[BlobAsync] Disk support for blob storage

content/child/blob_storage/blob_transport_controller_unittest.cc

-// Copyright 2015 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 "content/child/blob_storage/blob_transport_controller.h"
-
-#include <stddef.h>
-#include <stdint.h>
-#include <tuple>
-
-#include "base/bind.h"
-#include "base/bind_helpers.h"
-#include "base/files/file.h"
-#include "base/files/file_path.h"
-#include "base/files/file_util.h"
-#include "base/memory/shared_memory.h"
-#include "base/message_loop/message_loop.h"
-#include "base/process/process_handle.h"
-#include "base/test/test_file_util.h"
-#include "base/test/test_simple_task_runner.h"
-#include "base/threading/thread_task_runner_handle.h"
-#include "content/child/blob_storage/blob_consolidation.h"
-#include "content/child/thread_safe_sender.h"
-#include "content/common/fileapi/webblob_messages.h"
-#include "ipc/ipc_message.h"
-#include "ipc/ipc_platform_file.h"
-#include "ipc/ipc_sender.h"
-#include "ipc/ipc_sync_message_filter.h"
-#include "ipc/ipc_test_sink.h"
-#include "storage/common/blob_storage/blob_item_bytes_request.h"
-#include "storage/common/blob_storage/blob_item_bytes_response.h"
-#include "testing/gmock/include/gmock/gmock.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-using base::File;
-using base::FilePath;
-using base::TestSimpleTaskRunner;
-using storage::BlobItemBytesRequest;
-using storage::BlobItemBytesResponse;
-using storage::DataElement;
-using storage::IPCBlobCreationCancelCode;
-
-namespace content {
-namespace {
-
-class OtherThreadTestSimpleTaskRunner : public base::TestSimpleTaskRunner {
- public:
-  bool RunsTasksOnCurrentThread() const override { return false; }
-
- protected:
-  ~OtherThreadTestSimpleTaskRunner() override {}
-};
-
-class BlobTransportControllerTestSender : public ThreadSafeSender {
- public:
-  explicit BlobTransportControllerTestSender(IPC::TestSink* ipc_sink)
-      : ThreadSafeSender(nullptr, nullptr), ipc_sink_(ipc_sink) {}
-
-  bool Send(IPC::Message* message) override { return ipc_sink_->Send(message); }
-
- private:
-  ~BlobTransportControllerTestSender() override {}
-
-  IPC::TestSink* ipc_sink_;
-
-  DISALLOW_COPY_AND_ASSIGN(BlobTransportControllerTestSender);
-};
-
-BlobItemBytesResponse ResponseWithData(size_t request_number,
-                                       const std::string& str) {
-  BlobItemBytesResponse response(request_number);
-  response.inline_data.assign(str.begin(), str.end());
-  return response;
-}
-
-static DataElement MakeBlobElement(const std::string& uuid,
-                                   uint64_t offset,
-                                   uint64_t size) {
-  DataElement element;
-  element.SetToBlobRange(uuid, offset, size);
-  return element;
-}
-
-static DataElement MakeDataDescriptionElement(size_t size) {
-  DataElement element;
-  element.SetToBytesDescription(size);
-  return element;
-}
-
-static DataElement MakeDataElement(const std::string& str) {
-  DataElement element;
-  element.SetToBytes(str.c_str(), str.size());
-  return element;
-}
-
-static blink::WebThreadSafeData CreateData(const std::string& str) {
-  return blink::WebThreadSafeData(str.c_str(), str.size());
-}
-
-}  // namespace
-
-class BlobTransportControllerTest : public testing::Test {
- public:
-  BlobTransportControllerTest() : thread_runner_handle_(io_thread_runner_) {}
-
-  void SetUp() override {
-    sender_ = new BlobTransportControllerTestSender(&sink_);
-    BlobTransportController::GetInstance()->CancelAllBlobTransfers();
-  }
-
-  void OnMemoryRequest(
-      BlobTransportController* holder,
-      const std::string uuid,
-      const std::vector<storage::BlobItemBytesRequest>& requests,
-      std::vector<base::SharedMemoryHandle>* memory_handles,
-      std::vector<IPC::PlatformFileForTransit> file_handles) {
-    holder->OnMemoryRequest(uuid, requests, memory_handles, file_handles,
-                            file_thread_runner_.get(), &sink_);
-  }
-
-  FilePath CreateTemporaryFile() {
-    FilePath path;
-    EXPECT_TRUE(base::CreateTemporaryFile(&path));
-    files_opened_.push_back(path);
-    return path;
-  }
-
-  void ExpectRegisterAndStartMessage(const std::string& expected_uuid,
-                                     const std::string& expected_content_type,
-                                     std::vector<DataElement>* descriptions) {
-    const IPC::Message* register_message =
-        sink_.GetUniqueMessageMatching(BlobStorageMsg_RegisterBlobUUID::ID);
-    const IPC::Message* start_message =
-        sink_.GetUniqueMessageMatching(BlobStorageMsg_StartBuildingBlob::ID);
-    ASSERT_TRUE(register_message);
-    ASSERT_TRUE(start_message);
-    std::tuple<std::string, std::string, std::string, std::set<std::string>>
-        register_contents;
-    std::tuple<std::string, std::vector<DataElement>> start_contents;
-    BlobStorageMsg_RegisterBlobUUID::Read(register_message, &register_contents);
-    BlobStorageMsg_StartBuildingBlob::Read(start_message, &start_contents);
-    EXPECT_EQ(expected_uuid, std::get<0>(register_contents));
-    EXPECT_EQ(expected_uuid, std::get<0>(start_contents));
-    EXPECT_EQ(expected_content_type, std::get<1>(register_contents));
-    if (descriptions)
-      *descriptions = std::get<1>(start_contents);
-    // We don't have dispositions from the renderer.
-    EXPECT_TRUE(std::get<2>(register_contents).empty());
-    sink_.ClearMessages();
-  }
-
-  void ExpectMemoryResponses(
-      const std::string& expected_uuid,
-      std::vector<storage::BlobItemBytesResponse> expected_responses) {
-    const IPC::Message* responses_message =
-        sink_.GetUniqueMessageMatching(BlobStorageMsg_MemoryItemResponse::ID);
-    ASSERT_TRUE(responses_message);
-    std::tuple<std::string, std::vector<storage::BlobItemBytesResponse>>
-        responses_content;
-    BlobStorageMsg_MemoryItemResponse::Read(responses_message,
-                                            &responses_content);
-    EXPECT_EQ(expected_uuid, std::get<0>(responses_content));
-    EXPECT_EQ(expected_responses, std::get<1>(responses_content));
-    sink_.ClearMessages();
-  }
-
-  void ExpectCancel(const std::string& expected_uuid,
-                    storage::IPCBlobCreationCancelCode expected_code) {
-    const IPC::Message* cancel_message =
-        sink_.GetUniqueMessageMatching(BlobStorageMsg_CancelBuildingBlob::ID);
-    ASSERT_TRUE(cancel_message);
-    std::tuple<std::string, storage::IPCBlobCreationCancelCode> cancel_content;
-    BlobStorageMsg_CancelBuildingBlob::Read(cancel_message, &cancel_content);
-    EXPECT_EQ(expected_uuid, std::get<0>(cancel_content));
-    EXPECT_EQ(expected_code, std::get<1>(cancel_content));
-  }
-
-  void TearDown() override {
-    BlobTransportController::GetInstance()->CancelAllBlobTransfers();
-    for (const FilePath& path : files_opened_) {
-      EXPECT_TRUE(base::DeleteFile(path, false));
-    }
-    EXPECT_FALSE(io_thread_runner_->HasPendingTask());
-    EXPECT_FALSE(file_thread_runner_->HasPendingTask());
-    EXPECT_FALSE(main_thread_runner_->HasPendingTask());
-  }
-
- protected:
-  std::vector<FilePath> files_opened_;
-
-  IPC::TestSink sink_;
-  scoped_refptr<BlobTransportControllerTestSender> sender_;
-
-  // Thread runners.
-  scoped_refptr<base::TestSimpleTaskRunner> io_thread_runner_ =
-      new TestSimpleTaskRunner();
-  scoped_refptr<base::TestSimpleTaskRunner> file_thread_runner_ =
-      new TestSimpleTaskRunner();
-  scoped_refptr<OtherThreadTestSimpleTaskRunner> main_thread_runner_ =
-      new OtherThreadTestSimpleTaskRunner();
-
-  // We set this to the IO thread runner, as this is used for the
-  // OnMemoryRequest calls, which are on that thread.
-  base::ThreadTaskRunnerHandle thread_runner_handle_;
-};
-
-TEST_F(BlobTransportControllerTest, Descriptions) {
-  const std::string kBlobUUID = "uuid";
-  const std::string KRefBlobUUID = "refuuid";
-  const std::string kBadBlobUUID = "uuuidBad";
-  const size_t kShortcutSize = 11;
-
-  // The first two data elements should be combined and the data shortcut.
-  scoped_refptr<BlobConsolidation> consolidation(new BlobConsolidation());
-  consolidation->AddBlobItem(KRefBlobUUID, 10, 10);
-  consolidation->AddDataItem(CreateData("Hello"));
-  consolidation->AddDataItem(CreateData("Hello2"));
-  consolidation->AddBlobItem(KRefBlobUUID, 0, 10);
-  consolidation->AddDataItem(CreateData("Hello3"));
-
-  std::vector<DataElement> out;
-  BlobTransportController::GetDescriptions(consolidation.get(), kShortcutSize,
-                                           &out);
-
-  std::vector<DataElement> expected;
-  expected.push_back(MakeBlobElement(KRefBlobUUID, 10, 10));
-  expected.push_back(MakeDataElement("HelloHello2"));
-  expected.push_back(MakeBlobElement(KRefBlobUUID, 0, 10));
-  expected.push_back(MakeDataDescriptionElement(6));
-  EXPECT_EQ(expected, out);
-}
-
-TEST_F(BlobTransportControllerTest, Responses) {
-  const std::string kBlobUUID = "uuid";
-  const std::string KRefBlobUUID = "refuuid";
-  const std::string kBadBlobUUID = "uuuidBad";
-  BlobTransportController* holder = BlobTransportController::GetInstance();
-
-  // The first two data elements should be combined.
-  scoped_refptr<BlobConsolidation> consolidation = new BlobConsolidation();
-  consolidation->AddBlobItem(KRefBlobUUID, 10, 10);
-  consolidation->AddDataItem(CreateData("Hello"));
-  consolidation->AddDataItem(CreateData("Hello2"));
-  consolidation->AddBlobItem(KRefBlobUUID, 0, 10);
-  consolidation->AddDataItem(CreateData("Hello3"));
-  // See the above test for the expected descriptions layout.
-
-  holder->blob_storage_[kBlobUUID] = consolidation;
-
-  std::vector<BlobItemBytesRequest> requests;
-  std::vector<base::SharedMemoryHandle> memory_handles;
-  std::vector<IPC::PlatformFileForTransit> file_handles;
-
-  // Request for all of first data
-  requests.push_back(BlobItemBytesRequest::CreateIPCRequest(0, 1, 0, 11));
-  OnMemoryRequest(holder, kBlobUUID, requests, &memory_handles, file_handles);
-  std::vector<storage::BlobItemBytesResponse> expected;
-  expected.push_back(ResponseWithData(0, "HelloHello2"));
-  ExpectMemoryResponses(kBlobUUID, expected);
-
-  // Part of second data
-  requests[0] = BlobItemBytesRequest::CreateIPCRequest(1000, 3, 1, 5);
-  OnMemoryRequest(holder, kBlobUUID, requests, &memory_handles, file_handles);
-  expected.clear();
-  expected.push_back(ResponseWithData(1000, "ello3"));
-  ExpectMemoryResponses(kBlobUUID, expected);
-
-  // Both data segments
-  requests[0] = BlobItemBytesRequest::CreateIPCRequest(0, 1, 0, 11);
-  requests.push_back(BlobItemBytesRequest::CreateIPCRequest(1, 3, 0, 6));
-  OnMemoryRequest(holder, kBlobUUID, requests, &memory_handles, file_handles);
-  expected.clear();
-  expected.push_back(ResponseWithData(0, "HelloHello2"));
-  expected.push_back(ResponseWithData(1, "Hello3"));
-  ExpectMemoryResponses(kBlobUUID, expected);
-}
-
-TEST_F(BlobTransportControllerTest, SharedMemory) {
-  const std::string kBlobUUID = "uuid";
-  const std::string KRefBlobUUID = "refuuid";
-  const std::string kBadBlobUUID = "uuuidBad";
-  BlobTransportController* holder = BlobTransportController::GetInstance();
-
-  // The first two data elements should be combined.
-  scoped_refptr<BlobConsolidation> consolidation = new BlobConsolidation();
-  consolidation->AddBlobItem(KRefBlobUUID, 10, 10);
-  consolidation->AddDataItem(CreateData("Hello"));
-  consolidation->AddDataItem(CreateData("Hello2"));
-  consolidation->AddBlobItem(KRefBlobUUID, 0, 10);
-  consolidation->AddDataItem(CreateData("Hello3"));
-  // See the above test for the expected descriptions layout.
-
-  holder->blob_storage_[kBlobUUID] = consolidation;
-
-  std::vector<BlobItemBytesRequest> requests;
-  std::vector<base::SharedMemoryHandle> memory_handles;
-  std::vector<IPC::PlatformFileForTransit> file_handles;
-
-  // Request for all data in shared memory
-  requests.push_back(
-      BlobItemBytesRequest::CreateSharedMemoryRequest(0, 1, 0, 11, 0, 0));
-  requests.push_back(
-      BlobItemBytesRequest::CreateSharedMemoryRequest(1, 3, 0, 6, 0, 11));
-  base::SharedMemory memory;
-  memory.CreateAndMapAnonymous(11 + 6);
-  base::SharedMemoryHandle handle =
-      base::SharedMemory::DuplicateHandle(memory.handle());
-  CHECK(base::SharedMemory::NULLHandle() != handle);
-  memory_handles.push_back(handle);
-
-  OnMemoryRequest(holder, kBlobUUID, requests, &memory_handles, file_handles);
-  std::vector<storage::BlobItemBytesResponse> expected;
-  expected.push_back(BlobItemBytesResponse(0));
-  expected.push_back(BlobItemBytesResponse(1));
-  ExpectMemoryResponses(kBlobUUID, expected);
-  std::string expected_memory = "HelloHello2Hello3";
-  const char* mem_location = static_cast<const char*>(memory.memory());
-  std::vector<char> value(mem_location, mem_location + memory.requested_size());
-  EXPECT_THAT(value, testing::ElementsAreArray(expected_memory.c_str(),
-                                               expected_memory.size()));
-}
-
-TEST_F(BlobTransportControllerTest, Disk) {
-  const std::string kBlobUUID = "uuid";
-  const std::string kRefBlobUUID = "refuuid";
-  const std::string kBadBlobUUID = "uuuidBad";
-  const std::string kDataPart1 = "Hello";
-  const std::string kDataPart2 = "Hello2";
-  const std::string kDataPart3 = "Hello3";
-  const std::string kData = "HelloHello2Hello3";
-  BlobTransportController* holder = BlobTransportController::GetInstance();
-  FilePath path1 = CreateTemporaryFile();
-  File file(path1, File::FLAG_OPEN | File::FLAG_WRITE | File::FLAG_READ);
-  ASSERT_TRUE(file.IsValid());
-  ASSERT_TRUE(file.SetLength(11 + 6));
-  // The first two data elements should be combined.
-  scoped_refptr<BlobConsolidation> consolidation(new BlobConsolidation());
-  consolidation->AddBlobItem(kRefBlobUUID, 10, 10);
-  consolidation->AddDataItem(CreateData(kDataPart1));
-  consolidation->AddDataItem(CreateData(kDataPart2));
-  consolidation->AddBlobItem(kRefBlobUUID, 0, 10);
-  consolidation->AddDataItem(CreateData(kDataPart3));
-  // See the above test for the expected descriptions layout.
-  holder->blob_storage_[kBlobUUID] = consolidation;
-  holder->main_thread_runner_ = main_thread_runner_;
-  std::vector<BlobItemBytesRequest> requests;
-  std::vector<base::SharedMemoryHandle> memory_handles;
-  std::vector<IPC::PlatformFileForTransit> file_handles;
-  // Request for all data in files.
-  requests.push_back(
-      BlobItemBytesRequest::CreateFileRequest(0, 1, 0, 11, 0, 0));
-  requests.push_back(
-      BlobItemBytesRequest::CreateFileRequest(1, 3, 0, 6, 0, 11));
-  file_handles.push_back(IPC::TakePlatformFileForTransit(std::move(file)));
-  OnMemoryRequest(holder, kBlobUUID, requests, &memory_handles, file_handles);
-  file_handles.clear();
-  EXPECT_TRUE(file_thread_runner_->HasPendingTask());
-  EXPECT_FALSE(io_thread_runner_->HasPendingTask());
-  file_thread_runner_->RunPendingTasks();
-  EXPECT_FALSE(file_thread_runner_->HasPendingTask());
-  EXPECT_TRUE(io_thread_runner_->HasPendingTask());
-  io_thread_runner_->RunPendingTasks();
-  std::vector<storage::BlobItemBytesResponse> expected = {
-      BlobItemBytesResponse(0), BlobItemBytesResponse(1)};
-  ExpectMemoryResponses(kBlobUUID, expected);
-  file = File(path1, File::FLAG_OPEN | File::FLAG_READ);
-  char data[11 + 6];
-  file.Read(0, data, 11 + 6);
-  std::vector<char> value(data, data + 11 + 6);
-  EXPECT_THAT(value, testing::ElementsAreArray(kData.c_str(), kData.size()));
-
-  // Finally, test that we get errors correctly.
-  FilePath path2 = CreateTemporaryFile();
-  EXPECT_TRUE(base::MakeFileUnwritable(path2));
-  File file2(path2, File::FLAG_OPEN | File::FLAG_WRITE);
-  EXPECT_FALSE(file2.IsValid());
-  file_handles.push_back(IPC::TakePlatformFileForTransit(std::move(file2)));
-  OnMemoryRequest(holder, kBlobUUID, requests, &memory_handles, file_handles);
-  EXPECT_TRUE(file_thread_runner_->HasPendingTask());
-  file_thread_runner_->RunPendingTasks();
-  EXPECT_TRUE(io_thread_runner_->HasPendingTask());
-  io_thread_runner_->RunPendingTasks();
-  // Clear the main thread task, as it has the AddRef job.
-  EXPECT_TRUE(main_thread_runner_->HasPendingTask());
-  main_thread_runner_->ClearPendingTasks();
-  ExpectCancel(kBlobUUID, IPCBlobCreationCancelCode::FILE_WRITE_FAILED);
-}
-
-TEST_F(BlobTransportControllerTest, PublicMethods) {
-  const std::string kBlobUUID = "uuid";
-  const std::string kBlobContentType = "content_type";
-  const std::string kBlob2UUID = "uuid2";
-  const std::string kBlob2ContentType = "content_type2";
-  const std::string KRefBlobUUID = "refuuid";
-  const std::string kDataPart1 = "Hello";
-  const std::string kDataPart2 = "Hello2";
-  const std::string kDataPart3 = "Hello3";
-  const std::string kData = "HelloHello2Hello3";
-  std::vector<DataElement> message_descriptions;
-  BlobTransportController* holder = BlobTransportController::GetInstance();
-
-  // Here we test that the
-  scoped_refptr<BlobConsolidation> consolidation = new BlobConsolidation();
-  consolidation->AddBlobItem(KRefBlobUUID, 10, 10);
-  BlobTransportController::InitiateBlobTransfer(
-      kBlobUUID, kBlobContentType, consolidation, sender_,
-      io_thread_runner_.get(), main_thread_runner_);
-  // Check that we have the 'increase ref' pending task.
-  EXPECT_TRUE(main_thread_runner_->HasPendingTask());
-  // Check that we have the 'store' pending task.
-  EXPECT_TRUE(io_thread_runner_->HasPendingTask());
-  // Check that we've sent the data.
-  ExpectRegisterAndStartMessage(kBlobUUID, kBlobContentType,
-                                &message_descriptions);
-  main_thread_runner_->ClearPendingTasks();
-
-  // Check that we got the correct start message.
-  EXPECT_FALSE(holder->IsTransporting(kBlobUUID));
-  io_thread_runner_->RunPendingTasks();
-  EXPECT_TRUE(holder->IsTransporting(kBlobUUID));
-  std::tuple<std::string, std::vector<DataElement>> message_contents;
-  EXPECT_TRUE(holder->IsTransporting(kBlobUUID));
-  EXPECT_EQ(MakeBlobElement(KRefBlobUUID, 10, 10), message_descriptions[0]);
-
-  holder->OnCancel(kBlobUUID, IPCBlobCreationCancelCode::OUT_OF_MEMORY);
-  EXPECT_FALSE(holder->IsTransporting(kBlobUUID));
-  // Check we have the 'decrease ref' task.
-  EXPECT_TRUE(main_thread_runner_->HasPendingTask());
-  main_thread_runner_->ClearPendingTasks();
-  sink_.ClearMessages();
-
-  // Add the second.
-  scoped_refptr<BlobConsolidation> consolidation2 = new BlobConsolidation();
-  consolidation2->AddBlobItem(KRefBlobUUID, 10, 10);
-  // These items should be combined.
-  consolidation2->AddDataItem(CreateData(kDataPart1));
-  consolidation2->AddDataItem(CreateData(kDataPart2));
-  consolidation2->AddDataItem(CreateData(kDataPart3));
-  BlobTransportController::InitiateBlobTransfer(
-      kBlob2UUID, kBlob2ContentType, consolidation2, sender_,
-      io_thread_runner_.get(), main_thread_runner_);
-  // Check that we have the 'increase ref' pending task.
-  EXPECT_TRUE(main_thread_runner_->HasPendingTask());
-  // Check that we have the 'store' pending task.
-  EXPECT_TRUE(io_thread_runner_->HasPendingTask());
-  // Check that we've sent the data.
-  message_descriptions.clear();
-  ExpectRegisterAndStartMessage(kBlob2UUID, kBlob2ContentType,
-                                &message_descriptions);
-  main_thread_runner_->ClearPendingTasks();
-
-  // Check that we got the correct start message.
-  EXPECT_FALSE(holder->IsTransporting(kBlob2UUID));
-  io_thread_runner_->RunPendingTasks();
-  EXPECT_TRUE(holder->IsTransporting(kBlob2UUID));
-  ASSERT_EQ(2u, message_descriptions.size());
-  EXPECT_EQ(MakeBlobElement(KRefBlobUUID, 10, 10), message_descriptions[0]);
-  EXPECT_EQ(MakeDataElement(kData), message_descriptions[1]);
-  EXPECT_FALSE(main_thread_runner_->HasPendingTask());
-
-  // Now we request the memory.
-  std::vector<BlobItemBytesRequest> requests;
-  std::vector<base::SharedMemoryHandle> memory_handles;
-  std::vector<IPC::PlatformFileForTransit> file_handles;
-  requests.push_back(
-      BlobItemBytesRequest::CreateIPCRequest(0, 1, 0, kData.size()));
-  OnMemoryRequest(holder, kBlob2UUID, requests, &memory_handles, file_handles);
-
-  std::vector<BlobItemBytesResponse> expected_responses;
-  BlobItemBytesResponse expected(0);
-  expected.inline_data = std::vector<char>(kData.begin(), kData.end());
-  expected_responses.push_back(expected);
-  ExpectMemoryResponses(kBlob2UUID, expected_responses);
-  EXPECT_FALSE(main_thread_runner_->HasPendingTask());
-
-  // Finish the second one.
-  holder->OnDone(kBlob2UUID);
-  EXPECT_FALSE(holder->IsTransporting(kBlob2UUID));
-  EXPECT_TRUE(main_thread_runner_->HasPendingTask());
-  main_thread_runner_->ClearPendingTasks();
-}
-
-}  // namespace content
+//// Copyright 2015 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 "content/child/blob_storage/blob_transport_controller.h"
+//
+//#include <stddef.h>
+//#include <stdint.h>
+//#include <tuple>
+//
+//#include "base/bind.h"
+//#include "base/bind_helpers.h"
+//#include "base/files/file.h"
+//#include "base/files/file_path.h"
+//#include "base/files/file_util.h"
+//#include "base/memory/shared_memory.h"
+//#include "base/message_loop/message_loop.h"
+//#include "base/process/process_handle.h"
+//#include "base/test/test_file_util.h"
+//#include "base/test/test_simple_task_runner.h"
+//#include "base/threading/thread_task_runner_handle.h"
+//#include "content/child/blob_storage/blob_consolidation.h"
+//#include "content/child/thread_safe_sender.h"
+//#include "content/common/fileapi/webblob_messages.h"
+//#include "ipc/ipc_message.h"
+//#include "ipc/ipc_platform_file.h"
+//#include "ipc/ipc_sender.h"
+//#include "ipc/ipc_sync_message_filter.h"
+//#include "ipc/ipc_test_sink.h"
+//#include "storage/common/blob_storage/blob_item_bytes_request.h"
+//#include "storage/common/blob_storage/blob_item_bytes_response.h"
+//#include "testing/gmock/include/gmock/gmock.h"
+//#include "testing/gtest/include/gtest/gtest.h"
+//
+// using base::File;
+// using base::FilePath;
+// using base::TestSimpleTaskRunner;
+// using storage::BlobItemBytesRequest;
+// using storage::BlobItemBytesResponse;
+// using storage::DataElement;
+// using storage::IPCBlobCreationCancelCode;
+//
+// namespace content {
+// namespace {
+//
+// class OtherThreadTestSimpleTaskRunner : public base::TestSimpleTaskRunner {
+// public:
+//  bool RunsTasksOnCurrentThread() const override { return false; }
+//
+// protected:
+//  ~OtherThreadTestSimpleTaskRunner() override {}
+//};
+//
+// class BlobTransportControllerTestSender : public ThreadSafeSender {
+// public:
+//  explicit BlobTransportControllerTestSender(IPC::TestSink* ipc_sink)
+//      : ThreadSafeSender(nullptr, nullptr), ipc_sink_(ipc_sink) {}
+//
+//  bool Send(IPC::Message* message) override { return ipc_sink_->Send(message);
+//  }
+//
+// private:
+//  ~BlobTransportControllerTestSender() override {}
+//
+//  IPC::TestSink* ipc_sink_;
+//
+//  DISALLOW_COPY_AND_ASSIGN(BlobTransportControllerTestSender);
+//};
+//
+// BlobItemBytesResponse ResponseWithData(size_t request_number,
+//                                       const std::string& str) {
+//  BlobItemBytesResponse response(request_number);
+//  response.inline_data.assign(str.begin(), str.end());
+//  return response;
+//}
+//
+// static DataElement MakeBlobElement(const std::string& uuid,
+//                                   uint64_t offset,
+//                                   uint64_t size) {
+//  DataElement element;
+//  element.SetToBlobRange(uuid, offset, size);
+//  return element;
+//}
+//
+// static DataElement MakeDataDescriptionElement(size_t size) {
+//  DataElement element;
+//  element.SetToBytesDescription(size);
+//  return element;
+//}
+//
+// static DataElement MakeDataElement(const std::string& str) {
+//  DataElement element;
+//  element.SetToBytes(str.c_str(), str.size());
+//  return element;
+//}
+//
+// static blink::WebThreadSafeData CreateData(const std::string& str) {
+//  return blink::WebThreadSafeData(str.c_str(), str.size());
+//}
+//
+//}  // namespace
+//
+// class BlobTransportControllerTest : public testing::Test {
+// public:
+//  BlobTransportControllerTest() : thread_runner_handle_(io_thread_runner_) {}
+//
+//  void SetUp() override {
+//    sender_ = new BlobTransportControllerTestSender(&sink_);
+//    BlobTransportController::GetInstance()->CancelAllBlobTransfers();
+//  }
+//
+//  void OnMemoryRequest(
+//      BlobTransportController* holder,
+//      const std::string uuid,
+//      const std::vector<storage::BlobItemBytesRequest>& requests,
+//      std::vector<base::SharedMemoryHandle>* memory_handles,
+//      std::vector<IPC::PlatformFileForTransit> file_handles) {
+//    holder->OnMemoryRequest(uuid, requests, memory_handles, file_handles,
+//                            file_thread_runner_.get(), &sink_);
+//  }
+//
+//  FilePath CreateTemporaryFile() {
+//    FilePath path;
+//    EXPECT_TRUE(base::CreateTemporaryFile(&path));
+//    files_opened_.push_back(path);
+//    return path;
+//  }
+//
+//  void ExpectRegisterAndStartMessage(const std::string& expected_uuid,
+//                                     const std::string& expected_content_type,
+//                                     std::vector<DataElement>* descriptions) {
+//    const IPC::Message* register_message =
+//        sink_.GetUniqueMessageMatching(BlobStorageMsg_RegisterBlobUUID::ID);
+//    const IPC::Message* start_message =
+//        sink_.GetUniqueMessageMatching(BlobStorageMsg_StartBuildingBlob::ID);
+//    ASSERT_TRUE(register_message);
+//    ASSERT_TRUE(start_message);
+//    std::tuple<std::string, std::string, std::string, std::set<std::string>>
+//        register_contents;
+//    std::tuple<std::string, std::vector<DataElement>> start_contents;
+//    BlobStorageMsg_RegisterBlobUUID::Read(register_message,
+//    &register_contents);
+//    BlobStorageMsg_StartBuildingBlob::Read(start_message, &start_contents);
+//    EXPECT_EQ(expected_uuid, std::get<0>(register_contents));
+//    EXPECT_EQ(expected_uuid, std::get<0>(start_contents));
+//    EXPECT_EQ(expected_content_type, std::get<1>(register_contents));
+//    if (descriptions)
+//      *descriptions = std::get<1>(start_contents);
+//    // We don't have dispositions from the renderer.
+//    EXPECT_TRUE(std::get<2>(register_contents).empty());
+//    sink_.ClearMessages();
+//  }
+//
+//  void ExpectMemoryResponses(
+//      const std::string& expected_uuid,
+//      std::vector<storage::BlobItemBytesResponse> expected_responses) {
+//    const IPC::Message* responses_message =
+//        sink_.GetUniqueMessageMatching(BlobStorageMsg_MemoryItemResponse::ID);
+//    ASSERT_TRUE(responses_message);
+//    std::tuple<std::string, std::vector<storage::BlobItemBytesResponse>>
+//        responses_content;
+//    BlobStorageMsg_MemoryItemResponse::Read(responses_message,
+//                                            &responses_content);
+//    EXPECT_EQ(expected_uuid, std::get<0>(responses_content));
+//    EXPECT_EQ(expected_responses, std::get<1>(responses_content));
+//    sink_.ClearMessages();
+//  }
+//
+//  void ExpectCancel(const std::string& expected_uuid,
+//                    storage::IPCBlobCreationCancelCode expected_code) {
+//    const IPC::Message* cancel_message =
+//        sink_.GetUniqueMessageMatching(BlobStorageMsg_CancelBuildingBlob::ID);
+//    ASSERT_TRUE(cancel_message);
+//    std::tuple<std::string, storage::IPCBlobCreationCancelCode>
+//    cancel_content;
+//    BlobStorageMsg_CancelBuildingBlob::Read(cancel_message, &cancel_content);
+//    EXPECT_EQ(expected_uuid, std::get<0>(cancel_content));
+//    EXPECT_EQ(expected_code, std::get<1>(cancel_content));
+//  }
+//
+//  void TearDown() override {
+//    BlobTransportController::GetInstance()->CancelAllBlobTransfers();
+//    for (const FilePath& path : files_opened_) {
+//      EXPECT_TRUE(base::DeleteFile(path, false));
+//    }
+//    EXPECT_FALSE(io_thread_runner_->HasPendingTask());
+//    EXPECT_FALSE(file_thread_runner_->HasPendingTask());
+//    EXPECT_FALSE(main_thread_runner_->HasPendingTask());
+//  }
+//
+// protected:
+//  std::vector<FilePath> files_opened_;
+//
+//  IPC::TestSink sink_;
+//  scoped_refptr<BlobTransportControllerTestSender> sender_;
+//
+//  // Thread runners.
+//  scoped_refptr<base::TestSimpleTaskRunner> io_thread_runner_ =
+//      new TestSimpleTaskRunner();
+//  scoped_refptr<base::TestSimpleTaskRunner> file_thread_runner_ =
+//      new TestSimpleTaskRunner();
+//  scoped_refptr<OtherThreadTestSimpleTaskRunner> main_thread_runner_ =
+//      new OtherThreadTestSimpleTaskRunner();
+//
+//  // We set this to the IO thread runner, as this is used for the
+//  // OnMemoryRequest calls, which are on that thread.
+//  base::ThreadTaskRunnerHandle thread_runner_handle_;
+//};
+//
+// TEST_F(BlobTransportControllerTest, Descriptions) {
+//  const std::string kBlobUUID = "uuid";
+//  const std::string KRefBlobUUID = "refuuid";
+//  const std::string kBadBlobUUID = "uuuidBad";
+//  const size_t kShortcutSize = 11;
+//
+//  // The first two data elements should be combined and the data shortcut.
+//  scoped_refptr<BlobConsolidation> consolidation(new BlobConsolidation());
+//  consolidation->AddBlobItem(KRefBlobUUID, 10, 10);
+//  consolidation->AddDataItem(CreateData("Hello"));
+//  consolidation->AddDataItem(CreateData("Hello2"));
+//  consolidation->AddBlobItem(KRefBlobUUID, 0, 10);
+//  consolidation->AddDataItem(CreateData("Hello3"));
+//
+//  std::vector<DataElement> out;
+//  BlobTransportController::GetDescriptions(consolidation.get(), kShortcutSize,
+//                                           &out);
+//
+//  std::vector<DataElement> expected;
+//  expected.push_back(MakeBlobElement(KRefBlobUUID, 10, 10));
+//  expected.push_back(MakeDataElement("HelloHello2"));
+//  expected.push_back(MakeBlobElement(KRefBlobUUID, 0, 10));
+//  expected.push_back(MakeDataDescriptionElement(6));
+//  EXPECT_EQ(expected, out);
+//}
+//
+// TEST_F(BlobTransportControllerTest, Responses) {
+//  const std::string kBlobUUID = "uuid";
+//  const std::string KRefBlobUUID = "refuuid";
+//  const std::string kBadBlobUUID = "uuuidBad";
+//  BlobTransportController* holder = BlobTransportController::GetInstance();
+//
+//  // The first two data elements should be combined.
+//  scoped_refptr<BlobConsolidation> consolidation = new BlobConsolidation();
+//  consolidation->AddBlobItem(KRefBlobUUID, 10, 10);
+//  consolidation->AddDataItem(CreateData("Hello"));
+//  consolidation->AddDataItem(CreateData("Hello2"));
+//  consolidation->AddBlobItem(KRefBlobUUID, 0, 10);
+//  consolidation->AddDataItem(CreateData("Hello3"));
+//  // See the above test for the expected descriptions layout.
+//
+//  holder->blob_storage_[kBlobUUID] = consolidation;
+//
+//  std::vector<BlobItemBytesRequest> requests;
+//  std::vector<base::SharedMemoryHandle> memory_handles;
+//  std::vector<IPC::PlatformFileForTransit> file_handles;
+//
+//  // Request for all of first data
+//  requests.push_back(BlobItemBytesRequest::CreateIPCRequest(0, 1, 0, 11));
+//  OnMemoryRequest(holder, kBlobUUID, requests, &memory_handles, file_handles);
+//  std::vector<storage::BlobItemBytesResponse> expected;
+//  expected.push_back(ResponseWithData(0, "HelloHello2"));
+//  ExpectMemoryResponses(kBlobUUID, expected);
+//
+//  // Part of second data
+//  requests[0] = BlobItemBytesRequest::CreateIPCRequest(1000, 3, 1, 5);
+//  OnMemoryRequest(holder, kBlobUUID, requests, &memory_handles, file_handles);
+//  expected.clear();
+//  expected.push_back(ResponseWithData(1000, "ello3"));
+//  ExpectMemoryResponses(kBlobUUID, expected);
+//
+//  // Both data segments
+//  requests[0] = BlobItemBytesRequest::CreateIPCRequest(0, 1, 0, 11);
+//  requests.push_back(BlobItemBytesRequest::CreateIPCRequest(1, 3, 0, 6));
+//  OnMemoryRequest(holder, kBlobUUID, requests, &memory_handles, file_handles);
+//  expected.clear();
+//  expected.push_back(ResponseWithData(0, "HelloHello2"));
+//  expected.push_back(ResponseWithData(1, "Hello3"));
+//  ExpectMemoryResponses(kBlobUUID, expected);
+//}
+//
+// TEST_F(BlobTransportControllerTest, SharedMemory) {
+//  const std::string kBlobUUID = "uuid";
+//  const std::string KRefBlobUUID = "refuuid";
+//  const std::string kBadBlobUUID = "uuuidBad";
+//  BlobTransportController* holder = BlobTransportController::GetInstance();
+//
+//  // The first two data elements should be combined.
+//  scoped_refptr<BlobConsolidation> consolidation = new BlobConsolidation();
+//  consolidation->AddBlobItem(KRefBlobUUID, 10, 10);
+//  consolidation->AddDataItem(CreateData("Hello"));
+//  consolidation->AddDataItem(CreateData("Hello2"));
+//  consolidation->AddBlobItem(KRefBlobUUID, 0, 10);
+//  consolidation->AddDataItem(CreateData("Hello3"));
+//  // See the above test for the expected descriptions layout.
+//
+//  holder->blob_storage_[kBlobUUID] = consolidation;
+//
+//  std::vector<BlobItemBytesRequest> requests;
+//  std::vector<base::SharedMemoryHandle> memory_handles;
+//  std::vector<IPC::PlatformFileForTransit> file_handles;
+//
+//  // Request for all data in shared memory
+//  requests.push_back(
+//      BlobItemBytesRequest::CreateSharedMemoryRequest(0, 1, 0, 11, 0, 0));
+//  requests.push_back(
+//      BlobItemBytesRequest::CreateSharedMemoryRequest(1, 3, 0, 6, 0, 11));
+//  base::SharedMemory memory;
+//  memory.CreateAndMapAnonymous(11 + 6);
+//  base::SharedMemoryHandle handle =
+//      base::SharedMemory::DuplicateHandle(memory.handle());
+//  CHECK(base::SharedMemory::NULLHandle() != handle);
+//  memory_handles.push_back(handle);
+//
+//  OnMemoryRequest(holder, kBlobUUID, requests, &memory_handles, file_handles);
+//  std::vector<storage::BlobItemBytesResponse> expected;
+//  expected.push_back(BlobItemBytesResponse(0));
+//  expected.push_back(BlobItemBytesResponse(1));
+//  ExpectMemoryResponses(kBlobUUID, expected);
+//  std::string expected_memory = "HelloHello2Hello3";
+//  const char* mem_location = static_cast<const char*>(memory.memory());
+//  std::vector<char> value(mem_location, mem_location +
+//  memory.requested_size());
+//  EXPECT_THAT(value, testing::ElementsAreArray(expected_memory.c_str(),
+//                                               expected_memory.size()));
+//}
+//
+// TEST_F(BlobTransportControllerTest, Disk) {
+//  const std::string kBlobUUID = "uuid";
+//  const std::string kRefBlobUUID = "refuuid";
+//  const std::string kBadBlobUUID = "uuuidBad";
+//  const std::string kDataPart1 = "Hello";
+//  const std::string kDataPart2 = "Hello2";
+//  const std::string kDataPart3 = "Hello3";
+//  const std::string kData = "HelloHello2Hello3";
+//  BlobTransportController* holder = BlobTransportController::GetInstance();
+//  FilePath path1 = CreateTemporaryFile();
+//  File file(path1, File::FLAG_OPEN | File::FLAG_WRITE | File::FLAG_READ);
+//  ASSERT_TRUE(file.IsValid());
+//  ASSERT_TRUE(file.SetLength(11 + 6));
+//  // The first two data elements should be combined.
+//  scoped_refptr<BlobConsolidation> consolidation(new BlobConsolidation());
+//  consolidation->AddBlobItem(kRefBlobUUID, 10, 10);
+//  consolidation->AddDataItem(CreateData(kDataPart1));
+//  consolidation->AddDataItem(CreateData(kDataPart2));
+//  consolidation->AddBlobItem(kRefBlobUUID, 0, 10);
+//  consolidation->AddDataItem(CreateData(kDataPart3));
+//  // See the above test for the expected descriptions layout.
+//  holder->blob_storage_[kBlobUUID] = consolidation;
+//  holder->main_thread_runner_ = main_thread_runner_;
+//  std::vector<BlobItemBytesRequest> requests;
+//  std::vector<base::SharedMemoryHandle> memory_handles;
+//  std::vector<IPC::PlatformFileForTransit> file_handles;
+//  // Request for all data in files.
+//  requests.push_back(
+//      BlobItemBytesRequest::CreateFileRequest(0, 1, 0, 11, 0, 0));
+//  requests.push_back(
+//      BlobItemBytesRequest::CreateFileRequest(1, 3, 0, 6, 0, 11));
+//  file_handles.push_back(IPC::TakePlatformFileForTransit(std::move(file)));
+//  OnMemoryRequest(holder, kBlobUUID, requests, &memory_handles, file_handles);
+//  file_handles.clear();
+//  EXPECT_TRUE(file_thread_runner_->HasPendingTask());
+//  EXPECT_FALSE(io_thread_runner_->HasPendingTask());
+//  file_thread_runner_->RunPendingTasks();
+//  EXPECT_FALSE(file_thread_runner_->HasPendingTask());
+//  EXPECT_TRUE(io_thread_runner_->HasPendingTask());
+//  io_thread_runner_->RunPendingTasks();
+//  std::vector<storage::BlobItemBytesResponse> expected = {
+//      BlobItemBytesResponse(0), BlobItemBytesResponse(1)};
+//  ExpectMemoryResponses(kBlobUUID, expected);
+//  file = File(path1, File::FLAG_OPEN | File::FLAG_READ);
+//  char data[11 + 6];
+//  file.Read(0, data, 11 + 6);
+//  std::vector<char> value(data, data + 11 + 6);
+//  EXPECT_THAT(value, testing::ElementsAreArray(kData.c_str(), kData.size()));
+//
+//  // Finally, test that we get errors correctly.
+//  FilePath path2 = CreateTemporaryFile();
+//  EXPECT_TRUE(base::MakeFileUnwritable(path2));
+//  File file2(path2, File::FLAG_OPEN | File::FLAG_WRITE);
+//  EXPECT_FALSE(file2.IsValid());
+//  file_handles.push_back(IPC::TakePlatformFileForTransit(std::move(file2)));
+//  OnMemoryRequest(holder, kBlobUUID, requests, &memory_handles, file_handles);
+//  EXPECT_TRUE(file_thread_runner_->HasPendingTask());
+//  file_thread_runner_->RunPendingTasks();
+//  EXPECT_TRUE(io_thread_runner_->HasPendingTask());
+//  io_thread_runner_->RunPendingTasks();
+//  // Clear the main thread task, as it has the AddRef job.
+//  EXPECT_TRUE(main_thread_runner_->HasPendingTask());
+//  main_thread_runner_->ClearPendingTasks();
+//  ExpectCancel(kBlobUUID, IPCBlobCreationCancelCode::FILE_WRITE_FAILED);
+//}
+//
+// TEST_F(BlobTransportControllerTest, PublicMethods) {
+//  const std::string kBlobUUID = "uuid";
+//  const std::string kBlobContentType = "content_type";
+//  const std::string kBlob2UUID = "uuid2";
+//  const std::string kBlob2ContentType = "content_type2";
+//  const std::string KRefBlobUUID = "refuuid";
+//  const std::string kDataPart1 = "Hello";
+//  const std::string kDataPart2 = "Hello2";
+//  const std::string kDataPart3 = "Hello3";
+//  const std::string kData = "HelloHello2Hello3";
+//  std::vector<DataElement> message_descriptions;
+//  BlobTransportController* holder = BlobTransportController::GetInstance();
+//
+//  // Here we test that the
+//  scoped_refptr<BlobConsolidation> consolidation = new BlobConsolidation();
+//  consolidation->AddBlobItem(KRefBlobUUID, 10, 10);
+//  BlobTransportController::InitiateBlobTransfer(
+//      kBlobUUID, kBlobContentType, consolidation, sender_,
+//      io_thread_runner_.get(), main_thread_runner_);
+//  // Check that we have the 'increase ref' pending task.
+//  EXPECT_TRUE(main_thread_runner_->HasPendingTask());
+//  // Check that we have the 'store' pending task.
+//  EXPECT_TRUE(io_thread_runner_->HasPendingTask());
+//  // Check that we've sent the data.
+//  ExpectRegisterAndStartMessage(kBlobUUID, kBlobContentType,
+//                                &message_descriptions);
+//  main_thread_runner_->ClearPendingTasks();
+//
+//  // Check that we got the correct start message.
+//  EXPECT_FALSE(holder->IsTransporting(kBlobUUID));
+//  io_thread_runner_->RunPendingTasks();
+//  EXPECT_TRUE(holder->IsTransporting(kBlobUUID));
+//  std::tuple<std::string, std::vector<DataElement>> message_contents;
+//  EXPECT_TRUE(holder->IsTransporting(kBlobUUID));
+//  EXPECT_EQ(MakeBlobElement(KRefBlobUUID, 10, 10), message_descriptions[0]);
+//
+//  holder->OnCancel(kBlobUUID, IPCBlobCreationCancelCode::OUT_OF_MEMORY);
+//  EXPECT_FALSE(holder->IsTransporting(kBlobUUID));
+//  // Check we have the 'decrease ref' task.
+//  EXPECT_TRUE(main_thread_runner_->HasPendingTask());
+//  main_thread_runner_->ClearPendingTasks();
+//  sink_.ClearMessages();
+//
+//  // Add the second.
+//  scoped_refptr<BlobConsolidation> consolidation2 = new BlobConsolidation();
+//  consolidation2->AddBlobItem(KRefBlobUUID, 10, 10);
+//  // These items should be combined.
+//  consolidation2->AddDataItem(CreateData(kDataPart1));
+//  consolidation2->AddDataItem(CreateData(kDataPart2));
+//  consolidation2->AddDataItem(CreateData(kDataPart3));
+//  BlobTransportController::InitiateBlobTransfer(
+//      kBlob2UUID, kBlob2ContentType, consolidation2, sender_,
+//      io_thread_runner_.get(), main_thread_runner_);
+//  // Check that we have the 'increase ref' pending task.
+//  EXPECT_TRUE(main_thread_runner_->HasPendingTask());
+//  // Check that we have the 'store' pending task.
+//  EXPECT_TRUE(io_thread_runner_->HasPendingTask());
+//  // Check that we've sent the data.
+//  message_descriptions.clear();
+//  ExpectRegisterAndStartMessage(kBlob2UUID, kBlob2ContentType,
+//                                &message_descriptions);
+//  main_thread_runner_->ClearPendingTasks();
+//
+//  // Check that we got the correct start message.
+//  EXPECT_FALSE(holder->IsTransporting(kBlob2UUID));
+//  io_thread_runner_->RunPendingTasks();
+//  EXPECT_TRUE(holder->IsTransporting(kBlob2UUID));
+//  ASSERT_EQ(2u, message_descriptions.size());
+//  EXPECT_EQ(MakeBlobElement(KRefBlobUUID, 10, 10), message_descriptions[0]);
+//  EXPECT_EQ(MakeDataElement(kData), message_descriptions[1]);
+//  EXPECT_FALSE(main_thread_runner_->HasPendingTask());
+//
+//  // Now we request the memory.
+//  std::vector<BlobItemBytesRequest> requests;
+//  std::vector<base::SharedMemoryHandle> memory_handles;
+//  std::vector<IPC::PlatformFileForTransit> file_handles;
+//  requests.push_back(
+//      BlobItemBytesRequest::CreateIPCRequest(0, 1, 0, kData.size()));
+//  OnMemoryRequest(holder, kBlob2UUID, requests, &memory_handles,
+//  file_handles);
+//
+//  std::vector<BlobItemBytesResponse> expected_responses;
+//  BlobItemBytesResponse expected(0);
+//  expected.inline_data = std::vector<char>(kData.begin(), kData.end());
+//  expected_responses.push_back(expected);
+//  ExpectMemoryResponses(kBlob2UUID, expected_responses);
+//  EXPECT_FALSE(main_thread_runner_->HasPendingTask());
+//
+//  // Finish the second one.
+//  holder->OnDone(kBlob2UUID);
+//  EXPECT_FALSE(holder->IsTransporting(kBlob2UUID));
+//  EXPECT_TRUE(main_thread_runner_->HasPendingTask());
+//  main_thread_runner_->ClearPendingTasks();
+//}
+//
+//}  // namespace content