112 lines
3.0 KiB
C++
112 lines
3.0 KiB
C++
// Copyright (c) 2011 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/win/scoped_comptr.h"
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#include <shlobj.h>
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#include "base/memory/scoped_ptr.h"
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#include "base/win/scoped_com_initializer.h"
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#include "testing/gtest/include/gtest/gtest.h"
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namespace base {
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namespace win {
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namespace {
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struct Dummy {
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Dummy() : adds(0), releases(0) { }
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void AddRef() { ++adds; }
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void Release() { ++releases; }
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int adds;
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int releases;
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};
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extern const IID dummy_iid;
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const IID dummy_iid = { 0x12345678u, 0x1234u, 0x5678u, 01, 23, 45, 67, 89,
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01, 23, 45 };
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} // namespace
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TEST(ScopedComPtrTest, ScopedComPtr) {
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EXPECT_TRUE(memcmp(&ScopedComPtr<IUnknown>::iid(), &IID_IUnknown,
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sizeof(IID)) == 0);
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base::win::ScopedCOMInitializer com_initializer;
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EXPECT_TRUE(com_initializer.succeeded());
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ScopedComPtr<IUnknown> unk;
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EXPECT_TRUE(SUCCEEDED(unk.CreateInstance(CLSID_ShellLink)));
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ScopedComPtr<IUnknown> unk2;
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unk2.Attach(unk.Detach());
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EXPECT_TRUE(unk == NULL);
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EXPECT_TRUE(unk2 != NULL);
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ScopedComPtr<IMalloc> mem_alloc;
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EXPECT_TRUE(SUCCEEDED(CoGetMalloc(1, mem_alloc.Receive())));
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ScopedComPtr<IUnknown> qi_test;
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EXPECT_HRESULT_SUCCEEDED(mem_alloc.QueryInterface(IID_IUnknown,
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reinterpret_cast<void**>(qi_test.Receive())));
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EXPECT_TRUE(qi_test.get() != NULL);
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qi_test.Release();
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// test ScopedComPtr& constructor
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ScopedComPtr<IMalloc> copy1(mem_alloc);
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EXPECT_TRUE(copy1.IsSameObject(mem_alloc));
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EXPECT_FALSE(copy1.IsSameObject(unk2)); // unk2 is valid but different
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EXPECT_FALSE(copy1.IsSameObject(unk)); // unk is NULL
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IMalloc* naked_copy = copy1.Detach();
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copy1 = naked_copy; // Test the =(T*) operator.
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naked_copy->Release();
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copy1.Release();
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EXPECT_FALSE(copy1.IsSameObject(unk2)); // unk2 is valid, copy1 is not
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// test Interface* constructor
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ScopedComPtr<IMalloc> copy2(static_cast<IMalloc*>(mem_alloc));
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EXPECT_TRUE(copy2.IsSameObject(mem_alloc));
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EXPECT_TRUE(SUCCEEDED(unk.QueryFrom(mem_alloc)));
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EXPECT_TRUE(unk != NULL);
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unk.Release();
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EXPECT_TRUE(unk == NULL);
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EXPECT_TRUE(unk.IsSameObject(copy1)); // both are NULL
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}
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TEST(ScopedComPtrTest, ScopedComPtrVector) {
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// Verify we don't get error C2558.
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typedef ScopedComPtr<Dummy, &dummy_iid> Ptr;
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std::vector<Ptr> bleh;
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scoped_ptr<Dummy> p(new Dummy);
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{
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Ptr p2(p.get());
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EXPECT_EQ(p->adds, 1);
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EXPECT_EQ(p->releases, 0);
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Ptr p3 = p2;
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EXPECT_EQ(p->adds, 2);
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EXPECT_EQ(p->releases, 0);
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p3 = p2;
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EXPECT_EQ(p->adds, 3);
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EXPECT_EQ(p->releases, 1);
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// To avoid hitting a reallocation.
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bleh.reserve(1);
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bleh.push_back(p2);
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EXPECT_EQ(p->adds, 4);
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EXPECT_EQ(p->releases, 1);
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EXPECT_EQ(bleh[0], p.get());
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bleh.pop_back();
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EXPECT_EQ(p->adds, 4);
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EXPECT_EQ(p->releases, 2);
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}
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EXPECT_EQ(p->adds, 4);
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EXPECT_EQ(p->releases, 4);
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}
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} // namespace win
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} // namespace base
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