Mypal/xpcom/tests/gtest/TestAutoRef.cpp

57 lines
1.1 KiB
C++

/* -*- 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);
}
}