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Side by Side Diff: base/scoped_bstr_win_unittest.cc

Issue 3781009: Move the windows-specific scoped_* stuff from base to base/win and in the bas... (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: '' Created 10 years, 2 months ago
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1 // Copyright (c) 2010 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/scoped_bstr_win.h"
6 #include "testing/gtest/include/gtest/gtest.h"
7
8 namespace {
9
10 static const wchar_t kTestString1[] = L"123";
11 static const wchar_t kTestString2[] = L"456789";
12 size_t test1_len = arraysize(kTestString1) - 1;
13 size_t test2_len = arraysize(kTestString2) - 1;
14
15 void DumbBstrTests() {
16 ScopedBstr b;
17 EXPECT_TRUE(b == NULL);
18 EXPECT_EQ(0, b.Length());
19 EXPECT_EQ(0, b.ByteLength());
20 b.Reset(NULL);
21 EXPECT_TRUE(b == NULL);
22 EXPECT_TRUE(b.Release() == NULL);
23 ScopedBstr b2;
24 b.Swap(b2);
25 EXPECT_TRUE(b2 == NULL);
26 }
27
28 void GiveMeABstr(BSTR* ret) {
29 *ret = SysAllocString(kTestString1);
30 }
31
32 void BasicBstrTests() {
33 ScopedBstr b1(kTestString1);
34 EXPECT_EQ(test1_len, b1.Length());
35 EXPECT_EQ(test1_len * sizeof(kTestString1[0]), b1.ByteLength());
36
37 ScopedBstr b2;
38 b1.Swap(b2);
39 EXPECT_EQ(test1_len, b2.Length());
40 EXPECT_EQ(0, b1.Length());
41 EXPECT_EQ(0, lstrcmp(b2, kTestString1));
42 BSTR tmp = b2.Release();
43 EXPECT_TRUE(tmp != NULL);
44 EXPECT_EQ(0, lstrcmp(tmp, kTestString1));
45 EXPECT_TRUE(b2 == NULL);
46 SysFreeString(tmp);
47
48 GiveMeABstr(b2.Receive());
49 EXPECT_TRUE(b2 != NULL);
50 b2.Reset();
51 EXPECT_TRUE(b2.AllocateBytes(100) != NULL);
52 EXPECT_EQ(100, b2.ByteLength());
53 EXPECT_EQ(100 / sizeof(kTestString1[0]), b2.Length());
54 lstrcpy(static_cast<BSTR>(b2), kTestString1);
55 EXPECT_EQ(test1_len, lstrlen(b2));
56 EXPECT_EQ(100 / sizeof(kTestString1[0]), b2.Length());
57 b2.SetByteLen(lstrlen(b2) * sizeof(kTestString2[0]));
58 EXPECT_EQ(b2.Length(), lstrlen(b2));
59
60 EXPECT_TRUE(b1.Allocate(kTestString2) != NULL);
61 EXPECT_EQ(test2_len, b1.Length());
62 b1.SetByteLen((test2_len - 1) * sizeof(kTestString2[0]));
63 EXPECT_EQ(test2_len - 1, b1.Length());
64 }
65
66 } // namespace
67
68 TEST(ScopedBstrTest, ScopedBstr) {
69 DumbBstrTests();
70 BasicBstrTests();
71 }
72
73 #define kSourceStr L"this is a string"
74 #define kSourceStrEmpty L""
75
76 TEST(StackBstrTest, StackBstr) {
77 ScopedBstr system_bstr(kSourceStr);
78 StackBstrVar(kSourceStr, stack_bstr);
79 EXPECT_EQ(VARCMP_EQ,
80 VarBstrCmp(system_bstr, stack_bstr, LOCALE_USER_DEFAULT, 0));
81
82 StackBstrVar(kSourceStrEmpty, empty);
83 UINT l1 = SysStringLen(stack_bstr);
84 UINT l2 = SysStringLen(StackBstr(kSourceStr));
85 UINT l3 = SysStringLen(system_bstr);
86 EXPECT_EQ(l1, l2);
87 EXPECT_EQ(l2, l3);
88 EXPECT_EQ(0, SysStringLen(empty));
89
90 const wchar_t one_more_test[] = L"this is my const string";
91 EXPECT_EQ(SysStringLen(StackBstr(one_more_test)),
92 lstrlen(one_more_test));
93 }
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