/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

// vim:cindent:ts=4:et:sw=4:

/* 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 "nsAutoRef.h"

#include "gtest/gtest.h"

struct TestObjectA {

public:

  TestObjectA() : mRefCnt(0) {

  }

  ~TestObjectA() {

    EXPECT_EQ(mRefCnt, 0);

  }

public:

  int mRefCnt;

};

template <>

class nsAutoRefTraits<TestObjectA> : public nsPointerRefTraits<TestObjectA>

{

public:

  static int mTotalRefsCnt;

  static void Release(TestObjectA *ptr) {

    ptr->mRefCnt--;

    if (ptr->mRefCnt == 0) {

      delete ptr;

    }

  }

  static void AddRef(TestObjectA *ptr) {

    ptr->mRefCnt++;

  }

};

int nsAutoRefTraits<TestObjectA>::mTotalRefsCnt = 0;

TEST(AutoRef, Assignment)

{

  {

    nsCountedRef<TestObjectA> a(new TestObjectA());

    ASSERT_EQ(a->mRefCnt, 1);

    nsCountedRef<TestObjectA> b;

    ASSERT_EQ(b.get(), nullptr);

    a.swap(b);

    ASSERT_EQ(b->mRefCnt, 1);

    ASSERT_EQ(a.get(), nullptr);

  }

}