test_cpp_base_py_derived.py

# -*- coding: utf-8 -*-
# pybind11 equivalent of Boost.Python test:
# https://github.com/rwgk/rwgk_tbx/blob/6c9a6d6bc72d5c1b8609724433259c5b47178680/tst_cpp_base_py_derived.py
# See also: https://github.com/pybind/pybind11/issues/1333 (this was the starting point)

from pybind11_tests import cpp_base_py_derived as m


class drvd(m.base):  # noqa: N801
    def __init__(self, _num=200):
        super().__init__()
        self._drvd_num = _num

    def get_num(self):
        return self._drvd_num

    def clone(self):
        return drvd(250)


def test_base():
    b = m.base()
    assert b.get_num() == 100
    assert m.get_num(b) == 100
    bc = b.clone()
    assert bc.get_num() == 150
    assert m.clone_get_num(b) == 103157


def test_drvd():
    d = drvd()
    assert d.get_num() == 200
    assert m.get_num(d) == 200
    dc = d.clone()
    assert dc.get_num() == 250
    assert m.clone_get_num(d) == 203257