mirror of
https://github.com/pybind/pybind11.git
synced 2024-12-01 17:37:15 +00:00
1ac19036d6
```c++
m.def("foo", foo, py::call_guard<T>());
```
is equivalent to:
```c++
m.def("foo", [](args...) {
T scope_guard;
return foo(args...); // forwarded arguments
});
```
112 lines
2.7 KiB
Python
112 lines
2.7 KiB
Python
import pytest
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def test_keep_alive_argument(capture):
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from pybind11_tests import Parent, Child
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with capture:
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p = Parent()
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assert capture == "Allocating parent."
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with capture:
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p.addChild(Child())
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pytest.gc_collect()
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assert capture == """
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Allocating child.
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Releasing child.
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"""
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with capture:
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del p
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pytest.gc_collect()
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assert capture == "Releasing parent."
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with capture:
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p = Parent()
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assert capture == "Allocating parent."
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with capture:
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p.addChildKeepAlive(Child())
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pytest.gc_collect()
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assert capture == "Allocating child."
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with capture:
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del p
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pytest.gc_collect()
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assert capture == """
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Releasing parent.
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Releasing child.
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"""
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def test_keep_alive_return_value(capture):
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from pybind11_tests import Parent
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with capture:
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p = Parent()
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assert capture == "Allocating parent."
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with capture:
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p.returnChild()
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pytest.gc_collect()
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assert capture == """
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Allocating child.
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Releasing child.
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"""
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with capture:
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del p
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pytest.gc_collect()
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assert capture == "Releasing parent."
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with capture:
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p = Parent()
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assert capture == "Allocating parent."
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with capture:
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p.returnChildKeepAlive()
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pytest.gc_collect()
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assert capture == "Allocating child."
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with capture:
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del p
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pytest.gc_collect()
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assert capture == """
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Releasing parent.
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Releasing child.
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"""
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def test_return_none(capture):
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from pybind11_tests import Parent
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with capture:
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p = Parent()
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assert capture == "Allocating parent."
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with capture:
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p.returnNullChildKeepAliveChild()
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pytest.gc_collect()
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assert capture == ""
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with capture:
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del p
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pytest.gc_collect()
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assert capture == "Releasing parent."
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with capture:
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p = Parent()
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assert capture == "Allocating parent."
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with capture:
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p.returnNullChildKeepAliveParent()
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pytest.gc_collect()
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assert capture == ""
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with capture:
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del p
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pytest.gc_collect()
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assert capture == "Releasing parent."
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def test_call_guard():
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from pybind11_tests import call_policies
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assert call_policies.unguarded_call() == "unguarded"
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assert call_policies.guarded_call() == "guarded"
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assert call_policies.multiple_guards_correct_order() == "guarded & guarded"
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assert call_policies.multiple_guards_wrong_order() == "unguarded & guarded"
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if hasattr(call_policies, "with_gil"):
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assert call_policies.with_gil() == "GIL held"
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assert call_policies.without_gil() == "GIL released"
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