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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/safe_queue.hpp>
#include <lager/store.hpp>
#include "example/counter/counter.hpp"
TEST_CASE("basic")
{
auto queue = lager::safe_queue_event_loop{};
auto store = lager::make_store<counter::action>(
counter::model{}, lager::with_safe_queue_event_loop{queue});
store.dispatch(counter::increment_action{});
CHECK(store->value == 0);
queue.step();
CHECK(store->value == 1);
}
TEST_CASE("threads")
{
auto queue = lager::safe_queue_event_loop{};
auto store = lager::make_store<counter::action>(
counter::model{}, lager::with_safe_queue_event_loop{queue});
auto threads = std::vector<std::thread>{};
for (auto i = 0; i < 100; ++i) {
store.dispatch(counter::increment_action{});
threads.push_back(
std::thread([&] { store.dispatch(counter::increment_action{}); }));
}
CHECK(store->value == 0);
for (auto&& t : threads)
t.join();
queue.step();
CHECK(store->value == 200);
}
TEST_CASE("exception")
{
auto called = 0;
auto loop = lager::safe_queue_event_loop{};
loop.post([&] { throw std::runtime_error{"noo!"}; });
loop.post([&] { ++called; });
CHECK_THROWS(loop.step());
CHECK(called == 0);
loop.step();
CHECK(called == 1);
}
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