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#include "cru/base/Event2.h"
#include <catch2/catch_test_macros.hpp>
using cru::Event2;
TEST_CASE("Event2", "[event2]") {
Event2 event;
int counter = 0;
auto handler = [&counter] { counter++; };
auto token = event.AddHandler(handler);
auto handler2 = [&counter](decltype(event)::Context* context) { counter++; };
SECTION("two handlers should work.") {
event.Raise();
REQUIRE(counter == 1);
event.Raise();
REQUIRE(counter == 2);
event.AddHandler(handler2);
event.Raise();
REQUIRE(counter == 4);
}
SECTION("handler revoker should work.") {
token.RevokeHandler();
event.Raise();
REQUIRE(counter == 0);
token = event.AddHandler(handler);
event.AddHandler(handler2);
event.Raise();
REQUIRE(counter == 2);
token.RevokeHandler();
event.Raise();
REQUIRE(counter == 3);
}
SECTION("stop handling should work.") {
auto short_circuit_handler = [&counter](decltype(event)::Context* context) {
context->SetStopHandling();
};
event.AddHandler(short_circuit_handler);
event.AddHandler(handler2);
event.Raise();
REQUIRE(counter == 1);
}
}
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