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-rw-r--r--lib/python2.7/ctypes/test/test_refcounts.py98
1 files changed, 0 insertions, 98 deletions
diff --git a/lib/python2.7/ctypes/test/test_refcounts.py b/lib/python2.7/ctypes/test/test_refcounts.py
deleted file mode 100644
index 35a81aa..0000000
--- a/lib/python2.7/ctypes/test/test_refcounts.py
+++ /dev/null
@@ -1,98 +0,0 @@
-import unittest
-import ctypes
-import gc
-
-MyCallback = ctypes.CFUNCTYPE(ctypes.c_int, ctypes.c_int)
-OtherCallback = ctypes.CFUNCTYPE(ctypes.c_int, ctypes.c_int, ctypes.c_ulonglong)
-
-import _ctypes_test
-dll = ctypes.CDLL(_ctypes_test.__file__)
-
-class RefcountTestCase(unittest.TestCase):
-
- def test_1(self):
- from sys import getrefcount as grc
-
- f = dll._testfunc_callback_i_if
- f.restype = ctypes.c_int
- f.argtypes = [ctypes.c_int, MyCallback]
-
- def callback(value):
- #print "called back with", value
- return value
-
- self.assertEqual(grc(callback), 2)
- cb = MyCallback(callback)
-
- self.assertTrue(grc(callback) > 2)
- result = f(-10, cb)
- self.assertEqual(result, -18)
- cb = None
-
- gc.collect()
-
- self.assertEqual(grc(callback), 2)
-
-
- def test_refcount(self):
- from sys import getrefcount as grc
- def func(*args):
- pass
- # this is the standard refcount for func
- self.assertEqual(grc(func), 2)
-
- # the CFuncPtr instance holds atr least one refcount on func:
- f = OtherCallback(func)
- self.assertTrue(grc(func) > 2)
-
- # and may release it again
- del f
- self.assertTrue(grc(func) >= 2)
-
- # but now it must be gone
- gc.collect()
- self.assertTrue(grc(func) == 2)
-
- class X(ctypes.Structure):
- _fields_ = [("a", OtherCallback)]
- x = X()
- x.a = OtherCallback(func)
-
- # the CFuncPtr instance holds atr least one refcount on func:
- self.assertTrue(grc(func) > 2)
-
- # and may release it again
- del x
- self.assertTrue(grc(func) >= 2)
-
- # and now it must be gone again
- gc.collect()
- self.assertEqual(grc(func), 2)
-
- f = OtherCallback(func)
-
- # the CFuncPtr instance holds atr least one refcount on func:
- self.assertTrue(grc(func) > 2)
-
- # create a cycle
- f.cycle = f
-
- del f
- gc.collect()
- self.assertEqual(grc(func), 2)
-
-class AnotherLeak(unittest.TestCase):
- def test_callback(self):
- import sys
-
- proto = ctypes.CFUNCTYPE(ctypes.c_int, ctypes.c_int, ctypes.c_int)
- def func(a, b):
- return a * b * 2
- f = proto(func)
-
- a = sys.getrefcount(ctypes.c_int)
- f(1, 2)
- self.assertEqual(sys.getrefcount(ctypes.c_int), a)
-
-if __name__ == '__main__':
- unittest.main()