Python code coverage for Lib/ctypes/test/test_keeprefs.py

#	count	content
1	n/a	from ctypes import *
2	n/a	import unittest
3	n/a
4	n/a	class SimpleTestCase(unittest.TestCase):
5	n/a	def test_cint(self):
6	n/a	x = c_int()
7	n/a	self.assertEqual(x._objects, None)
8	n/a	x.value = 42
9	n/a	self.assertEqual(x._objects, None)
10	n/a	x = c_int(99)
11	n/a	self.assertEqual(x._objects, None)
12	n/a
13	n/a	def test_ccharp(self):
14	n/a	x = c_char_p()
15	n/a	self.assertEqual(x._objects, None)
16	n/a	x.value = b"abc"
17	n/a	self.assertEqual(x._objects, b"abc")
18	n/a	x = c_char_p(b"spam")
19	n/a	self.assertEqual(x._objects, b"spam")
20	n/a
21	n/a	class StructureTestCase(unittest.TestCase):
22	n/a	def test_cint_struct(self):
23	n/a	class X(Structure):
24	n/a	_fields_ = [("a", c_int),
25	n/a	("b", c_int)]
26	n/a
27	n/a	x = X()
28	n/a	self.assertEqual(x._objects, None)
29	n/a	x.a = 42
30	n/a	x.b = 99
31	n/a	self.assertEqual(x._objects, None)
32	n/a
33	n/a	def test_ccharp_struct(self):
34	n/a	class X(Structure):
35	n/a	_fields_ = [("a", c_char_p),
36	n/a	("b", c_char_p)]
37	n/a	x = X()
38	n/a	self.assertEqual(x._objects, None)
39	n/a
40	n/a	x.a = b"spam"
41	n/a	x.b = b"foo"
42	n/a	self.assertEqual(x._objects, {"0": b"spam", "1": b"foo"})
43	n/a
44	n/a	def test_struct_struct(self):
45	n/a	class POINT(Structure):
46	n/a	_fields_ = [("x", c_int), ("y", c_int)]
47	n/a	class RECT(Structure):
48	n/a	_fields_ = [("ul", POINT), ("lr", POINT)]
49	n/a
50	n/a	r = RECT()
51	n/a	r.ul.x = 0
52	n/a	r.ul.y = 1
53	n/a	r.lr.x = 2
54	n/a	r.lr.y = 3
55	n/a	self.assertEqual(r._objects, None)
56	n/a
57	n/a	r = RECT()
58	n/a	pt = POINT(1, 2)
59	n/a	r.ul = pt
60	n/a	self.assertEqual(r._objects, {'0': {}})
61	n/a	r.ul.x = 22
62	n/a	r.ul.y = 44
63	n/a	self.assertEqual(r._objects, {'0': {}})
64	n/a	r.lr = POINT()
65	n/a	self.assertEqual(r._objects, {'0': {}, '1': {}})
66	n/a
67	n/a	class ArrayTestCase(unittest.TestCase):
68	n/a	def test_cint_array(self):
69	n/a	INTARR = c_int * 3
70	n/a
71	n/a	ia = INTARR()
72	n/a	self.assertEqual(ia._objects, None)
73	n/a	ia[0] = 1
74	n/a	ia[1] = 2
75	n/a	ia[2] = 3
76	n/a	self.assertEqual(ia._objects, None)
77	n/a
78	n/a	class X(Structure):
79	n/a	_fields_ = [("x", c_int),
80	n/a	("a", INTARR)]
81	n/a
82	n/a	x = X()
83	n/a	x.x = 1000
84	n/a	x.a[0] = 42
85	n/a	x.a[1] = 96
86	n/a	self.assertEqual(x._objects, None)
87	n/a	x.a = ia
88	n/a	self.assertEqual(x._objects, {'1': {}})
89	n/a
90	n/a	class PointerTestCase(unittest.TestCase):
91	n/a	def test_p_cint(self):
92	n/a	i = c_int(42)
93	n/a	x = pointer(i)
94	n/a	self.assertEqual(x._objects, {'1': i})
95	n/a
96	n/a	class DeletePointerTestCase(unittest.TestCase):
97	n/a	@unittest.skip('test disabled')
98	n/a	def test_X(self):
99	n/a	class X(Structure):
100	n/a	_fields_ = [("p", POINTER(c_char_p))]
101	n/a	x = X()
102	n/a	i = c_char_p("abc def")
103	n/a	from sys import getrefcount as grc
104	n/a	print("2?", grc(i))
105	n/a	x.p = pointer(i)
106	n/a	print("3?", grc(i))
107	n/a	for i in range(320):
108	n/a	c_int(99)
109	n/a	x.p[0]
110	n/a	print(x.p[0])
111	n/a	## del x
112	n/a	## print "2?", grc(i)
113	n/a	## del i
114	n/a	import gc
115	n/a	gc.collect()
116	n/a	for i in range(320):
117	n/a	c_int(99)
118	n/a	x.p[0]
119	n/a	print(x.p[0])
120	n/a	print(x.p.contents)
121	n/a	## print x._objects
122	n/a
123	n/a	x.p[0] = "spam spam"
124	n/a	## print x.p[0]
125	n/a	print("+" * 42)
126	n/a	print(x._objects)
127	n/a
128	n/a	class PointerToStructure(unittest.TestCase):
129	n/a	def test(self):
130	n/a	class POINT(Structure):
131	n/a	_fields_ = [("x", c_int), ("y", c_int)]
132	n/a	class RECT(Structure):
133	n/a	_fields_ = [("a", POINTER(POINT)),
134	n/a	("b", POINTER(POINT))]
135	n/a	r = RECT()
136	n/a	p1 = POINT(1, 2)
137	n/a
138	n/a	r.a = pointer(p1)
139	n/a	r.b = pointer(p1)
140	n/a	## from pprint import pprint as pp
141	n/a	## pp(p1._objects)
142	n/a	## pp(r._objects)
143	n/a
144	n/a	r.a[0].x = 42
145	n/a	r.a[0].y = 99
146	n/a
147	n/a	# to avoid leaking when tests are run several times
148	n/a	# clean up the types left in the cache.
149	n/a	from ctypes import _pointer_type_cache
150	n/a	del _pointer_type_cache[POINT]
151	n/a
152	n/a	if __name__ == "__main__":
153	n/a	unittest.main()