| import unittest |
| from ctypes import * |
| |
| class MyInt(c_int): |
| def __eq__(self, other): |
| if type(other) != MyInt: |
| return NotImplementedError |
| return self.value == other.value |
| |
| class Test(unittest.TestCase): |
| |
| def test_compare(self): |
| self.assertEqual(MyInt(3), MyInt(3)) |
| self.assertNotEqual(MyInt(42), MyInt(43)) |
| |
| def test_ignore_retval(self): |
| # Test if the return value of a callback is ignored |
| # if restype is None |
| proto = CFUNCTYPE(None) |
| def func(): |
| return (1, "abc", None) |
| |
| cb = proto(func) |
| self.assertEqual(None, cb()) |
| |
| |
| def test_int_callback(self): |
| args = [] |
| def func(arg): |
| args.append(arg) |
| return arg |
| |
| cb = CFUNCTYPE(None, MyInt)(func) |
| |
| self.assertEqual(None, cb(42)) |
| self.assertEqual(type(args[-1]), MyInt) |
| |
| cb = CFUNCTYPE(c_int, c_int)(func) |
| |
| self.assertEqual(42, cb(42)) |
| self.assertEqual(type(args[-1]), int) |
| |
| def test_int_struct(self): |
| class X(Structure): |
| _fields_ = [("x", MyInt)] |
| |
| self.assertEqual(X().x, MyInt()) |
| |
| s = X() |
| s.x = MyInt(42) |
| |
| self.assertEqual(s.x, MyInt(42)) |
| |
| if __name__ == "__main__": |
| unittest.main() |