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6493f496e3
* `#error BYE_BYE_GOLDEN_SNAKE` * Removing everything related to 2.7 from ci.yml * Commenting-out Centos7 * Removing `PYTHON: 27` from .appveyor.yml * "PY2" removal, mainly from tests. C++ code is not touched. * Systematic removal of `u` prefix from `u"..."` and `u'...'` literals. Collateral cleanup of a couple minor other things. * Cleaning up around case-insensitive hits for `[^a-z]py.*2` in tests/. * Removing obsolete Python 2 mention in compiling.rst * Proper `#error` for Python 2. * Using PY_VERSION_HEX to guard `#error "PYTHON 2 IS NO LONGER SUPPORTED.` * chore: bump pre-commit * style: run pre-commit for pyupgrade 3+ * tests: use sys.version_info, not PY * chore: more Python 2 removal * Uncommenting Centos7 block (PR #3691 showed that it is working again). * Update pre-commit hooks * Fix pre-commit hook * refactor: remove Python 2 from CMake * refactor: remove Python 2 from setup code * refactor: simplify, better static typing * feat: fail with nice messages * refactor: drop Python 2 C++ code * docs: cleanup for Python 3 * revert: intree revert: intree * docs: minor touchup to py2 statement Co-authored-by: Henry Schreiner <henryschreineriii@gmail.com> Co-authored-by: Aaron Gokaslan <skylion.aaron@gmail.com>
248 lines
6.4 KiB
Python
248 lines
6.4 KiB
Python
import pytest
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import env # noqa: F401
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from pybind11_tests import ConstructorStats
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from pybind11_tests import call_policies as m
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@pytest.mark.xfail("env.PYPY", reason="sometimes comes out 1 off on PyPy", strict=False)
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def test_keep_alive_argument(capture):
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n_inst = ConstructorStats.detail_reg_inst()
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with capture:
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p = m.Parent()
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assert capture == "Allocating parent."
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with capture:
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p.addChild(m.Child())
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assert ConstructorStats.detail_reg_inst() == n_inst + 1
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assert (
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capture
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== """
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Allocating child.
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Releasing child.
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"""
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)
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with capture:
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del p
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assert ConstructorStats.detail_reg_inst() == n_inst
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assert capture == "Releasing parent."
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with capture:
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p = m.Parent()
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assert capture == "Allocating parent."
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with capture:
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p.addChildKeepAlive(m.Child())
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assert ConstructorStats.detail_reg_inst() == n_inst + 2
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assert capture == "Allocating child."
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with capture:
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del p
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assert ConstructorStats.detail_reg_inst() == n_inst
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assert (
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capture
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== """
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Releasing parent.
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Releasing child.
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"""
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)
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p = m.Parent()
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c = m.Child()
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assert ConstructorStats.detail_reg_inst() == n_inst + 2
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m.free_function(p, c)
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del c
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assert ConstructorStats.detail_reg_inst() == n_inst + 2
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del p
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assert ConstructorStats.detail_reg_inst() == n_inst
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with pytest.raises(RuntimeError) as excinfo:
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m.invalid_arg_index()
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assert str(excinfo.value) == "Could not activate keep_alive!"
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def test_keep_alive_return_value(capture):
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n_inst = ConstructorStats.detail_reg_inst()
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with capture:
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p = m.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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assert ConstructorStats.detail_reg_inst() == n_inst + 1
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assert (
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capture
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== """
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Allocating child.
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Releasing child.
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"""
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)
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with capture:
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del p
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assert ConstructorStats.detail_reg_inst() == n_inst
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assert capture == "Releasing parent."
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with capture:
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p = m.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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assert ConstructorStats.detail_reg_inst() == n_inst + 2
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assert capture == "Allocating child."
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with capture:
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del p
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assert ConstructorStats.detail_reg_inst() == n_inst
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assert (
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capture
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== """
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Releasing parent.
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Releasing child.
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"""
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)
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p = m.Parent()
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assert ConstructorStats.detail_reg_inst() == n_inst + 1
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with capture:
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m.Parent.staticFunction(p)
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assert ConstructorStats.detail_reg_inst() == n_inst + 2
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assert capture == "Allocating child."
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with capture:
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del p
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assert ConstructorStats.detail_reg_inst() == n_inst
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assert (
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capture
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== """
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Releasing parent.
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Releasing child.
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"""
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)
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# https://foss.heptapod.net/pypy/pypy/-/issues/2447
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@pytest.mark.xfail("env.PYPY", reason="_PyObject_GetDictPtr is unimplemented")
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def test_alive_gc(capture):
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n_inst = ConstructorStats.detail_reg_inst()
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p = m.ParentGC()
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p.addChildKeepAlive(m.Child())
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assert ConstructorStats.detail_reg_inst() == n_inst + 2
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lst = [p]
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lst.append(lst) # creates a circular reference
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with capture:
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del p, lst
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assert ConstructorStats.detail_reg_inst() == n_inst
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assert (
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capture
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== """
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Releasing parent.
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Releasing child.
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"""
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)
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def test_alive_gc_derived(capture):
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class Derived(m.Parent):
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pass
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n_inst = ConstructorStats.detail_reg_inst()
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p = Derived()
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p.addChildKeepAlive(m.Child())
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assert ConstructorStats.detail_reg_inst() == n_inst + 2
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lst = [p]
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lst.append(lst) # creates a circular reference
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with capture:
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del p, lst
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assert ConstructorStats.detail_reg_inst() == n_inst
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assert (
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capture
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== """
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Releasing parent.
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Releasing child.
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"""
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)
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def test_alive_gc_multi_derived(capture):
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class Derived(m.Parent, m.Child):
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def __init__(self):
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m.Parent.__init__(self)
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m.Child.__init__(self)
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n_inst = ConstructorStats.detail_reg_inst()
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p = Derived()
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p.addChildKeepAlive(m.Child())
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# +3 rather than +2 because Derived corresponds to two registered instances
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assert ConstructorStats.detail_reg_inst() == n_inst + 3
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lst = [p]
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lst.append(lst) # creates a circular reference
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with capture:
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del p, lst
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assert ConstructorStats.detail_reg_inst() == n_inst
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assert (
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capture
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== """
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Releasing parent.
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Releasing child.
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Releasing child.
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"""
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)
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def test_return_none(capture):
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n_inst = ConstructorStats.detail_reg_inst()
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with capture:
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p = m.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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assert ConstructorStats.detail_reg_inst() == n_inst + 1
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assert capture == ""
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with capture:
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del p
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assert ConstructorStats.detail_reg_inst() == n_inst
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assert capture == "Releasing parent."
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with capture:
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p = m.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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assert ConstructorStats.detail_reg_inst() == n_inst + 1
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assert capture == ""
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with capture:
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del p
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assert ConstructorStats.detail_reg_inst() == n_inst
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assert capture == "Releasing parent."
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def test_keep_alive_constructor(capture):
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n_inst = ConstructorStats.detail_reg_inst()
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with capture:
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p = m.Parent(m.Child())
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assert ConstructorStats.detail_reg_inst() == n_inst + 2
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assert (
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capture
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== """
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Allocating child.
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Allocating parent.
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"""
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)
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with capture:
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del p
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assert ConstructorStats.detail_reg_inst() == n_inst
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assert (
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capture
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== """
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Releasing parent.
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Releasing child.
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"""
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)
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def test_call_guard():
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assert m.unguarded_call() == "unguarded"
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assert m.guarded_call() == "guarded"
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assert m.multiple_guards_correct_order() == "guarded & guarded"
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assert m.multiple_guards_wrong_order() == "unguarded & guarded"
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if hasattr(m, "with_gil"):
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assert m.with_gil() == "GIL held"
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assert m.without_gil() == "GIL released"
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