqualCallArgs(f, '**collections.UserDict(a=2, b=3, c=4)') |
| 877 | self.assertEqualCallArgs(f, '2, c=4, **collections.UserDict(b=3)') |
| 878 | self.assertEqualCallArgs(f, 'b=2, **collections.UserDict(a=3, c=4)') |
| 879 | |
Benjamin Peterson | 6a2638b | 2011-03-28 17:32:31 -0500 | [diff] [blame] | 880 | def test_varkw_only(self): |
| 881 | # issue11256: |
| 882 | f = self.makeCallable('**c') |
| 883 | self.assertEqualCallArgs(f, '') |
| 884 | self.assertEqualCallArgs(f, 'a=1') |
| 885 | self.assertEqualCallArgs(f, 'a=1, b=2') |
| 886 | self.assertEqualCallArgs(f, 'c=3, **{"a": 1, "b": 2}') |
| 887 | self.assertEqualCallArgs(f, '**collections.UserDict(a=1, b=2)') |
| 888 | self.assertEqualCallArgs(f, 'c=3, **collections.UserDict(a=1, b=2)') |
| 889 | |
Benjamin Peterson | 25cd7eb | 2010-03-30 18:42:32 +0000 | [diff] [blame] | 890 | def test_keyword_only(self): |
| 891 | f = self.makeCallable('a=3, *, c, d=2') |
| 892 | self.assertEqualCallArgs(f, 'c=3') |
| 893 | self.assertEqualCallArgs(f, 'c=3, a=3') |
| 894 | self.assertEqualCallArgs(f, 'a=2, c=4') |
| 895 | self.assertEqualCallArgs(f, '4, c=4') |
| 896 | self.assertEqualException(f, '') |
| 897 | self.assertEqualException(f, '3') |
| 898 | self.assertEqualException(f, 'a=3') |
| 899 | self.assertEqualException(f, 'd=4') |
| 900 | |
Benjamin Peterson | 6a2638b | 2011-03-28 17:32:31 -0500 | [diff] [blame] | 901 | f = self.makeCallable('*, c, d=2') |
| 902 | self.assertEqualCallArgs(f, 'c=3') |
| 903 | self.assertEqualCallArgs(f, 'c=3, d=4') |
| 904 | self.assertEqualCallArgs(f, 'd=4, c=3') |
| 905 | |
Benjamin Peterson | 25cd7eb | 2010-03-30 18:42:32 +0000 | [diff] [blame] | 906 | def test_multiple_features(self): |
| 907 | f = self.makeCallable('a, b=2, *f, **g') |
| 908 | self.assertEqualCallArgs(f, '2, 3, 7') |
| 909 | self.assertEqualCallArgs(f, '2, 3, x=8') |
| 910 | self.assertEqualCallArgs(f, '2, 3, x=8, *[(4,[5,6]), 7]') |
| 911 | self.assertEqualCallArgs(f, '2, x=8, *[3, (4,[5,6]), 7], y=9') |
| 912 | self.assertEqualCallArgs(f, 'x=8, *[2, 3, (4,[5,6])], y=9') |
| 913 | self.assertEqualCallArgs(f, 'x=8, *collections.UserList(' |
| 914 | '[2, 3, (4,[5,6])]), **{"y":9, "z":10}') |
| 915 | self.assertEqualCallArgs(f, '2, x=8, *collections.UserList([3, ' |
| 916 | '(4,[5,6])]), **collections.UserDict(' |
| 917 | 'y=9, z=10)') |
| 918 | |
Benjamin Peterson | 6a2638b | 2011-03-28 17:32:31 -0500 | [diff] [blame] | 919 | f = self.makeCallable('a, b=2, *f, x, y=99, **g') |
| 920 | self.assertEqualCallArgs(f, '2, 3, x=8') |
| 921 | self.assertEqualCallArgs(f, '2, 3, x=8, *[(4,[5,6]), 7]') |
| 922 | self.assertEqualCallArgs(f, '2, x=8, *[3, (4,[5,6]), 7], y=9, z=10') |
| 923 | self.assertEqualCallArgs(f, 'x=8, *[2, 3, (4,[5,6])], y=9, z=10') |
| 924 | self.assertEqualCallArgs(f, 'x=8, *collections.UserList(' |
| 925 | '[2, 3, (4,[5,6])]), q=0, **{"y":9, "z":10}') |
| 926 | self.assertEqualCallArgs(f, '2, x=8, *collections.UserList([3, ' |
| 927 | '(4,[5,6])]), q=0, **collections.UserDict(' |
| 928 | 'y=9, z=10)') |
| 929 | |
Benjamin Peterson | 25cd7eb | 2010-03-30 18:42:32 +0000 | [diff] [blame] | 930 | def test_errors(self): |
| 931 | f0 = self.makeCallable('') |
| 932 | f1 = self.makeCallable('a, b') |
| 933 | f2 = self.makeCallable('a, b=1') |
| 934 | # f0 takes no arguments |
| 935 | self.assertEqualException(f0, '1') |
| 936 | self.assertEqualException(f0, 'x=1') |
| 937 | self.assertEqualException(f0, '1,x=1') |
| 938 | # f1 takes exactly 2 arguments |
| 939 | self.assertEqualException(f1, '') |
| 940 | self.assertEqualException(f1, '1') |
| 941 | self.assertEqualException(f1, 'a=2') |
| 942 | self.assertEqualException(f1, 'b=3') |
| 943 | # f2 takes at least 1 argument |
| 944 | self.assertEqualException(f2, '') |
| 945 | self.assertEqualException(f2, 'b=3') |
| 946 | for f in f1, f2: |
| 947 | # f1/f2 takes exactly/at most 2 arguments |
| 948 | self.assertEqualException(f, '2, 3, 4') |
| 949 | self.assertEqualException(f, '1, 2, 3, a=1') |
| 950 | self.assertEqualException(f, '2, 3, 4, c=5') |
Georg Brandl | 178e5ea | 2012-02-21 00:32:36 +0100 | [diff] [blame] | 951 | # XXX: success of this one depends on dict order |
| 952 | ## self.assertEqualException(f, '2, 3, 4, a=1, c=5') |
Benjamin Peterson | 25cd7eb | 2010-03-30 18:42:32 +0000 | [diff] [blame] | 953 | # f got an unexpected keyword argument |
| 954 | self.assertEqualException(f, 'c=2') |
| 955 | self.assertEqualException(f, '2, c=3') |
| 956 | self.assertEqualException(f, '2, 3, c=4') |
| 957 | self.assertEqualException(f, '2, c=4, b=3') |
| 958 | self.assertEqualException(f, '**{u"\u03c0\u03b9": 4}') |
| 959 | # f got multiple values for keyword argument |
| 960 | self.assertEqualException(f, '1, a=2') |
| 961 | self.assertEqualException(f, '1, **{"a":2}') |
| 962 | self.assertEqualException(f, '1, 2, b=3') |
| 963 | # XXX: Python inconsistency |
| 964 | # - for functions and bound methods: unexpected keyword 'c' |
| 965 | # - for unbound methods: multiple values for keyword 'a' |
| 966 | #self.assertEqualException(f, '1, c=3, a=2') |
Benjamin Peterson | 6a2638b | 2011-03-28 17:32:31 -0500 | [diff] [blame] | 967 | # issue11256: |
| 968 | f3 = self.makeCallable('**c') |
| 969 | self.assertEqualException(f3, '1, 2') |
| 970 | self.assertEqualException(f3, '1, 2, a=1, b=2') |
| 971 | f4 = self.makeCallable('*, a, b=0') |
| 972 | self.assertEqualException(f3, '1, 2') |
| 973 | self.assertEqualException(f3, '1, 2, a=1, b=2') |
Benjamin Peterson | 25cd7eb | 2010-03-30 18:42:32 +0000 | [diff] [blame] | 974 | |
| 975 | class TestGetcallargsMethods(TestGetcallargsFunctions): |
| 976 | |
| 977 | def setUp(self): |
| 978 | class Foo(object): |
| 979 | pass |
| 980 | self.cls = Foo |
| 981 | self.inst = Foo() |
| 982 | |
| 983 | def makeCallable(self, signature): |
| 984 | assert 'self' not in signature |
| 985 | mk = super(TestGetcallargsMethods, self).makeCallable |
| 986 | self.cls.method = mk('self, ' + signature) |
| 987 | return self.inst.method |
| 988 | |
| 989 | class TestGetcallargsUnboundMethods(TestGetcallargsMethods): |
| 990 | |
| 991 | def makeCallable(self, signature): |
| 992 | super(TestGetcallargsUnboundMethods, self).makeCallable(signature) |
| 993 | return self.cls.method |
| 994 | |
| 995 | def assertEqualCallArgs(self, func, call_params_string, locs=None): |
| 996 | return super(TestGetcallargsUnboundMethods, self).assertEqualCallArgs( |
| 997 | *self._getAssertEqualParams(func, call_params_string, locs)) |
| 998 | |
| 999 | def assertEqualException(self, func, call_params_string, locs=None): |
| 1000 | return super(TestGetcallargsUnboundMethods, self).assertEqualException( |
| 1001 | *self._getAssertEqualParams(func, call_params_string, locs)) |
| 1002 | |
| 1003 | def _getAssertEqualParams(self, func, call_params_string, locs=None): |
| 1004 | assert 'inst' not in call_params_string |
| 1005 | locs = dict(locs or {}, inst=self.inst) |
| 1006 | return (func, 'inst,' + call_params_string, locs) |
| 1007 | |
Michael Foord | 95fc51d | 2010-11-20 15:07:30 +0000 | [diff] [blame] | 1008 | |
| 1009 | class TestGetattrStatic(unittest.TestCase): |
| 1010 | |
| 1011 | def test_basic(self): |
| 1012 | class Thing(object): |
| 1013 | x = object() |
| 1014 | |
| 1015 | thing = Thing() |
| 1016 | self.assertEqual(inspect.getattr_static(thing, 'x'), Thing.x) |
| 1017 | self.assertEqual(inspect.getattr_static(thing, 'x', None), Thing.x) |
| 1018 | with self.assertRaises(AttributeError): |
| 1019 | inspect.getattr_static(thing, 'y') |
| 1020 | |
| 1021 | self.assertEqual(inspect.getattr_static(thing, 'y', 3), 3) |
| 1022 | |
| 1023 | def test_inherited(self): |
| 1024 | class Thing(object): |
| 1025 | x = object() |
| 1026 | class OtherThing(Thing): |
| 1027 | pass |
| 1028 | |
| 1029 | something = OtherThing() |
| 1030 | self.assertEqual(inspect.getattr_static(something, 'x'), Thing.x) |
| 1031 | |
| 1032 | def test_instance_attr(self): |
| 1033 | class Thing(object): |
| 1034 | x = 2 |
| 1035 | def __init__(self, x): |
| 1036 | self.x = x |
| 1037 | thing = Thing(3) |
| 1038 | self.assertEqual(inspect.getattr_static(thing, 'x'), 3) |
| 1039 | del thing.x |
| 1040 | self.assertEqual(inspect.getattr_static(thing, 'x'), 2) |
| 1041 | |
| 1042 | def test_property(self): |
| 1043 | class Thing(object): |
| 1044 | @property |
| 1045 | def x(self): |
| 1046 | raise AttributeError("I'm pretending not to exist") |
| 1047 | thing = Thing() |
| 1048 | self.assertEqual(inspect.getattr_static(thing, 'x'), Thing.x) |
| 1049 | |
Ezio Melotti | 75cbd73 | 2011-04-28 00:59:29 +0300 | [diff] [blame] | 1050 | def test_descriptor_raises_AttributeError(self): |
Michael Foord | 95fc51d | 2010-11-20 15:07:30 +0000 | [diff] [blame] | 1051 | class descriptor(object): |
| 1052 | def __get__(*_): |
| 1053 | raise AttributeError("I'm pretending not to exist") |
| 1054 | desc = descriptor() |
| 1055 | class Thing(object): |
| 1056 | x = desc |
| 1057 | thing = Thing() |
| 1058 | self.assertEqual(inspect.getattr_static(thing, 'x'), desc) |
| 1059 | |
| 1060 | def test_classAttribute(self): |
| 1061 | class Thing(object): |
| 1062 | x = object() |
| 1063 | |
| 1064 | self.assertEqual(inspect.getattr_static(Thing, 'x'), Thing.x) |
| 1065 | |
| 1066 | def test_inherited_classattribute(self): |
| 1067 | class Thing(object): |
| 1068 | x = object() |
| 1069 | class OtherThing(Thing): |
| 1070 | pass |
| 1071 | |
| 1072 | self.assertEqual(inspect.getattr_static(OtherThing, 'x'), Thing.x) |
| 1073 | |
| 1074 | def test_slots(self): |
| 1075 | class Thing(object): |
| 1076 | y = 'bar' |
| 1077 | __slots__ = ['x'] |
| 1078 | def __init__(self): |
| 1079 | self.x = 'foo' |
| 1080 | thing = Thing() |
| 1081 | self.assertEqual(inspect.getattr_static(thing, 'x'), Thing.x) |
| 1082 | self.assertEqual(inspect.getattr_static(thing, 'y'), 'bar') |
| 1083 | |
| 1084 | del thing.x |
| 1085 | self.assertEqual(inspect.getattr_static(thing, 'x'), Thing.x) |
| 1086 | |
| 1087 | def test_metaclass(self): |
| 1088 | class meta(type): |
| 1089 | attr = 'foo' |
| 1090 | class Thing(object, metaclass=meta): |
| 1091 | pass |
| 1092 | self.assertEqual(inspect.getattr_static(Thing, 'attr'), 'foo') |
| 1093 | |
| 1094 | class sub(meta): |
| 1095 | pass |
| 1096 | class OtherThing(object, metaclass=sub): |
| 1097 | x = 3 |
| 1098 | self.assertEqual(inspect.getattr_static(OtherThing, 'attr'), 'foo') |
| 1099 | |
| 1100 | class OtherOtherThing(OtherThing): |
| 1101 | pass |
| 1102 | # this test is odd, but it was added as it exposed a bug |
| 1103 | self.assertEqual(inspect.getattr_static(OtherOtherThing, 'x'), 3) |
| 1104 | |
| 1105 | def test_no_dict_no_slots(self): |
| 1106 | self.assertEqual(inspect.getattr_static(1, 'foo', None), None) |
| 1107 | self.assertNotEqual(inspect.getattr_static('foo', 'lower'), None) |
| 1108 | |
| 1109 | def test_no_dict_no_slots_instance_member(self): |
| 1110 | # returns descriptor |
| 1111 | with open(__file__) as handle: |
| 1112 | self.assertEqual(inspect.getattr_static(handle, 'name'), type(handle).name) |
| 1113 | |
| 1114 | def test_inherited_slots(self): |
| 1115 | # returns descriptor |
| 1116 | class Thing(object): |
| 1117 | __slots__ = ['x'] |
| 1118 | def __init__(self): |
| 1119 | self.x = 'foo' |
| 1120 | |
| 1121 | class OtherThing(Thing): |
| 1122 | pass |
| 1123 | # it would be nice if this worked... |
| 1124 | # we get the descriptor instead of the instance attribute |
| 1125 | self.assertEqual(inspect.getattr_static(OtherThing(), 'x'), Thing.x) |
| 1126 | |
| 1127 | def test_descriptor(self): |
| 1128 | class descriptor(object): |
| 1129 | def __get__(self, instance, owner): |
| 1130 | return 3 |
| 1131 | class Foo(object): |
| 1132 | d = descriptor() |
| 1133 | |
| 1134 | foo = Foo() |
| 1135 | |
| 1136 | # for a non data descriptor we return the instance attribute |
| 1137 | foo.__dict__['d'] = 1 |
| 1138 | self.assertEqual(inspect.getattr_static(foo, 'd'), 1) |
| 1139 | |
| 1140 | # if the descriptor is a data-desciptor we should return the |
| 1141 | # descriptor |
| 1142 | descriptor.__set__ = lambda s, i, v: None |
| 1143 | self.assertEqual(inspect.getattr_static(foo, 'd'), Foo.__dict__['d']) |
| 1144 | |
| 1145 | |
| 1146 | def test_metaclass_with_descriptor(self): |
| 1147 | class descriptor(object): |
| 1148 | def __get__(self, instance, owner): |
| 1149 | return 3 |
| 1150 | class meta(type): |
| 1151 | d = descriptor() |
| 1152 | class Thing(object, metaclass=meta): |
| 1153 | pass |
| 1154 | self.assertEqual(inspect.getattr_static(Thing, 'd'), meta.__dict__['d']) |
| 1155 | |
| 1156 | |
Michael Foord | cc7ebb8 | 2010-11-20 16:20:16 +0000 | [diff] [blame] | 1157 | def test_class_as_property(self): |
| 1158 | class Base(object): |
| 1159 | foo = 3 |
| 1160 | |
| 1161 | class Something(Base): |
Michael Foord | 35184ed | 2010-11-20 16:58:30 +0000 | [diff] [blame] | 1162 | executed = False |
Michael Foord | cc7ebb8 | 2010-11-20 16:20:16 +0000 | [diff] [blame] | 1163 | @property |
| 1164 | def __class__(self): |
Michael Foord | 35184ed | 2010-11-20 16:58:30 +0000 | [diff] [blame] | 1165 | self.executed = True |
Michael Foord | cc7ebb8 | 2010-11-20 16:20:16 +0000 | [diff] [blame] | 1166 | return object |
| 1167 | |
Michael Foord | 35184ed | 2010-11-20 16:58:30 +0000 | [diff] [blame] | 1168 | instance = Something() |
| 1169 | self.assertEqual(inspect.getattr_static(instance, 'foo'), 3) |
| 1170 | self.assertFalse(instance.executed) |
Michael Foord | cc7ebb8 | 2010-11-20 16:20:16 +0000 | [diff] [blame] | 1171 | self.assertEqual(inspect.getattr_static(Something, 'foo'), 3) |
| 1172 | |
Michael Foord | e516265 | 2010-11-20 16:40:44 +0000 | [diff] [blame] | 1173 | def test_mro_as_property(self): |
| 1174 | class Meta(type): |
| 1175 | @property |
| 1176 | def __mro__(self): |
| 1177 | return (object,) |
| 1178 | |
| 1179 | class Base(object): |
| 1180 | foo = 3 |
| 1181 | |
| 1182 | class Something(Base, metaclass=Meta): |
| 1183 | pass |
| 1184 | |
| 1185 | self.assertEqual(inspect.getattr_static(Something(), 'foo'), 3) |
| 1186 | self.assertEqual(inspect.getattr_static(Something, 'foo'), 3) |
| 1187 | |
Michael Foord | dcebe0f | 2011-03-15 19:20:44 -0400 | [diff] [blame] | 1188 | def test_dict_as_property(self): |
| 1189 | test = self |
| 1190 | test.called = False |
| 1191 | |
| 1192 | class Foo(dict): |
| 1193 | a = 3 |
| 1194 | @property |
| 1195 | def __dict__(self): |
| 1196 | test.called = True |
| 1197 | return {} |
| 1198 | |
| 1199 | foo = Foo() |
| 1200 | foo.a = 4 |
| 1201 | self.assertEqual(inspect.getattr_static(foo, 'a'), 3) |
| 1202 | self.assertFalse(test.called) |
| 1203 | |
| 1204 | def test_custom_object_dict(self): |
| 1205 | test = self |
| 1206 | test.called = False |
| 1207 | |
| 1208 | class Custom(dict): |
| 1209 | def get(self, key, default=None): |
| 1210 | test.called = True |
| 1211 | super().get(key, default) |
| 1212 | |
| 1213 | class Foo(object): |
| 1214 | a = 3 |
| 1215 | foo = Foo() |
| 1216 | foo.__dict__ = Custom() |
| 1217 | self.assertEqual(inspect.getattr_static(foo, 'a'), 3) |
| 1218 | self.assertFalse(test.called) |
| 1219 | |
| 1220 | def test_metaclass_dict_as_property(self): |
| 1221 | class Meta(type): |
| 1222 | @property |
| 1223 | def __dict__(self): |
| 1224 | self.executed = True |
| 1225 | |
| 1226 | class Thing(metaclass=Meta): |
| 1227 | executed = False |
| 1228 | |
| 1229 | def __init__(self): |
| 1230 | self.spam = 42 |
| 1231 | |
| 1232 | instance = Thing() |
| 1233 | self.assertEqual(inspect.getattr_static(instance, "spam"), 42) |
| 1234 | self.assertFalse(Thing.executed) |
Michael Foord | e516265 | 2010-11-20 16:40:44 +0000 | [diff] [blame] | 1235 | |
Michael Foord | a51623b | 2011-12-18 22:01:40 +0000 | [diff] [blame] | 1236 | def test_module(self): |
| 1237 | sentinel = object() |
| 1238 | self.assertIsNot(inspect.getattr_static(sys, "version", sentinel), |
| 1239 | sentinel) |
| 1240 | |
Michael Foord | 3ba95f8 | 2011-12-22 01:13:37 +0000 | [diff] [blame] | 1241 | def test_metaclass_with_metaclass_with_dict_as_property(self): |
| 1242 | class MetaMeta(type): |
| 1243 | @property |
| 1244 | def __dict__(self): |
| 1245 | self.executed = True |
| 1246 | return dict(spam=42) |
| 1247 | |
| 1248 | class Meta(type, metaclass=MetaMeta): |
| 1249 | executed = False |
| 1250 | |
| 1251 | class Thing(metaclass=Meta): |
| 1252 | pass |
| 1253 | |
| 1254 | with self.assertRaises(AttributeError): |
| 1255 | inspect.getattr_static(Thing, "spam") |
| 1256 | self.assertFalse(Thing.executed) |
| 1257 | |
Nick Coghlan | e0f0465 | 2010-11-21 03:44:04 +0000 | [diff] [blame] | 1258 | class TestGetGeneratorState(unittest.TestCase): |
| 1259 | |
| 1260 | def setUp(self): |
| 1261 | def number_generator(): |
| 1262 | for number in range(5): |
| 1263 | yield number |
| 1264 | self.generator = number_generator() |
| 1265 | |
| 1266 | def _generatorstate(self): |
| 1267 | return inspect.getgeneratorstate(self.generator) |
| 1268 | |
| 1269 | def test_created(self): |
| 1270 | self.assertEqual(self._generatorstate(), inspect.GEN_CREATED) |
| 1271 | |
| 1272 | def test_suspended(self): |
| 1273 | next(self.generator) |
| 1274 | self.assertEqual(self._generatorstate(), inspect.GEN_SUSPENDED) |
| 1275 | |
| 1276 | def test_closed_after_exhaustion(self): |
| 1277 | for i in self.generator: |
| 1278 | pass |
| 1279 | self.assertEqual(self._generatorstate(), inspect.GEN_CLOSED) |
| 1280 | |
| 1281 | def test_closed_after_immediate_exception(self): |
| 1282 | with self.assertRaises(RuntimeError): |
| 1283 | self.generator.throw(RuntimeError) |
| 1284 | self.assertEqual(self._generatorstate(), inspect.GEN_CLOSED) |
| 1285 | |
| 1286 | def test_running(self): |
| 1287 | # As mentioned on issue #10220, checking for the RUNNING state only |
| 1288 | # makes sense inside the generator itself. |
| 1289 | # The following generator checks for this by using the closure's |
| 1290 | # reference to self and the generator state checking helper method |
| 1291 | def running_check_generator(): |
| 1292 | for number in range(5): |
| 1293 | self.assertEqual(self._generatorstate(), inspect.GEN_RUNNING) |
| 1294 | yield number |
| 1295 | self.assertEqual(self._generatorstate(), inspect.GEN_RUNNING) |
| 1296 | self.generator = running_check_generator() |
| 1297 | # Running up to the first yield |
| 1298 | next(self.generator) |
| 1299 | # Running after the first yield |
| 1300 | next(self.generator) |
| 1301 | |
Nick Coghlan | 7921b9f | 2010-11-30 06:36:04 +0000 | [diff] [blame] | 1302 | def test_easy_debugging(self): |
| 1303 | # repr() and str() of a generator state should contain the state name |
| 1304 | names = 'GEN_CREATED GEN_RUNNING GEN_SUSPENDED GEN_CLOSED'.split() |
| 1305 | for name in names: |
| 1306 | state = getattr(inspect, name) |
| 1307 | self.assertIn(name, repr(state)) |
| 1308 | self.assertIn(name, str(state)) |
| 1309 | |
Nick Coghlan | 04e2e3f | 2012-06-23 19:52:05 +1000 | [diff] [blame] | 1310 | def test_getgeneratorlocals(self): |
| 1311 | def each(lst, a=None): |
| 1312 | b=(1, 2, 3) |
| 1313 | for v in lst: |
| 1314 | if v == 3: |
| 1315 | c = 12 |
| 1316 | yield v |
| 1317 | |
| 1318 | numbers = each([1, 2, 3]) |
| 1319 | self.assertEqual(inspect.getgeneratorlocals(numbers), |
| 1320 | {'a': None, 'lst': [1, 2, 3]}) |
| 1321 | next(numbers) |
| 1322 | self.assertEqual(inspect.getgeneratorlocals(numbers), |
| 1323 | {'a': None, 'lst': [1, 2, 3], 'v': 1, |
| 1324 | 'b': (1, 2, 3)}) |
| 1325 | next(numbers) |
| 1326 | self.assertEqual(inspect.getgeneratorlocals(numbers), |
| 1327 | {'a': None, 'lst': [1, 2, 3], 'v': 2, |
| 1328 | 'b': (1, 2, 3)}) |
| 1329 | next(numbers) |
| 1330 | self.assertEqual(inspect.getgeneratorlocals(numbers), |
| 1331 | {'a': None, 'lst': [1, 2, 3], 'v': 3, |
| 1332 | 'b': (1, 2, 3), 'c': 12}) |
| 1333 | try: |
| 1334 | next(numbers) |
| 1335 | except StopIteration: |
| 1336 | pass |
| 1337 | self.assertEqual(inspect.getgeneratorlocals(numbers), {}) |
| 1338 | |
| 1339 | def test_getgeneratorlocals_empty(self): |
| 1340 | def yield_one(): |
| 1341 | yield 1 |
| 1342 | one = yield_one() |
| 1343 | self.assertEqual(inspect.getgeneratorlocals(one), {}) |
| 1344 | try: |
| 1345 | next(one) |
| 1346 | except StopIteration: |
| 1347 | pass |
| 1348 | self.assertEqual(inspect.getgeneratorlocals(one), {}) |
| 1349 | |
| 1350 | def test_getgeneratorlocals_error(self): |
| 1351 | self.assertRaises(TypeError, inspect.getgeneratorlocals, 1) |
| 1352 | self.assertRaises(TypeError, inspect.getgeneratorlocals, lambda x: True) |
| 1353 | self.assertRaises(TypeError, inspect.getgeneratorlocals, set) |
| 1354 | self.assertRaises(TypeError, inspect.getgeneratorlocals, (2,3)) |
| 1355 | |
Nick Coghlan | e0f0465 | 2010-11-21 03:44:04 +0000 | [diff] [blame] | 1356 | |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 1357 | class TestSignatureObject(unittest.TestCase): |
| 1358 | @staticmethod |
| 1359 | def signature(func): |
| 1360 | sig = inspect.signature(func) |
| 1361 | return (tuple((param.name, |
| 1362 | (... if param.default is param.empty else param.default), |
| 1363 | (... if param.annotation is param.empty |
| 1364 | else param.annotation), |
| 1365 | str(param.kind).lower()) |
| 1366 | for param in sig.parameters.values()), |
| 1367 | (... if sig.return_annotation is sig.empty |
| 1368 | else sig.return_annotation)) |
| 1369 | |
| 1370 | def test_signature_object(self): |
| 1371 | S = inspect.Signature |
| 1372 | P = inspect.Parameter |
| 1373 | |
| 1374 | self.assertEqual(str(S()), '()') |
| 1375 | |
| 1376 | def test(po, pk, *args, ko, **kwargs): |
| 1377 | pass |
| 1378 | sig = inspect.signature(test) |
| 1379 | po = sig.parameters['po'].replace(kind=P.POSITIONAL_ONLY) |
| 1380 | pk = sig.parameters['pk'] |
| 1381 | args = sig.parameters['args'] |
| 1382 | ko = sig.parameters['ko'] |
| 1383 | kwargs = sig.parameters['kwargs'] |
| 1384 | |
| 1385 | S((po, pk, args, ko, kwargs)) |
| 1386 | |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 1387 | with self.assertRaisesRegex(ValueError, 'wrong parameter order'): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 1388 | S((pk, po, args, ko, kwargs)) |
| 1389 | |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 1390 | with self.assertRaisesRegex(ValueError, 'wrong parameter order'): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 1391 | S((po, args, pk, ko, kwargs)) |
| 1392 | |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 1393 | with self.assertRaisesRegex(ValueError, 'wrong parameter order'): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 1394 | S((args, po, pk, ko, kwargs)) |
| 1395 | |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 1396 | with self.assertRaisesRegex(ValueError, 'wrong parameter order'): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 1397 | S((po, pk, args, kwargs, ko)) |
| 1398 | |
| 1399 | kwargs2 = kwargs.replace(name='args') |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 1400 | with self.assertRaisesRegex(ValueError, 'duplicate parameter name'): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 1401 | S((po, pk, args, kwargs2, ko)) |
| 1402 | |
| 1403 | def test_signature_immutability(self): |
| 1404 | def test(a): |
| 1405 | pass |
| 1406 | sig = inspect.signature(test) |
| 1407 | |
| 1408 | with self.assertRaises(AttributeError): |
| 1409 | sig.foo = 'bar' |
| 1410 | |
| 1411 | with self.assertRaises(TypeError): |
| 1412 | sig.parameters['a'] = None |
| 1413 | |
| 1414 | def test_signature_on_noarg(self): |
| 1415 | def test(): |
| 1416 | pass |
| 1417 | self.assertEqual(self.signature(test), ((), ...)) |
| 1418 | |
| 1419 | def test_signature_on_wargs(self): |
| 1420 | def test(a, b:'foo') -> 123: |
| 1421 | pass |
| 1422 | self.assertEqual(self.signature(test), |
| 1423 | ((('a', ..., ..., "positional_or_keyword"), |
| 1424 | ('b', ..., 'foo', "positional_or_keyword")), |
| 1425 | 123)) |
| 1426 | |
| 1427 | def test_signature_on_wkwonly(self): |
| 1428 | def test(*, a:float, b:str) -> int: |
| 1429 | pass |
| 1430 | self.assertEqual(self.signature(test), |
| 1431 | ((('a', ..., float, "keyword_only"), |
| 1432 | ('b', ..., str, "keyword_only")), |
| 1433 | int)) |
| 1434 | |
| 1435 | def test_signature_on_complex_args(self): |
| 1436 | def test(a, b:'foo'=10, *args:'bar', spam:'baz', ham=123, **kwargs:int): |
| 1437 | pass |
| 1438 | self.assertEqual(self.signature(test), |
| 1439 | ((('a', ..., ..., "positional_or_keyword"), |
| 1440 | ('b', 10, 'foo', "positional_or_keyword"), |
| 1441 | ('args', ..., 'bar', "var_positional"), |
| 1442 | ('spam', ..., 'baz', "keyword_only"), |
| 1443 | ('ham', 123, ..., "keyword_only"), |
| 1444 | ('kwargs', ..., int, "var_keyword")), |
| 1445 | ...)) |
| 1446 | |
| 1447 | def test_signature_on_builtin_function(self): |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 1448 | with self.assertRaisesRegex(ValueError, 'not supported by signature'): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 1449 | inspect.signature(type) |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 1450 | with self.assertRaisesRegex(ValueError, 'not supported by signature'): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 1451 | # support for 'wrapper_descriptor' |
| 1452 | inspect.signature(type.__call__) |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 1453 | with self.assertRaisesRegex(ValueError, 'not supported by signature'): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 1454 | # support for 'method-wrapper' |
| 1455 | inspect.signature(min.__call__) |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 1456 | with self.assertRaisesRegex(ValueError, |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 1457 | 'no signature found for builtin function'): |
| 1458 | # support for 'method-wrapper' |
| 1459 | inspect.signature(min) |
| 1460 | |
| 1461 | def test_signature_on_non_function(self): |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 1462 | with self.assertRaisesRegex(TypeError, 'is not a callable object'): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 1463 | inspect.signature(42) |
| 1464 | |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 1465 | with self.assertRaisesRegex(TypeError, 'is not a Python function'): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 1466 | inspect.Signature.from_function(42) |
| 1467 | |
| 1468 | def test_signature_on_method(self): |
| 1469 | class Test: |
| 1470 | def foo(self, arg1, arg2=1) -> int: |
| 1471 | pass |
| 1472 | |
| 1473 | meth = Test().foo |
| 1474 | |
| 1475 | self.assertEqual(self.signature(meth), |
| 1476 | ((('arg1', ..., ..., "positional_or_keyword"), |
| 1477 | ('arg2', 1, ..., "positional_or_keyword")), |
| 1478 | int)) |
| 1479 | |
| 1480 | def test_signature_on_classmethod(self): |
| 1481 | class Test: |
| 1482 | @classmethod |
| 1483 | def foo(cls, arg1, *, arg2=1): |
| 1484 | pass |
| 1485 | |
| 1486 | meth = Test().foo |
| 1487 | self.assertEqual(self.signature(meth), |
| 1488 | ((('arg1', ..., ..., "positional_or_keyword"), |
| 1489 | ('arg2', 1, ..., "keyword_only")), |
| 1490 | ...)) |
| 1491 | |
| 1492 | meth = Test.foo |
| 1493 | self.assertEqual(self.signature(meth), |
| 1494 | ((('arg1', ..., ..., "positional_or_keyword"), |
| 1495 | ('arg2', 1, ..., "keyword_only")), |
| 1496 | ...)) |
| 1497 | |
| 1498 | def test_signature_on_staticmethod(self): |
| 1499 | class Test: |
| 1500 | @staticmethod |
| 1501 | def foo(cls, *, arg): |
| 1502 | pass |
| 1503 | |
| 1504 | meth = Test().foo |
| 1505 | self.assertEqual(self.signature(meth), |
| 1506 | ((('cls', ..., ..., "positional_or_keyword"), |
| 1507 | ('arg', ..., ..., "keyword_only")), |
| 1508 | ...)) |
| 1509 | |
| 1510 | meth = Test.foo |
| 1511 | self.assertEqual(self.signature(meth), |
| 1512 | ((('cls', ..., ..., "positional_or_keyword"), |
| 1513 | ('arg', ..., ..., "keyword_only")), |
| 1514 | ...)) |
| 1515 | |
| 1516 | def test_signature_on_partial(self): |
| 1517 | from functools import partial |
| 1518 | |
| 1519 | def test(): |
| 1520 | pass |
| 1521 | |
| 1522 | self.assertEqual(self.signature(partial(test)), ((), ...)) |
| 1523 | |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 1524 | with self.assertRaisesRegex(ValueError, "has incorrect arguments"): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 1525 | inspect.signature(partial(test, 1)) |
| 1526 | |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 1527 | with self.assertRaisesRegex(ValueError, "has incorrect arguments"): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 1528 | inspect.signature(partial(test, a=1)) |
| 1529 | |
| 1530 | def test(a, b, *, c, d): |
| 1531 | pass |
| 1532 | |
| 1533 | self.assertEqual(self.signature(partial(test)), |
| 1534 | ((('a', ..., ..., "positional_or_keyword"), |
| 1535 | ('b', ..., ..., "positional_or_keyword"), |
| 1536 | ('c', ..., ..., "keyword_only"), |
| 1537 | ('d', ..., ..., "keyword_only")), |
| 1538 | ...)) |
| 1539 | |
| 1540 | self.assertEqual(self.signature(partial(test, 1)), |
| 1541 | ((('b', ..., ..., "positional_or_keyword"), |
| 1542 | ('c', ..., ..., "keyword_only"), |
| 1543 | ('d', ..., ..., "keyword_only")), |
| 1544 | ...)) |
| 1545 | |
| 1546 | self.assertEqual(self.signature(partial(test, 1, c=2)), |
| 1547 | ((('b', ..., ..., "positional_or_keyword"), |
| 1548 | ('c', 2, ..., "keyword_only"), |
| 1549 | ('d', ..., ..., "keyword_only")), |
| 1550 | ...)) |
| 1551 | |
| 1552 | self.assertEqual(self.signature(partial(test, b=1, c=2)), |
| 1553 | ((('a', ..., ..., "positional_or_keyword"), |
| 1554 | ('b', 1, ..., "positional_or_keyword"), |
| 1555 | ('c', 2, ..., "keyword_only"), |
| 1556 | ('d', ..., ..., "keyword_only")), |
| 1557 | ...)) |
| 1558 | |
| 1559 | self.assertEqual(self.signature(partial(test, 0, b=1, c=2)), |
| 1560 | ((('b', 1, ..., "positional_or_keyword"), |
| 1561 | ('c', 2, ..., "keyword_only"), |
| 1562 | ('d', ..., ..., "keyword_only"),), |
| 1563 | ...)) |
| 1564 | |
| 1565 | def test(a, *args, b, **kwargs): |
| 1566 | pass |
| 1567 | |
| 1568 | self.assertEqual(self.signature(partial(test, 1)), |
| 1569 | ((('args', ..., ..., "var_positional"), |
| 1570 | ('b', ..., ..., "keyword_only"), |
| 1571 | ('kwargs', ..., ..., "var_keyword")), |
| 1572 | ...)) |
| 1573 | |
| 1574 | self.assertEqual(self.signature(partial(test, 1, 2, 3)), |
| 1575 | ((('args', ..., ..., "var_positional"), |
| 1576 | ('b', ..., ..., "keyword_only"), |
| 1577 | ('kwargs', ..., ..., "var_keyword")), |
| 1578 | ...)) |
| 1579 | |
| 1580 | |
| 1581 | self.assertEqual(self.signature(partial(test, 1, 2, 3, test=True)), |
| 1582 | ((('args', ..., ..., "var_positional"), |
| 1583 | ('b', ..., ..., "keyword_only"), |
| 1584 | ('kwargs', ..., ..., "var_keyword")), |
| 1585 | ...)) |
| 1586 | |
| 1587 | self.assertEqual(self.signature(partial(test, 1, 2, 3, test=1, b=0)), |
| 1588 | ((('args', ..., ..., "var_positional"), |
| 1589 | ('b', 0, ..., "keyword_only"), |
| 1590 | ('kwargs', ..., ..., "var_keyword")), |
| 1591 | ...)) |
| 1592 | |
| 1593 | self.assertEqual(self.signature(partial(test, b=0)), |
| 1594 | ((('a', ..., ..., "positional_or_keyword"), |
| 1595 | ('args', ..., ..., "var_positional"), |
| 1596 | ('b', 0, ..., "keyword_only"), |
| 1597 | ('kwargs', ..., ..., "var_keyword")), |
| 1598 | ...)) |
| 1599 | |
| 1600 | self.assertEqual(self.signature(partial(test, b=0, test=1)), |
| 1601 | ((('a', ..., ..., "positional_or_keyword"), |
| 1602 | ('args', ..., ..., "var_positional"), |
| 1603 | ('b', 0, ..., "keyword_only"), |
| 1604 | ('kwargs', ..., ..., "var_keyword")), |
| 1605 | ...)) |
| 1606 | |
| 1607 | def test(a, b, c:int) -> 42: |
| 1608 | pass |
| 1609 | |
| 1610 | sig = test.__signature__ = inspect.signature(test) |
| 1611 | |
| 1612 | self.assertEqual(self.signature(partial(partial(test, 1))), |
| 1613 | ((('b', ..., ..., "positional_or_keyword"), |
| 1614 | ('c', ..., int, "positional_or_keyword")), |
| 1615 | 42)) |
| 1616 | |
| 1617 | self.assertEqual(self.signature(partial(partial(test, 1), 2)), |
| 1618 | ((('c', ..., int, "positional_or_keyword"),), |
| 1619 | 42)) |
| 1620 | |
| 1621 | psig = inspect.signature(partial(partial(test, 1), 2)) |
| 1622 | |
| 1623 | def foo(a): |
| 1624 | return a |
| 1625 | _foo = partial(partial(foo, a=10), a=20) |
| 1626 | self.assertEqual(self.signature(_foo), |
| 1627 | ((('a', 20, ..., "positional_or_keyword"),), |
| 1628 | ...)) |
| 1629 | # check that we don't have any side-effects in signature(), |
| 1630 | # and the partial object is still functioning |
| 1631 | self.assertEqual(_foo(), 20) |
| 1632 | |
| 1633 | def foo(a, b, c): |
| 1634 | return a, b, c |
| 1635 | _foo = partial(partial(foo, 1, b=20), b=30) |
| 1636 | self.assertEqual(self.signature(_foo), |
| 1637 | ((('b', 30, ..., "positional_or_keyword"), |
| 1638 | ('c', ..., ..., "positional_or_keyword")), |
| 1639 | ...)) |
| 1640 | self.assertEqual(_foo(c=10), (1, 30, 10)) |
| 1641 | _foo = partial(_foo, 2) # now 'b' has two values - |
| 1642 | # positional and keyword |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 1643 | with self.assertRaisesRegex(ValueError, "has incorrect arguments"): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 1644 | inspect.signature(_foo) |
| 1645 | |
| 1646 | def foo(a, b, c, *, d): |
| 1647 | return a, b, c, d |
| 1648 | _foo = partial(partial(foo, d=20, c=20), b=10, d=30) |
| 1649 | self.assertEqual(self.signature(_foo), |
| 1650 | ((('a', ..., ..., "positional_or_keyword"), |
| 1651 | ('b', 10, ..., "positional_or_keyword"), |
| 1652 | ('c', 20, ..., "positional_or_keyword"), |
| 1653 | ('d', 30, ..., "keyword_only")), |
| 1654 | ...)) |
| 1655 | ba = inspect.signature(_foo).bind(a=200, b=11) |
| 1656 | self.assertEqual(_foo(*ba.args, **ba.kwargs), (200, 11, 20, 30)) |
| 1657 | |
| 1658 | def foo(a=1, b=2, c=3): |
| 1659 | return a, b, c |
| 1660 | _foo = partial(foo, a=10, c=13) |
| 1661 | ba = inspect.signature(_foo).bind(11) |
| 1662 | self.assertEqual(_foo(*ba.args, **ba.kwargs), (11, 2, 13)) |
| 1663 | ba = inspect.signature(_foo).bind(11, 12) |
| 1664 | self.assertEqual(_foo(*ba.args, **ba.kwargs), (11, 12, 13)) |
| 1665 | ba = inspect.signature(_foo).bind(11, b=12) |
| 1666 | self.assertEqual(_foo(*ba.args, **ba.kwargs), (11, 12, 13)) |
| 1667 | ba = inspect.signature(_foo).bind(b=12) |
| 1668 | self.assertEqual(_foo(*ba.args, **ba.kwargs), (10, 12, 13)) |
| 1669 | _foo = partial(_foo, b=10) |
| 1670 | ba = inspect.signature(_foo).bind(12, 14) |
| 1671 | self.assertEqual(_foo(*ba.args, **ba.kwargs), (12, 14, 13)) |
| 1672 | |
| 1673 | def test_signature_on_decorated(self): |
| 1674 | import functools |
| 1675 | |
| 1676 | def decorator(func): |
| 1677 | @functools.wraps(func) |
| 1678 | def wrapper(*args, **kwargs) -> int: |
| 1679 | return func(*args, **kwargs) |
| 1680 | return wrapper |
| 1681 | |
| 1682 | class Foo: |
| 1683 | @decorator |
| 1684 | def bar(self, a, b): |
| 1685 | pass |
| 1686 | |
| 1687 | self.assertEqual(self.signature(Foo.bar), |
| 1688 | ((('self', ..., ..., "positional_or_keyword"), |
| 1689 | ('a', ..., ..., "positional_or_keyword"), |
| 1690 | ('b', ..., ..., "positional_or_keyword")), |
| 1691 | ...)) |
| 1692 | |
| 1693 | self.assertEqual(self.signature(Foo().bar), |
| 1694 | ((('a', ..., ..., "positional_or_keyword"), |
| 1695 | ('b', ..., ..., "positional_or_keyword")), |
| 1696 | ...)) |
| 1697 | |
| 1698 | # Test that we handle method wrappers correctly |
| 1699 | def decorator(func): |
| 1700 | @functools.wraps(func) |
| 1701 | def wrapper(*args, **kwargs) -> int: |
| 1702 | return func(42, *args, **kwargs) |
| 1703 | sig = inspect.signature(func) |
| 1704 | new_params = tuple(sig.parameters.values())[1:] |
| 1705 | wrapper.__signature__ = sig.replace(parameters=new_params) |
| 1706 | return wrapper |
| 1707 | |
| 1708 | class Foo: |
| 1709 | @decorator |
| 1710 | def __call__(self, a, b): |
| 1711 | pass |
| 1712 | |
| 1713 | self.assertEqual(self.signature(Foo.__call__), |
| 1714 | ((('a', ..., ..., "positional_or_keyword"), |
| 1715 | ('b', ..., ..., "positional_or_keyword")), |
| 1716 | ...)) |
| 1717 | |
| 1718 | self.assertEqual(self.signature(Foo().__call__), |
| 1719 | ((('b', ..., ..., "positional_or_keyword"),), |
| 1720 | ...)) |
| 1721 | |
| 1722 | def test_signature_on_class(self): |
| 1723 | class C: |
| 1724 | def __init__(self, a): |
| 1725 | pass |
| 1726 | |
| 1727 | self.assertEqual(self.signature(C), |
| 1728 | ((('a', ..., ..., "positional_or_keyword"),), |
| 1729 | ...)) |
| 1730 | |
| 1731 | class CM(type): |
| 1732 | def __call__(cls, a): |
| 1733 | pass |
| 1734 | class C(metaclass=CM): |
| 1735 | def __init__(self, b): |
| 1736 | pass |
| 1737 | |
| 1738 | self.assertEqual(self.signature(C), |
| 1739 | ((('a', ..., ..., "positional_or_keyword"),), |
| 1740 | ...)) |
| 1741 | |
| 1742 | class CM(type): |
| 1743 | def __new__(mcls, name, bases, dct, *, foo=1): |
| 1744 | return super().__new__(mcls, name, bases, dct) |
| 1745 | class C(metaclass=CM): |
| 1746 | def __init__(self, b): |
| 1747 | pass |
| 1748 | |
| 1749 | self.assertEqual(self.signature(C), |
| 1750 | ((('b', ..., ..., "positional_or_keyword"),), |
| 1751 | ...)) |
| 1752 | |
| 1753 | self.assertEqual(self.signature(CM), |
| 1754 | ((('name', ..., ..., "positional_or_keyword"), |
| 1755 | ('bases', ..., ..., "positional_or_keyword"), |
| 1756 | ('dct', ..., ..., "positional_or_keyword"), |
| 1757 | ('foo', 1, ..., "keyword_only")), |
| 1758 | ...)) |
| 1759 | |
| 1760 | class CMM(type): |
| 1761 | def __new__(mcls, name, bases, dct, *, foo=1): |
| 1762 | return super().__new__(mcls, name, bases, dct) |
| 1763 | def __call__(cls, nm, bs, dt): |
| 1764 | return type(nm, bs, dt) |
| 1765 | class CM(type, metaclass=CMM): |
| 1766 | def __new__(mcls, name, bases, dct, *, bar=2): |
| 1767 | return super().__new__(mcls, name, bases, dct) |
| 1768 | class C(metaclass=CM): |
| 1769 | def __init__(self, b): |
| 1770 | pass |
| 1771 | |
| 1772 | self.assertEqual(self.signature(CMM), |
| 1773 | ((('name', ..., ..., "positional_or_keyword"), |
| 1774 | ('bases', ..., ..., "positional_or_keyword"), |
| 1775 | ('dct', ..., ..., "positional_or_keyword"), |
| 1776 | ('foo', 1, ..., "keyword_only")), |
| 1777 | ...)) |
| 1778 | |
| 1779 | self.assertEqual(self.signature(CM), |
| 1780 | ((('nm', ..., ..., "positional_or_keyword"), |
| 1781 | ('bs', ..., ..., "positional_or_keyword"), |
| 1782 | ('dt', ..., ..., "positional_or_keyword")), |
| 1783 | ...)) |
| 1784 | |
| 1785 | self.assertEqual(self.signature(C), |
| 1786 | ((('b', ..., ..., "positional_or_keyword"),), |
| 1787 | ...)) |
| 1788 | |
| 1789 | class CM(type): |
| 1790 | def __init__(cls, name, bases, dct, *, bar=2): |
| 1791 | return super().__init__(name, bases, dct) |
| 1792 | class C(metaclass=CM): |
| 1793 | def __init__(self, b): |
| 1794 | pass |
| 1795 | |
| 1796 | self.assertEqual(self.signature(CM), |
| 1797 | ((('name', ..., ..., "positional_or_keyword"), |
| 1798 | ('bases', ..., ..., "positional_or_keyword"), |
| 1799 | ('dct', ..., ..., "positional_or_keyword"), |
| 1800 | ('bar', 2, ..., "keyword_only")), |
| 1801 | ...)) |
| 1802 | |
| 1803 | def test_signature_on_callable_objects(self): |
| 1804 | class Foo: |
| 1805 | def __call__(self, a): |
| 1806 | pass |
| 1807 | |
| 1808 | self.assertEqual(self.signature(Foo()), |
| 1809 | ((('a', ..., ..., "positional_or_keyword"),), |
| 1810 | ...)) |
| 1811 | |
| 1812 | class Spam: |
| 1813 | pass |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 1814 | with self.assertRaisesRegex(TypeError, "is not a callable object"): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 1815 | inspect.signature(Spam()) |
| 1816 | |
| 1817 | class Bar(Spam, Foo): |
| 1818 | pass |
| 1819 | |
| 1820 | self.assertEqual(self.signature(Bar()), |
| 1821 | ((('a', ..., ..., "positional_or_keyword"),), |
| 1822 | ...)) |
| 1823 | |
| 1824 | class ToFail: |
| 1825 | __call__ = type |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 1826 | with self.assertRaisesRegex(ValueError, "not supported by signature"): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 1827 | inspect.signature(ToFail()) |
| 1828 | |
| 1829 | |
| 1830 | class Wrapped: |
| 1831 | pass |
| 1832 | Wrapped.__wrapped__ = lambda a: None |
| 1833 | self.assertEqual(self.signature(Wrapped), |
| 1834 | ((('a', ..., ..., "positional_or_keyword"),), |
| 1835 | ...)) |
| 1836 | |
| 1837 | def test_signature_on_lambdas(self): |
| 1838 | self.assertEqual(self.signature((lambda a=10: a)), |
| 1839 | ((('a', 10, ..., "positional_or_keyword"),), |
| 1840 | ...)) |
| 1841 | |
| 1842 | def test_signature_equality(self): |
| 1843 | def foo(a, *, b:int) -> float: pass |
| 1844 | self.assertNotEqual(inspect.signature(foo), 42) |
| 1845 | |
| 1846 | def bar(a, *, b:int) -> float: pass |
| 1847 | self.assertEqual(inspect.signature(foo), inspect.signature(bar)) |
| 1848 | |
| 1849 | def bar(a, *, b:int) -> int: pass |
| 1850 | self.assertNotEqual(inspect.signature(foo), inspect.signature(bar)) |
| 1851 | |
| 1852 | def bar(a, *, b:int): pass |
| 1853 | self.assertNotEqual(inspect.signature(foo), inspect.signature(bar)) |
| 1854 | |
| 1855 | def bar(a, *, b:int=42) -> float: pass |
| 1856 | self.assertNotEqual(inspect.signature(foo), inspect.signature(bar)) |
| 1857 | |
| 1858 | def bar(a, *, c) -> float: pass |
| 1859 | self.assertNotEqual(inspect.signature(foo), inspect.signature(bar)) |
| 1860 | |
| 1861 | def bar(a, b:int) -> float: pass |
| 1862 | self.assertNotEqual(inspect.signature(foo), inspect.signature(bar)) |
| 1863 | def spam(b:int, a) -> float: pass |
| 1864 | self.assertNotEqual(inspect.signature(spam), inspect.signature(bar)) |
| 1865 | |
| 1866 | def foo(*, a, b, c): pass |
| 1867 | def bar(*, c, b, a): pass |
| 1868 | self.assertEqual(inspect.signature(foo), inspect.signature(bar)) |
| 1869 | |
| 1870 | def foo(*, a=1, b, c): pass |
| 1871 | def bar(*, c, b, a=1): pass |
| 1872 | self.assertEqual(inspect.signature(foo), inspect.signature(bar)) |
| 1873 | |
| 1874 | def foo(pos, *, a=1, b, c): pass |
| 1875 | def bar(pos, *, c, b, a=1): pass |
| 1876 | self.assertEqual(inspect.signature(foo), inspect.signature(bar)) |
| 1877 | |
| 1878 | def foo(pos, *, a, b, c): pass |
| 1879 | def bar(pos, *, c, b, a=1): pass |
| 1880 | self.assertNotEqual(inspect.signature(foo), inspect.signature(bar)) |
| 1881 | |
| 1882 | def foo(pos, *args, a=42, b, c, **kwargs:int): pass |
| 1883 | def bar(pos, *args, c, b, a=42, **kwargs:int): pass |
| 1884 | self.assertEqual(inspect.signature(foo), inspect.signature(bar)) |
| 1885 | |
| 1886 | def test_signature_unhashable(self): |
| 1887 | def foo(a): pass |
| 1888 | sig = inspect.signature(foo) |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 1889 | with self.assertRaisesRegex(TypeError, 'unhashable type'): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 1890 | hash(sig) |
| 1891 | |
| 1892 | def test_signature_str(self): |
| 1893 | def foo(a:int=1, *, b, c=None, **kwargs) -> 42: |
| 1894 | pass |
| 1895 | self.assertEqual(str(inspect.signature(foo)), |
| 1896 | '(a:int=1, *, b, c=None, **kwargs) -> 42') |
| 1897 | |
| 1898 | def foo(a:int=1, *args, b, c=None, **kwargs) -> 42: |
| 1899 | pass |
| 1900 | self.assertEqual(str(inspect.signature(foo)), |
| 1901 | '(a:int=1, *args, b, c=None, **kwargs) -> 42') |
| 1902 | |
| 1903 | def foo(): |
| 1904 | pass |
| 1905 | self.assertEqual(str(inspect.signature(foo)), '()') |
| 1906 | |
| 1907 | def test_signature_str_positional_only(self): |
| 1908 | P = inspect.Parameter |
| 1909 | |
| 1910 | def test(a_po, *, b, **kwargs): |
| 1911 | return a_po, kwargs |
| 1912 | |
| 1913 | sig = inspect.signature(test) |
| 1914 | new_params = list(sig.parameters.values()) |
| 1915 | new_params[0] = new_params[0].replace(kind=P.POSITIONAL_ONLY) |
| 1916 | test.__signature__ = sig.replace(parameters=new_params) |
| 1917 | |
| 1918 | self.assertEqual(str(inspect.signature(test)), |
| 1919 | '(<a_po>, *, b, **kwargs)') |
| 1920 | |
| 1921 | sig = inspect.signature(test) |
| 1922 | new_params = list(sig.parameters.values()) |
| 1923 | new_params[0] = new_params[0].replace(name=None) |
| 1924 | test.__signature__ = sig.replace(parameters=new_params) |
| 1925 | self.assertEqual(str(inspect.signature(test)), |
| 1926 | '(<0>, *, b, **kwargs)') |
| 1927 | |
| 1928 | def test_signature_replace_anno(self): |
| 1929 | def test() -> 42: |
| 1930 | pass |
| 1931 | |
| 1932 | sig = inspect.signature(test) |
| 1933 | sig = sig.replace(return_annotation=None) |
| 1934 | self.assertIs(sig.return_annotation, None) |
| 1935 | sig = sig.replace(return_annotation=sig.empty) |
| 1936 | self.assertIs(sig.return_annotation, sig.empty) |
| 1937 | sig = sig.replace(return_annotation=42) |
| 1938 | self.assertEqual(sig.return_annotation, 42) |
| 1939 | self.assertEqual(sig, inspect.signature(test)) |
| 1940 | |
| 1941 | |
| 1942 | class TestParameterObject(unittest.TestCase): |
| 1943 | def test_signature_parameter_kinds(self): |
| 1944 | P = inspect.Parameter |
| 1945 | self.assertTrue(P.POSITIONAL_ONLY < P.POSITIONAL_OR_KEYWORD < \ |
| 1946 | P.VAR_POSITIONAL < P.KEYWORD_ONLY < P.VAR_KEYWORD) |
| 1947 | |
| 1948 | self.assertEqual(str(P.POSITIONAL_ONLY), 'POSITIONAL_ONLY') |
| 1949 | self.assertTrue('POSITIONAL_ONLY' in repr(P.POSITIONAL_ONLY)) |
| 1950 | |
| 1951 | def test_signature_parameter_object(self): |
| 1952 | p = inspect.Parameter('foo', default=10, |
| 1953 | kind=inspect.Parameter.POSITIONAL_ONLY) |
| 1954 | self.assertEqual(p.name, 'foo') |
| 1955 | self.assertEqual(p.default, 10) |
| 1956 | self.assertIs(p.annotation, p.empty) |
| 1957 | self.assertEqual(p.kind, inspect.Parameter.POSITIONAL_ONLY) |
| 1958 | |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 1959 | with self.assertRaisesRegex(ValueError, 'invalid value'): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 1960 | inspect.Parameter('foo', default=10, kind='123') |
| 1961 | |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 1962 | with self.assertRaisesRegex(ValueError, 'not a valid parameter name'): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 1963 | inspect.Parameter('1', kind=inspect.Parameter.VAR_KEYWORD) |
| 1964 | |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 1965 | with self.assertRaisesRegex(ValueError, |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 1966 | 'non-positional-only parameter'): |
| 1967 | inspect.Parameter(None, kind=inspect.Parameter.VAR_KEYWORD) |
| 1968 | |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 1969 | with self.assertRaisesRegex(ValueError, 'cannot have default values'): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 1970 | inspect.Parameter('a', default=42, |
| 1971 | kind=inspect.Parameter.VAR_KEYWORD) |
| 1972 | |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 1973 | with self.assertRaisesRegex(ValueError, 'cannot have default values'): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 1974 | inspect.Parameter('a', default=42, |
| 1975 | kind=inspect.Parameter.VAR_POSITIONAL) |
| 1976 | |
| 1977 | p = inspect.Parameter('a', default=42, |
| 1978 | kind=inspect.Parameter.POSITIONAL_OR_KEYWORD) |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 1979 | with self.assertRaisesRegex(ValueError, 'cannot have default values'): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 1980 | p.replace(kind=inspect.Parameter.VAR_POSITIONAL) |
| 1981 | |
| 1982 | self.assertTrue(repr(p).startswith('<Parameter')) |
| 1983 | |
| 1984 | def test_signature_parameter_equality(self): |
| 1985 | P = inspect.Parameter |
| 1986 | p = P('foo', default=42, kind=inspect.Parameter.KEYWORD_ONLY) |
| 1987 | |
| 1988 | self.assertEqual(p, p) |
| 1989 | self.assertNotEqual(p, 42) |
| 1990 | |
| 1991 | self.assertEqual(p, P('foo', default=42, |
| 1992 | kind=inspect.Parameter.KEYWORD_ONLY)) |
| 1993 | |
| 1994 | def test_signature_parameter_unhashable(self): |
| 1995 | p = inspect.Parameter('foo', default=42, |
| 1996 | kind=inspect.Parameter.KEYWORD_ONLY) |
| 1997 | |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 1998 | with self.assertRaisesRegex(TypeError, 'unhashable type'): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 1999 | hash(p) |
| 2000 | |
| 2001 | def test_signature_parameter_replace(self): |
| 2002 | p = inspect.Parameter('foo', default=42, |
| 2003 | kind=inspect.Parameter.KEYWORD_ONLY) |
| 2004 | |
| 2005 | self.assertIsNot(p, p.replace()) |
| 2006 | self.assertEqual(p, p.replace()) |
| 2007 | |
| 2008 | p2 = p.replace(annotation=1) |
| 2009 | self.assertEqual(p2.annotation, 1) |
| 2010 | p2 = p2.replace(annotation=p2.empty) |
| 2011 | self.assertEqual(p, p2) |
| 2012 | |
| 2013 | p2 = p2.replace(name='bar') |
| 2014 | self.assertEqual(p2.name, 'bar') |
| 2015 | self.assertNotEqual(p2, p) |
| 2016 | |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 2017 | with self.assertRaisesRegex(ValueError, 'not a valid parameter name'): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 2018 | p2 = p2.replace(name=p2.empty) |
| 2019 | |
| 2020 | p2 = p2.replace(name='foo', default=None) |
| 2021 | self.assertIs(p2.default, None) |
| 2022 | self.assertNotEqual(p2, p) |
| 2023 | |
| 2024 | p2 = p2.replace(name='foo', default=p2.empty) |
| 2025 | self.assertIs(p2.default, p2.empty) |
| 2026 | |
| 2027 | |
| 2028 | p2 = p2.replace(default=42, kind=p2.POSITIONAL_OR_KEYWORD) |
| 2029 | self.assertEqual(p2.kind, p2.POSITIONAL_OR_KEYWORD) |
| 2030 | self.assertNotEqual(p2, p) |
| 2031 | |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 2032 | with self.assertRaisesRegex(ValueError, 'invalid value for'): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 2033 | p2 = p2.replace(kind=p2.empty) |
| 2034 | |
| 2035 | p2 = p2.replace(kind=p2.KEYWORD_ONLY) |
| 2036 | self.assertEqual(p2, p) |
| 2037 | |
| 2038 | def test_signature_parameter_positional_only(self): |
| 2039 | p = inspect.Parameter(None, kind=inspect.Parameter.POSITIONAL_ONLY) |
| 2040 | self.assertEqual(str(p), '<>') |
| 2041 | |
| 2042 | p = p.replace(name='1') |
| 2043 | self.assertEqual(str(p), '<1>') |
| 2044 | |
| 2045 | def test_signature_parameter_immutability(self): |
| 2046 | p = inspect.Parameter(None, kind=inspect.Parameter.POSITIONAL_ONLY) |
| 2047 | |
| 2048 | with self.assertRaises(AttributeError): |
| 2049 | p.foo = 'bar' |
| 2050 | |
| 2051 | with self.assertRaises(AttributeError): |
| 2052 | p.kind = 123 |
| 2053 | |
| 2054 | |
| 2055 | class TestSignatureBind(unittest.TestCase): |
| 2056 | @staticmethod |
| 2057 | def call(func, *args, **kwargs): |
| 2058 | sig = inspect.signature(func) |
| 2059 | ba = sig.bind(*args, **kwargs) |
| 2060 | return func(*ba.args, **ba.kwargs) |
| 2061 | |
| 2062 | def test_signature_bind_empty(self): |
| 2063 | def test(): |
| 2064 | return 42 |
| 2065 | |
| 2066 | self.assertEqual(self.call(test), 42) |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 2067 | with self.assertRaisesRegex(TypeError, 'too many positional arguments'): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 2068 | self.call(test, 1) |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 2069 | with self.assertRaisesRegex(TypeError, 'too many positional arguments'): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 2070 | self.call(test, 1, spam=10) |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 2071 | with self.assertRaisesRegex(TypeError, 'too many keyword arguments'): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 2072 | self.call(test, spam=1) |
| 2073 | |
| 2074 | def test_signature_bind_var(self): |
| 2075 | def test(*args, **kwargs): |
| 2076 | return args, kwargs |
| 2077 | |
| 2078 | self.assertEqual(self.call(test), ((), {})) |
| 2079 | self.assertEqual(self.call(test, 1), ((1,), {})) |
| 2080 | self.assertEqual(self.call(test, 1, 2), ((1, 2), {})) |
| 2081 | self.assertEqual(self.call(test, foo='bar'), ((), {'foo': 'bar'})) |
| 2082 | self.assertEqual(self.call(test, 1, foo='bar'), ((1,), {'foo': 'bar'})) |
| 2083 | self.assertEqual(self.call(test, args=10), ((), {'args': 10})) |
| 2084 | self.assertEqual(self.call(test, 1, 2, foo='bar'), |
| 2085 | ((1, 2), {'foo': 'bar'})) |
| 2086 | |
| 2087 | def test_signature_bind_just_args(self): |
| 2088 | def test(a, b, c): |
| 2089 | return a, b, c |
| 2090 | |
| 2091 | self.assertEqual(self.call(test, 1, 2, 3), (1, 2, 3)) |
| 2092 | |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 2093 | with self.assertRaisesRegex(TypeError, 'too many positional arguments'): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 2094 | self.call(test, 1, 2, 3, 4) |
| 2095 | |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 2096 | with self.assertRaisesRegex(TypeError, "'b' parameter lacking default"): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 2097 | self.call(test, 1) |
| 2098 | |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 2099 | with self.assertRaisesRegex(TypeError, "'a' parameter lacking default"): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 2100 | self.call(test) |
| 2101 | |
| 2102 | def test(a, b, c=10): |
| 2103 | return a, b, c |
| 2104 | self.assertEqual(self.call(test, 1, 2, 3), (1, 2, 3)) |
| 2105 | self.assertEqual(self.call(test, 1, 2), (1, 2, 10)) |
| 2106 | |
| 2107 | def test(a=1, b=2, c=3): |
| 2108 | return a, b, c |
| 2109 | self.assertEqual(self.call(test, a=10, c=13), (10, 2, 13)) |
| 2110 | self.assertEqual(self.call(test, a=10), (10, 2, 3)) |
| 2111 | self.assertEqual(self.call(test, b=10), (1, 10, 3)) |
| 2112 | |
| 2113 | def test_signature_bind_varargs_order(self): |
| 2114 | def test(*args): |
| 2115 | return args |
| 2116 | |
| 2117 | self.assertEqual(self.call(test), ()) |
| 2118 | self.assertEqual(self.call(test, 1, 2, 3), (1, 2, 3)) |
| 2119 | |
| 2120 | def test_signature_bind_args_and_varargs(self): |
| 2121 | def test(a, b, c=3, *args): |
| 2122 | return a, b, c, args |
| 2123 | |
| 2124 | self.assertEqual(self.call(test, 1, 2, 3, 4, 5), (1, 2, 3, (4, 5))) |
| 2125 | self.assertEqual(self.call(test, 1, 2), (1, 2, 3, ())) |
| 2126 | self.assertEqual(self.call(test, b=1, a=2), (2, 1, 3, ())) |
| 2127 | self.assertEqual(self.call(test, 1, b=2), (1, 2, 3, ())) |
| 2128 | |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 2129 | with self.assertRaisesRegex(TypeError, |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 2130 | "multiple values for argument 'c'"): |
| 2131 | self.call(test, 1, 2, 3, c=4) |
| 2132 | |
| 2133 | def test_signature_bind_just_kwargs(self): |
| 2134 | def test(**kwargs): |
| 2135 | return kwargs |
| 2136 | |
| 2137 | self.assertEqual(self.call(test), {}) |
| 2138 | self.assertEqual(self.call(test, foo='bar', spam='ham'), |
| 2139 | {'foo': 'bar', 'spam': 'ham'}) |
| 2140 | |
| 2141 | def test_signature_bind_args_and_kwargs(self): |
| 2142 | def test(a, b, c=3, **kwargs): |
| 2143 | return a, b, c, kwargs |
| 2144 | |
| 2145 | self.assertEqual(self.call(test, 1, 2), (1, 2, 3, {})) |
| 2146 | self.assertEqual(self.call(test, 1, 2, foo='bar', spam='ham'), |
| 2147 | (1, 2, 3, {'foo': 'bar', 'spam': 'ham'})) |
| 2148 | self.assertEqual(self.call(test, b=2, a=1, foo='bar', spam='ham'), |
| 2149 | (1, 2, 3, {'foo': 'bar', 'spam': 'ham'})) |
| 2150 | self.assertEqual(self.call(test, a=1, b=2, foo='bar', spam='ham'), |
| 2151 | (1, 2, 3, {'foo': 'bar', 'spam': 'ham'})) |
| 2152 | self.assertEqual(self.call(test, 1, b=2, foo='bar', spam='ham'), |
| 2153 | (1, 2, 3, {'foo': 'bar', 'spam': 'ham'})) |
| 2154 | self.assertEqual(self.call(test, 1, b=2, c=4, foo='bar', spam='ham'), |
| 2155 | (1, 2, 4, {'foo': 'bar', 'spam': 'ham'})) |
| 2156 | self.assertEqual(self.call(test, 1, 2, 4, foo='bar'), |
| 2157 | (1, 2, 4, {'foo': 'bar'})) |
| 2158 | self.assertEqual(self.call(test, c=5, a=4, b=3), |
| 2159 | (4, 3, 5, {})) |
| 2160 | |
| 2161 | def test_signature_bind_kwonly(self): |
| 2162 | def test(*, foo): |
| 2163 | return foo |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 2164 | with self.assertRaisesRegex(TypeError, |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 2165 | 'too many positional arguments'): |
| 2166 | self.call(test, 1) |
| 2167 | self.assertEqual(self.call(test, foo=1), 1) |
| 2168 | |
| 2169 | def test(a, *, foo=1, bar): |
| 2170 | return foo |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 2171 | with self.assertRaisesRegex(TypeError, |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 2172 | "'bar' parameter lacking default value"): |
| 2173 | self.call(test, 1) |
| 2174 | |
| 2175 | def test(foo, *, bar): |
| 2176 | return foo, bar |
| 2177 | self.assertEqual(self.call(test, 1, bar=2), (1, 2)) |
| 2178 | self.assertEqual(self.call(test, bar=2, foo=1), (1, 2)) |
| 2179 | |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 2180 | with self.assertRaisesRegex(TypeError, |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 2181 | 'too many keyword arguments'): |
| 2182 | self.call(test, bar=2, foo=1, spam=10) |
| 2183 | |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 2184 | with self.assertRaisesRegex(TypeError, |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 2185 | 'too many positional arguments'): |
| 2186 | self.call(test, 1, 2) |
| 2187 | |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 2188 | with self.assertRaisesRegex(TypeError, |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 2189 | 'too many positional arguments'): |
| 2190 | self.call(test, 1, 2, bar=2) |
| 2191 | |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 2192 | with self.assertRaisesRegex(TypeError, |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 2193 | 'too many keyword arguments'): |
| 2194 | self.call(test, 1, bar=2, spam='ham') |
| 2195 | |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 2196 | with self.assertRaisesRegex(TypeError, |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 2197 | "'bar' parameter lacking default value"): |
| 2198 | self.call(test, 1) |
| 2199 | |
| 2200 | def test(foo, *, bar, **bin): |
| 2201 | return foo, bar, bin |
| 2202 | self.assertEqual(self.call(test, 1, bar=2), (1, 2, {})) |
| 2203 | self.assertEqual(self.call(test, foo=1, bar=2), (1, 2, {})) |
| 2204 | self.assertEqual(self.call(test, 1, bar=2, spam='ham'), |
| 2205 | (1, 2, {'spam': 'ham'})) |
| 2206 | self.assertEqual(self.call(test, spam='ham', foo=1, bar=2), |
| 2207 | (1, 2, {'spam': 'ham'})) |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 2208 | with self.assertRaisesRegex(TypeError, |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 2209 | "'foo' parameter lacking default value"): |
| 2210 | self.call(test, spam='ham', bar=2) |
| 2211 | self.assertEqual(self.call(test, 1, bar=2, bin=1, spam=10), |
| 2212 | (1, 2, {'bin': 1, 'spam': 10})) |
| 2213 | |
| 2214 | def test_signature_bind_arguments(self): |
| 2215 | def test(a, *args, b, z=100, **kwargs): |
| 2216 | pass |
| 2217 | sig = inspect.signature(test) |
| 2218 | ba = sig.bind(10, 20, b=30, c=40, args=50, kwargs=60) |
| 2219 | # we won't have 'z' argument in the bound arguments object, as we didn't |
| 2220 | # pass it to the 'bind' |
| 2221 | self.assertEqual(tuple(ba.arguments.items()), |
| 2222 | (('a', 10), ('args', (20,)), ('b', 30), |
| 2223 | ('kwargs', {'c': 40, 'args': 50, 'kwargs': 60}))) |
| 2224 | self.assertEqual(ba.kwargs, |
| 2225 | {'b': 30, 'c': 40, 'args': 50, 'kwargs': 60}) |
| 2226 | self.assertEqual(ba.args, (10, 20)) |
| 2227 | |
| 2228 | def test_signature_bind_positional_only(self): |
| 2229 | P = inspect.Parameter |
| 2230 | |
| 2231 | def test(a_po, b_po, c_po=3, foo=42, *, bar=50, **kwargs): |
| 2232 | return a_po, b_po, c_po, foo, bar, kwargs |
| 2233 | |
| 2234 | sig = inspect.signature(test) |
| 2235 | new_params = collections.OrderedDict(tuple(sig.parameters.items())) |
| 2236 | for name in ('a_po', 'b_po', 'c_po'): |
| 2237 | new_params[name] = new_params[name].replace(kind=P.POSITIONAL_ONLY) |
| 2238 | new_sig = sig.replace(parameters=new_params.values()) |
| 2239 | test.__signature__ = new_sig |
| 2240 | |
| 2241 | self.assertEqual(self.call(test, 1, 2, 4, 5, bar=6), |
| 2242 | (1, 2, 4, 5, 6, {})) |
| 2243 | |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 2244 | with self.assertRaisesRegex(TypeError, "parameter is positional only"): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 2245 | self.call(test, 1, 2, c_po=4) |
| 2246 | |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 2247 | with self.assertRaisesRegex(TypeError, "parameter is positional only"): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 2248 | self.call(test, a_po=1, b_po=2) |
| 2249 | |
Antoine Pitrou | bd41d1b | 2013-01-29 21:20:57 +0100 | [diff] [blame] | 2250 | def test_signature_bind_with_self_arg(self): |
| 2251 | # Issue #17071: one of the parameters is named "self |
| 2252 | def test(a, self, b): |
| 2253 | pass |
| 2254 | sig = inspect.signature(test) |
| 2255 | ba = sig.bind(1, 2, 3) |
| 2256 | self.assertEqual(ba.args, (1, 2, 3)) |
| 2257 | ba = sig.bind(1, self=2, b=3) |
| 2258 | self.assertEqual(ba.args, (1, 2, 3)) |
| 2259 | |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 2260 | |
| 2261 | class TestBoundArguments(unittest.TestCase): |
| 2262 | def test_signature_bound_arguments_unhashable(self): |
| 2263 | def foo(a): pass |
| 2264 | ba = inspect.signature(foo).bind(1) |
| 2265 | |
Antoine Pitrou | 46cb1ef | 2012-06-23 18:11:59 +0200 | [diff] [blame] | 2266 | with self.assertRaisesRegex(TypeError, 'unhashable type'): |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 2267 | hash(ba) |
| 2268 | |
| 2269 | def test_signature_bound_arguments_equality(self): |
| 2270 | def foo(a): pass |
| 2271 | ba = inspect.signature(foo).bind(1) |
| 2272 | self.assertEqual(ba, ba) |
| 2273 | |
| 2274 | ba2 = inspect.signature(foo).bind(1) |
| 2275 | self.assertEqual(ba, ba2) |
| 2276 | |
| 2277 | ba3 = inspect.signature(foo).bind(2) |
| 2278 | self.assertNotEqual(ba, ba3) |
| 2279 | ba3.arguments['a'] = 1 |
| 2280 | self.assertEqual(ba, ba3) |
| 2281 | |
| 2282 | def bar(b): pass |
| 2283 | ba4 = inspect.signature(bar).bind(1) |
| 2284 | self.assertNotEqual(ba, ba4) |
| 2285 | |
| 2286 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 2287 | def test_main(): |
Benjamin Peterson | 25cd7eb | 2010-03-30 18:42:32 +0000 | [diff] [blame] | 2288 | run_unittest( |
| 2289 | TestDecorators, TestRetrievingSourceCode, TestOneliners, TestBuggyCases, |
| 2290 | TestInterpreterStack, TestClassesAndFunctions, TestPredicates, |
| 2291 | TestGetcallargsFunctions, TestGetcallargsMethods, |
Alexander Belopolsky | f546e70 | 2010-12-02 00:10:11 +0000 | [diff] [blame] | 2292 | TestGetcallargsUnboundMethods, TestGetattrStatic, TestGetGeneratorState, |
Larry Hastings | 7c7cbfc | 2012-06-22 15:19:35 -0700 | [diff] [blame] | 2293 | TestNoEOL, TestSignatureObject, TestSignatureBind, TestParameterObject, |
Nick Coghlan | 2f92e54 | 2012-06-23 19:39:55 +1000 | [diff] [blame] | 2294 | TestBoundArguments, TestGetClosureVars |
Michael Foord | 95fc51d | 2010-11-20 15:07:30 +0000 | [diff] [blame] | 2295 | ) |
Martin v. Löwis | 893ffa4 | 2003-10-31 15:35:53 +0000 | [diff] [blame] | 2296 | |
Johannes Gijsbers | cb9015d | 2004-12-12 16:20:22 +0000 | [diff] [blame] | 2297 | if __name__ == "__main__": |
| 2298 | test_main() |