94 lines
2.7 KiB
Python
94 lines
2.7 KiB
Python
import pickle
|
|
import re
|
|
|
|
import pytest
|
|
|
|
import env
|
|
from pybind11_tests import pickling as m
|
|
|
|
|
|
def test_pickle_simple_callable():
|
|
assert m.simple_callable() == 20220426
|
|
if env.PYPY:
|
|
serialized = pickle.dumps(m.simple_callable)
|
|
deserialized = pickle.loads(serialized)
|
|
assert deserialized() == 20220426
|
|
else:
|
|
# To document broken behavior: currently it fails universally with
|
|
# all C Python versions.
|
|
with pytest.raises(TypeError) as excinfo:
|
|
pickle.dumps(m.simple_callable)
|
|
assert re.search("can.*t pickle .*PyCapsule.* object", str(excinfo.value))
|
|
|
|
|
|
@pytest.mark.parametrize("cls_name", ["Pickleable", "PickleableNew"])
|
|
def test_roundtrip(cls_name):
|
|
cls = getattr(m, cls_name)
|
|
p = cls("test_value")
|
|
p.setExtra1(15)
|
|
p.setExtra2(48)
|
|
|
|
data = pickle.dumps(p, 2) # Must use pickle protocol >= 2
|
|
p2 = pickle.loads(data)
|
|
assert p2.value() == p.value()
|
|
assert p2.extra1() == p.extra1()
|
|
assert p2.extra2() == p.extra2()
|
|
|
|
|
|
@pytest.mark.xfail("env.PYPY")
|
|
@pytest.mark.parametrize("cls_name", ["PickleableWithDict", "PickleableWithDictNew"])
|
|
def test_roundtrip_with_dict(cls_name):
|
|
cls = getattr(m, cls_name)
|
|
p = cls("test_value")
|
|
p.extra = 15
|
|
p.dynamic = "Attribute"
|
|
|
|
data = pickle.dumps(p, pickle.HIGHEST_PROTOCOL)
|
|
p2 = pickle.loads(data)
|
|
assert p2.value == p.value
|
|
assert p2.extra == p.extra
|
|
assert p2.dynamic == p.dynamic
|
|
|
|
|
|
def test_enum_pickle():
|
|
from pybind11_tests import enums as e
|
|
|
|
data = pickle.dumps(e.EOne, 2)
|
|
assert e.EOne == pickle.loads(data)
|
|
|
|
|
|
#
|
|
# exercise_trampoline
|
|
#
|
|
class SimplePyDerived(m.SimpleBase):
|
|
pass
|
|
|
|
|
|
def test_roundtrip_simple_py_derived():
|
|
p = SimplePyDerived()
|
|
p.num = 202
|
|
p.stored_in_dict = 303
|
|
data = pickle.dumps(p, pickle.HIGHEST_PROTOCOL)
|
|
p2 = pickle.loads(data)
|
|
assert isinstance(p2, SimplePyDerived)
|
|
assert p2.num == 202
|
|
assert p2.stored_in_dict == 303
|
|
|
|
|
|
def test_roundtrip_simple_cpp_derived():
|
|
p = m.make_SimpleCppDerivedAsBase()
|
|
assert m.check_dynamic_cast_SimpleCppDerived(p)
|
|
p.num = 404
|
|
if not env.PYPY:
|
|
# To ensure that this unit test is not accidentally invalidated.
|
|
with pytest.raises(AttributeError):
|
|
# Mimics the `setstate` C++ implementation.
|
|
setattr(p, "__dict__", {}) # noqa: B010
|
|
data = pickle.dumps(p, pickle.HIGHEST_PROTOCOL)
|
|
p2 = pickle.loads(data)
|
|
assert isinstance(p2, m.SimpleBase)
|
|
assert p2.num == 404
|
|
# Issue #3062: pickleable base C++ classes can incur object slicing
|
|
# if derived typeid is not registered with pybind11
|
|
assert not m.check_dynamic_cast_SimpleCppDerived(p2)
|