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//
// lager - library for functional interactive c++ programs
// Copyright (C) 2017 Juan Pedro Bolivar Puente
//
// This file is part of lager.
//
// lager is free software: you can redistribute it and/or modify
// it under the terms of the MIT License, as detailed in the LICENSE
// file located at the root of this source code distribution,
// or here: <https://github.com/arximboldi/lager/blob/master/LICENSE>
//
#include <catch2/catch.hpp>
#include <lager/event_loop/manual.hpp>
#include <lager/store.hpp>
TEST_CASE("exception safety")
{
auto loop = lager::with_manual_event_loop{};
SECTION("basic")
{
CHECK_THROWS(loop.post([] { throw std::runtime_error{"noo!"}; }));
auto called = 0;
loop.post([&] { ++called; });
CHECK(called == 1);
}
SECTION("recursive")
{
auto called_a = 0;
auto called_b = 0;
auto called_c = 0;
CHECK_THROWS(loop.post([&] {
loop.post([&] { ++called_a; });
loop.post([&] { throw std::runtime_error{"noo!"}; });
loop.post([&] { ++called_b; });
CHECK(called_a == 0);
CHECK(called_b == 0);
}));
CHECK(called_a == 1);
CHECK(called_b == 0); // not called yet, queue was interrupted
loop.post([&] { ++called_c; });
CHECK(called_b == 1); // queue continued
CHECK(called_c == 1);
CHECK(called_a == 1);
}
}
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