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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/win/scoped_comptr.h"
#include <objbase.h>
#include <shlobj.h>
#include <memory>
#include "base/win/scoped_com_initializer.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace base {
namespace win {
namespace {
struct Dummy {
Dummy() : adds(0), releases(0) { }
unsigned long AddRef() { return ++adds; }
unsigned long Release() { return ++releases; }
int adds;
int releases;
};
} // namespace
TEST(ScopedComPtrTest, ScopedComPtr) {
base::win::ScopedCOMInitializer com_initializer;
EXPECT_TRUE(com_initializer.succeeded());
ScopedComPtr<IUnknown> unk;
EXPECT_TRUE(SUCCEEDED(::CoCreateInstance(CLSID_ShellLink, nullptr, CLSCTX_ALL,
IID_PPV_ARGS(&unk))));
ScopedComPtr<IUnknown> unk2;
unk2.Attach(unk.Detach());
EXPECT_TRUE(unk.Get() == NULL);
EXPECT_TRUE(unk2.Get() != NULL);
ScopedComPtr<IMalloc> mem_alloc;
EXPECT_TRUE(SUCCEEDED(CoGetMalloc(1, mem_alloc.GetAddressOf())));
ScopedComPtr<IUnknown> qi_test;
EXPECT_HRESULT_SUCCEEDED(mem_alloc.CopyTo(IID_PPV_ARGS(&qi_test)));
EXPECT_TRUE(qi_test.Get() != NULL);
}
TEST(ScopedComPtrTest, ScopedComPtrVector) {
// Verify we don't get error C2558.
typedef ScopedComPtr<Dummy> Ptr;
std::vector<Ptr> bleh;
std::unique_ptr<Dummy> p(new Dummy);
{
Ptr p2(p.get());
EXPECT_EQ(p->adds, 1);
EXPECT_EQ(p->releases, 0);
Ptr p3 = p2;
EXPECT_EQ(p->adds, 2);
EXPECT_EQ(p->releases, 0);
p3 = p2;
EXPECT_EQ(p->adds, 3);
EXPECT_EQ(p->releases, 1);
// To avoid hitting a reallocation.
bleh.reserve(1);
bleh.push_back(p2);
EXPECT_EQ(p->adds, 4);
EXPECT_EQ(p->releases, 1);
EXPECT_EQ(bleh[0].Get(), p.get());
bleh.pop_back();
EXPECT_EQ(p->adds, 4);
EXPECT_EQ(p->releases, 2);
}
EXPECT_EQ(p->adds, 4);
EXPECT_EQ(p->releases, 4);
}
} // namespace win
} // namespace base
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