1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "base/win/scoped_comptr.h"
6
7 #include <shlobj.h>
8
9 #include "base/memory/scoped_ptr.h"
10 #include "base/win/scoped_com_initializer.h"
11 #include "testing/gtest/include/gtest/gtest.h"
12
13 namespace base {
14 namespace win {
15
16 namespace {
17
18 struct Dummy {
Dummybase::win::__anonffbca8a10111::Dummy19 Dummy() : adds(0), releases(0) { }
AddRefbase::win::__anonffbca8a10111::Dummy20 void AddRef() { ++adds; }
Releasebase::win::__anonffbca8a10111::Dummy21 void Release() { ++releases; }
22
23 int adds;
24 int releases;
25 };
26
27 extern const IID dummy_iid;
28 const IID dummy_iid = { 0x12345678u, 0x1234u, 0x5678u, 01, 23, 45, 67, 89,
29 01, 23, 45 };
30
31 } // namespace
32
TEST(ScopedComPtrTest,ScopedComPtr)33 TEST(ScopedComPtrTest, ScopedComPtr) {
34 EXPECT_TRUE(memcmp(&ScopedComPtr<IUnknown>::iid(), &IID_IUnknown,
35 sizeof(IID)) == 0);
36
37 base::win::ScopedCOMInitializer com_initializer;
38 EXPECT_TRUE(com_initializer.succeeded());
39
40 ScopedComPtr<IUnknown> unk;
41 EXPECT_TRUE(SUCCEEDED(unk.CreateInstance(CLSID_ShellLink)));
42 ScopedComPtr<IUnknown> unk2;
43 unk2.Attach(unk.Detach());
44 EXPECT_TRUE(unk == NULL);
45 EXPECT_TRUE(unk2 != NULL);
46
47 ScopedComPtr<IMalloc> mem_alloc;
48 EXPECT_TRUE(SUCCEEDED(CoGetMalloc(1, mem_alloc.Receive())));
49
50 ScopedComPtr<IUnknown> qi_test;
51 EXPECT_HRESULT_SUCCEEDED(mem_alloc.QueryInterface(IID_IUnknown,
52 reinterpret_cast<void**>(qi_test.Receive())));
53 EXPECT_TRUE(qi_test.get() != NULL);
54 qi_test.Release();
55
56 // test ScopedComPtr& constructor
57 ScopedComPtr<IMalloc> copy1(mem_alloc);
58 EXPECT_TRUE(copy1.IsSameObject(mem_alloc));
59 EXPECT_FALSE(copy1.IsSameObject(unk2)); // unk2 is valid but different
60 EXPECT_FALSE(copy1.IsSameObject(unk)); // unk is NULL
61
62 IMalloc* naked_copy = copy1.Detach();
63 copy1 = naked_copy; // Test the =(T*) operator.
64 naked_copy->Release();
65
66 copy1.Release();
67 EXPECT_FALSE(copy1.IsSameObject(unk2)); // unk2 is valid, copy1 is not
68
69 // test Interface* constructor
70 ScopedComPtr<IMalloc> copy2(static_cast<IMalloc*>(mem_alloc));
71 EXPECT_TRUE(copy2.IsSameObject(mem_alloc));
72
73 EXPECT_TRUE(SUCCEEDED(unk.QueryFrom(mem_alloc)));
74 EXPECT_TRUE(unk != NULL);
75 unk.Release();
76 EXPECT_TRUE(unk == NULL);
77 EXPECT_TRUE(unk.IsSameObject(copy1)); // both are NULL
78 }
79
TEST(ScopedComPtrTest,ScopedComPtrVector)80 TEST(ScopedComPtrTest, ScopedComPtrVector) {
81 // Verify we don't get error C2558.
82 typedef ScopedComPtr<Dummy, &dummy_iid> Ptr;
83 std::vector<Ptr> bleh;
84
85 scoped_ptr<Dummy> p(new Dummy);
86 {
87 Ptr p2(p.get());
88 EXPECT_EQ(p->adds, 1);
89 EXPECT_EQ(p->releases, 0);
90 Ptr p3 = p2;
91 EXPECT_EQ(p->adds, 2);
92 EXPECT_EQ(p->releases, 0);
93 p3 = p2;
94 EXPECT_EQ(p->adds, 3);
95 EXPECT_EQ(p->releases, 1);
96 // To avoid hitting a reallocation.
97 bleh.reserve(1);
98 bleh.push_back(p2);
99 EXPECT_EQ(p->adds, 4);
100 EXPECT_EQ(p->releases, 1);
101 EXPECT_EQ(bleh[0], p.get());
102 bleh.pop_back();
103 EXPECT_EQ(p->adds, 4);
104 EXPECT_EQ(p->releases, 2);
105 }
106 EXPECT_EQ(p->adds, 4);
107 EXPECT_EQ(p->releases, 4);
108 }
109
110 } // namespace win
111 } // namespace base
112