Isolated FS for media devices.

base/system_monitor/system_monitor_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/system_monitor/system_monitor.h"
 
 #include "base/file_path.h"
 #include "base/message_loop.h"
 #include "base/test/mock_devices_changed_observer.h"
 #include "base/utf_string_conversions.h"
@@ skipping 92 matching lines @@
 
   // Send a duplicate resume notification.  This should be suppressed.
   system_monitor_->ProcessPowerMessage(SystemMonitor::RESUME_EVENT);
   message_loop_.RunAllPending();
   EXPECT_EQ(test[0].resumes(), 1);
 }
 
 TEST_F(SystemMonitorTest, DeviceChangeNotifications) {
   const int kObservers = 5;
   const string16 kDeviceName = ASCIIToUTF16("media device");
+  const FilePath kDevicePath1(FILE_PATH_LITERAL("/testfoo"));
   const std::string kDeviceId1 = "1";
   const std::string kDeviceId2 = "2";
 
   testing::Sequence mock_sequencer[kObservers];
   MockDevicesChangedObserver observers[kObservers];
   for (int index = 0; index < kObservers; ++index) {
     system_monitor_->AddDevicesChangedObserver(&observers[index]);
 
     EXPECT_CALL(observers[index], OnDevicesChanged())
         .Times(3)
         .InSequence(mock_sequencer[index]);
     EXPECT_CALL(observers[index],
                 OnMediaDeviceAttached(kDeviceId1,
                                       kDeviceName,
                                       base::SystemMonitor::TYPE_PATH,
-                                      testing::_))
+                                      kDevicePath1.value()))
         .InSequence(mock_sequencer[index]);
-    EXPECT_CALL(observers[index], OnMediaDeviceDetached(kDeviceId1))
-        .InSequence(mock_sequencer[index]);
-    EXPECT_CALL(observers[index], OnMediaDeviceDetached(kDeviceId2))
-        .InSequence(mock_sequencer[index]);
+    EXPECT_CALL(observers[index], OnMediaDeviceDetached(
+        kDeviceId1, kDevicePath1.value())).InSequence(mock_sequencer[index]);
+    EXPECT_CALL(observers[index], OnMediaDeviceDetached(
+        kDeviceId2, testing::_)).Times(0);
   }
 
   system_monitor_->ProcessDevicesChanged();
   message_loop_.RunAllPending();
 
   system_monitor_->ProcessDevicesChanged();
   system_monitor_->ProcessDevicesChanged();
   message_loop_.RunAllPending();
 
   system_monitor_->ProcessMediaDeviceAttached(
       kDeviceId1,
       kDeviceName,
       base::SystemMonitor::TYPE_PATH,
-      FILE_PATH_LITERAL("path"));
+      kDevicePath1.value());
   message_loop_.RunAllPending();
 
   system_monitor_->ProcessMediaDeviceDetached(kDeviceId1);
   system_monitor_->ProcessMediaDeviceDetached(kDeviceId2);
   message_loop_.RunAllPending();
 }
 
 TEST_F(SystemMonitorTest, GetAttachedMediaDevicesEmpty) {
   std::vector<SystemMonitor::MediaDeviceInfo> devices =
       system_monitor_->GetAttachedMediaDevices();
@@ skipping 47 matching lines @@
 
   system_monitor_->ProcessMediaDeviceDetached(kDeviceId2);
   message_loop_.RunAllPending();
   devices = system_monitor_->GetAttachedMediaDevices();
   EXPECT_EQ(0U, devices.size());
 }
 
 }  // namespace
 
 }  // namespace base