/* -*- 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/LinkedList.h"

#include "mozilla/RefPtr.h"

using mozilla::AutoCleanLinkedList;

using mozilla::LinkedList;

using mozilla::LinkedListElement;

class PtrClass : public LinkedListElement<PtrClass>

{

public:

  bool* mResult;

  explicit PtrClass(bool* result)

    : mResult(result)

  {

    EXPECT_TRUE(!*mResult);

  }

  virtual ~PtrClass() {

    *mResult = true;

  }

};

class InheritedPtrClass : public PtrClass {

public:

  bool* mInheritedResult;

  InheritedPtrClass(bool* result, bool* inheritedResult)

    : PtrClass(result)

    , mInheritedResult(inheritedResult)

    {

      EXPECT_TRUE(!*mInheritedResult);

    }

  virtual ~InheritedPtrClass() {

    *mInheritedResult = true;

  }

};

TEST(LinkedList, AutoCleanLinkedList)

{

    bool rv1 = false;

    bool rv2 = false;

    bool rv3 = false;

    {

        AutoCleanLinkedList<PtrClass> list;

        list.insertBack(new PtrClass(&rv1));

        list.insertBack(new InheritedPtrClass(&rv2, &rv3));

    }

    EXPECT_TRUE(rv1);

    EXPECT_TRUE(rv2);

    EXPECT_TRUE(rv3);

}

class CountedClass final : public LinkedListElement<RefPtr<CountedClass>>

{

public:

  int mCount;

  void AddRef() { mCount++; }

  void Release() { mCount--; }

  CountedClass()

    : mCount(0)

    {

    }

  ~CountedClass() { EXPECT_TRUE(mCount == 0); }

};

TEST(LinkedList, AutoCleanLinkedListRefPtr)

{

    RefPtr<CountedClass> elt1 = new CountedClass;

    CountedClass* elt2 = new CountedClass;

    {

        AutoCleanLinkedList<RefPtr<CountedClass>> list;

        list.insertBack(elt1);

        list.insertBack(elt2);

        EXPECT_TRUE(elt1->mCount == 2);

        EXPECT_TRUE(elt2->mCount == 1);

    }

    EXPECT_TRUE(elt1->mCount == 1);

    EXPECT_TRUE(elt2->mCount == 0);

}