Python weakref.getweakrefcount() Examples

The following are 30 code examples of weakref.getweakrefcount(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module weakref , or try the search function .
Example #1
Source File: test_weakref.py    From gcblue with BSD 3-Clause "New" or "Revised" License 6 votes vote down vote up
def test_getweakrefcount(self):
        o = C()
        ref1 = weakref.ref(o)
        ref2 = weakref.ref(o, self.callback)
        self.assertEqual(weakref.getweakrefcount(o), 2,
                     "got wrong number of weak reference objects")

        proxy1 = weakref.proxy(o)
        proxy2 = weakref.proxy(o, self.callback)
        self.assertEqual(weakref.getweakrefcount(o), 4,
                     "got wrong number of weak reference objects")

        del ref1, ref2, proxy1, proxy2
        self.assertEqual(weakref.getweakrefcount(o), 0,
                     "weak reference objects not unlinked from"
                     " referent when discarded.")

        # assumes ints do not support weakrefs
        self.assertEqual(weakref.getweakrefcount(1), 0,
                     "got wrong number of weak reference objects for int") 
Example #2
Source File: test_weakref.py    From Fluid-Designer with GNU General Public License v3.0 6 votes vote down vote up
def test_ref_reuse(self):
        o = C()
        ref1 = weakref.ref(o)
        # create a proxy to make sure that there's an intervening creation
        # between these two; it should make no difference
        proxy = weakref.proxy(o)
        ref2 = weakref.ref(o)
        self.assertIs(ref1, ref2,
                     "reference object w/out callback should be re-used")

        o = C()
        proxy = weakref.proxy(o)
        ref1 = weakref.ref(o)
        ref2 = weakref.ref(o)
        self.assertIs(ref1, ref2,
                     "reference object w/out callback should be re-used")
        self.assertEqual(weakref.getweakrefcount(o), 2,
                     "wrong weak ref count for object")
        del proxy
        self.assertEqual(weakref.getweakrefcount(o), 1,
                     "wrong weak ref count for object after deleting proxy") 
Example #3
Source File: test_weakref.py    From Fluid-Designer with GNU General Public License v3.0 6 votes vote down vote up
def test_subclass_refs_dont_replace_standard_refs(self):
        class MyRef(weakref.ref):
            pass
        o = Object(42)
        r1 = MyRef(o)
        r2 = weakref.ref(o)
        self.assertIsNot(r1, r2)
        self.assertEqual(weakref.getweakrefs(o), [r2, r1])
        self.assertEqual(weakref.getweakrefcount(o), 2)
        r3 = MyRef(o)
        self.assertEqual(weakref.getweakrefcount(o), 3)
        refs = weakref.getweakrefs(o)
        self.assertEqual(len(refs), 3)
        self.assertIs(r2, refs[0])
        self.assertIn(r1, refs[1:])
        self.assertIn(r3, refs[1:]) 
Example #4
Source File: test_weakref.py    From CTFCrackTools-V2 with GNU General Public License v3.0 6 votes vote down vote up
def test_getweakrefcount(self):
        o = C()
        ref1 = weakref.ref(o)
        ref2 = weakref.ref(o, self.callback)
        self.assertTrue(weakref.getweakrefcount(o) == 2,
                     "got wrong number of weak reference objects")

        proxy1 = weakref.proxy(o)
        proxy2 = weakref.proxy(o, self.callback)
        self.assertTrue(weakref.getweakrefcount(o) == 4,
                     "got wrong number of weak reference objects")

        del ref1, ref2, proxy1, proxy2
        gc.collect()
        self.assertTrue(weakref.getweakrefcount(o) == 0,
                     "weak reference objects not unlinked from"
                     " referent when discarded.")

        # assumes ints do not support weakrefs
        self.assertTrue(weakref.getweakrefcount(1) == 0,
                     "got wrong number of weak reference objects for int") 
Example #5
Source File: test_weakref.py    From CTFCrackTools-V2 with GNU General Public License v3.0 6 votes vote down vote up
def test_ref_reuse(self):
        o = C()
        ref1 = weakref.ref(o)
        # create a proxy to make sure that there's an intervening creation
        # between these two; it should make no difference
        proxy = weakref.proxy(o)
        ref2 = weakref.ref(o)
        self.assertTrue(ref1 is ref2,
                     "reference object w/out callback should be re-used")

        o = C()
        proxy = weakref.proxy(o)
        ref1 = weakref.ref(o)
        ref2 = weakref.ref(o)
        self.assertTrue(ref1 is ref2,
                     "reference object w/out callback should be re-used")
        self.assertTrue(weakref.getweakrefcount(o) == 2,
                     "wrong weak ref count for object")
        del proxy
        gc.collect()
        self.assertTrue(weakref.getweakrefcount(o) == 1,
                     "wrong weak ref count for object after deleting proxy") 
Example #6
Source File: test_weakref.py    From ironpython3 with Apache License 2.0 6 votes vote down vote up
def test_ref_reuse(self):
        o = C()
        ref1 = weakref.ref(o)
        # create a proxy to make sure that there's an intervening creation
        # between these two; it should make no difference
        proxy = weakref.proxy(o)
        ref2 = weakref.ref(o)
        self.assertIs(ref1, ref2,
                     "reference object w/out callback should be re-used")

        o = C()
        proxy = weakref.proxy(o)
        ref1 = weakref.ref(o)
        ref2 = weakref.ref(o)
        self.assertIs(ref1, ref2,
                     "reference object w/out callback should be re-used")
        self.assertEqual(weakref.getweakrefcount(o), 2,
                     "wrong weak ref count for object")
        del proxy
        self.assertEqual(weakref.getweakrefcount(o), 1,
                     "wrong weak ref count for object after deleting proxy") 
Example #7
Source File: test_weakref.py    From ironpython3 with Apache License 2.0 6 votes vote down vote up
def test_getweakrefcount(self):
        o = C()
        ref1 = weakref.ref(o)
        ref2 = weakref.ref(o, self.callback)
        self.assertEqual(weakref.getweakrefcount(o), 2,
                     "got wrong number of weak reference objects")

        proxy1 = weakref.proxy(o)
        proxy2 = weakref.proxy(o, self.callback)
        self.assertEqual(weakref.getweakrefcount(o), 4,
                     "got wrong number of weak reference objects")

        del ref1, ref2, proxy1, proxy2
        self.assertEqual(weakref.getweakrefcount(o), 0,
                     "weak reference objects not unlinked from"
                     " referent when discarded.")

        # assumes ints do not support weakrefs
        self.assertEqual(weakref.getweakrefcount(1), 0,
                     "got wrong number of weak reference objects for int") 
Example #8
Source File: test_weakref.py    From ironpython3 with Apache License 2.0 6 votes vote down vote up
def test_subclass_refs_dont_replace_standard_refs(self):
        class MyRef(weakref.ref):
            pass
        o = Object(42)
        r1 = MyRef(o)
        r2 = weakref.ref(o)
        self.assertIsNot(r1, r2)
        self.assertEqual(weakref.getweakrefs(o), [r2, r1])
        self.assertEqual(weakref.getweakrefcount(o), 2)
        r3 = MyRef(o)
        self.assertEqual(weakref.getweakrefcount(o), 3)
        refs = weakref.getweakrefs(o)
        self.assertEqual(len(refs), 3)
        self.assertIs(r2, refs[0])
        self.assertIn(r1, refs[1:])
        self.assertIn(r3, refs[1:]) 
Example #9
Source File: test_weakref.py    From gcblue with BSD 3-Clause "New" or "Revised" License 6 votes vote down vote up
def test_ref_reuse(self):
        o = C()
        ref1 = weakref.ref(o)
        # create a proxy to make sure that there's an intervening creation
        # between these two; it should make no difference
        proxy = weakref.proxy(o)
        ref2 = weakref.ref(o)
        self.assertIs(ref1, ref2,
                     "reference object w/out callback should be re-used")

        o = C()
        proxy = weakref.proxy(o)
        ref1 = weakref.ref(o)
        ref2 = weakref.ref(o)
        self.assertIs(ref1, ref2,
                     "reference object w/out callback should be re-used")
        self.assertEqual(weakref.getweakrefcount(o), 2,
                     "wrong weak ref count for object")
        del proxy
        self.assertEqual(weakref.getweakrefcount(o), 1,
                     "wrong weak ref count for object after deleting proxy") 
Example #10
Source File: test_weakref.py    From Fluid-Designer with GNU General Public License v3.0 6 votes vote down vote up
def test_getweakrefcount(self):
        o = C()
        ref1 = weakref.ref(o)
        ref2 = weakref.ref(o, self.callback)
        self.assertEqual(weakref.getweakrefcount(o), 2,
                     "got wrong number of weak reference objects")

        proxy1 = weakref.proxy(o)
        proxy2 = weakref.proxy(o, self.callback)
        self.assertEqual(weakref.getweakrefcount(o), 4,
                     "got wrong number of weak reference objects")

        del ref1, ref2, proxy1, proxy2
        self.assertEqual(weakref.getweakrefcount(o), 0,
                     "weak reference objects not unlinked from"
                     " referent when discarded.")

        # assumes ints do not support weakrefs
        self.assertEqual(weakref.getweakrefcount(1), 0,
                     "got wrong number of weak reference objects for int") 
Example #11
Source File: test_weakref.py    From gcblue with BSD 3-Clause "New" or "Revised" License 6 votes vote down vote up
def test_subclass_refs_dont_replace_standard_refs(self):
        class MyRef(weakref.ref):
            pass
        o = Object(42)
        r1 = MyRef(o)
        r2 = weakref.ref(o)
        self.assertIsNot(r1, r2)
        self.assertEqual(weakref.getweakrefs(o), [r2, r1])
        self.assertEqual(weakref.getweakrefcount(o), 2)
        r3 = MyRef(o)
        self.assertEqual(weakref.getweakrefcount(o), 3)
        refs = weakref.getweakrefs(o)
        self.assertEqual(len(refs), 3)
        self.assertIs(r2, refs[0])
        self.assertIn(r1, refs[1:])
        self.assertIn(r3, refs[1:]) 
Example #12
Source File: test_weakref.py    From medicare-demo with Apache License 2.0 6 votes vote down vote up
def test_subclass_refs_dont_replace_standard_refs(self):
        class MyRef(weakref.ref):
            pass
        o = Object(42)
        r1 = MyRef(o)
        r2 = weakref.ref(o)
        self.assert_(r1 is not r2)
        self.assertEqual(weakref.getweakrefs(o), [r2, r1])
        self.assertEqual(weakref.getweakrefcount(o), 2)
        r3 = MyRef(o)
        self.assertEqual(weakref.getweakrefcount(o), 3)
        refs = weakref.getweakrefs(o)
        self.assertEqual(len(refs), 3)
        self.assert_(r2 is refs[0])
        self.assert_(r1 in refs[1:])
        self.assert_(r3 in refs[1:]) 
Example #13
Source File: test_weakref.py    From medicare-demo with Apache License 2.0 6 votes vote down vote up
def test_getweakrefcount(self):
        o = C()
        ref1 = weakref.ref(o)
        ref2 = weakref.ref(o, self.callback)
        self.assert_(weakref.getweakrefcount(o) == 2,
                     "got wrong number of weak reference objects")

        proxy1 = weakref.proxy(o)
        proxy2 = weakref.proxy(o, self.callback)
        self.assert_(weakref.getweakrefcount(o) == 4,
                     "got wrong number of weak reference objects")

        del ref1, ref2, proxy1, proxy2
        extra_collect()
        self.assert_(weakref.getweakrefcount(o) == 0,
                     "weak reference objects not unlinked from"
                     " referent when discarded.")

        # assumes ints do not support weakrefs
        self.assert_(weakref.getweakrefcount(1) == 0,
                     "got wrong number of weak reference objects for int") 
Example #14
Source File: test_weakref.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 6 votes vote down vote up
def test_ref_reuse(self):
        o = C()
        ref1 = weakref.ref(o)
        # create a proxy to make sure that there's an intervening creation
        # between these two; it should make no difference
        proxy = weakref.proxy(o)
        ref2 = weakref.ref(o)
        self.assertIs(ref1, ref2,
                     "reference object w/out callback should be re-used")

        o = C()
        proxy = weakref.proxy(o)
        ref1 = weakref.ref(o)
        ref2 = weakref.ref(o)
        self.assertIs(ref1, ref2,
                     "reference object w/out callback should be re-used")
        self.assertEqual(weakref.getweakrefcount(o), 2,
                     "wrong weak ref count for object")
        del proxy
        self.assertEqual(weakref.getweakrefcount(o), 1,
                     "wrong weak ref count for object after deleting proxy") 
Example #15
Source File: test_weakref.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 6 votes vote down vote up
def test_getweakrefcount(self):
        o = C()
        ref1 = weakref.ref(o)
        ref2 = weakref.ref(o, self.callback)
        self.assertEqual(weakref.getweakrefcount(o), 2,
                     "got wrong number of weak reference objects")

        proxy1 = weakref.proxy(o)
        proxy2 = weakref.proxy(o, self.callback)
        self.assertEqual(weakref.getweakrefcount(o), 4,
                     "got wrong number of weak reference objects")

        del ref1, ref2, proxy1, proxy2
        self.assertEqual(weakref.getweakrefcount(o), 0,
                     "weak reference objects not unlinked from"
                     " referent when discarded.")

        # assumes ints do not support weakrefs
        self.assertEqual(weakref.getweakrefcount(1), 0,
                     "got wrong number of weak reference objects for int") 
Example #16
Source File: test_weakref.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 6 votes vote down vote up
def test_subclass_refs_dont_replace_standard_refs(self):
        class MyRef(weakref.ref):
            pass
        o = Object(42)
        r1 = MyRef(o)
        r2 = weakref.ref(o)
        self.assertIsNot(r1, r2)
        self.assertEqual(weakref.getweakrefs(o), [r2, r1])
        self.assertEqual(weakref.getweakrefcount(o), 2)
        r3 = MyRef(o)
        self.assertEqual(weakref.getweakrefcount(o), 3)
        refs = weakref.getweakrefs(o)
        self.assertEqual(len(refs), 3)
        self.assertIs(r2, refs[0])
        self.assertIn(r1, refs[1:])
        self.assertIn(r3, refs[1:]) 
Example #17
Source File: test_weakref.py    From medicare-demo with Apache License 2.0 6 votes vote down vote up
def test_ref_reuse(self):
        o = C()
        ref1 = weakref.ref(o)
        # create a proxy to make sure that there's an intervening creation
        # between these two; it should make no difference
        proxy = weakref.proxy(o)
        ref2 = weakref.ref(o)
        self.assert_(ref1 is ref2,
                     "reference object w/out callback should be re-used")

        o = C()
        proxy = weakref.proxy(o)
        ref1 = weakref.ref(o)
        ref2 = weakref.ref(o)
        self.assert_(ref1 is ref2,
                     "reference object w/out callback should be re-used")
        self.assert_(weakref.getweakrefcount(o) == 2,
                     "wrong weak ref count for object")
        del proxy
        extra_collect()
        self.assert_(weakref.getweakrefcount(o) == 1,
                     "wrong weak ref count for object after deleting proxy") 
Example #18
Source File: test_weakref.py    From ironpython2 with Apache License 2.0 6 votes vote down vote up
def test_getweakrefcount(self):
        o = C()
        ref1 = weakref.ref(o)
        ref2 = weakref.ref(o, self.callback)
        self.assertEqual(weakref.getweakrefcount(o), 2,
                     "got wrong number of weak reference objects")

        proxy1 = weakref.proxy(o)
        proxy2 = weakref.proxy(o, self.callback)
        self.assertEqual(weakref.getweakrefcount(o), 4,
                     "got wrong number of weak reference objects")

        del ref1, ref2, proxy1, proxy2
        self.assertEqual(weakref.getweakrefcount(o), 0,
                     "weak reference objects not unlinked from"
                     " referent when discarded.")

        # assumes ints do not support weakrefs
        self.assertEqual(weakref.getweakrefcount(1), 0,
                     "got wrong number of weak reference objects for int") 
Example #19
Source File: test_weakref.py    From ironpython2 with Apache License 2.0 6 votes vote down vote up
def test_subclass_refs_dont_replace_standard_refs(self):
        class MyRef(weakref.ref):
            pass
        o = Object(42)
        r1 = MyRef(o)
        r2 = weakref.ref(o)
        self.assertIsNot(r1, r2)
        self.assertEqual(weakref.getweakrefs(o), [r2, r1])
        self.assertEqual(weakref.getweakrefcount(o), 2)
        r3 = MyRef(o)
        self.assertEqual(weakref.getweakrefcount(o), 3)
        refs = weakref.getweakrefs(o)
        self.assertEqual(len(refs), 3)
        self.assertIs(r2, refs[0])
        self.assertIn(r1, refs[1:])
        self.assertIn(r3, refs[1:]) 
Example #20
Source File: test_weakref.py    From ironpython2 with Apache License 2.0 6 votes vote down vote up
def test_ref_reuse(self):
        o = C()
        ref1 = weakref.ref(o)
        # create a proxy to make sure that there's an intervening creation
        # between these two; it should make no difference
        proxy = weakref.proxy(o)
        ref2 = weakref.ref(o)
        self.assertIs(ref1, ref2,
                     "reference object w/out callback should be re-used")

        o = C()
        proxy = weakref.proxy(o)
        ref1 = weakref.ref(o)
        ref2 = weakref.ref(o)
        self.assertIs(ref1, ref2,
                     "reference object w/out callback should be re-used")
        self.assertEqual(weakref.getweakrefcount(o), 2,
                     "wrong weak ref count for object")
        del proxy
        self.assertEqual(weakref.getweakrefcount(o), 1,
                     "wrong weak ref count for object after deleting proxy") 
Example #21
Source File: test_weakref.py    From CTFCrackTools with GNU General Public License v3.0 6 votes vote down vote up
def test_ref_reuse(self):
        o = C()
        ref1 = weakref.ref(o)
        # create a proxy to make sure that there's an intervening creation
        # between these two; it should make no difference
        proxy = weakref.proxy(o)
        ref2 = weakref.ref(o)
        self.assertTrue(ref1 is ref2,
                     "reference object w/out callback should be re-used")

        o = C()
        proxy = weakref.proxy(o)
        ref1 = weakref.ref(o)
        ref2 = weakref.ref(o)
        self.assertTrue(ref1 is ref2,
                     "reference object w/out callback should be re-used")
        self.assertTrue(weakref.getweakrefcount(o) == 2,
                     "wrong weak ref count for object")
        del proxy
        gc.collect()
        self.assertTrue(weakref.getweakrefcount(o) == 1,
                     "wrong weak ref count for object after deleting proxy") 
Example #22
Source File: test_weakref.py    From oss-ftp with MIT License 6 votes vote down vote up
def test_subclass_refs_dont_replace_standard_refs(self):
        class MyRef(weakref.ref):
            pass
        o = Object(42)
        r1 = MyRef(o)
        r2 = weakref.ref(o)
        self.assertIsNot(r1, r2)
        self.assertEqual(weakref.getweakrefs(o), [r2, r1])
        self.assertEqual(weakref.getweakrefcount(o), 2)
        r3 = MyRef(o)
        self.assertEqual(weakref.getweakrefcount(o), 3)
        refs = weakref.getweakrefs(o)
        self.assertEqual(len(refs), 3)
        self.assertIs(r2, refs[0])
        self.assertIn(r1, refs[1:])
        self.assertIn(r3, refs[1:]) 
Example #23
Source File: test_weakref.py    From oss-ftp with MIT License 6 votes vote down vote up
def test_getweakrefcount(self):
        o = C()
        ref1 = weakref.ref(o)
        ref2 = weakref.ref(o, self.callback)
        self.assertEqual(weakref.getweakrefcount(o), 2,
                     "got wrong number of weak reference objects")

        proxy1 = weakref.proxy(o)
        proxy2 = weakref.proxy(o, self.callback)
        self.assertEqual(weakref.getweakrefcount(o), 4,
                     "got wrong number of weak reference objects")

        del ref1, ref2, proxy1, proxy2
        self.assertEqual(weakref.getweakrefcount(o), 0,
                     "weak reference objects not unlinked from"
                     " referent when discarded.")

        # assumes ints do not support weakrefs
        self.assertEqual(weakref.getweakrefcount(1), 0,
                     "got wrong number of weak reference objects for int") 
Example #24
Source File: test_weakref.py    From oss-ftp with MIT License 6 votes vote down vote up
def test_ref_reuse(self):
        o = C()
        ref1 = weakref.ref(o)
        # create a proxy to make sure that there's an intervening creation
        # between these two; it should make no difference
        proxy = weakref.proxy(o)
        ref2 = weakref.ref(o)
        self.assertIs(ref1, ref2,
                     "reference object w/out callback should be re-used")

        o = C()
        proxy = weakref.proxy(o)
        ref1 = weakref.ref(o)
        ref2 = weakref.ref(o)
        self.assertIs(ref1, ref2,
                     "reference object w/out callback should be re-used")
        self.assertEqual(weakref.getweakrefcount(o), 2,
                     "wrong weak ref count for object")
        del proxy
        self.assertEqual(weakref.getweakrefcount(o), 1,
                     "wrong weak ref count for object after deleting proxy") 
Example #25
Source File: test_weakref.py    From CTFCrackTools-V2 with GNU General Public License v3.0 6 votes vote down vote up
def test_subclass_refs_dont_replace_standard_refs(self):
        class MyRef(weakref.ref):
            pass
        o = Object(42)
        r1 = MyRef(o)
        r2 = weakref.ref(o)
        self.assertTrue(r1 is not r2)
        self.assertEqual(weakref.getweakrefs(o), [r2, r1])
        self.assertEqual(weakref.getweakrefcount(o), 2)
        r3 = MyRef(o)
        self.assertEqual(weakref.getweakrefcount(o), 3)
        refs = weakref.getweakrefs(o)
        self.assertEqual(len(refs), 3)
        self.assertIn(r1, refs)
        self.assertIn(r2, refs)
        self.assertIn(r3, refs) 
Example #26
Source File: test_weakref.py    From CTFCrackTools with GNU General Public License v3.0 6 votes vote down vote up
def test_getweakrefcount(self):
        o = C()
        ref1 = weakref.ref(o)
        ref2 = weakref.ref(o, self.callback)
        self.assertTrue(weakref.getweakrefcount(o) == 2,
                     "got wrong number of weak reference objects")

        proxy1 = weakref.proxy(o)
        proxy2 = weakref.proxy(o, self.callback)
        self.assertTrue(weakref.getweakrefcount(o) == 4,
                     "got wrong number of weak reference objects")

        del ref1, ref2, proxy1, proxy2
        gc.collect()
        self.assertTrue(weakref.getweakrefcount(o) == 0,
                     "weak reference objects not unlinked from"
                     " referent when discarded.")

        # assumes ints do not support weakrefs
        self.assertTrue(weakref.getweakrefcount(1) == 0,
                     "got wrong number of weak reference objects for int") 
Example #27
Source File: test_weakref.py    From CTFCrackTools with GNU General Public License v3.0 6 votes vote down vote up
def test_subclass_refs_dont_replace_standard_refs(self):
        class MyRef(weakref.ref):
            pass
        o = Object(42)
        r1 = MyRef(o)
        r2 = weakref.ref(o)
        self.assertTrue(r1 is not r2)
        self.assertEqual(weakref.getweakrefs(o), [r2, r1])
        self.assertEqual(weakref.getweakrefcount(o), 2)
        r3 = MyRef(o)
        self.assertEqual(weakref.getweakrefcount(o), 3)
        refs = weakref.getweakrefs(o)
        self.assertEqual(len(refs), 3)
        self.assertIn(r1, refs)
        self.assertIn(r2, refs)
        self.assertIn(r3, refs) 
Example #28
Source File: test_weakref.py    From BinderFilter with MIT License 6 votes vote down vote up
def test_subclass_refs_dont_replace_standard_refs(self):
        class MyRef(weakref.ref):
            pass
        o = Object(42)
        r1 = MyRef(o)
        r2 = weakref.ref(o)
        self.assertTrue(r1 is not r2)
        self.assertEqual(weakref.getweakrefs(o), [r2, r1])
        self.assertEqual(weakref.getweakrefcount(o), 2)
        r3 = MyRef(o)
        self.assertEqual(weakref.getweakrefcount(o), 3)
        refs = weakref.getweakrefs(o)
        self.assertEqual(len(refs), 3)
        self.assertTrue(r2 is refs[0])
        self.assertIn(r1, refs[1:])
        self.assertIn(r3, refs[1:]) 
Example #29
Source File: test_weakref.py    From BinderFilter with MIT License 6 votes vote down vote up
def test_getweakrefcount(self):
        o = C()
        ref1 = weakref.ref(o)
        ref2 = weakref.ref(o, self.callback)
        self.assertTrue(weakref.getweakrefcount(o) == 2,
                     "got wrong number of weak reference objects")

        proxy1 = weakref.proxy(o)
        proxy2 = weakref.proxy(o, self.callback)
        self.assertTrue(weakref.getweakrefcount(o) == 4,
                     "got wrong number of weak reference objects")

        del ref1, ref2, proxy1, proxy2
        self.assertTrue(weakref.getweakrefcount(o) == 0,
                     "weak reference objects not unlinked from"
                     " referent when discarded.")

        # assumes ints do not support weakrefs
        self.assertTrue(weakref.getweakrefcount(1) == 0,
                     "got wrong number of weak reference objects for int") 
Example #30
Source File: test_weakref.py    From BinderFilter with MIT License 6 votes vote down vote up
def test_ref_reuse(self):
        o = C()
        ref1 = weakref.ref(o)
        # create a proxy to make sure that there's an intervening creation
        # between these two; it should make no difference
        proxy = weakref.proxy(o)
        ref2 = weakref.ref(o)
        self.assertTrue(ref1 is ref2,
                     "reference object w/out callback should be re-used")

        o = C()
        proxy = weakref.proxy(o)
        ref1 = weakref.ref(o)
        ref2 = weakref.ref(o)
        self.assertTrue(ref1 is ref2,
                     "reference object w/out callback should be re-used")
        self.assertTrue(weakref.getweakrefcount(o) == 2,
                     "wrong weak ref count for object")
        del proxy
        self.assertTrue(weakref.getweakrefcount(o) == 1,
                     "wrong weak ref count for object after deleting proxy")