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/* Copyright 2002 - 2016, The libsigc++ Development Team
* Assigned to public domain. Use as you wish without restriction.
*/
#include "testutilities.h"
#include <sigc++/trackable.h>
#include <sigc++/signal.h>
#include <memory>
namespace
{
TestUtilities* util = nullptr;
std::ostringstream result_stream;
int
foo(int i)
{
result_stream << "foo(int " << i << ") ";
return 1;
}
struct A : public sigc::trackable
{
int foo(int i)
{
result_stream << "A::foo(int " << i << ") ";
return 1;
}
void bar(std::string& str)
{
result_stream << "A::foo(string '" << str << "') ";
str = "foo was here";
}
};
void
test_empty_signal()
{
// signal
sigc::signal<int(int)> sig;
// emit empty signal
sig(0);
util->check_result(result_stream, "");
}
void
test_simple()
{
sigc::signal<int(int)> sig;
sig.connect([](int i) { return foo(i); });
sig(1);
util->check_result(result_stream, "foo(int 1) ");
}
int
bar(float i)
{
result_stream << "bar(float " << i << ") ";
return 1;
}
template<typename T_signal>
void
test_auto_disconnection()
{
// signal
T_signal sig;
// connect some slots before emitting & test auto-disconnection
{
A a;
sig.connect(sigc::ptr_fun(&foo));
sig.connect_first(sigc::mem_fun(a, &A::foo));
sig.connect_first(sigc::ptr_fun(&bar));
sig(1);
result_stream << sig.size();
util->check_result(result_stream, "bar(float 1) A::foo(int 1) foo(int 1) 3");
} // a dies => auto-disconnect
sig(2);
result_stream << sig.size();
util->check_result(result_stream, "bar(float 2) foo(int 2) 2");
}
void
test_reference()
{
// test reference
A a;
std::string str("guest book");
sigc::signal<void(std::string&)> sigstr;
sigstr.connect(sigc::mem_fun(a, &A::bar));
sigstr(str);
result_stream << str;
util->check_result(result_stream, "A::foo(string 'guest book') foo was here");
}
void
test_make_slot()
{
// test make_slot()
sigc::signal<int(int)> sig;
sig.connect(sigc::ptr_fun(&foo));
sig.connect_first([](float i) { return bar(i); });
sig.connect(sigc::ptr_fun(&foo));
sigc::signal<int(int)> sig2;
sig2.connect(sig.make_slot());
sig2(3);
util->check_result(result_stream, "bar(float 3) foo(int 3) foo(int 3) ");
// Delete a trackable_signal that has been connected to sig2.
sig2.clear();
sig2.connect(sigc::ptr_fun(&bar));
auto sig3 = std::make_unique<sigc::trackable_signal<int(int)>>();
sig3->connect(sigc::ptr_fun(&foo));
sig2.connect(sig3->make_slot());
sig2(2);
sig3.reset();
sig2(42);
util->check_result(result_stream, "bar(float 2) foo(int 2) bar(float 42) ");
}
void
test_clear_called_in_signal_handler()
{
sigc::signal<void()> sig;
sig.connect([]() { result_stream << ", slot 1, "; });
sig.connect(
[&sig]()
{
sig.clear();
result_stream << "slot 2, ";
});
sig.connect([]() { result_stream << "slot 3, "; });
result_stream << sig.size();
sig.emit();
result_stream << sig.size();
sig.emit();
util->check_result(result_stream, "3, slot 1, slot 2, 0");
}
void
test_clear_called_outside_signal_handler()
{
sigc::signal<void()> sig;
sig.connect([]() { result_stream << ", slot 1, "; });
sig.connect([]() { result_stream << "slot 2, "; });
sig.connect([]() { result_stream << "slot 3, "; });
result_stream << sig.size();
sig.emit();
sig.clear();
result_stream << sig.size();
sig.emit();
util->check_result(result_stream, "3, slot 1, slot 2, slot 3, 0");
}
} // end anonymous namespace
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_empty_signal();
test_simple();
test_auto_disconnection<sigc::signal<int(int)>>();
test_auto_disconnection<sigc::trackable_signal<int(int)>>();
test_reference();
test_make_slot();
test_clear_called_in_signal_handler();
test_clear_called_outside_signal_handler();
return util->get_result_and_delete_instance() ? EXIT_SUCCESS : EXIT_FAILURE;
}
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