Port tests to pytest
Use simple asserts and pytest's powerful introspection to make testing
simpler. This merges the old .py/.ref file pairs into simple .py files
where the expected values are right next to the code being tested.
This commit does not touch the C++ part of the code and replicates the
Python tests exactly like the old .ref-file-based approach.
diff --git a/tests/test_keep_alive.cpp b/tests/test_keep_alive.cpp
new file mode 100644
index 0000000..25f852e
--- /dev/null
+++ b/tests/test_keep_alive.cpp
@@ -0,0 +1,40 @@
+/*
+ tests/test_keep_alive.cpp -- keep_alive modifier (pybind11's version
+ of Boost.Python's with_custodian_and_ward / with_custodian_and_ward_postcall)
+
+ Copyright (c) 2016 Wenzel Jakob <wenzel.jakob@epfl.ch>
+
+ All rights reserved. Use of this source code is governed by a
+ BSD-style license that can be found in the LICENSE file.
+*/
+
+#include "pybind11_tests.h"
+
+class Child {
+public:
+ Child() { std::cout << "Allocating child." << std::endl; }
+ ~Child() { std::cout << "Releasing child." << std::endl; }
+};
+
+class Parent {
+public:
+ Parent() { std::cout << "Allocating parent." << std::endl; }
+ ~Parent() { std::cout << "Releasing parent." << std::endl; }
+ void addChild(Child *) { }
+ Child *returnChild() { return new Child(); }
+ Child *returnNullChild() { return nullptr; }
+};
+
+void init_ex_keep_alive(py::module &m) {
+ py::class_<Parent>(m, "Parent")
+ .def(py::init<>())
+ .def("addChild", &Parent::addChild)
+ .def("addChildKeepAlive", &Parent::addChild, py::keep_alive<1, 2>())
+ .def("returnChild", &Parent::returnChild)
+ .def("returnChildKeepAlive", &Parent::returnChild, py::keep_alive<1, 0>())
+ .def("returnNullChildKeepAliveChild", &Parent::returnNullChild, py::keep_alive<1, 0>())
+ .def("returnNullChildKeepAliveParent", &Parent::returnNullChild, py::keep_alive<0, 1>());
+
+ py::class_<Child>(m, "Child")
+ .def(py::init<>());
+}