'Test validation with invalid input'

def testValidationDestructive(self):

    validate = IS_UTC_DATE()
    assertEqual = self.assertEqual
    dtstr = 'Invalid    Value'
    (value, error) = validate(dtstr)
    assertEqual(error, validate.error_message)
    assertEqual(value, dtstr)
    dtstr = 33
    (value, error) = validate(dtstr)
    assertEqual(error, validate.error_message)
    assertEqual(value, dtstr)
    dtstr = None
    (value, error) = validate(dtstr)
    assertEqual(error, validate.error_message)
    assertEqual(value, dtstr)
