85 lines
2.6 KiB
C++
85 lines
2.6 KiB
C++
/* Forwarding1.test.cpp
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*
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* author: Roland Conybeare, Aug 2025
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*/
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#include "Forwarding1.hpp"
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#include "ArenaAlloc.hpp"
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#include "xo/reflect/Reflect.hpp"
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#include <catch2/catch.hpp>
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#include <cstring>
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namespace xo {
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using xo::reflect::Reflect;
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using xo::obj::Forwarding1;
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namespace gc {
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namespace {
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class DummyObject : public Object {
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public:
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explicit DummyObject(const char * data) {
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::strncpy(data_.data(), data, 128);
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}
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gp<Object> member() const { return member_; }
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void assign_member(Object * x) {
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Object::mm->assign_member(this, member_.ptr_address(), x);
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}
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TaggedPtr self_tp() const final override {
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return Reflect::make_tp(const_cast<DummyObject*>(this));
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}
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void display(std::ostream & os) const final override { os << data_; }
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virtual std::size_t _shallow_size() const final override { return sizeof(*this); }
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virtual Object * _shallow_copy() const final override { return new (Cpof(Object::mm, this)) DummyObject(*this); }
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virtual std::size_t _forward_children() final override { return _shallow_size(); }
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private:
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std::array<char, 128> data_;
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gp<Object> member_;
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};
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}
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TEST_CASE("Forwarding1", "[gc][alloc]")
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{
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bool saved = tag_config::tag_color_enabled;
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tag_config::tag_color_enabled = false;
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gp<Object> obj = new DummyObject("Well, I wasn't expecting that!");
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gp<Forwarding1> fwd = new Forwarding1(obj);
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REQUIRE(fwd->_destination() == obj.ptr());
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REQUIRE(fwd->_offset_destination(fwd.ptr()) == obj.ptr());
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REQUIRE(fwd->self_tp().td()->short_name() == "Forwarding1");
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std::stringstream ss;
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ss << fwd;
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REQUIRE(ss.str() == "<fwd :dest-td DummyObject>");
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tag_config::tag_color_enabled = saved;
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}
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TEST_CASE("IAlloc.assign_member", "[gc][alloc]")
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{
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/* not giving this nit it's own translation unit.
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*/
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gp<DummyObject> obj = new DummyObject("This also a surprise..");
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up<ArenaAlloc> arena = ArenaAlloc::make("test", 1024, false);
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Object::mm = arena.get();
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obj->assign_member(obj.ptr());
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REQUIRE(obj->member().ptr() == obj.ptr());
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}
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} /*namespace gc*/
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} /*namespace xo*/
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/* end Forwarding1.test.cpp */
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