Sources_For_Win/ParaView/Lib/site-packages/win32com/test/testConversionErrors.py

import unittest

import win32com.client
import win32com.test.util
import win32com.server.util

class Tester:
    _public_methods_ = [ 'TestValue' ]
    def TestValue(self, v):
        pass


def test_ob():
    return win32com.client.Dispatch(win32com.server.util.wrap(Tester()))

class TestException(Exception):
    pass

# The object we try and pass - pywin32 will call __float__ as a last resort.
class BadConversions:
    def __float__(self):
        raise TestException()

class TestCase(win32com.test.util.TestCase):
    def test_float(self):
        try:
            test_ob().TestValue(BadConversions())
            raise Exception("Should not have worked")
        except Exception as e:
            assert isinstance(e, TestException)

if __name__=='__main__':
    unittest.main()