pybind11_tests.h revision 12391
1#pragma once 2#include <pybind11/pybind11.h> 3 4#if defined(_MSC_VER) && _MSC_VER < 1910 5// We get some really long type names here which causes MSVC 2015 to emit warnings 6# pragma warning(disable: 4503) // warning C4503: decorated name length exceeded, name was truncated 7#endif 8 9namespace py = pybind11; 10using namespace pybind11::literals; 11 12class test_initializer { 13 using Initializer = void (*)(py::module &); 14 15public: 16 test_initializer(Initializer init); 17 test_initializer(const char *submodule_name, Initializer init); 18}; 19 20#define TEST_SUBMODULE(name, variable) \ 21 void test_submodule_##name(py::module &); \ 22 test_initializer name(#name, test_submodule_##name); \ 23 void test_submodule_##name(py::module &variable) 24 25 26/// Dummy type which is not exported anywhere -- something to trigger a conversion error 27struct UnregisteredType { }; 28 29/// A user-defined type which is exported and can be used by any test 30class UserType { 31public: 32 UserType() = default; 33 UserType(int i) : i(i) { } 34 35 int value() const { return i; } 36 void set(int set) { i = set; } 37 38private: 39 int i = -1; 40}; 41 42/// Like UserType, but increments `value` on copy for quick reference vs. copy tests 43class IncType : public UserType { 44public: 45 using UserType::UserType; 46 IncType() = default; 47 IncType(const IncType &other) : IncType(other.value() + 1) { } 48 IncType(IncType &&) = delete; 49 IncType &operator=(const IncType &) = delete; 50 IncType &operator=(IncType &&) = delete; 51}; 52 53/// Custom cast-only type that casts to a string "rvalue" or "lvalue" depending on the cast context. 54/// Used to test recursive casters (e.g. std::tuple, stl containers). 55struct RValueCaster {}; 56NAMESPACE_BEGIN(pybind11) 57NAMESPACE_BEGIN(detail) 58template<> class type_caster<RValueCaster> { 59public: 60 PYBIND11_TYPE_CASTER(RValueCaster, _("RValueCaster")); 61 static handle cast(RValueCaster &&, return_value_policy, handle) { return py::str("rvalue").release(); } 62 static handle cast(const RValueCaster &, return_value_policy, handle) { return py::str("lvalue").release(); } 63}; 64NAMESPACE_END(detail) 65NAMESPACE_END(pybind11) 66