NazaraEngine/tests/Engine/Core/SignalTest.cpp

49 lines
849 B
C++

#include <Nazara/Core/Signal.hpp>
#include <catch2/catch.hpp>
struct Incrementer
{
void increment(int* inc)
{
*inc += 1;
}
};
void increment(int* inc)
{
*inc += 1;
}
SCENARIO("Signal", "[CORE][SIGNAL]")
{
GIVEN("A signal")
{
Nz::Signal<int*> signal;
WHEN("We connection different callbacks")
{
auto connection = signal.Connect(increment);
signal.Connect([](int* inc){ *inc += 1; });
Incrementer incrementer;
signal.Connect(incrementer, &Incrementer::increment);
THEN("The call of signal with inc = 0 must return 3")
{
int inc = 0;
signal(&inc);
REQUIRE(inc == 3);
}
AND_THEN("When we disconnect one function, there should be only two listeners")
{
connection.Disconnect();
REQUIRE(!connection.IsConnected());
int inc = 0;
signal(&inc);
REQUIRE(inc == 2);
}
}
}
}