mirror of
https://github.com/pybind/pybind11.git
synced 2024-11-23 05:35:13 +00:00
6c922614ed
* Using new smart_holder::reclaim_disowned in smart_holder_type_caster for unique_ptr. * Systematically renaming was_disowned to is_disowned (because disowning is now reversible: reclaim_disowned). * Systematically renaming virtual_overrider_self_life_support to trampoline_self_life_support (to reuse existing terminology instead of introducing new one). * Systematically renaming test_class_sh_with_alias to test_class_sh_trampoline_basic. * Adding a Trampolines and std::unique_ptr section to README_smart_holder.rst. * MSVC compatibility.
78 lines
2.7 KiB
Python
78 lines
2.7 KiB
Python
# -*- coding: utf-8 -*-
|
|
from __future__ import print_function
|
|
|
|
import pytest
|
|
|
|
from pybind11_tests import class_sh_disowning as m
|
|
|
|
|
|
def test_same_twice():
|
|
while True:
|
|
obj1a = m.Atype1(57)
|
|
obj1b = m.Atype1(62)
|
|
assert m.same_twice(obj1a, obj1b) == (57 * 10 + 1) * 100 + (62 * 10 + 1) * 10
|
|
obj1c = m.Atype1(0)
|
|
with pytest.raises(ValueError):
|
|
# Disowning works for one argument, but not both.
|
|
m.same_twice(obj1c, obj1c)
|
|
with pytest.raises(ValueError):
|
|
obj1c.get()
|
|
return # Comment out for manual leak checking (use `top` command).
|
|
|
|
|
|
def test_mixed():
|
|
first_pass = True
|
|
while True:
|
|
obj1a = m.Atype1(90)
|
|
obj2a = m.Atype2(25)
|
|
assert m.mixed(obj1a, obj2a) == (90 * 10 + 1) * 200 + (25 * 10 + 2) * 20
|
|
|
|
# The C++ order of evaluation of function arguments is (unfortunately) unspecified:
|
|
# https://en.cppreference.com/w/cpp/language/eval_order
|
|
# Read on.
|
|
obj1b = m.Atype1(0)
|
|
with pytest.raises(ValueError):
|
|
# If the 1st argument is evaluated first, obj1b is disowned before the conversion for
|
|
# the already disowned obj2a fails as expected.
|
|
m.mixed(obj1b, obj2a)
|
|
obj2b = m.Atype2(0)
|
|
with pytest.raises(ValueError):
|
|
# If the 2nd argument is evaluated first, obj2b is disowned before the conversion for
|
|
# the already disowned obj1a fails as expected.
|
|
m.mixed(obj1a, obj2b)
|
|
|
|
def is_disowned(obj):
|
|
try:
|
|
obj.get()
|
|
except ValueError:
|
|
return True
|
|
return False
|
|
|
|
# Either obj1b or obj2b was disowned in the expected failed m.mixed() calls above, but not
|
|
# both.
|
|
is_disowned_results = (is_disowned(obj1b), is_disowned(obj2b))
|
|
assert is_disowned_results.count(True) == 1
|
|
if first_pass:
|
|
first_pass = False
|
|
print(
|
|
"\nC++ function argument %d is evaluated first."
|
|
% (is_disowned_results.index(True) + 1)
|
|
)
|
|
|
|
return # Comment out for manual leak checking (use `top` command).
|
|
|
|
|
|
def test_overloaded():
|
|
while True:
|
|
obj1 = m.Atype1(81)
|
|
obj2 = m.Atype2(60)
|
|
with pytest.raises(TypeError):
|
|
m.overloaded(obj1, "NotInt")
|
|
assert obj1.get() == 81 * 10 + 1 # Not disowned.
|
|
assert m.overloaded(obj1, 3) == (81 * 10 + 1) * 30 + 3
|
|
with pytest.raises(TypeError):
|
|
m.overloaded(obj2, "NotInt")
|
|
assert obj2.get() == 60 * 10 + 2 # Not disowned.
|
|
assert m.overloaded(obj2, 2) == (60 * 10 + 2) * 40 + 2
|
|
return # Comment out for manual leak checking (use `top` command).
|