[fsp] Add requestUnmount() method together with the request manager.

chrome/browser/chromeos/file_system_provider/service_unittest.cc

 // Copyright 2014 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 <string>
+#include <vector>
 
+#include "base/files/file.h"
 #include "base/memory/scoped_ptr.h"
-#include "base/memory/scoped_vector.h"
 #include "chrome/browser/chromeos/file_system_provider/observer.h"
 #include "chrome/browser/chromeos/file_system_provider/provided_file_system.h"
 #include "chrome/browser/chromeos/file_system_provider/service.h"
 #include "chrome/browser/chromeos/login/fake_user_manager.h"
 #include "chrome/test/base/testing_profile.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "webkit/browser/fileapi/external_mount_points.h"
 
 namespace chromeos {
 namespace file_system_provider {
 namespace {
 
 const char kExtensionId[] = "mbflcebpggnecokmikipoihdbecnjfoj";
 const char kFileSystemName[] = "Camera Pictures";
 
 // Utility observer, logging events from file_system_provider::Service.
 class LoggingObserver : public Observer {
  public:
+  class Event {
+   public:
+    Event(const ProvidedFileSystem& file_system, base::File::Error error)
+        : file_system_(file_system), error_(error) {}
+    ~Event() {}
+
+    const ProvidedFileSystem& file_system() { return file_system_; }
+    base::File::Error error() { return error_; }
+
+   private:
+    ProvidedFileSystem file_system_;
+    base::File::Error error_;
+  };
+
   LoggingObserver() {}
   virtual ~LoggingObserver() {}
 
   // file_system_provider::Observer overrides.
-  virtual void OnProvidedFileSystemRegistered(
-      const ProvidedFileSystem& file_system) OVERRIDE {
-    registered.push_back(new const ProvidedFileSystem(file_system));
+  virtual void OnProvidedFileSystemMount(const ProvidedFileSystem& file_system,
+                                         base::File::Error error) OVERRIDE {
+    mounts.push_back(Event(file_system, error));
   }
 
-  virtual void OnProvidedFileSystemUnregistered(
-      const ProvidedFileSystem& file_system) OVERRIDE {
-    unregistered.push_back(new const ProvidedFileSystem(file_system));
+  virtual void OnProvidedFileSystemUnmount(
+      const ProvidedFileSystem& file_system,
+      base::File::Error error) OVERRIDE {
+    unmounts.push_back(Event(file_system, error));
   }
 
-  ScopedVector<const ProvidedFileSystem> registered;
-  ScopedVector<const ProvidedFileSystem> unregistered;
+  std::vector<Event> mounts;
+  std::vector<Event> unmounts;
 };
 
 }  // namespace
 
 class FileSystemProviderServiceTest : public testing::Test {
  protected:
   FileSystemProviderServiceTest() {}
   virtual ~FileSystemProviderServiceTest() {}
 
   virtual void SetUp() OVERRIDE {
     user_manager_ = new FakeUserManager();
     user_manager_enabler_.reset(new ScopedUserManagerEnabler(user_manager_));
     profile_.reset(new TestingProfile);
     user_manager_->AddUser(profile_->GetProfileName());
     file_system_provider_service_.reset(new Service(profile_.get()));
   }
 
   virtual void TearDown() {
     fileapi::ExternalMountPoints::GetSystemInstance()->RevokeAllFileSystems();
   }
 
   content::TestBrowserThreadBundle thread_bundle_;
   scoped_ptr<TestingProfile> profile_;
   scoped_ptr<ScopedUserManagerEnabler> user_manager_enabler_;
   FakeUserManager* user_manager_;
   scoped_ptr<Service> file_system_provider_service_;
 };
 
-TEST_F(FileSystemProviderServiceTest, RegisterFileSystem) {
+TEST_F(FileSystemProviderServiceTest, MountFileSystem) {
   LoggingObserver observer;
   file_system_provider_service_->AddObserver(&observer);
 
-  int file_system_id = file_system_provider_service_->RegisterFileSystem(
+  int file_system_id = file_system_provider_service_->MountFileSystem(
       kExtensionId, kFileSystemName);
 
   EXPECT_LT(0, file_system_id);
-  ASSERT_EQ(1u, observer.registered.size());
-  EXPECT_EQ(kExtensionId, observer.registered[0]->extension_id());
-  EXPECT_EQ(1, observer.registered[0]->file_system_id());
+  ASSERT_EQ(1u, observer.mounts.size());
+  EXPECT_EQ(kExtensionId, observer.mounts[0].file_system().extension_id());
+  EXPECT_EQ(1, observer.mounts[0].file_system().file_system_id());
   EXPECT_EQ("/provided/mbflcebpggnecokmikipoihdbecnjfoj-1-testing_profile-hash",
-            observer.registered[0]->mount_path().AsUTF8Unsafe());
-  EXPECT_EQ(kFileSystemName, observer.registered[0]->file_system_name());
-  ASSERT_EQ(0u, observer.unregistered.size());
+            observer.mounts[0].file_system().mount_path().AsUTF8Unsafe());
+  EXPECT_EQ(kFileSystemName,
+            observer.mounts[0].file_system().file_system_name());
+  EXPECT_EQ(base::File::FILE_OK, observer.mounts[0].error());
+  ASSERT_EQ(0u, observer.unmounts.size());
 
   std::vector<ProvidedFileSystem> provided_file_systems =
-      file_system_provider_service_->GetRegisteredFileSystems();
+      file_system_provider_service_->GetMountedFileSystems();
   ASSERT_EQ(1u, provided_file_systems.size());
 
   file_system_provider_service_->RemoveObserver(&observer);
 }
 
-TEST_F(FileSystemProviderServiceTest, RegisterFileSystem_UniqueIds) {
+TEST_F(FileSystemProviderServiceTest, MountFileSystem_UniqueIds) {
   LoggingObserver observer;
   file_system_provider_service_->AddObserver(&observer);
 
-  int file_system_first_id = file_system_provider_service_->RegisterFileSystem(
+  int file_system_first_id = file_system_provider_service_->MountFileSystem(
       kExtensionId, kFileSystemName);
-  ASSERT_LT(0, file_system_first_id);
+  EXPECT_LT(0, file_system_first_id);
 
-  int file_system_second_id = file_system_provider_service_->RegisterFileSystem(
+  int file_system_second_id = file_system_provider_service_->MountFileSystem(
       kExtensionId, kFileSystemName);
-  ASSERT_LT(0, file_system_second_id);
+  EXPECT_LT(0, file_system_second_id);
 
-  ASSERT_NE(file_system_first_id, file_system_second_id);
-  ASSERT_EQ(2u, observer.registered.size());
+  EXPECT_NE(file_system_first_id, file_system_second_id);
+  ASSERT_EQ(2u, observer.mounts.size());
+  EXPECT_EQ(base::File::FILE_OK, observer.mounts[0].error());
+  EXPECT_EQ(base::File::FILE_OK, observer.mounts[1].error());
 
   std::vector<ProvidedFileSystem> provided_file_systems =
-      file_system_provider_service_->GetRegisteredFileSystems();
+      file_system_provider_service_->GetMountedFileSystems();
   ASSERT_EQ(2u, provided_file_systems.size());
 
   file_system_provider_service_->RemoveObserver(&observer);
 }
 
-TEST_F(FileSystemProviderServiceTest, RegisterFileSystem_StressTest) {
+TEST_F(FileSystemProviderServiceTest, MountFileSystem_StressTest) {
   LoggingObserver observer;
   file_system_provider_service_->AddObserver(&observer);
 
   const size_t kMaxFileSystems = 16;
   for (size_t i = 0; i < kMaxFileSystems; ++i) {
-    int file_system_id = file_system_provider_service_->RegisterFileSystem(
+    int file_system_id = file_system_provider_service_->MountFileSystem(
         kExtensionId, kFileSystemName);
-    ASSERT_LT(0, file_system_id);
+    EXPECT_LT(0, file_system_id);
   }
-  ASSERT_EQ(kMaxFileSystems, observer.registered.size());
+  ASSERT_EQ(kMaxFileSystems, observer.mounts.size());
 
   // The next file system is out of limit, and registering it should fail.
-  int file_system_id = file_system_provider_service_->RegisterFileSystem(
+  int file_system_id = file_system_provider_service_->MountFileSystem(
       kExtensionId, kFileSystemName);
-  ASSERT_EQ(0, file_system_id);
-  ASSERT_EQ(kMaxFileSystems, observer.registered.size());
+  EXPECT_EQ(0, file_system_id);
+
+  ASSERT_EQ(kMaxFileSystems + 1, observer.mounts.size());
+  EXPECT_EQ(base::File::FILE_ERROR_TOO_MANY_OPENED,
+            observer.mounts[kMaxFileSystems].error());
+  ASSERT_EQ(kMaxFileSystems,
+            file_system_provider_service_->GetMountedFileSystems().size());
 
   std::vector<ProvidedFileSystem> provided_file_systems =
-      file_system_provider_service_->GetRegisteredFileSystems();
+      file_system_provider_service_->GetMountedFileSystems();
   ASSERT_EQ(kMaxFileSystems, provided_file_systems.size());
 
   file_system_provider_service_->RemoveObserver(&observer);
 }
 
-TEST_F(FileSystemProviderServiceTest, UnregisterFileSystem) {
+TEST_F(FileSystemProviderServiceTest, UnmountFileSystem) {
   LoggingObserver observer;
   file_system_provider_service_->AddObserver(&observer);
 
-  int file_system_id = file_system_provider_service_->RegisterFileSystem(
+  int file_system_id = file_system_provider_service_->MountFileSystem(
       kExtensionId, kFileSystemName);
-  ASSERT_LT(0, file_system_id);
-  ASSERT_EQ(1u, observer.registered.size());
+  EXPECT_LT(0, file_system_id);
+  ASSERT_EQ(1u, observer.mounts.size());
 
-  const bool result = file_system_provider_service_->UnregisterFileSystem(
+  const bool result = file_system_provider_service_->UnmountFileSystem(
       kExtensionId, file_system_id);
-  ASSERT_TRUE(result);
-  ASSERT_EQ(1u, observer.unregistered.size());
+  EXPECT_TRUE(result);
+  ASSERT_EQ(1u, observer.unmounts.size());
+  EXPECT_EQ(base::File::FILE_OK, observer.unmounts[0].error());
 
-  EXPECT_EQ(kExtensionId, observer.unregistered[0]->extension_id());
-  EXPECT_EQ(1, observer.unregistered[0]->file_system_id());
+  EXPECT_EQ(kExtensionId, observer.unmounts[0].file_system().extension_id());
+  EXPECT_EQ(1, observer.unmounts[0].file_system().file_system_id());
   EXPECT_EQ("/provided/mbflcebpggnecokmikipoihdbecnjfoj-1-testing_profile-hash",
-            observer.unregistered[0]->mount_path().AsUTF8Unsafe());
-  EXPECT_EQ(kFileSystemName, observer.unregistered[0]->file_system_name());
+            observer.unmounts[0].file_system().mount_path().AsUTF8Unsafe());
+  EXPECT_EQ(kFileSystemName,
+            observer.unmounts[0].file_system().file_system_name());
 
   std::vector<ProvidedFileSystem> provided_file_systems =
-      file_system_provider_service_->GetRegisteredFileSystems();
+      file_system_provider_service_->GetMountedFileSystems();
   ASSERT_EQ(0u, provided_file_systems.size());
 
   file_system_provider_service_->RemoveObserver(&observer);
 }
 
-TEST_F(FileSystemProviderServiceTest, UnregisterFileSystem_WrongExtensionId) {
+TEST_F(FileSystemProviderServiceTest, UnmountFileSystem_WrongExtensionId) {
   LoggingObserver observer;
   file_system_provider_service_->AddObserver(&observer);
 
   const std::string kWrongExtensionId = "helloworldhelloworldhelloworldhe";
 
-  int file_system_id = file_system_provider_service_->RegisterFileSystem(
+  int file_system_id = file_system_provider_service_->MountFileSystem(
       kExtensionId, kFileSystemName);
-  ASSERT_LT(0, file_system_id);
-  ASSERT_EQ(1u, observer.registered.size());
+  EXPECT_LT(0, file_system_id);
+  ASSERT_EQ(1u, observer.mounts.size());
+  ASSERT_EQ(1u, file_system_provider_service_->GetMountedFileSystems().size());
 
-  const bool result = file_system_provider_service_->UnregisterFileSystem(
+  const bool result = file_system_provider_service_->UnmountFileSystem(
       kWrongExtensionId, file_system_id);
-  ASSERT_FALSE(result);
-  ASSERT_EQ(0u, observer.unregistered.size());
+  EXPECT_FALSE(result);
+  ASSERT_EQ(1u, observer.unmounts.size());
+  EXPECT_EQ(base::File::FILE_ERROR_NOT_FOUND, observer.unmounts[0].error());
+  ASSERT_EQ(1u, file_system_provider_service_->GetMountedFileSystems().size());
 
   std::vector<ProvidedFileSystem> provided_file_systems =
-      file_system_provider_service_->GetRegisteredFileSystems();
+      file_system_provider_service_->GetMountedFileSystems();
   ASSERT_EQ(1u, provided_file_systems.size());
 
   file_system_provider_service_->RemoveObserver(&observer);
 }
 
 }  // namespace file_system_provider
 }  // namespace chromeos