1 // Copyright 2013 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 "chrome/browser/chromeos/file_manager/file_watcher.h" 6 7 #include "base/files/file_util.h" 8 #include "base/files/scoped_temp_dir.h" 9 #include "base/message_loop/message_loop.h" 10 #include "base/run_loop.h" 11 #include "content/public/test/test_browser_thread_bundle.h" 12 #include "google_apis/drive/test_util.h" 13 #include "testing/gtest/include/gtest/gtest.h" 14 15 namespace file_manager { 16 namespace { 17 18 using google_apis::test_util::CreateQuitCallback; 19 using google_apis::test_util::CreateCopyResultCallback; 20 21 class FileManagerFileWatcherTest : public testing::Test { 22 public: 23 // Use IO_MAINLOOP so FilePathWatcher works in the fake FILE thread, which 24 // is actually shared with the main thread. 25 FileManagerFileWatcherTest() 26 : thread_bundle_(content::TestBrowserThreadBundle::IO_MAINLOOP) { 27 } 28 29 private: 30 content::TestBrowserThreadBundle thread_bundle_; 31 }; 32 33 TEST_F(FileManagerFileWatcherTest, AddAndRemoveOneExtensionId) { 34 const base::FilePath kVirtualPath = 35 base::FilePath::FromUTF8Unsafe("foo/bar.txt"); 36 const char kExtensionId[] = "extension-id"; 37 38 FileWatcher file_watcher(kVirtualPath); 39 file_watcher.AddExtension(kExtensionId); 40 std::vector<std::string> extension_ids = file_watcher.GetExtensionIds(); 41 42 ASSERT_EQ(1U, extension_ids.size()); 43 ASSERT_EQ(kExtensionId, extension_ids[0]); 44 45 file_watcher.RemoveExtension(kExtensionId); 46 extension_ids = file_watcher.GetExtensionIds(); 47 ASSERT_EQ(0U, extension_ids.size()); 48 } 49 50 TEST_F(FileManagerFileWatcherTest, AddAndRemoveMultipleExtensionIds) { 51 const base::FilePath kVirtualPath = 52 base::FilePath::FromUTF8Unsafe("foo/bar.txt"); 53 const char kExtensionFooId[] = "extension-foo-id"; 54 const char kExtensionBarId[] = "extension-bar-id"; 55 56 FileWatcher file_watcher(kVirtualPath); 57 file_watcher.AddExtension(kExtensionFooId); 58 file_watcher.AddExtension(kExtensionBarId); 59 std::vector<std::string> extension_ids = file_watcher.GetExtensionIds(); 60 61 // The list should be sorted. 62 ASSERT_EQ(2U, extension_ids.size()); 63 ASSERT_EQ(kExtensionBarId, extension_ids[0]); 64 ASSERT_EQ(kExtensionFooId, extension_ids[1]); 65 66 // Remove Foo. Bar should remain. 67 file_watcher.RemoveExtension(kExtensionFooId); 68 extension_ids = file_watcher.GetExtensionIds(); 69 ASSERT_EQ(1U, extension_ids.size()); 70 ASSERT_EQ(kExtensionBarId, extension_ids[0]); 71 72 // Remove Bar. Nothing should remain. 73 file_watcher.RemoveExtension(kExtensionBarId); 74 extension_ids = file_watcher.GetExtensionIds(); 75 ASSERT_EQ(0U, extension_ids.size()); 76 } 77 78 TEST_F(FileManagerFileWatcherTest, AddSameExtensionMultipleTimes) { 79 const base::FilePath kVirtualPath = 80 base::FilePath::FromUTF8Unsafe("foo/bar.txt"); 81 const char kExtensionId[] = "extension-id"; 82 83 FileWatcher file_watcher(kVirtualPath); 84 // Add three times. 85 file_watcher.AddExtension(kExtensionId); 86 file_watcher.AddExtension(kExtensionId); 87 file_watcher.AddExtension(kExtensionId); 88 89 std::vector<std::string> extension_ids = file_watcher.GetExtensionIds(); 90 ASSERT_EQ(1U, extension_ids.size()); 91 ASSERT_EQ(kExtensionId, extension_ids[0]); 92 93 // Remove 1st time. 94 file_watcher.RemoveExtension(kExtensionId); 95 extension_ids = file_watcher.GetExtensionIds(); 96 ASSERT_EQ(1U, extension_ids.size()); 97 98 // Remove 2nd time. 99 file_watcher.RemoveExtension(kExtensionId); 100 extension_ids = file_watcher.GetExtensionIds(); 101 ASSERT_EQ(1U, extension_ids.size()); 102 103 // Remove 3rd time. The extension ID should be gone now. 104 file_watcher.RemoveExtension(kExtensionId); 105 extension_ids = file_watcher.GetExtensionIds(); 106 ASSERT_EQ(0U, extension_ids.size()); 107 } 108 109 TEST_F(FileManagerFileWatcherTest, WatchLocalFile) { 110 const base::FilePath kVirtualPath = 111 base::FilePath::FromUTF8Unsafe("foo/bar.txt"); 112 const char kExtensionId[] = "extension-id"; 113 114 // Create a temporary directory. 115 base::ScopedTempDir temp_dir; 116 ASSERT_TRUE(temp_dir.CreateUniqueTempDir()); 117 118 // See the comment at the end of this function for why scoped_ptr is used. 119 scoped_ptr<FileWatcher> file_watcher( 120 new FileWatcher(kVirtualPath)); 121 file_watcher->AddExtension(kExtensionId); 122 123 // Start watching changes in the temporary directory. 124 base::FilePath changed_path; 125 bool watcher_created = false; 126 bool on_change_error = false; 127 base::RunLoop run_loop; 128 file_watcher->WatchLocalFile( 129 temp_dir.path(), 130 CreateQuitCallback( 131 &run_loop, 132 CreateCopyResultCallback(&changed_path, &on_change_error)), 133 CreateCopyResultCallback(&watcher_created)); 134 // Spin the message loop so the base::FilePathWatcher is created. 135 base::RunLoop().RunUntilIdle(); 136 ASSERT_TRUE(watcher_created); 137 138 // Create a temporary file in the temporary directory. The file watcher 139 // should detect the change in the directory. 140 base::FilePath temp_file_path; 141 ASSERT_TRUE(base::CreateTemporaryFileInDir(temp_dir.path(), &temp_file_path)); 142 // Wait until the directory change is notified. 143 run_loop.Run(); 144 ASSERT_FALSE(on_change_error); 145 ASSERT_EQ(temp_dir.path().value(), changed_path.value()); 146 147 // This is ugly, but FileWatcher should be deleted explicitly here, and 148 // spin the message loop so the base::FilePathWatcher is deleted. 149 // Otherwise, base::FilePathWatcher may detect a change when the temporary 150 // directory is deleted, which may result in crash. 151 file_watcher.reset(); 152 base::RunLoop().RunUntilIdle(); 153 } 154 155 } // namespace 156 } // namespace file_manager. 157