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 <windows.h> 6 7 #include <string> 8 9 #include "base/basictypes.h" 10 #include "chrome/installer/mini_installer/mini_string.h" 11 #include "testing/gtest/include/gtest/gtest.h" 12 13 using mini_installer::StackString; 14 15 namespace { 16 class MiniInstallerStringTest : public testing::Test { 17 protected: 18 virtual void SetUp() { 19 } 20 virtual void TearDown() { 21 } 22 }; 23 } 24 25 // Tests the strcat/strcpy/length support of the StackString class. 26 TEST_F(MiniInstallerStringTest, StackStringOverflow) { 27 static const wchar_t kTestString[] = L"1234567890"; 28 29 StackString<MAX_PATH> str; 30 EXPECT_EQ(MAX_PATH, str.capacity()); 31 32 std::wstring compare_str; 33 34 EXPECT_EQ(str.length(), compare_str.length()); 35 EXPECT_EQ(0, compare_str.compare(str.get())); 36 37 size_t max_chars = str.capacity() - 1; 38 39 while ((str.length() + (arraysize(kTestString) - 1)) <= max_chars) { 40 EXPECT_TRUE(str.append(kTestString)); 41 compare_str.append(kTestString); 42 EXPECT_EQ(str.length(), compare_str.length()); 43 EXPECT_EQ(0, compare_str.compare(str.get())); 44 } 45 46 EXPECT_GT(static_cast<size_t>(MAX_PATH), str.length()); 47 48 // Now we've exhausted the space we allocated for the string, 49 // so append should fail. 50 EXPECT_FALSE(str.append(kTestString)); 51 52 // ...and remain unchanged. 53 EXPECT_EQ(0, compare_str.compare(str.get())); 54 EXPECT_EQ(str.length(), compare_str.length()); 55 56 // Last test for fun. 57 str.clear(); 58 compare_str.clear(); 59 EXPECT_EQ(0, compare_str.compare(str.get())); 60 EXPECT_EQ(str.length(), compare_str.length()); 61 } 62 63 // Tests the case insensitive find support of the StackString class. 64 TEST_F(MiniInstallerStringTest, StackStringFind) { 65 static const wchar_t kTestStringSource[] = L"1234ABcD567890"; 66 static const wchar_t kTestStringFind[] = L"abcd"; 67 static const wchar_t kTestStringNotFound[] = L"80"; 68 69 StackString<MAX_PATH> str; 70 EXPECT_TRUE(str.assign(kTestStringSource)); 71 EXPECT_EQ(str.get(), str.findi(kTestStringSource)); 72 EXPECT_EQ(static_cast<const wchar_t*>(NULL), str.findi(kTestStringNotFound)); 73 const wchar_t* found = str.findi(kTestStringFind); 74 EXPECT_NE(static_cast<const wchar_t*>(NULL), found); 75 std::wstring check(found, arraysize(kTestStringFind) - 1); 76 EXPECT_EQ(0, lstrcmpi(check.c_str(), kTestStringFind)); 77 } 78
