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4766065e5c
* Content of PR #4374 applied on top of smart_holder branch. * More tests, with USE_SH switch. [ci skip] * Use `std::dynamic_pointer_cast<Base0>` [ci skip] * All tests pass when using `m.make_derived_as_base0_raw_ptr()`, with `USE_SH` defined or not defined. [ci skip] * WIP * Debug LOOOK & one-line bug fix: ```diff - auto smhldr = pybindit::memory::smart_holder::from_shared_ptr(src); + auto smhldr = pybindit::memory::smart_holder::from_shared_ptr(std::shared_ptr<void>(src, const_cast<void *>(st.first))); ``` * Remove all print LOOOK and clang-format the fix. * Resolve clang-tidy errors. * Systematic test matrix. * Bug fix in `smart_holder_type_caster<std::unique_ptr<T, D>>::cast()` * Rename: test_mi_debug -> test_class_sh_mi_thunks * Add `test_ptrdiff_derived_base0()` * Miscellaneous polishing (naming, comments). No functional changes. * Improve test_class_sh_mi_thunks.py implementation. No change in test coverage. * Resolve clang-tidy error.
57 lines
1.5 KiB
Python
57 lines
1.5 KiB
Python
import pytest
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from pybind11_tests import class_sh_mi_thunks as m
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def test_ptrdiff_drvd_base0():
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ptrdiff = m.ptrdiff_drvd_base0()
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# A failure here does not (necessarily) mean that there is a bug, but that
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# test_class_sh_mi_thunks is not exercising what it is supposed to.
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# If this ever fails on some platforms: use pytest.skip()
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# If this ever fails on all platforms: don't know, seems extremely unlikely.
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assert ptrdiff != 0
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@pytest.mark.parametrize(
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"vec_size_fn",
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[
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m.vec_size_base0_raw_ptr,
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m.vec_size_base0_shared_ptr,
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],
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)
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@pytest.mark.parametrize(
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"get_fn",
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[
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m.get_drvd_as_base0_raw_ptr,
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m.get_drvd_as_base0_shared_ptr,
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m.get_drvd_as_base0_unique_ptr,
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],
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)
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def test_get_vec_size_raw_shared(get_fn, vec_size_fn):
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obj = get_fn()
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assert vec_size_fn(obj) == 5
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@pytest.mark.parametrize(
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"get_fn", [m.get_drvd_as_base0_raw_ptr, m.get_drvd_as_base0_unique_ptr]
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)
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def test_get_vec_size_unique(get_fn):
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obj = get_fn()
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assert m.vec_size_base0_unique_ptr(obj) == 5
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with pytest.raises(ValueError) as exc_info:
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m.vec_size_base0_unique_ptr(obj)
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assert (
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str(exc_info.value)
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== "Missing value for wrapped C++ type: Python instance was disowned."
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)
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def test_get_shared_vec_size_unique():
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obj = m.get_drvd_as_base0_shared_ptr()
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with pytest.raises(ValueError) as exc_info:
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m.vec_size_base0_unique_ptr(obj)
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assert (
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str(exc_info.value)
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== "Cannot disown external shared_ptr (loaded_as_unique_ptr)."
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)
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