[fsp] Add FileSystemURLParser to the file system provider.

chrome/browser/chromeos/file_system_provider/mount_path_util_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 "base/files/file.h"
+#include "base/memory/scoped_ptr.h"
+#include "chrome/browser/chromeos/file_system_provider/fake_provided_file_system.h"
 #include "chrome/browser/chromeos/file_system_provider/mount_path_util.h"
+#include "chrome/browser/chromeos/file_system_provider/provided_file_system_interface.h"
+#include "chrome/browser/chromeos/file_system_provider/service.h"
+#include "chrome/browser/chromeos/file_system_provider/service_factory.h"
 #include "chrome/browser/chromeos/login/fake_user_manager.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/test/base/testing_browser_process.h"
 #include "chrome/test/base/testing_profile.h"
+#include "chrome/test/base/testing_profile_manager.h"
+#include "components/keyed_service/core/keyed_service.h"
+#include "content/public/browser/browser_context.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 util {
 
+namespace {
+
+const char kExtensionId[] = "mbflcebpggnecokmikipoihdbecnjfoj";
+const char kFileSystemName[] = "Camera Pictures";
+
+// Creates a FileSystemURL for tests.
+fileapi::FileSystemURL CreateFileSystemURL(Profile* profile,
+                                           const std::string& extension_id,
+                                           int file_system_id,
+                                           const base::FilePath& file_path) {
+  const std::string origin = std::string("chrome-extension://") + kExtensionId;
+  const base::FilePath mount_path =
+      util::GetMountPath(profile, extension_id, file_system_id);
+  const fileapi::ExternalMountPoints* const mount_points =
+      fileapi::ExternalMountPoints::GetSystemInstance();
+  DCHECK(mount_points);
+  return mount_points->CreateCrackedFileSystemURL(
+      GURL(origin),
+      fileapi::kFileSystemTypeExternal,
+      base::FilePath(mount_path.BaseName().Append(file_path)));
+}
+
+// Creates a Service instance. Used to be able to destroy the service in
+// TearDown().
+KeyedService* CreateService(content::BrowserContext* context) {
+  return new Service(Profile::FromBrowserContext(context));
+}
+
+}  // namespace
+
 class FileSystemProviderMountPathUtilTest : public testing::Test {
  protected:
   FileSystemProviderMountPathUtilTest() {}
   virtual ~FileSystemProviderMountPathUtilTest() {}
 
   virtual void SetUp() OVERRIDE {
+    profile_manager_.reset(
+        new TestingProfileManager(TestingBrowserProcess::GetGlobal()));
+    ASSERT_TRUE(profile_manager_->SetUp());
+    profile_ = profile_manager_->CreateTestingProfile("testing-profile");
     user_manager_ = new FakeUserManager();
     user_manager_enabler_.reset(new ScopedUserManagerEnabler(user_manager_));
-    profile_.reset(new TestingProfile);
     user_manager_->AddUser(profile_->GetProfileName());
+    ServiceFactory::GetInstance()->SetTestingFactory(profile_, &CreateService);
+    file_system_provider_service_ = Service::Get(profile_);
+    file_system_provider_service_->SetFileSystemFactoryForTests(
+        base::Bind(&FakeProvidedFileSystem::Create));
+  }
+
+  virtual void TearDown() OVERRIDE {
+    // Setting the testing factory to NULL will destroy the created service
+    // associated with the testing profile.
+    ServiceFactory::GetInstance()->SetTestingFactory(profile_, NULL);
   }
 
   content::TestBrowserThreadBundle thread_bundle_;
-  scoped_ptr<TestingProfile> profile_;
+  scoped_ptr<TestingProfileManager> profile_manager_;
+  TestingProfile* profile_;  // Owned by TestingProfileManager.
   scoped_ptr<ScopedUserManagerEnabler> user_manager_enabler_;
   FakeUserManager* user_manager_;
+  Service* file_system_provider_service_;  // Owned by its factory.
 };
 
-TEST_F(FileSystemProviderMountPathUtilTest, GetMountPointPath) {
+TEST_F(FileSystemProviderMountPathUtilTest, GetMountPath) {
   const std::string kExtensionId = "mbflcebpggnecokmikipoihdbecnjfoj";
   const int kFileSystemId = 1;
 
-  base::FilePath result =
-      GetMountPointPath(profile_.get(), kExtensionId, kFileSystemId);
-  EXPECT_EQ("/provided/mbflcebpggnecokmikipoihdbecnjfoj-1-testing_profile-hash",
+  base::FilePath result = GetMountPath(profile_, kExtensionId, kFileSystemId);
+  EXPECT_EQ("/provided/mbflcebpggnecokmikipoihdbecnjfoj-1-testing-profile-hash",
             result.AsUTF8Unsafe());
 }
 
+TEST_F(FileSystemProviderMountPathUtilTest, Parser) {
+  const int file_system_id = file_system_provider_service_->MountFileSystem(
+      kExtensionId, kFileSystemName);
+  EXPECT_LT(0, file_system_id);
+
+  const base::FilePath kFilePath = base::FilePath("hello/world.txt");
+  const fileapi::FileSystemURL url =
+      CreateFileSystemURL(profile_, kExtensionId, file_system_id, kFilePath);
+  EXPECT_TRUE(url.is_valid());
+
+  FileSystemURLParser parser(url);
+  EXPECT_TRUE(parser.Parse());
+
+  ProvidedFileSystemInterface* file_system = parser.file_system();
+  ASSERT_TRUE(file_system);
+  EXPECT_EQ(file_system_id, file_system->GetFileSystemInfo().file_system_id());
+  EXPECT_EQ(kFilePath.AsUTF8Unsafe(), parser.file_path().AsUTF8Unsafe());
+}
+
+TEST_F(FileSystemProviderMountPathUtilTest, Parser_RootPath) {
+  const int file_system_id = file_system_provider_service_->MountFileSystem(
+      kExtensionId, kFileSystemName);
+  EXPECT_LT(0, file_system_id);
+
+  const base::FilePath kFilePath = base::FilePath();
+  const fileapi::FileSystemURL url =
+      CreateFileSystemURL(profile_, kExtensionId, file_system_id, kFilePath);
+  EXPECT_TRUE(url.is_valid());
+
+  FileSystemURLParser parser(url);
+  EXPECT_TRUE(parser.Parse());
+
+  ProvidedFileSystemInterface* file_system = parser.file_system();
+  ASSERT_TRUE(file_system);
+  EXPECT_EQ(file_system_id, file_system->GetFileSystemInfo().file_system_id());
+  EXPECT_EQ(kFilePath.AsUTF8Unsafe(), parser.file_path().AsUTF8Unsafe());
+}
+
+TEST_F(FileSystemProviderMountPathUtilTest, Parser_WrongUrl) {
+  const int file_system_id = file_system_provider_service_->MountFileSystem(
+      kExtensionId, kFileSystemName);
+  EXPECT_LT(0, file_system_id);
+
+  const base::FilePath kFilePath = base::FilePath("hello");
+  const fileapi::FileSystemURL url = CreateFileSystemURL(
+      profile_, kExtensionId, file_system_id + 1, kFilePath);
+  // It is impossible to create a cracked URL for a mount point which doesn't
+  // exist, therefore is will always be invalid, and empty.
+  EXPECT_FALSE(url.is_valid());
+
+  FileSystemURLParser parser(url);
+  EXPECT_FALSE(parser.Parse());
+}
+
 }  // namespace util
 }  // namespace file_system_provider
 }  // namespace chromeos