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import sys
import unittest
from ctypes import *
@unittest.skipUnless(sys.platform.startswith('win'), 'Windows-only test')
class WinTypesTest(unittest.TestCase):
def test_variant_bool(self):
from ctypes import wintypes
# reads 16-bits from memory, anything non-zero is True
for true_value in (1, 32767, 32768, 65535, 65537):
true = POINTER(c_int16)(c_int16(true_value))
value = cast(true, POINTER(wintypes.VARIANT_BOOL))
self.assertEqual(repr(value.contents), 'VARIANT_BOOL(True)')
vb = wintypes.VARIANT_BOOL()
self.assertIs(vb.value, False)
vb.value = True
self.assertIs(vb.value, True)
vb.value = true_value
self.assertIs(vb.value, True)
for false_value in (0, 65536, 262144, 2**33):
false = POINTER(c_int16)(c_int16(false_value))
value = cast(false, POINTER(wintypes.VARIANT_BOOL))
self.assertEqual(repr(value.contents), 'VARIANT_BOOL(False)')
# allow any bool conversion on assignment to value
for set_value in (65536, 262144, 2**33):
vb = wintypes.VARIANT_BOOL()
vb.value = set_value
self.assertIs(vb.value, True)
vb = wintypes.VARIANT_BOOL()
vb.value = [2, 3]
self.assertIs(vb.value, True)
vb.value = []
self.assertIs(vb.value, False)
if __name__ == "__main__":
unittest.main()
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