gecko-dev/xpcom/tests/TestAutoRef.cpp

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/* -*- 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 "TestHarness.h"
#define TEST(aCondition, aMsg) \
if (!(aCondition)) { fail("TestAutoRef: "#aMsg); exit(1); }
struct TestObjectA {
public:
TestObjectA() : mRefCnt(0) {
}
~TestObjectA() {
TEST(mRefCnt == 0, "mRefCnt in destructor");
}
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;
int main()
{
{
nsCountedRef<TestObjectA> a(new TestObjectA());
TEST(a->mRefCnt == 1, "nsCountedRef instantiation with valid RawRef");
nsCountedRef<TestObjectA> b;
TEST(b.get() == nullptr, "nsCountedRef instantiation with invalid RawRef");
a.swap(b);
TEST(b->mRefCnt, "nsAutoRef::swap() t1");
TEST(a.get() == nullptr, "nsAutoRef::swap() t2");
}
TEST(true, "All tests pass");
return 0;
}