src/components/storage_monitor/test_volume_mount_watcher_win.cc

   1 // Copyright 2014 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 // TestVolumeMountWatcherWin implementation.
   6
   7 #include "components/storage_monitor/test_volume_mount_watcher_win.h"
   8
   9 #include "base/bind.h"
  10 #include "base/files/file_path.h"
  11 #include "base/files/scoped_temp_dir.h"
  12 #include "base/strings/utf_string_conversions.h"
  13 #include "components/storage_monitor/storage_info.h"
  14
  15 namespace storage_monitor {
  16
  17 namespace {
  18
  19 base::FilePath GetTempRoot() {
  20   base::ScopedTempDir temp_dir;
  21   temp_dir.CreateUniqueTempDir();
  22   base::FilePath temp_root = temp_dir.path();
  23   while (temp_root.DirName() != temp_root)
  24     temp_root = temp_root.DirName();
  25   return temp_root;
  26 }
  27
  28 std::vector<base::FilePath> FakeGetSingleAttachedDevice() {
  29   std::vector<base::FilePath> result;
  30   result.push_back(VolumeMountWatcherWin::DriveNumberToFilePath(2));  // C
  31
  32   // Make sure we are adding the drive on which ScopedTempDir will make
  33   // test directories.
  34   base::FilePath temp_root = GetTempRoot();
  35   if (temp_root != VolumeMountWatcherWin::DriveNumberToFilePath(2))
  36     result.push_back(temp_root);
  37
  38   return result;
  39 }
  40
  41 std::vector<base::FilePath> FakeGetAttachedDevices() {
  42   std::vector<base::FilePath> result;
  43   result.push_back(VolumeMountWatcherWin::DriveNumberToFilePath(0));  // A
  44   result.push_back(VolumeMountWatcherWin::DriveNumberToFilePath(1));  // B
  45   result.push_back(VolumeMountWatcherWin::DriveNumberToFilePath(2));  // C
  46   result.push_back(VolumeMountWatcherWin::DriveNumberToFilePath(3));  // D
  47   result.push_back(VolumeMountWatcherWin::DriveNumberToFilePath(5));  // F
  48   result.push_back(VolumeMountWatcherWin::DriveNumberToFilePath(7));  // H
  49   result.push_back(VolumeMountWatcherWin::DriveNumberToFilePath(13));  // N
  50   result.push_back(VolumeMountWatcherWin::DriveNumberToFilePath(25));  // Z
  51   return result;
  52 }
  53
  54 // Gets the details of the mass storage device specified by the |device_path|.
  55 // |device_path| inputs of 'A:\' - 'Z:\' are valid. 'N:\' is not removable.
  56 // 'C:\' is not removable (so that auto-added paths are correctly handled).
  57 bool GetMassStorageDeviceDetails(const base::FilePath& device_path,
  58                                  StorageInfo* info) {
  59   DCHECK(info);
  60
  61   // Truncate to root path.
  62   base::FilePath path(device_path);
  63   if (device_path.value().length() > 3)
  64     path = base::FilePath(device_path.value().substr(0, 3));
  65   if (path.value()[0] < L'A' || path.value()[0] > L'Z')
  66     return false;
  67
  68   StorageInfo::Type type = StorageInfo::FIXED_MASS_STORAGE;
  69   if (path.value() != base::ASCIIToUTF16("N:\\") &&
  70       path.value() != base::ASCIIToUTF16("C:\\") &&
  71       path.value() != GetTempRoot().value()) {
  72     type = StorageInfo::REMOVABLE_MASS_STORAGE_WITH_DCIM;
  73   }
  74   std::string unique_id =
  75       "\\\\?\\Volume{00000000-0000-0000-0000-000000000000}\\";
  76   unique_id[11] = device_path.value()[0];
  77   std::string device_id = StorageInfo::MakeDeviceId(type, unique_id);
  78   base::string16 storage_label = path.Append(L" Drive").LossyDisplayName();
  79   *info = StorageInfo(device_id, path.value(), storage_label, base::string16(),
  80                       base::string16(), 1000000);
  81
  82   return true;
  83 }
  84
  85 }  // namespace
  86
  87 // TestVolumeMountWatcherWin ---------------------------------------------------
  88
  89 TestVolumeMountWatcherWin::TestVolumeMountWatcherWin()
  90     : attached_devices_fake_(false) {}
  91
  92 TestVolumeMountWatcherWin::~TestVolumeMountWatcherWin() {
  93 }
  94
  95 void TestVolumeMountWatcherWin::AddDeviceForTesting(
  96     const base::FilePath& device_path,
  97     const std::string& device_id,
  98     const base::string16& storage_label,
  99     uint64 total_size_in_bytes) {
 100   StorageInfo info(device_id, device_path.value(), storage_label,
 101                    base::string16(), base::string16(), total_size_in_bytes);
 102   HandleDeviceAttachEventOnUIThread(device_path, info);
 103 }
 104
 105 void TestVolumeMountWatcherWin::SetAttachedDevicesFake() {
 106   attached_devices_fake_ = true;
 107 }
 108
 109 void TestVolumeMountWatcherWin::FlushWorkerPoolForTesting() {
 110   device_info_worker_pool_->FlushForTesting();
 111 }
 112
 113 void TestVolumeMountWatcherWin::DeviceCheckComplete(
 114     const base::FilePath& device_path) {
 115   devices_checked_.push_back(device_path);
 116   if (device_check_complete_event_.get())
 117     device_check_complete_event_->Wait();
 118   VolumeMountWatcherWin::DeviceCheckComplete(device_path);
 119 }
 120
 121 void TestVolumeMountWatcherWin::BlockDeviceCheckForTesting() {
 122   device_check_complete_event_.reset(new base::WaitableEvent(false, false));
 123   devices_checked_.clear();
 124 }
 125
 126 void TestVolumeMountWatcherWin::ReleaseDeviceCheck() {
 127   device_check_complete_event_->Signal();
 128 }
 129
 130 // static
 131 bool TestVolumeMountWatcherWin::GetDeviceRemovable(
 132     const base::FilePath& device_path,
 133     bool* removable) {
 134   StorageInfo info;
 135   bool success = GetMassStorageDeviceDetails(device_path, &info);
 136   *removable = StorageInfo::IsRemovableDevice(info.device_id());
 137   return success;
 138 }
 139
 140 VolumeMountWatcherWin::GetDeviceDetailsCallbackType
 141 TestVolumeMountWatcherWin::GetDeviceDetailsCallback() const {
 142   return base::Bind(&GetMassStorageDeviceDetails);
 143 }
 144
 145 VolumeMountWatcherWin::GetAttachedDevicesCallbackType
 146   TestVolumeMountWatcherWin::GetAttachedDevicesCallback() const {
 147   if (attached_devices_fake_)
 148     return base::Bind(&FakeGetAttachedDevices);
 149   return base::Bind(&FakeGetSingleAttachedDevice);
 150 }
 151
 152 void TestVolumeMountWatcherWin::ShutdownWorkerPool() {
 153   device_info_worker_pool_->Shutdown();
 154 }
 155
 156 }  // namespace storage_monitor