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/* Copyright 2016, The libsigc++ Development Team
* Assigned to public domain. Use as you wish without restriction.
*/
#include "testutilities.h"
#include <sigc++/weak_raw_ptr.h>
#include <cassert>
namespace
{
TestUtilities* util = nullptr;
std::ostringstream result_stream;
class A : public sigc::trackable
{
public:
void something() { result_stream << "method called"; }
};
} // end anonymous namespace
void
test_weak_ptr_becomes_null()
{
const auto a = new A();
sigc::internal::weak_raw_ptr<A> raw_ptr(a);
assert(raw_ptr);
// Call something on A, via the weak_raw_ptr<>,
// just to make sure that it doesn't get optimised away:
raw_ptr->something();
util->check_result(result_stream, "method called");
delete a;
// Deleting the A should have made the weak_raw_ptr<A> become invalid.
assert(!raw_ptr);
}
void
test_weak_ptr_disconnects_self()
{
const auto a = new A();
{
sigc::internal::weak_raw_ptr<A> raw_ptr(a);
// Call something on A, via the weak_raw_ptr<>,
// just to make sure that it doesn't get optimised away:
raw_ptr->something();
util->check_result(result_stream, "method called");
}
// If the weak_raw_ptr has not asked A to stop notifying it,
// then we would expect some undefined behaviour here,
// when a tries to notify the now-destroyed weak_raw_ptr.
delete a;
}
int
main(int argc, char* argv[])
{
util = TestUtilities::get_instance();
if (!util->check_command_args(argc, argv))
return util->get_result_and_delete_instance() ? EXIT_SUCCESS : EXIT_FAILURE;
test_weak_ptr_becomes_null();
test_weak_ptr_disconnects_self();
return util->get_result_and_delete_instance() ? EXIT_SUCCESS : EXIT_FAILURE;
}
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