knx/examples/knxPython/pybind11/tests/test_modules.cpp
2024-06-29 16:50:08 +02:00

126 lines
4.0 KiB
C++

/*
tests/test_modules.cpp -- nested modules, importing modules, and
internal references
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 "constructor_stats.h"
#include "pybind11_tests.h"
TEST_SUBMODULE(modules, m) {
// test_nested_modules
// This is intentionally "py::module" to verify it still can be used in place of "py::module_"
py::module m_sub = m.def_submodule("subsubmodule");
m_sub.def("submodule_func", []() { return "submodule_func()"; });
// test_reference_internal
class A {
public:
explicit A(int v) : v(v) { print_created(this, v); }
~A() { print_destroyed(this); }
A(const A &) { print_copy_created(this); }
A &operator=(const A &copy) {
print_copy_assigned(this);
v = copy.v;
return *this;
}
std::string toString() const { return "A[" + std::to_string(v) + "]"; }
private:
int v;
};
py::class_<A>(m_sub, "A").def(py::init<int>()).def("__repr__", &A::toString);
class B {
public:
B() { print_default_created(this); }
~B() { print_destroyed(this); }
B(const B &) { print_copy_created(this); }
B &operator=(const B &copy) {
print_copy_assigned(this);
a1 = copy.a1;
a2 = copy.a2;
return *this;
}
A &get_a1() { return a1; }
A &get_a2() { return a2; }
A a1{1};
A a2{2};
};
py::class_<B>(m_sub, "B")
.def(py::init<>())
.def("get_a1",
&B::get_a1,
"Return the internal A 1",
py::return_value_policy::reference_internal)
.def("get_a2",
&B::get_a2,
"Return the internal A 2",
py::return_value_policy::reference_internal)
.def_readwrite("a1", &B::a1) // def_readonly uses an internal
// reference return policy by default
.def_readwrite("a2", &B::a2);
// This is intentionally "py::module" to verify it still can be used in place of "py::module_"
m.attr("OD") = py::module::import("collections").attr("OrderedDict");
// test_duplicate_registration
// Registering two things with the same name
m.def("duplicate_registration", []() {
class Dupe1 {};
class Dupe2 {};
class Dupe3 {};
class DupeException {};
// Go ahead and leak, until we have a non-leaking py::module_ constructor
auto dm
= py::module_::create_extension_module("dummy", nullptr, new py::module_::module_def);
auto failures = py::list();
py::class_<Dupe1>(dm, "Dupe1");
py::class_<Dupe2>(dm, "Dupe2");
dm.def("dupe1_factory", []() { return Dupe1(); });
py::exception<DupeException>(dm, "DupeException");
try {
py::class_<Dupe1>(dm, "Dupe1");
failures.append("Dupe1 class");
} catch (std::runtime_error &) {
}
try {
dm.def("Dupe1", []() { return Dupe1(); });
failures.append("Dupe1 function");
} catch (std::runtime_error &) {
}
try {
py::class_<Dupe3>(dm, "dupe1_factory");
failures.append("dupe1_factory");
} catch (std::runtime_error &) {
}
try {
py::exception<Dupe3>(dm, "Dupe2");
failures.append("Dupe2");
} catch (std::runtime_error &) {
}
try {
dm.def("DupeException", []() { return 30; });
failures.append("DupeException1");
} catch (std::runtime_error &) {
}
try {
py::class_<DupeException>(dm, "DupeException");
failures.append("DupeException2");
} catch (std::runtime_error &) {
}
return failures;
});
m.def("def_submodule", [](py::module_ m, const char *name) { return m.def_submodule(name); });
}