cpython-lru_cache-weakref: Lib/test/test

annotate Lib/test/test_isinstance.py @ 87690:66c1c9f32567 default tip

Add use_weakref option to functools.lru_cache The use_weakref option makes lru_cache create weak references to the function arguments when creating the cache key, which prevents them from staying in the memory forever even after all other references to them are gone. This is a proof of concept for http://bugs.python.org/issue19859

author	Radomir Dopieralski <devel@sheep.art.pl>
date	Tue, 03 Dec 2013 16:02:48 +0100
parents	07488c3c85f1
children

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 #
81772 07488c3c85f1 Fix a few typos and a double semicolon. Patch by Eitan Adler. Ezio Melotti <ezio.melotti@gmail.com> parents: 66298 diff changeset	18 # - cls isn't 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 @ 87690:66c1c9f32567 default tip