diff options
Diffstat (limited to 'lib/python2.7/ctypes/test/test_values.py')
-rw-r--r-- | lib/python2.7/ctypes/test/test_values.py | 82 |
1 files changed, 0 insertions, 82 deletions
diff --git a/lib/python2.7/ctypes/test/test_values.py b/lib/python2.7/ctypes/test/test_values.py deleted file mode 100644 index 4cbfd4b..0000000 --- a/lib/python2.7/ctypes/test/test_values.py +++ /dev/null @@ -1,82 +0,0 @@ -""" -A testcase which accesses *values* in a dll. -""" - -import unittest -from ctypes import * - -import _ctypes_test - -class ValuesTestCase(unittest.TestCase): - - def test_an_integer(self): - ctdll = CDLL(_ctypes_test.__file__) - an_integer = c_int.in_dll(ctdll, "an_integer") - x = an_integer.value - self.assertEqual(x, ctdll.get_an_integer()) - an_integer.value *= 2 - self.assertEqual(x*2, ctdll.get_an_integer()) - - def test_undefined(self): - ctdll = CDLL(_ctypes_test.__file__) - self.assertRaises(ValueError, c_int.in_dll, ctdll, "Undefined_Symbol") - - class Win_ValuesTestCase(unittest.TestCase): - """This test only works when python itself is a dll/shared library""" - - def test_optimizeflag(self): - # This test accesses the Py_OptimizeFlag intger, which is - # exported by the Python dll. - - # It's value is set depending on the -O and -OO flags: - # if not given, it is 0 and __debug__ is 1. - # If -O is given, the flag is 1, for -OO it is 2. - # docstrings are also removed in the latter case. - opt = c_int.in_dll(pydll, "Py_OptimizeFlag").value - if __debug__: - self.assertEqual(opt, 0) - elif ValuesTestCase.__doc__ is not None: - self.assertEqual(opt, 1) - else: - self.assertEqual(opt, 2) - - def test_frozentable(self): - # Python exports a PyImport_FrozenModules symbol. This is a - # pointer to an array of struct _frozen entries. The end of the - # array is marked by an entry containing a NULL name and zero - # size. - - # In standard Python, this table contains a __hello__ - # module, and a __phello__ package containing a spam - # module. - class struct_frozen(Structure): - _fields_ = [("name", c_char_p), - ("code", POINTER(c_ubyte)), - ("size", c_int)] - FrozenTable = POINTER(struct_frozen) - - ft = FrozenTable.in_dll(pydll, "PyImport_FrozenModules") - # ft is a pointer to the struct_frozen entries: - items = [] - for entry in ft: - # This is dangerous. We *can* iterate over a pointer, but - # the loop will not terminate (maybe with an access - # violation;-) because the pointer instance has no size. - if entry.name is None: - break - items.append((entry.name, entry.size)) - import sys - if sys.version_info[:2] >= (2, 3): - expected = [("__hello__", 104), ("__phello__", -104), ("__phello__.spam", 104)] - else: - expected = [("__hello__", 100), ("__phello__", -100), ("__phello__.spam", 100)] - self.assertEqual(items, expected) - - from ctypes import _pointer_type_cache - del _pointer_type_cache[struct_frozen] - - def test_undefined(self): - self.assertRaises(ValueError, c_int.in_dll, pydll, "Undefined_Symbol") - -if __name__ == '__main__': - unittest.main() |