TestLinkedList.cpp

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/* -*- 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);