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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/enum_variant.h" | |
6 | |
7 #include "base/win/scoped_com_initializer.h" | |
8 #include "testing/gtest/include/gtest/gtest.h" | |
9 | |
10 namespace base { | |
11 namespace win { | |
12 | |
13 TEST(EnumVariantTest, EmptyEnumVariant) { | |
14 ScopedCOMInitializer com_initializer; | |
15 | |
16 EnumVariant* ev = new EnumVariant(0); | |
17 ev->AddRef(); | |
18 | |
19 IUnknown* iunknown; | |
20 EXPECT_TRUE(SUCCEEDED( | |
21 ev->QueryInterface(IID_IUnknown, reinterpret_cast<void**>(&iunknown)))); | |
22 iunknown->Release(); | |
23 | |
24 IEnumVARIANT* ienumvariant; | |
25 EXPECT_TRUE(SUCCEEDED( | |
26 ev->QueryInterface(IID_IEnumVARIANT, | |
27 reinterpret_cast<void**>(&ienumvariant)))); | |
28 EXPECT_EQ(ev, ienumvariant); | |
29 ienumvariant->Release(); | |
30 | |
31 VARIANT out_element; | |
32 ULONG out_received = 0; | |
33 EXPECT_EQ(S_FALSE, ev->Next(1, &out_element, &out_received)); | |
34 EXPECT_EQ(0, out_received); | |
35 | |
36 EXPECT_EQ(S_FALSE, ev->Skip(1)); | |
37 | |
38 EXPECT_EQ(S_OK, ev->Reset()); | |
39 | |
40 IEnumVARIANT* ev2 = NULL; | |
41 EXPECT_EQ(S_OK, ev->Clone(&ev2)); | |
42 | |
43 EXPECT_NE(static_cast<IEnumVARIANT*>(NULL), ev2); | |
44 EXPECT_NE(ev, ev2); | |
45 EXPECT_EQ(S_FALSE, ev2->Skip(1)); | |
46 EXPECT_EQ(S_OK, ev2->Reset()); | |
47 | |
48 ULONG ev2_finalrefcount = ev2->Release(); | |
49 EXPECT_EQ(0, ev2_finalrefcount); | |
50 | |
51 ULONG ev_finalrefcount = ev->Release(); | |
52 EXPECT_EQ(0, ev_finalrefcount); | |
53 } | |
54 | |
55 TEST(EnumVariantTest, SimpleEnumVariant) { | |
56 ScopedCOMInitializer com_initializer; | |
57 | |
58 EnumVariant* ev = new EnumVariant(3); | |
59 ev->AddRef(); | |
60 ev->ItemAt(0)->vt = VT_I4; | |
61 ev->ItemAt(0)->lVal = 10; | |
62 ev->ItemAt(1)->vt = VT_I4; | |
63 ev->ItemAt(1)->lVal = 20; | |
64 ev->ItemAt(2)->vt = VT_I4; | |
65 ev->ItemAt(2)->lVal = 30; | |
66 | |
67 // Get elements one at a time. | |
68 VARIANT out_element; | |
69 ULONG out_received = 0; | |
70 EXPECT_EQ(S_OK, ev->Next(1, &out_element, &out_received)); | |
71 EXPECT_EQ(1, out_received); | |
72 EXPECT_EQ(VT_I4, out_element.vt); | |
73 EXPECT_EQ(10, out_element.lVal); | |
74 EXPECT_EQ(S_OK, ev->Skip(1)); | |
75 EXPECT_EQ(S_OK, ev->Next(1, &out_element, &out_received)); | |
76 EXPECT_EQ(1, out_received); | |
77 EXPECT_EQ(VT_I4, out_element.vt); | |
78 EXPECT_EQ(30, out_element.lVal); | |
79 EXPECT_EQ(S_FALSE, ev->Next(1, &out_element, &out_received)); | |
80 | |
81 // Reset and get all elements at once. | |
82 VARIANT out_elements[3]; | |
83 EXPECT_EQ(S_OK, ev->Reset()); | |
84 EXPECT_EQ(S_OK, ev->Next(3, out_elements, &out_received)); | |
85 EXPECT_EQ(3, out_received); | |
86 EXPECT_EQ(VT_I4, out_elements[0].vt); | |
87 EXPECT_EQ(10, out_elements[0].lVal); | |
88 EXPECT_EQ(VT_I4, out_elements[1].vt); | |
89 EXPECT_EQ(20, out_elements[1].lVal); | |
90 EXPECT_EQ(VT_I4, out_elements[2].vt); | |
91 EXPECT_EQ(30, out_elements[2].lVal); | |
92 EXPECT_EQ(S_FALSE, ev->Next(1, &out_element, &out_received)); | |
93 | |
94 // Clone it. | |
95 IEnumVARIANT* ev2 = NULL; | |
96 EXPECT_EQ(S_OK, ev->Clone(&ev2)); | |
97 EXPECT_TRUE(ev2 != NULL); | |
98 EXPECT_EQ(S_FALSE, ev->Next(1, &out_element, &out_received)); | |
99 EXPECT_EQ(S_OK, ev2->Reset()); | |
100 EXPECT_EQ(S_OK, ev2->Next(3, out_elements, &out_received)); | |
101 EXPECT_EQ(3, out_received); | |
102 EXPECT_EQ(VT_I4, out_elements[0].vt); | |
103 EXPECT_EQ(10, out_elements[0].lVal); | |
104 EXPECT_EQ(VT_I4, out_elements[1].vt); | |
105 EXPECT_EQ(20, out_elements[1].lVal); | |
106 EXPECT_EQ(VT_I4, out_elements[2].vt); | |
107 EXPECT_EQ(30, out_elements[2].lVal); | |
108 EXPECT_EQ(S_FALSE, ev2->Next(1, &out_element, &out_received)); | |
109 | |
110 ULONG ev2_finalrefcount = ev2->Release(); | |
111 EXPECT_EQ(0, ev2_finalrefcount); | |
112 | |
113 ULONG ev_finalrefcount = ev->Release(); | |
114 EXPECT_EQ(0, ev_finalrefcount); | |
115 } | |
116 | |
117 } // namespace win | |
118 } // namespace base | |
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