/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "gtest/gtest.h"

#include "mozilla/SharedThreadPool.h"

#include "mozilla/StateWatching.h"

#include "mozilla/TaskQueue.h"

#include "mozilla/Unused.h"

#include "nsISupportsImpl.h"

#include "VideoUtils.h"

namespace TestStateWatching {

using namespace mozilla;

struct Foo {

  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(Foo)

  void Notify() { mNotified = true; }

  bool mNotified = false;

private:

  ~Foo() {}

};

TEST(WatchManager, Shutdown)

{

  RefPtr<TaskQueue> queue = new TaskQueue(

    GetMediaThreadPool(MediaThreadType::PLAYBACK));

  RefPtr<Foo> p = new Foo;

  WatchManager<Foo> manager(p, queue);

  Watchable<bool> notifier(false, "notifier");

  Unused << queue->Dispatch(NS_NewRunnableFunction(

    "TestStateWatching::WatchManager_Shutdown_Test::TestBody", [&]() {

      manager.Watch(notifier, &Foo::Notify);

      notifier = true;    // Trigger the call to Foo::Notify().

      manager.Shutdown(); // Shutdown() should cancel the call.

    }));

  queue->BeginShutdown();

  queue->AwaitShutdownAndIdle();

  EXPECT_FALSE(p->mNotified);

}

} // namespace TestStateWatching