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391c75447d
This udpates all the remaining tests to the new test suite code and comment styles started in #898. For the most part, the test coverage here is unchanged, with a few minor exceptions as noted below. - test_constants_and_functions: this adds more overload tests with overloads with different number of arguments for more comprehensive overload_cast testing. The test style conversion broke the overload tests under MSVC 2015, prompting the additional tests while looking for a workaround. - test_eigen: this dropped the unused functions `get_cm_corners` and `get_cm_corners_const`--these same tests were duplicates of the same things provided (and used) via ReturnTester methods. - test_opaque_types: this test had a hidden dependence on ExampleMandA which is now fixed by using the global UserType which suffices for the relevant test. - test_methods_and_attributes: this required some additions to UserType to make it usable as a replacement for the test's previous SimpleType: UserType gained a value mutator, and the `value` property is not mutable (it was previously readonly). Some overload tests were also added to better test overload_cast (as described above). - test_numpy_array: removed the untemplated mutate_data/mutate_data_t: the templated versions with an empty parameter pack expand to the same thing. - test_stl: this was already mostly in the new style; this just tweaks things a bit, localizing a class, and adding some missing `// test_whatever` comments. - test_virtual_functions: like `test_stl`, this was mostly in the new test style already, but needed some `// test_whatever` comments. This commit also moves the inherited virtual example code to the end of the file, after the main set of tests (since it is less important than the other tests, and rather length); it also got renamed to `test_inherited_virtuals` (from `test_inheriting_repeat`) because it tests both inherited virtual approaches, not just the repeat approach.
84 lines
3.0 KiB
C++
84 lines
3.0 KiB
C++
/*
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tests/test_pickling.cpp -- pickle support
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Copyright (c) 2016 Wenzel Jakob <wenzel.jakob@epfl.ch>
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All rights reserved. Use of this source code is governed by a
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BSD-style license that can be found in the LICENSE file.
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*/
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#include "pybind11_tests.h"
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TEST_SUBMODULE(pickling, m) {
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// test_roundtrip
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class Pickleable {
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public:
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Pickleable(const std::string &value) : m_value(value) { }
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const std::string &value() const { return m_value; }
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void setExtra1(int extra1) { m_extra1 = extra1; }
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void setExtra2(int extra2) { m_extra2 = extra2; }
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int extra1() const { return m_extra1; }
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int extra2() const { return m_extra2; }
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private:
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std::string m_value;
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int m_extra1 = 0;
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int m_extra2 = 0;
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};
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py::class_<Pickleable>(m, "Pickleable")
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.def(py::init<std::string>())
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.def("value", &Pickleable::value)
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.def("extra1", &Pickleable::extra1)
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.def("extra2", &Pickleable::extra2)
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.def("setExtra1", &Pickleable::setExtra1)
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.def("setExtra2", &Pickleable::setExtra2)
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// For details on the methods below, refer to
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// http://docs.python.org/3/library/pickle.html#pickling-class-instances
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.def("__getstate__", [](const Pickleable &p) {
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/* Return a tuple that fully encodes the state of the object */
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return py::make_tuple(p.value(), p.extra1(), p.extra2());
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})
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.def("__setstate__", [](Pickleable &p, py::tuple t) {
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if (t.size() != 3)
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throw std::runtime_error("Invalid state!");
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/* Invoke the constructor (need to use in-place version) */
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new (&p) Pickleable(t[0].cast<std::string>());
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/* Assign any additional state */
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p.setExtra1(t[1].cast<int>());
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p.setExtra2(t[2].cast<int>());
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});
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#if !defined(PYPY_VERSION)
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// test_roundtrip_with_dict
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class PickleableWithDict {
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public:
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PickleableWithDict(const std::string &value) : value(value) { }
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std::string value;
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int extra;
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};
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py::class_<PickleableWithDict>(m, "PickleableWithDict", py::dynamic_attr())
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.def(py::init<std::string>())
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.def_readwrite("value", &PickleableWithDict::value)
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.def_readwrite("extra", &PickleableWithDict::extra)
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.def("__getstate__", [](py::object self) {
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/* Also include __dict__ in state */
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return py::make_tuple(self.attr("value"), self.attr("extra"), self.attr("__dict__"));
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})
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.def("__setstate__", [](py::object self, py::tuple t) {
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if (t.size() != 3)
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throw std::runtime_error("Invalid state!");
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/* Cast and construct */
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auto& p = self.cast<PickleableWithDict&>();
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new (&p) PickleableWithDict(t[0].cast<std::string>());
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/* Assign C++ state */
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p.extra = t[1].cast<int>();
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/* Assign Python state */
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self.attr("__dict__") = t[2];
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});
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#endif
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}
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