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import py, os, sys
from .support import setup_make
currpath = py.path.local(__file__).dirpath()
test_dct = str(currpath.join("cpp11featuresDict.so"))
def setup_module(mod):
setup_make("cpp11featuresDict.so")
class AppTestCPP11FEATURES:
spaceconfig = dict(usemodules=['_cppyy', '_rawffi', 'itertools'])
def setup_class(cls):
cls.w_test_dct = cls.space.newtext(test_dct)
cls.w_example01 = cls.space.appexec([], """():
import ctypes, _cppyy
_cppyy._post_import_startup()
return ctypes.CDLL(%r, ctypes.RTLD_GLOBAL)""" % (test_dct, ))
def test01_shared_ptr(self):
"""Usage and access of std::shared_ptr<>"""
import _cppyy
TestSharedPtr = _cppyy.gbl.TestSharedPtr
create_shared_ptr_instance = _cppyy.gbl.create_shared_ptr_instance
# proper memory accounting
assert TestSharedPtr.s_counter == 0
ptr1 = create_shared_ptr_instance()
assert ptr1
assert not not ptr1
assert TestSharedPtr.s_counter == 1
ptr2 = create_shared_ptr_instance()
assert ptr2
assert not not ptr2
assert TestSharedPtr.s_counter == 2
del ptr2
import gc; gc.collect()
assert TestSharedPtr.s_counter == 1
del ptr1
gc.collect()
assert TestSharedPtr.s_counter == 0
def test02_nullptr(self):
"""Allow the programmer to pass NULL in certain cases"""
import _cppyy
# test existence
nullptr = _cppyy.nullptr
assert not hasattr(_cppyy.gbl, 'nullptr')
# usage is tested in datatypes.py:test15_nullptr_passing
def test03_move(self):
"""Move construction, assignment, and methods"""
import _cppyy
def moveit(T):
std = _cppyy.gbl.std
# move constructor
i1 = T()
assert T.s_move_counter == 0
i2 = T(i1) # cctor
assert T.s_move_counter == 0
i3 = T(std.move(T())) # Note: in CPython can check for
# ref-count == 1, so no move() needed
assert T.s_move_counter == 1
i4 = T(std.move(i1))
assert T.s_move_counter == 2
# move assignment
i4.__assign__(i2)
assert T.s_move_counter == 2
i4.__assign__(std.move(T())) # same note as above move ctor
assert T.s_move_counter == 3
i4.__assign__(std.move(i2))
assert T.s_move_counter == 4
# order of moving and normal functions are reversed in 1, 2, for
# overload resolution testing
moveit(_cppyy.gbl.TestMoving1)
moveit(_cppyy.gbl.TestMoving2)
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