def METHOD_NAME(self):
    """
    Tests for some unique, non-trivial features.
    """
    source = osp.join(self.INTERFACE_DIR, 'special_cases.i')
    output = self.wrap_content([source], 'special_cases_py',
                               self.PYTHON_ACTUAL_DIR)
    self.compare_and_diff('special_cases_pybind.cpp', output)