cpython-lru_cache-weakref: Lib/test/test

annotate Lib/test/test_isinstance.py @ 70817:dd775b1561ba

Fix markup.

author	Georg Brandl <georg@python.org>
date	Tue, 14 Jun 2011 21:09:55 +0200
parents	3a0e7000dc8f
children	07488c3c85f1

rev	line source
23262 7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	1 # Tests some corner cases with isinstance() and issubclass(). While these
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	2 # tests use new style classes and properties, they actually do whitebox
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	3 # testing of error conditions uncovered when using extension types.
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	4
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	5 import unittest
47201 9c930a32cebb #2621 rename test.test_support to test.support Benjamin Peterson <benjamin@python.org> parents: 43577 diff changeset	6 from test import support
31723 d69fb35f1eae Limit the nesting depth of a tuple passed as the second argument to Brett Cannon <bcannon@gmail.com> parents: 28917 diff changeset	7 import sys
23262 7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	8
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	9
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	10
23265 8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	11 class TestIsInstanceExceptions(unittest.TestCase):
23262 7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	12 # Test to make sure that an AttributeError when accessing the instance's
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	13 # class's bases is masked. This was actually a bug in Python 2.2 and
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	14 # 2.2.1 where the exception wasn't caught but it also wasn't being cleared
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	15 # (leading to an "undetected error" in the debug build). Set up is,
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	16 # isinstance(inst, cls) where:
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	17 #
41986 6464cc638faa Merged revisions 55795-55816 via svnmerge from Guido van Rossum <guido@python.org> parents: 41821 diff changeset	18 # - cls isn't a a type, or a tuple
23262 7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	19 # - cls has a __bases__ attribute
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	20 # - inst has a __class__ attribute
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	21 # - inst.__class__ as no __bases__ attribute
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	22 #
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	23 # Sounds complicated, I know, but this mimics a situation where an
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	24 # extension type raises an AttributeError when its __bases__ attribute is
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	25 # gotten. In that case, isinstance() should return False.
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	26 def test_class_has_no_bases(self):
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	27 class I(object):
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	28 def getclass(self):
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	29 # This must return an object that has no __bases__ attribute
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	30 return None
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	31 __class__ = property(getclass)
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	32
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	33 class C(object):
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	34 def getbases(self):
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	35 return ()
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	36 __bases__ = property(getbases)
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	37
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	38 self.assertEqual(False, isinstance(I(), C()))
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	39
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	40 # Like above except that inst.__class__.__bases__ raises an exception
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	41 # other than AttributeError
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	42 def test_bases_raises_other_than_attribute_error(self):
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	43 class E(object):
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	44 def getbases(self):
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	45 raise RuntimeError
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	46 __bases__ = property(getbases)
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	47
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	48 class I(object):
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	49 def getclass(self):
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	50 return E()
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	51 __class__ = property(getclass)
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	52
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	53 class C(object):
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	54 def getbases(self):
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	55 return ()
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	56 __bases__ = property(getbases)
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	57
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	58 self.assertRaises(RuntimeError, isinstance, I(), C())
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	59
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	60 # Here's a situation where getattr(cls, '__bases__') raises an exception.
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	61 # If that exception is not AttributeError, it should not get masked
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	62 def test_dont_mask_non_attribute_error(self):
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	63 class I: pass
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	64
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	65 class C(object):
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	66 def getbases(self):
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	67 raise RuntimeError
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	68 __bases__ = property(getbases)
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	69
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	70 self.assertRaises(RuntimeError, isinstance, I(), C())
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	71
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	72 # Like above, except that getattr(cls, '__bases__') raises an
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	73 # AttributeError, which /should/ get masked as a TypeError
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	74 def test_mask_attribute_error(self):
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	75 class I: pass
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	76
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	77 class C(object):
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	78 def getbases(self):
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	79 raise AttributeError
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	80 __bases__ = property(getbases)
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	81
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	82 self.assertRaises(TypeError, isinstance, I(), C())
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	83
66291 80b48a3a2473 #1574217: only swallow AttributeErrors in isinstance, not everything. R. David Murray <rdmurray@bitdance.com> parents: 47201 diff changeset	84 # check that we don't mask non AttributeErrors
80b48a3a2473 #1574217: only swallow AttributeErrors in isinstance, not everything. R. David Murray <rdmurray@bitdance.com> parents: 47201 diff changeset	85 # see: http://bugs.python.org/issue1574217
80b48a3a2473 #1574217: only swallow AttributeErrors in isinstance, not everything. R. David Murray <rdmurray@bitdance.com> parents: 47201 diff changeset	86 def test_isinstance_dont_mask_non_attribute_error(self):
80b48a3a2473 #1574217: only swallow AttributeErrors in isinstance, not everything. R. David Murray <rdmurray@bitdance.com> parents: 47201 diff changeset	87 class C(object):
80b48a3a2473 #1574217: only swallow AttributeErrors in isinstance, not everything. R. David Murray <rdmurray@bitdance.com> parents: 47201 diff changeset	88 def getclass(self):
66298 3a0e7000dc8f add space Benjamin Peterson <benjamin@python.org> parents: 66291 diff changeset	89 raise RuntimeError
3a0e7000dc8f add space Benjamin Peterson <benjamin@python.org> parents: 66291 diff changeset	90 __class__ = property(getclass)
66291 80b48a3a2473 #1574217: only swallow AttributeErrors in isinstance, not everything. R. David Murray <rdmurray@bitdance.com> parents: 47201 diff changeset	91
66298 3a0e7000dc8f add space Benjamin Peterson <benjamin@python.org> parents: 66291 diff changeset	92 c = C()
66291 80b48a3a2473 #1574217: only swallow AttributeErrors in isinstance, not everything. R. David Murray <rdmurray@bitdance.com> parents: 47201 diff changeset	93 self.assertRaises(RuntimeError, isinstance, c, bool)
80b48a3a2473 #1574217: only swallow AttributeErrors in isinstance, not everything. R. David Murray <rdmurray@bitdance.com> parents: 47201 diff changeset	94
80b48a3a2473 #1574217: only swallow AttributeErrors in isinstance, not everything. R. David Murray <rdmurray@bitdance.com> parents: 47201 diff changeset	95 # test another code path
80b48a3a2473 #1574217: only swallow AttributeErrors in isinstance, not everything. R. David Murray <rdmurray@bitdance.com> parents: 47201 diff changeset	96 class D: pass
80b48a3a2473 #1574217: only swallow AttributeErrors in isinstance, not everything. R. David Murray <rdmurray@bitdance.com> parents: 47201 diff changeset	97 self.assertRaises(RuntimeError, isinstance, c, D)
23262 7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	98
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	99
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	100 # These tests are similar to above, but tickle certain code paths in
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	101 # issubclass() instead of isinstance() -- really PyObject_IsSubclass()
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	102 # vs. PyObject_IsInstance().
23265 8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	103 class TestIsSubclassExceptions(unittest.TestCase):
23262 7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	104 def test_dont_mask_non_attribute_error(self):
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	105 class C(object):
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	106 def getbases(self):
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	107 raise RuntimeError
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	108 __bases__ = property(getbases)
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	109
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	110 class S(C): pass
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	111
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	112 self.assertRaises(RuntimeError, issubclass, C(), S())
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	113
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	114 def test_mask_attribute_error(self):
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	115 class C(object):
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	116 def getbases(self):
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	117 raise AttributeError
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	118 __bases__ = property(getbases)
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	119
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	120 class S(C): pass
23521 a90faa5f9417 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 23265 diff changeset	121
23262 7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	122 self.assertRaises(TypeError, issubclass, C(), S())
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	123
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	124 # Like above, but test the second branch, where the __bases__ of the
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	125 # second arg (the cls arg) is tested. This means the first arg must
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	126 # return a valid __bases__, and it's okay for it to be a normal --
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	127 # unrelated by inheritance -- class.
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	128 def test_dont_mask_non_attribute_error_in_cls_arg(self):
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	129 class B: pass
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	130
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	131 class C(object):
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	132 def getbases(self):
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	133 raise RuntimeError
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	134 __bases__ = property(getbases)
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	135
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	136 self.assertRaises(RuntimeError, issubclass, B, C())
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	137
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	138 def test_mask_attribute_error_in_cls_arg(self):
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	139 class B: pass
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	140
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	141 class C(object):
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	142 def getbases(self):
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	143 raise AttributeError
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	144 __bases__ = property(getbases)
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	145
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	146 self.assertRaises(TypeError, issubclass, B, C())
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	147
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	148
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	149
23265 8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	150 # meta classes for creating abstract classes and instances
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	151 class AbstractClass(object):
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	152 def __init__(self, bases):
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	153 self.bases = bases
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	154
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	155 def getbases(self):
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	156 return self.bases
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	157 __bases__ = property(getbases)
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	158
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	159 def __call__(self):
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	160 return AbstractInstance(self)
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	161
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	162 class AbstractInstance(object):
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	163 def __init__(self, klass):
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	164 self.klass = klass
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	165
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	166 def getclass(self):
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	167 return self.klass
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	168 __class__ = property(getclass)
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	169
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	170 # abstract classes
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	171 AbstractSuper = AbstractClass(bases=())
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	172
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	173 AbstractChild = AbstractClass(bases=(AbstractSuper,))
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	174
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	175 # normal classes
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	176 class Super:
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	177 pass
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	178
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	179 class Child(Super):
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	180 pass
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	181
26622 19507a1d0254 Change issubclass() so that recursive tuples (directly or indirectly Walter Dörwald <walter@livinglogic.de> parents: 26612 diff changeset	182 # new-style classes
19507a1d0254 Change issubclass() so that recursive tuples (directly or indirectly Walter Dörwald <walter@livinglogic.de> parents: 26612 diff changeset	183 class NewSuper(object):
19507a1d0254 Change issubclass() so that recursive tuples (directly or indirectly Walter Dörwald <walter@livinglogic.de> parents: 26612 diff changeset	184 pass
19507a1d0254 Change issubclass() so that recursive tuples (directly or indirectly Walter Dörwald <walter@livinglogic.de> parents: 26612 diff changeset	185
19507a1d0254 Change issubclass() so that recursive tuples (directly or indirectly Walter Dörwald <walter@livinglogic.de> parents: 26612 diff changeset	186 class NewChild(NewSuper):
19507a1d0254 Change issubclass() so that recursive tuples (directly or indirectly Walter Dörwald <walter@livinglogic.de> parents: 26612 diff changeset	187 pass
19507a1d0254 Change issubclass() so that recursive tuples (directly or indirectly Walter Dörwald <walter@livinglogic.de> parents: 26612 diff changeset	188
23265 8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	189
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	190
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	191 class TestIsInstanceIsSubclass(unittest.TestCase):
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	192 # Tests to ensure that isinstance and issubclass work on abstract
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	193 # classes and instances. Before the 2.2 release, TypeErrors were
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	194 # raised when boolean values should have been returned. The bug was
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	195 # triggered by mixing 'normal' classes and instances were with
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	196 # 'abstract' classes and instances. This case tries to test all
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	197 # combinations.
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	198
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	199 def test_isinstance_normal(self):
23521 a90faa5f9417 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 23265 diff changeset	200 # normal instances
23265 8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	201 self.assertEqual(True, isinstance(Super(), Super))
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	202 self.assertEqual(False, isinstance(Super(), Child))
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	203 self.assertEqual(False, isinstance(Super(), AbstractSuper))
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	204 self.assertEqual(False, isinstance(Super(), AbstractChild))
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	205
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	206 self.assertEqual(True, isinstance(Child(), Super))
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	207 self.assertEqual(False, isinstance(Child(), AbstractSuper))
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	208
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	209 def test_isinstance_abstract(self):
23521 a90faa5f9417 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 23265 diff changeset	210 # abstract instances
23265 8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	211 self.assertEqual(True, isinstance(AbstractSuper(), AbstractSuper))
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	212 self.assertEqual(False, isinstance(AbstractSuper(), AbstractChild))
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	213 self.assertEqual(False, isinstance(AbstractSuper(), Super))
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	214 self.assertEqual(False, isinstance(AbstractSuper(), Child))
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	215
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	216 self.assertEqual(True, isinstance(AbstractChild(), AbstractChild))
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	217 self.assertEqual(True, isinstance(AbstractChild(), AbstractSuper))
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	218 self.assertEqual(False, isinstance(AbstractChild(), Super))
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	219 self.assertEqual(False, isinstance(AbstractChild(), Child))
23521 a90faa5f9417 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 23265 diff changeset	220
23265 8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	221 def test_subclass_normal(self):
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	222 # normal classes
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	223 self.assertEqual(True, issubclass(Super, Super))
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	224 self.assertEqual(False, issubclass(Super, AbstractSuper))
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	225 self.assertEqual(False, issubclass(Super, Child))
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	226
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	227 self.assertEqual(True, issubclass(Child, Child))
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	228 self.assertEqual(True, issubclass(Child, Super))
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	229 self.assertEqual(False, issubclass(Child, AbstractSuper))
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	230
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	231 def test_subclass_abstract(self):
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	232 # abstract classes
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	233 self.assertEqual(True, issubclass(AbstractSuper, AbstractSuper))
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	234 self.assertEqual(False, issubclass(AbstractSuper, AbstractChild))
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	235 self.assertEqual(False, issubclass(AbstractSuper, Child))
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	236
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	237 self.assertEqual(True, issubclass(AbstractChild, AbstractChild))
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	238 self.assertEqual(True, issubclass(AbstractChild, AbstractSuper))
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	239 self.assertEqual(False, issubclass(AbstractChild, Super))
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	240 self.assertEqual(False, issubclass(AbstractChild, Child))
23521 a90faa5f9417 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 23265 diff changeset	241
26612 97f83542f8ee Enhance issubclass() and PyObject_IsSubclass() so that a tuple is Walter Dörwald <walter@livinglogic.de> parents: 24364 diff changeset	242 def test_subclass_tuple(self):
97f83542f8ee Enhance issubclass() and PyObject_IsSubclass() so that a tuple is Walter Dörwald <walter@livinglogic.de> parents: 24364 diff changeset	243 # test with a tuple as the second argument classes
97f83542f8ee Enhance issubclass() and PyObject_IsSubclass() so that a tuple is Walter Dörwald <walter@livinglogic.de> parents: 24364 diff changeset	244 self.assertEqual(True, issubclass(Child, (Child,)))
97f83542f8ee Enhance issubclass() and PyObject_IsSubclass() so that a tuple is Walter Dörwald <walter@livinglogic.de> parents: 24364 diff changeset	245 self.assertEqual(True, issubclass(Child, (Super,)))
97f83542f8ee Enhance issubclass() and PyObject_IsSubclass() so that a tuple is Walter Dörwald <walter@livinglogic.de> parents: 24364 diff changeset	246 self.assertEqual(False, issubclass(Super, (Child,)))
97f83542f8ee Enhance issubclass() and PyObject_IsSubclass() so that a tuple is Walter Dörwald <walter@livinglogic.de> parents: 24364 diff changeset	247 self.assertEqual(True, issubclass(Super, (Child, Super)))
97f83542f8ee Enhance issubclass() and PyObject_IsSubclass() so that a tuple is Walter Dörwald <walter@livinglogic.de> parents: 24364 diff changeset	248 self.assertEqual(False, issubclass(Child, ()))
26622 19507a1d0254 Change issubclass() so that recursive tuples (directly or indirectly Walter Dörwald <walter@livinglogic.de> parents: 26612 diff changeset	249 self.assertEqual(True, issubclass(Super, (Child, (Super,))))
19507a1d0254 Change issubclass() so that recursive tuples (directly or indirectly Walter Dörwald <walter@livinglogic.de> parents: 26612 diff changeset	250
19507a1d0254 Change issubclass() so that recursive tuples (directly or indirectly Walter Dörwald <walter@livinglogic.de> parents: 26612 diff changeset	251 self.assertEqual(True, issubclass(NewChild, (NewChild,)))
19507a1d0254 Change issubclass() so that recursive tuples (directly or indirectly Walter Dörwald <walter@livinglogic.de> parents: 26612 diff changeset	252 self.assertEqual(True, issubclass(NewChild, (NewSuper,)))
19507a1d0254 Change issubclass() so that recursive tuples (directly or indirectly Walter Dörwald <walter@livinglogic.de> parents: 26612 diff changeset	253 self.assertEqual(False, issubclass(NewSuper, (NewChild,)))
19507a1d0254 Change issubclass() so that recursive tuples (directly or indirectly Walter Dörwald <walter@livinglogic.de> parents: 26612 diff changeset	254 self.assertEqual(True, issubclass(NewSuper, (NewChild, NewSuper)))
19507a1d0254 Change issubclass() so that recursive tuples (directly or indirectly Walter Dörwald <walter@livinglogic.de> parents: 26612 diff changeset	255 self.assertEqual(False, issubclass(NewChild, ()))
19507a1d0254 Change issubclass() so that recursive tuples (directly or indirectly Walter Dörwald <walter@livinglogic.de> parents: 26612 diff changeset	256 self.assertEqual(True, issubclass(NewSuper, (NewChild, (NewSuper,))))
19507a1d0254 Change issubclass() so that recursive tuples (directly or indirectly Walter Dörwald <walter@livinglogic.de> parents: 26612 diff changeset	257
40644 1c26505c1de6 Rip out 'long' and 'L'-suffixed integer literals. Guido van Rossum <guido@python.org> parents: 35309 diff changeset	258 self.assertEqual(True, issubclass(int, (int, (float, int))))
43577 ace45b361e87 Patch# 1258 by Christian Heimes: kill basestring. Guido van Rossum <guido@python.org> parents: 41986 diff changeset	259 self.assertEqual(True, issubclass(str, (str, (Child, NewChild, str))))
26612 97f83542f8ee Enhance issubclass() and PyObject_IsSubclass() so that a tuple is Walter Dörwald <walter@livinglogic.de> parents: 24364 diff changeset	260
31723 d69fb35f1eae Limit the nesting depth of a tuple passed as the second argument to Brett Cannon <bcannon@gmail.com> parents: 28917 diff changeset	261 def test_subclass_recursion_limit(self):
d69fb35f1eae Limit the nesting depth of a tuple passed as the second argument to Brett Cannon <bcannon@gmail.com> parents: 28917 diff changeset	262 # make sure that issubclass raises RuntimeError before the C stack is
d69fb35f1eae Limit the nesting depth of a tuple passed as the second argument to Brett Cannon <bcannon@gmail.com> parents: 28917 diff changeset	263 # blown
d69fb35f1eae Limit the nesting depth of a tuple passed as the second argument to Brett Cannon <bcannon@gmail.com> parents: 28917 diff changeset	264 self.assertRaises(RuntimeError, blowstack, issubclass, str, str)
23265 8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	265
31723 d69fb35f1eae Limit the nesting depth of a tuple passed as the second argument to Brett Cannon <bcannon@gmail.com> parents: 28917 diff changeset	266 def test_isinstance_recursion_limit(self):
d69fb35f1eae Limit the nesting depth of a tuple passed as the second argument to Brett Cannon <bcannon@gmail.com> parents: 28917 diff changeset	267 # make sure that issubclass raises RuntimeError before the C stack is
32538 4fab4a5cce2f Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 31723 diff changeset	268 # blown
31723 d69fb35f1eae Limit the nesting depth of a tuple passed as the second argument to Brett Cannon <bcannon@gmail.com> parents: 28917 diff changeset	269 self.assertRaises(RuntimeError, blowstack, isinstance, '', str)
d69fb35f1eae Limit the nesting depth of a tuple passed as the second argument to Brett Cannon <bcannon@gmail.com> parents: 28917 diff changeset	270
d69fb35f1eae Limit the nesting depth of a tuple passed as the second argument to Brett Cannon <bcannon@gmail.com> parents: 28917 diff changeset	271 def blowstack(fxn, arg, compare_to):
d69fb35f1eae Limit the nesting depth of a tuple passed as the second argument to Brett Cannon <bcannon@gmail.com> parents: 28917 diff changeset	272 # Make sure that calling isinstance with a deeply nested tuple for its
d69fb35f1eae Limit the nesting depth of a tuple passed as the second argument to Brett Cannon <bcannon@gmail.com> parents: 28917 diff changeset	273 # argument will raise RuntimeError eventually.
d69fb35f1eae Limit the nesting depth of a tuple passed as the second argument to Brett Cannon <bcannon@gmail.com> parents: 28917 diff changeset	274 tuple_arg = (compare_to,)
41642 a6eb6acfe04a Merged revisions 55007-55179 via svnmerge from Guido van Rossum <guido@python.org> parents: 41575 diff changeset	275 for cnt in range(sys.getrecursionlimit()+5):
31723 d69fb35f1eae Limit the nesting depth of a tuple passed as the second argument to Brett Cannon <bcannon@gmail.com> parents: 28917 diff changeset	276 tuple_arg = (tuple_arg,)
d69fb35f1eae Limit the nesting depth of a tuple passed as the second argument to Brett Cannon <bcannon@gmail.com> parents: 28917 diff changeset	277 fxn(arg, tuple_arg)
23265 8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	278
8d4b25ceeefe Add more tests for abstract isinstance() and issubclass(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 23262 diff changeset	279
23262 7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	280 def test_main():
47201 9c930a32cebb #2621 rename test.test_support to test.support Benjamin Peterson <benjamin@python.org> parents: 43577 diff changeset	281 support.run_unittest(
28917 1741af48fd9f Combine the functionality of test_support.run_unittest() Walter Dörwald <walter@livinglogic.de> parents: 26622 diff changeset	282 TestIsInstanceExceptions,
1741af48fd9f Combine the functionality of test_support.run_unittest() Walter Dörwald <walter@livinglogic.de> parents: 26622 diff changeset	283 TestIsSubclassExceptions,
1741af48fd9f Combine the functionality of test_support.run_unittest() Walter Dörwald <walter@livinglogic.de> parents: 26622 diff changeset	284 TestIsInstanceIsSubclass
1741af48fd9f Combine the functionality of test_support.run_unittest() Walter Dörwald <walter@livinglogic.de> parents: 26622 diff changeset	285 )
23262 7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	286
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	287
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	288 if __name__ == '__main__':
7353977d6b64 Unit tests for the changes in abstract.c version 2.101. The debug Barry Warsaw <barry@python.org> parents: diff changeset	289 test_main()

Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_isinstance.py @ 70817:dd775b1561ba