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 <string> 6 7 #include "base/file_util.h" 8 #include "base/files/file.h" 9 #include "base/files/file_path.h" 10 #include "base/files/scoped_temp_dir.h" 11 #include "base/win/scoped_handle.h" 12 #include "chrome/installer/util/logging_installer.h" 13 #include "testing/gtest/include/gtest/gtest.h" 14 15 TEST(LoggingInstallerTest, TestTruncate) { 16 const std::string test_data(installer::kMaxInstallerLogFileSize + 1, 'a'); 17 18 base::ScopedTempDir temp_dir; 19 ASSERT_TRUE(temp_dir.CreateUniqueTempDir()); 20 21 base::FilePath temp_file = temp_dir.path().Append(L"temp"); 22 EXPECT_EQ(test_data.size(), 23 base::WriteFile(temp_file, &test_data[0], test_data.size())); 24 ASSERT_TRUE(base::PathExists(temp_file)); 25 26 int64 file_size = 0; 27 EXPECT_TRUE(base::GetFileSize(temp_file, &file_size)); 28 EXPECT_EQ(test_data.size(), file_size); 29 30 EXPECT_EQ(installer::LOGFILE_TRUNCATED, 31 installer::TruncateLogFileIfNeeded(temp_file)); 32 33 EXPECT_TRUE(base::GetFileSize(temp_file, &file_size)); 34 EXPECT_EQ(installer::kTruncatedInstallerLogFileSize , file_size); 35 36 // Check that the temporary file was deleted. 37 EXPECT_FALSE(base::PathExists(temp_file.Append(L".tmp"))); 38 } 39 40 TEST(LoggingInstallerTest, TestTruncationNotNeeded) { 41 const std::string test_data(installer::kMaxInstallerLogFileSize, 'a'); 42 43 base::ScopedTempDir temp_dir; 44 ASSERT_TRUE(temp_dir.CreateUniqueTempDir()); 45 46 base::FilePath temp_file = temp_dir.path().Append(L"temp"); 47 EXPECT_EQ(test_data.size(), 48 base::WriteFile(temp_file, &test_data[0], test_data.size())); 49 ASSERT_TRUE(base::PathExists(temp_file)); 50 51 int64 file_size = 0; 52 EXPECT_TRUE(base::GetFileSize(temp_file, &file_size)); 53 EXPECT_EQ(test_data.size(), file_size); 54 55 EXPECT_EQ(installer::LOGFILE_UNTOUCHED, 56 installer::TruncateLogFileIfNeeded(temp_file)); 57 EXPECT_TRUE(base::PathExists(temp_file)); 58 EXPECT_TRUE(base::GetFileSize(temp_file, &file_size)); 59 EXPECT_EQ(test_data.size(), file_size); 60 } 61 62 TEST(LoggingInstallerTest, TestInUseNeedsTruncation) { 63 const std::string test_data(installer::kMaxInstallerLogFileSize + 1, 'a'); 64 65 base::ScopedTempDir temp_dir; 66 ASSERT_TRUE(temp_dir.CreateUniqueTempDir()); 67 68 base::FilePath temp_file = temp_dir.path().Append(L"temp"); 69 EXPECT_EQ(test_data.size(), 70 base::WriteFile(temp_file, &test_data[0], test_data.size())); 71 ASSERT_TRUE(base::PathExists(temp_file)); 72 int64 file_size = 0; 73 EXPECT_TRUE(base::GetFileSize(temp_file, &file_size)); 74 EXPECT_EQ(test_data.size(), file_size); 75 76 // Prevent the log file from being moved or deleted. 77 uint32 file_flags = base::File::FLAG_OPEN | 78 base::File::FLAG_READ | 79 base::File::FLAG_EXCLUSIVE_READ; 80 base::File temp_platform_file(temp_file, file_flags); 81 ASSERT_TRUE(temp_platform_file.IsValid()); 82 83 EXPECT_EQ(installer::LOGFILE_UNTOUCHED, 84 installer::TruncateLogFileIfNeeded(temp_file)); 85 EXPECT_TRUE(base::PathExists(temp_file)); 86 EXPECT_TRUE(base::GetFileSize(temp_file, &file_size)); 87 EXPECT_EQ(test_data.size(), file_size); 88 } 89 90 TEST(LoggingInstallerTest, TestMoveFailsNeedsTruncation) { 91 const std::string test_data(installer::kMaxInstallerLogFileSize + 1, 'a'); 92 93 base::ScopedTempDir temp_dir; 94 ASSERT_TRUE(temp_dir.CreateUniqueTempDir()); 95 96 base::FilePath temp_file = temp_dir.path().Append(L"temp"); 97 EXPECT_EQ(test_data.size(), 98 base::WriteFile(temp_file, &test_data[0], test_data.size())); 99 ASSERT_TRUE(base::PathExists(temp_file)); 100 int64 file_size = 0; 101 EXPECT_TRUE(base::GetFileSize(temp_file, &file_size)); 102 EXPECT_EQ(test_data.size(), file_size); 103 104 // Create an inconvenient, non-deletable file in the location that 105 // TruncateLogFileIfNeeded would like to move the log file to. 106 uint32 file_flags = base::File::FLAG_CREATE | 107 base::File::FLAG_READ | 108 base::File::FLAG_EXCLUSIVE_READ; 109 base::FilePath temp_file_move_dest( 110 temp_file.value() + FILE_PATH_LITERAL(".tmp")); 111 base::File temp_move_destination_file(temp_file_move_dest, file_flags); 112 ASSERT_TRUE(temp_move_destination_file.IsValid()); 113 114 EXPECT_EQ(installer::LOGFILE_DELETED, 115 installer::TruncateLogFileIfNeeded(temp_file)); 116 EXPECT_FALSE(base::PathExists(temp_file)); 117 } 118
