| 1 | n/a | import sys |
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| 2 | n/a | from test import support |
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| 3 | n/a | import unittest |
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| 4 | n/a | from ctypes import * |
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| 5 | n/a | from ctypes.test import need_symbol |
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| 6 | n/a | |
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| 7 | n/a | class MemFunctionsTest(unittest.TestCase): |
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| 8 | n/a | @unittest.skip('test disabled') |
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| 9 | n/a | def test_overflow(self): |
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| 10 | n/a | # string_at and wstring_at must use the Python calling |
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| 11 | n/a | # convention (which acquires the GIL and checks the Python |
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| 12 | n/a | # error flag). Provoke an error and catch it; see also issue |
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| 13 | n/a | # #3554: <http://bugs.python.org/issue3554> |
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| 14 | n/a | self.assertRaises((OverflowError, MemoryError, SystemError), |
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| 15 | n/a | lambda: wstring_at(u"foo", sys.maxint - 1)) |
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| 16 | n/a | self.assertRaises((OverflowError, MemoryError, SystemError), |
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| 17 | n/a | lambda: string_at("foo", sys.maxint - 1)) |
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| 18 | n/a | |
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| 19 | n/a | def test_memmove(self): |
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| 20 | n/a | # large buffers apparently increase the chance that the memory |
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| 21 | n/a | # is allocated in high address space. |
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| 22 | n/a | a = create_string_buffer(1000000) |
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| 23 | n/a | p = b"Hello, World" |
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| 24 | n/a | result = memmove(a, p, len(p)) |
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| 25 | n/a | self.assertEqual(a.value, b"Hello, World") |
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| 26 | n/a | |
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| 27 | n/a | self.assertEqual(string_at(result), b"Hello, World") |
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| 28 | n/a | self.assertEqual(string_at(result, 5), b"Hello") |
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| 29 | n/a | self.assertEqual(string_at(result, 16), b"Hello, World\0\0\0\0") |
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| 30 | n/a | self.assertEqual(string_at(result, 0), b"") |
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| 31 | n/a | |
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| 32 | n/a | def test_memset(self): |
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| 33 | n/a | a = create_string_buffer(1000000) |
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| 34 | n/a | result = memset(a, ord('x'), 16) |
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| 35 | n/a | self.assertEqual(a.value, b"xxxxxxxxxxxxxxxx") |
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| 36 | n/a | |
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| 37 | n/a | self.assertEqual(string_at(result), b"xxxxxxxxxxxxxxxx") |
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| 38 | n/a | self.assertEqual(string_at(a), b"xxxxxxxxxxxxxxxx") |
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| 39 | n/a | self.assertEqual(string_at(a, 20), b"xxxxxxxxxxxxxxxx\0\0\0\0") |
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| 40 | n/a | |
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| 41 | n/a | def test_cast(self): |
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| 42 | n/a | a = (c_ubyte * 32)(*map(ord, "abcdef")) |
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| 43 | n/a | self.assertEqual(cast(a, c_char_p).value, b"abcdef") |
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| 44 | n/a | self.assertEqual(cast(a, POINTER(c_byte))[:7], |
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| 45 | n/a | [97, 98, 99, 100, 101, 102, 0]) |
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| 46 | n/a | self.assertEqual(cast(a, POINTER(c_byte))[:7:], |
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| 47 | n/a | [97, 98, 99, 100, 101, 102, 0]) |
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| 48 | n/a | self.assertEqual(cast(a, POINTER(c_byte))[6:-1:-1], |
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| 49 | n/a | [0, 102, 101, 100, 99, 98, 97]) |
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| 50 | n/a | self.assertEqual(cast(a, POINTER(c_byte))[:7:2], |
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| 51 | n/a | [97, 99, 101, 0]) |
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| 52 | n/a | self.assertEqual(cast(a, POINTER(c_byte))[:7:7], |
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| 53 | n/a | [97]) |
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| 54 | n/a | |
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| 55 | n/a | @support.refcount_test |
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| 56 | n/a | def test_string_at(self): |
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| 57 | n/a | s = string_at(b"foo bar") |
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| 58 | n/a | # XXX The following may be wrong, depending on how Python |
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| 59 | n/a | # manages string instances |
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| 60 | n/a | self.assertEqual(2, sys.getrefcount(s)) |
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| 61 | n/a | self.assertTrue(s, "foo bar") |
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| 62 | n/a | |
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| 63 | n/a | self.assertEqual(string_at(b"foo bar", 7), b"foo bar") |
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| 64 | n/a | self.assertEqual(string_at(b"foo bar", 3), b"foo") |
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| 65 | n/a | |
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| 66 | n/a | @need_symbol('create_unicode_buffer') |
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| 67 | n/a | def test_wstring_at(self): |
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| 68 | n/a | p = create_unicode_buffer("Hello, World") |
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| 69 | n/a | a = create_unicode_buffer(1000000) |
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| 70 | n/a | result = memmove(a, p, len(p) * sizeof(c_wchar)) |
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| 71 | n/a | self.assertEqual(a.value, "Hello, World") |
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| 72 | n/a | |
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| 73 | n/a | self.assertEqual(wstring_at(a), "Hello, World") |
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| 74 | n/a | self.assertEqual(wstring_at(a, 5), "Hello") |
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| 75 | n/a | self.assertEqual(wstring_at(a, 16), "Hello, World\0\0\0\0") |
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| 76 | n/a | self.assertEqual(wstring_at(a, 0), "") |
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| 77 | n/a | |
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| 78 | n/a | if __name__ == "__main__": |
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| 79 | n/a | unittest.main() |
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