#include "pch.h"

import std;

import winrt.Windows.Foundation;

using namespace winrt;

using namespace Windows::Foundation;

IAsyncAction do_nothing_async()

{

co_return;

}

IAsyncOperation<int> return_42_async()

{

co_return 42;

}

IAsyncOperation<hstring> return_string_async()

{

co_return L"module coroutine";

}

IAsyncAction chain_async()

{

auto result = co_await return_string_async();

REQUIRE(!result.empty());

}

IAsyncOperation<int> slow_operation()

{

co_await resume_after(std::chrono::hours(1));

co_return 0;

}

TEST_CASE("module_async_action")

{

auto action = do_nothing_async();

action.get();

REQUIRE(action.Status() == AsyncStatus::Completed);

}

TEST_CASE("module_async_operation")

{

REQUIRE(return_42_async().get() == 42);

}

TEST_CASE("module_async_chain")

{

chain_async().get();

}

TEST_CASE("module_async_cancel")

{

auto op = slow_operation();

op.Cancel();

REQUIRE(op.Status() == AsyncStatus::Canceled);

}