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https://github.com/rwgk/pybind11/tree/xxx_value_ptr_xxx_holder Systematically exercising casting between shared_ptr<base>, shared_ptr<derived>.
41 lines
1.2 KiB
Python
41 lines
1.2 KiB
Python
# -*- coding: utf-8 -*-
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import pytest
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from pybind11_tests import smart_ptr_base_derived as m
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CBASE_GET_INT_RESULT = 90146438
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CDERIVED_GET_INT_RESULT = 31607978
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VDERIVED_GET_INT_RESULT = 29852452
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def test_concrete():
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m.to_cout("")
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m.to_cout("")
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m.to_cout("make_shared_cderived")
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cd = m.make_shared_cderived()
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assert cd.get_int() == CDERIVED_GET_INT_RESULT
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m.pass_shared_cderived(cd)
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m.pass_shared_cbase(cd)
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cb = m.make_shared_cderived_up_cast()
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assert cb.get_int() == CBASE_GET_INT_RESULT
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m.pass_shared_cbase(cb)
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with pytest.raises(TypeError):
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m.pass_shared_cderived(cb)
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m.to_cout("")
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def test_virtual():
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m.to_cout("")
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m.to_cout("")
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m.to_cout("make_shared_vderived")
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vd = m.make_shared_vderived()
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assert vd.get_int() == VDERIVED_GET_INT_RESULT
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m.pass_shared_vderived(vd)
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m.pass_shared_vbase(vd)
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vd_uc = m.make_shared_vderived_up_cast()
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assert vd_uc.get_int() == VDERIVED_GET_INT_RESULT
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assert isinstance(vd_uc, m.vderived) # pybind11 un-did upcast.
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m.pass_shared_vbase(vd_uc)
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m.pass_shared_vderived(vd_uc)
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with pytest.raises(TypeError):
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m.pass_shared_vrederived(vd_uc)
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m.to_cout("")
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