src/content/browser/appcache/appcache_url_request_job_unittest.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 #include <stack>
   6 #include <utility>
   7
   8 #include "base/bind.h"
   9 #include "base/bind_helpers.h"
  10 #include "base/callback.h"
  11 #include "base/compiler_specific.h"
  12 #include "base/pickle.h"
  13 #include "base/synchronization/waitable_event.h"
  14 #include "base/threading/thread.h"
  15 #include "content/browser/appcache/appcache_response.h"
  16 #include "content/browser/appcache/appcache_url_request_job.h"
  17 #include "content/browser/appcache/mock_appcache_service.h"
  18 #include "net/base/io_buffer.h"
  19 #include "net/base/net_errors.h"
  20 #include "net/base/request_priority.h"
  21 #include "net/http/http_response_headers.h"
  22 #include "net/url_request/url_request.h"
  23 #include "net/url_request/url_request_context.h"
  24 #include "net/url_request/url_request_error_job.h"
  25 #include "net/url_request/url_request_job_factory.h"
  26 #include "testing/gtest/include/gtest/gtest.h"
  27
  28 using net::IOBuffer;
  29 using net::WrappedIOBuffer;
  30
  31 namespace content {
  32
  33 namespace {
  34
  35 const char kHttpBasicHeaders[] = "HTTP/1.0 200 OK\0Content-Length: 5\0\0";
  36 const char kHttpBasicBody[] = "Hello";
  37
  38 const int kNumBlocks = 4;
  39 const int kBlockSize = 1024;
  40
  41 class MockURLRequestJobFactory : public net::URLRequestJobFactory {
  42  public:
  43   MockURLRequestJobFactory() : job_(NULL) {
  44   }
  45
  46   virtual ~MockURLRequestJobFactory() {
  47     DCHECK(!job_);
  48   }
  49
  50   void SetJob(net::URLRequestJob* job) {
  51     job_ = job;
  52   }
  53
  54   bool has_job() const {
  55     return job_ != NULL;
  56   }
  57
  58   // net::URLRequestJobFactory implementation.
  59   virtual net::URLRequestJob* MaybeCreateJobWithProtocolHandler(
  60       const std::string& scheme,
  61       net::URLRequest* request,
  62       net::NetworkDelegate* network_delegate) const OVERRIDE {
  63     if (job_) {
  64       net::URLRequestJob* temp = job_;
  65       job_ = NULL;
  66       return temp;
  67     } else {
  68       return new net::URLRequestErrorJob(request,
  69                                          network_delegate,
  70                                          net::ERR_INTERNET_DISCONNECTED);
  71     }
  72   }
  73
  74   virtual bool IsHandledProtocol(const std::string& scheme) const OVERRIDE {
  75     return scheme == "http";
  76   };
  77
  78   virtual bool IsHandledURL(const GURL& url) const OVERRIDE {
  79     return url.SchemeIs("http");
  80   }
  81
  82   virtual bool IsSafeRedirectTarget(const GURL& location) const OVERRIDE {
  83     return false;
  84   }
  85
  86   private:
  87    mutable net::URLRequestJob* job_;
  88 };
  89
  90 class AppCacheURLRequestJobTest : public testing::Test {
  91  public:
  92
  93   // Test Harness -------------------------------------------------------------
  94   // TODO(michaeln): share this test harness with AppCacheResponseTest
  95
  96   class MockStorageDelegate : public AppCacheStorage::Delegate {
  97    public:
  98     explicit MockStorageDelegate(AppCacheURLRequestJobTest* test)
  99         : loaded_info_id_(0), test_(test) {
 100     }
 101
 102     virtual void OnResponseInfoLoaded(AppCacheResponseInfo* info,
 103                                       int64 response_id) OVERRIDE {
 104       loaded_info_ = info;
 105       loaded_info_id_ = response_id;
 106       test_->ScheduleNextTask();
 107     }
 108
 109     scoped_refptr<AppCacheResponseInfo> loaded_info_;
 110     int64 loaded_info_id_;
 111     AppCacheURLRequestJobTest* test_;
 112   };
 113
 114   class MockURLRequestDelegate : public net::URLRequest::Delegate {
 115    public:
 116     explicit MockURLRequestDelegate(AppCacheURLRequestJobTest* test)
 117         : test_(test),
 118           received_data_(new net::IOBuffer(kNumBlocks * kBlockSize)),
 119           did_receive_headers_(false), amount_received_(0),
 120           kill_after_amount_received_(0), kill_with_io_pending_(false) {
 121     }
 122
 123     virtual void OnResponseStarted(net::URLRequest* request) OVERRIDE {
 124       amount_received_ = 0;
 125       did_receive_headers_ = false;
 126       if (request->status().is_success()) {
 127         EXPECT_TRUE(request->response_headers());
 128         did_receive_headers_ = true;
 129         received_info_ = request->response_info();
 130         ReadSome(request);
 131       } else {
 132         RequestComplete();
 133       }
 134     }
 135
 136     virtual void OnReadCompleted(net::URLRequest* request,
 137                                  int bytes_read) OVERRIDE {
 138       if (bytes_read > 0) {
 139         amount_received_ += bytes_read;
 140
 141         if (kill_after_amount_received_ && !kill_with_io_pending_) {
 142           if (amount_received_ >= kill_after_amount_received_) {
 143             request->Cancel();
 144             return;
 145           }
 146         }
 147
 148         ReadSome(request);
 149
 150         if (kill_after_amount_received_ && kill_with_io_pending_) {
 151           if (amount_received_ >= kill_after_amount_received_) {
 152             request->Cancel();
 153             return;
 154           }
 155         }
 156       } else {
 157         RequestComplete();
 158       }
 159     }
 160
 161     void ReadSome(net::URLRequest* request) {
 162       DCHECK(amount_received_ + kBlockSize <= kNumBlocks * kBlockSize);
 163       scoped_refptr<IOBuffer> wrapped_buffer(
 164           new net::WrappedIOBuffer(received_data_->data() + amount_received_));
 165       int bytes_read = 0;
 166       EXPECT_FALSE(
 167           request->Read(wrapped_buffer.get(), kBlockSize, &bytes_read));
 168       EXPECT_EQ(0, bytes_read);
 169     }
 170
 171     void RequestComplete() {
 172       test_->ScheduleNextTask();
 173     }
 174
 175     AppCacheURLRequestJobTest* test_;
 176     net::HttpResponseInfo received_info_;
 177     scoped_refptr<net::IOBuffer> received_data_;
 178     bool did_receive_headers_;
 179     int amount_received_;
 180     int kill_after_amount_received_;
 181     bool kill_with_io_pending_;
 182   };
 183
 184   // Helper callback to run a test on our io_thread. The io_thread is spun up
 185   // once and reused for all tests.
 186   template <class Method>
 187   void MethodWrapper(Method method) {
 188     SetUpTest();
 189     (this->*method)();
 190   }
 191
 192   static void SetUpTestCase() {
 193     io_thread_.reset(new base::Thread("AppCacheURLRequestJobTest Thread"));
 194     base::Thread::Options options(base::MessageLoop::TYPE_IO, 0);
 195     io_thread_->StartWithOptions(options);
 196   }
 197
 198   static void TearDownTestCase() {
 199     io_thread_.reset(NULL);
 200   }
 201
 202   AppCacheURLRequestJobTest() {}
 203
 204   template <class Method>
 205   void RunTestOnIOThread(Method method) {
 206     test_finished_event_ .reset(new base::WaitableEvent(false, false));
 207     io_thread_->message_loop()->PostTask(
 208         FROM_HERE, base::Bind(&AppCacheURLRequestJobTest::MethodWrapper<Method>,
 209                               base::Unretained(this), method));
 210     test_finished_event_->Wait();
 211   }
 212
 213   void SetUpTest() {
 214     DCHECK(base::MessageLoop::current() == io_thread_->message_loop());
 215     DCHECK(task_stack_.empty());
 216
 217     storage_delegate_.reset(new MockStorageDelegate(this));
 218     service_.reset(new MockAppCacheService());
 219     expected_read_result_ = 0;
 220     expected_write_result_ = 0;
 221     written_response_id_ = 0;
 222     reader_deletion_count_down_ = 0;
 223     writer_deletion_count_down_ = 0;
 224
 225     url_request_delegate_.reset(new MockURLRequestDelegate(this));
 226     job_factory_.reset(new MockURLRequestJobFactory());
 227     empty_context_.reset(new net::URLRequestContext());
 228     empty_context_->set_job_factory(job_factory_.get());
 229   }
 230
 231   void TearDownTest() {
 232     DCHECK(base::MessageLoop::current() == io_thread_->message_loop());
 233     request_.reset();
 234
 235     while (!task_stack_.empty())
 236       task_stack_.pop();
 237
 238     reader_.reset();
 239     read_buffer_ = NULL;
 240     read_info_buffer_ = NULL;
 241     writer_.reset();
 242     write_buffer_ = NULL;
 243     write_info_buffer_ = NULL;
 244     storage_delegate_.reset();
 245     service_.reset();
 246
 247     DCHECK(!job_factory_->has_job());
 248     empty_context_.reset();
 249     job_factory_.reset();
 250     url_request_delegate_.reset();
 251   }
 252
 253   void TestFinished() {
 254     // We unwind the stack prior to finishing up to let stack
 255     // based objects get deleted.
 256     DCHECK(base::MessageLoop::current() == io_thread_->message_loop());
 257     base::MessageLoop::current()->PostTask(
 258         FROM_HERE,
 259         base::Bind(&AppCacheURLRequestJobTest::TestFinishedUnwound,
 260                    base::Unretained(this)));
 261   }
 262
 263   void TestFinishedUnwound() {
 264     TearDownTest();
 265     test_finished_event_->Signal();
 266   }
 267
 268   void PushNextTask(const base::Closure& task) {
 269     task_stack_.push(std::pair<base::Closure, bool>(task, false));
 270   }
 271
 272   void PushNextTaskAsImmediate(const base::Closure& task) {
 273     task_stack_.push(std::pair<base::Closure, bool>(task, true));
 274   }
 275
 276   void ScheduleNextTask() {
 277     DCHECK(base::MessageLoop::current() == io_thread_->message_loop());
 278     if (task_stack_.empty()) {
 279       TestFinished();
 280       return;
 281     }
 282     base::Closure task =task_stack_.top().first;
 283     bool immediate = task_stack_.top().second;
 284     task_stack_.pop();
 285     if (immediate)
 286       task.Run();
 287     else
 288       base::MessageLoop::current()->PostTask(FROM_HERE, task);
 289   }
 290
 291   // Wrappers to call AppCacheResponseReader/Writer Read and Write methods
 292
 293   void WriteBasicResponse() {
 294     scoped_refptr<IOBuffer> body(new WrappedIOBuffer(kHttpBasicBody));
 295     std::string raw_headers(kHttpBasicHeaders, arraysize(kHttpBasicHeaders));
 296     WriteResponse(
 297         MakeHttpResponseInfo(raw_headers), body.get(), strlen(kHttpBasicBody));
 298   }
 299
 300   void WriteResponse(net::HttpResponseInfo* head,
 301                      IOBuffer* body, int body_len) {
 302     DCHECK(body);
 303     scoped_refptr<IOBuffer> body_ref(body);
 304     PushNextTask(base::Bind(&AppCacheURLRequestJobTest::WriteResponseBody,
 305                             base::Unretained(this), body_ref, body_len));
 306     WriteResponseHead(head);
 307   }
 308
 309   void WriteResponseHead(net::HttpResponseInfo* head) {
 310     EXPECT_FALSE(writer_->IsWritePending());
 311     expected_write_result_ = GetHttpResponseInfoSize(head);
 312     write_info_buffer_ = new HttpResponseInfoIOBuffer(head);
 313     writer_->WriteInfo(
 314         write_info_buffer_.get(),
 315         base::Bind(&AppCacheURLRequestJobTest::OnWriteInfoComplete,
 316                    base::Unretained(this)));
 317   }
 318
 319   void WriteResponseBody(scoped_refptr<IOBuffer> io_buffer, int buf_len) {
 320     EXPECT_FALSE(writer_->IsWritePending());
 321     write_buffer_ = io_buffer;
 322     expected_write_result_ = buf_len;
 323     writer_->WriteData(write_buffer_.get(),
 324                        buf_len,
 325                        base::Bind(&AppCacheURLRequestJobTest::OnWriteComplete,
 326                                   base::Unretained(this)));
 327   }
 328
 329   void ReadResponseBody(scoped_refptr<IOBuffer> io_buffer, int buf_len) {
 330     EXPECT_FALSE(reader_->IsReadPending());
 331     read_buffer_ = io_buffer;
 332     expected_read_result_ = buf_len;
 333     reader_->ReadData(read_buffer_.get(),
 334                       buf_len,
 335                       base::Bind(&AppCacheURLRequestJobTest::OnReadComplete,
 336                                  base::Unretained(this)));
 337   }
 338
 339   // AppCacheResponseReader / Writer completion callbacks
 340
 341   void OnWriteInfoComplete(int result) {
 342     EXPECT_FALSE(writer_->IsWritePending());
 343     EXPECT_EQ(expected_write_result_, result);
 344     ScheduleNextTask();
 345   }
 346
 347   void OnWriteComplete(int result) {
 348     EXPECT_FALSE(writer_->IsWritePending());
 349     EXPECT_EQ(expected_write_result_, result);
 350     ScheduleNextTask();
 351   }
 352
 353   void OnReadInfoComplete(int result) {
 354     EXPECT_FALSE(reader_->IsReadPending());
 355     EXPECT_EQ(expected_read_result_, result);
 356     ScheduleNextTask();
 357   }
 358
 359   void OnReadComplete(int result) {
 360     EXPECT_FALSE(reader_->IsReadPending());
 361     EXPECT_EQ(expected_read_result_, result);
 362     ScheduleNextTask();
 363   }
 364
 365   // Helpers to work with HttpResponseInfo objects
 366
 367   net::HttpResponseInfo* MakeHttpResponseInfo(const std::string& raw_headers) {
 368     net::HttpResponseInfo* info = new net::HttpResponseInfo;
 369     info->request_time = base::Time::Now();
 370     info->response_time = base::Time::Now();
 371     info->was_cached = false;
 372     info->headers = new net::HttpResponseHeaders(raw_headers);
 373     return info;
 374   }
 375
 376   int GetHttpResponseInfoSize(const net::HttpResponseInfo* info) {
 377     Pickle pickle;
 378     return PickleHttpResonseInfo(&pickle, info);
 379   }
 380
 381   bool CompareHttpResponseInfos(const net::HttpResponseInfo* info1,
 382                                 const net::HttpResponseInfo* info2) {
 383     Pickle pickle1;
 384     Pickle pickle2;
 385     PickleHttpResonseInfo(&pickle1, info1);
 386     PickleHttpResonseInfo(&pickle2, info2);
 387     return (pickle1.size() == pickle2.size()) &&
 388            (0 == memcmp(pickle1.data(), pickle2.data(), pickle1.size()));
 389   }
 390
 391   int PickleHttpResonseInfo(Pickle* pickle, const net::HttpResponseInfo* info) {
 392     const bool kSkipTransientHeaders = true;
 393     const bool kTruncated = false;
 394     info->Persist(pickle, kSkipTransientHeaders, kTruncated);
 395     return pickle->size();
 396   }
 397
 398   // Helpers to fill and verify blocks of memory with a value
 399
 400   void FillData(char value, char* data, int data_len) {
 401     memset(data, value, data_len);
 402   }
 403
 404   bool CheckData(char value, const char* data, int data_len) {
 405     for (int i = 0; i < data_len; ++i, ++data) {
 406       if (*data != value)
 407         return false;
 408     }
 409     return true;
 410   }
 411
 412   // Individual Tests ---------------------------------------------------------
 413   // Some of the individual tests involve multiple async steps. Each test
 414   // is delineated with a section header.
 415
 416   // Basic -------------------------------------------------------------------
 417   void Basic() {
 418     AppCacheStorage* storage = service_->storage();
 419     net::URLRequest request(GURL("http://blah/"), net::DEFAULT_PRIORITY, NULL,
 420                             empty_context_.get());
 421     scoped_refptr<AppCacheURLRequestJob> job;
 422
 423     // Create an instance and see that it looks as expected.
 424
 425     job = new AppCacheURLRequestJob(
 426         &request, NULL, storage, NULL, false);
 427     EXPECT_TRUE(job->is_waiting());
 428     EXPECT_FALSE(job->is_delivering_appcache_response());
 429     EXPECT_FALSE(job->is_delivering_network_response());
 430     EXPECT_FALSE(job->is_delivering_error_response());
 431     EXPECT_FALSE(job->has_been_started());
 432     EXPECT_FALSE(job->has_been_killed());
 433     EXPECT_EQ(GURL(), job->manifest_url());
 434     EXPECT_EQ(kAppCacheNoCacheId, job->cache_id());
 435     EXPECT_FALSE(job->entry().has_response_id());
 436
 437     TestFinished();
 438   }
 439
 440   // DeliveryOrders -----------------------------------------------------
 441   void DeliveryOrders() {
 442     AppCacheStorage* storage = service_->storage();
 443     net::URLRequest request(GURL("http://blah/"), net::DEFAULT_PRIORITY, NULL,
 444                             empty_context_.get());
 445     scoped_refptr<AppCacheURLRequestJob> job;
 446
 447     // Create an instance, give it a delivery order and see that
 448     // it looks as expected.
 449
 450     job = new AppCacheURLRequestJob(&request, NULL, storage, NULL, false);
 451     job->DeliverErrorResponse();
 452     EXPECT_TRUE(job->is_delivering_error_response());
 453     EXPECT_FALSE(job->has_been_started());
 454
 455     job = new AppCacheURLRequestJob(&request, NULL, storage, NULL, false);
 456     job->DeliverNetworkResponse();
 457     EXPECT_TRUE(job->is_delivering_network_response());
 458     EXPECT_FALSE(job->has_been_started());
 459
 460     job = new AppCacheURLRequestJob(&request, NULL, storage, NULL, false);
 461     const GURL kManifestUrl("http://blah/");
 462     const int64 kCacheId(1);
 463     const int64 kGroupId(1);
 464     const AppCacheEntry kEntry(AppCacheEntry::EXPLICIT, 1);
 465     job->DeliverAppCachedResponse(kManifestUrl, kCacheId, kGroupId,
 466                                   kEntry, false);
 467     EXPECT_FALSE(job->is_waiting());
 468     EXPECT_TRUE(job->is_delivering_appcache_response());
 469     EXPECT_FALSE(job->has_been_started());
 470     EXPECT_EQ(kManifestUrl, job->manifest_url());
 471     EXPECT_EQ(kCacheId, job->cache_id());
 472     EXPECT_EQ(kGroupId, job->group_id());
 473     EXPECT_EQ(kEntry.types(), job->entry().types());
 474     EXPECT_EQ(kEntry.response_id(), job->entry().response_id());
 475
 476     TestFinished();
 477   }
 478
 479   // DeliverNetworkResponse --------------------------------------------------
 480
 481   void DeliverNetworkResponse() {
 482     // This test has async steps.
 483     PushNextTask(
 484         base::Bind(&AppCacheURLRequestJobTest::VerifyDeliverNetworkResponse,
 485                    base::Unretained(this)));
 486
 487     AppCacheStorage* storage = service_->storage();
 488     request_ = empty_context_->CreateRequest(GURL("http://blah/"),
 489                                              net::DEFAULT_PRIORITY,
 490                                              url_request_delegate_.get(),
 491                                              NULL);
 492
 493     // Setup to create an AppCacheURLRequestJob with orders to deliver
 494     // a network response.
 495     AppCacheURLRequestJob* mock_job = new AppCacheURLRequestJob(
 496         request_.get(), NULL, storage, NULL, false);
 497     job_factory_->SetJob(mock_job);
 498     mock_job->DeliverNetworkResponse();
 499     EXPECT_TRUE(mock_job->is_delivering_network_response());
 500     EXPECT_FALSE(mock_job->has_been_started());
 501
 502     // Start the request.
 503     request_->Start();
 504
 505     // The job should have been picked up.
 506     EXPECT_FALSE(job_factory_->has_job());
 507     // Completion is async.
 508   }
 509
 510   void VerifyDeliverNetworkResponse() {
 511     EXPECT_EQ(request_->status().error(),
 512               net::ERR_INTERNET_DISCONNECTED);
 513     TestFinished();
 514   }
 515
 516   // DeliverErrorResponse --------------------------------------------------
 517
 518   void DeliverErrorResponse() {
 519     // This test has async steps.
 520     PushNextTask(
 521         base::Bind(&AppCacheURLRequestJobTest::VerifyDeliverErrorResponse,
 522                    base::Unretained(this)));
 523
 524     AppCacheStorage* storage = service_->storage();
 525     request_ = empty_context_->CreateRequest(GURL("http://blah/"),
 526                                              net::DEFAULT_PRIORITY,
 527                                              url_request_delegate_.get(),
 528                                              NULL);
 529
 530     // Setup to create an AppCacheURLRequestJob with orders to deliver
 531     // a network response.
 532     AppCacheURLRequestJob* mock_job = new AppCacheURLRequestJob(
 533         request_.get(), NULL, storage, NULL, false);
 534     job_factory_->SetJob(mock_job);
 535     mock_job->DeliverErrorResponse();
 536     EXPECT_TRUE(mock_job->is_delivering_error_response());
 537     EXPECT_FALSE(mock_job->has_been_started());
 538
 539     // Start the request.
 540     request_->Start();
 541
 542     // The job should have been picked up.
 543     EXPECT_FALSE(job_factory_->has_job());
 544     // Completion is async.
 545   }
 546
 547   void VerifyDeliverErrorResponse() {
 548     EXPECT_EQ(request_->status().error(), net::ERR_FAILED);
 549     TestFinished();
 550   }
 551
 552   // DeliverSmallAppCachedResponse --------------------------------------
 553   // "Small" being small enough to read completely in a single
 554   // request->Read call.
 555
 556   void DeliverSmallAppCachedResponse() {
 557     // This test has several async steps.
 558     // 1. Write a small response to response storage.
 559     // 2. Use net::URLRequest to retrieve it.
 560     // 3. Verify we received what we expected to receive.
 561
 562     PushNextTask(base::Bind(
 563         &AppCacheURLRequestJobTest::VerifyDeliverSmallAppCachedResponse,
 564         base::Unretained(this)));
 565     PushNextTask(
 566         base::Bind(&AppCacheURLRequestJobTest::RequestAppCachedResource,
 567                    base::Unretained(this), false));
 568
 569     writer_.reset(service_->storage()->CreateResponseWriter(GURL(), 0));
 570     written_response_id_ = writer_->response_id();
 571     WriteBasicResponse();
 572     // Continues async
 573   }
 574
 575   void RequestAppCachedResource(bool start_after_delivery_orders) {
 576     AppCacheStorage* storage = service_->storage();
 577     request_ = empty_context_->CreateRequest(GURL("http://blah/"),
 578                                              net::DEFAULT_PRIORITY,
 579                                              url_request_delegate_.get(),
 580                                              NULL);
 581
 582     // Setup to create an AppCacheURLRequestJob with orders to deliver
 583     // a network response.
 584     scoped_refptr<AppCacheURLRequestJob> job(new AppCacheURLRequestJob(
 585         request_.get(), NULL, storage, NULL, false));
 586
 587     if (start_after_delivery_orders) {
 588       job->DeliverAppCachedResponse(
 589           GURL(), 0, 111,
 590           AppCacheEntry(AppCacheEntry::EXPLICIT, written_response_id_),
 591           false);
 592       EXPECT_TRUE(job->is_delivering_appcache_response());
 593     }
 594
 595     // Start the request.
 596     EXPECT_FALSE(job->has_been_started());
 597     job_factory_->SetJob(job.get());
 598     request_->Start();
 599     EXPECT_FALSE(job_factory_->has_job());
 600     EXPECT_TRUE(job->has_been_started());
 601
 602     if (!start_after_delivery_orders) {
 603       job->DeliverAppCachedResponse(
 604           GURL(), 0, 111,
 605           AppCacheEntry(AppCacheEntry::EXPLICIT, written_response_id_),
 606           false);
 607       EXPECT_TRUE(job->is_delivering_appcache_response());
 608     }
 609
 610     // Completion is async.
 611   }
 612
 613   void VerifyDeliverSmallAppCachedResponse() {
 614     EXPECT_TRUE(request_->status().is_success());
 615     EXPECT_TRUE(CompareHttpResponseInfos(
 616         write_info_buffer_->http_info.get(),
 617         &url_request_delegate_->received_info_));
 618     EXPECT_EQ(5, url_request_delegate_->amount_received_);
 619     EXPECT_EQ(0, memcmp(kHttpBasicBody,
 620                         url_request_delegate_->received_data_->data(),
 621                         strlen(kHttpBasicBody)));
 622     TestFinished();
 623   }
 624
 625   // DeliverLargeAppCachedResponse --------------------------------------
 626   // "Large" enough to require multiple calls to request->Read to complete.
 627
 628   void DeliverLargeAppCachedResponse() {
 629     // This test has several async steps.
 630     // 1. Write a large response to response storage.
 631     // 2. Use net::URLRequest to retrieve it.
 632     // 3. Verify we received what we expected to receive.
 633
 634     PushNextTask(base::Bind(
 635        &AppCacheURLRequestJobTest::VerifyDeliverLargeAppCachedResponse,
 636        base::Unretained(this)));
 637     PushNextTask(base::Bind(
 638        &AppCacheURLRequestJobTest::RequestAppCachedResource,
 639        base::Unretained(this), true));
 640
 641     writer_.reset(service_->storage()->CreateResponseWriter(GURL(), 0));
 642     written_response_id_ = writer_->response_id();
 643     WriteLargeResponse();
 644     // Continues async
 645   }
 646
 647   void WriteLargeResponse() {
 648     // 3, 1k blocks
 649     static const char kHttpHeaders[] =
 650         "HTTP/1.0 200 OK\0Content-Length: 3072\0\0";
 651     scoped_refptr<IOBuffer> body(new IOBuffer(kBlockSize * 3));
 652     char* p = body->data();
 653     for (int i = 0; i < 3; ++i, p += kBlockSize)
 654       FillData(i + 1, p, kBlockSize);
 655     std::string raw_headers(kHttpHeaders, arraysize(kHttpHeaders));
 656     WriteResponse(
 657         MakeHttpResponseInfo(raw_headers), body.get(), kBlockSize * 3);
 658   }
 659
 660   void VerifyDeliverLargeAppCachedResponse() {
 661     EXPECT_TRUE(request_->status().is_success());
 662     EXPECT_TRUE(CompareHttpResponseInfos(
 663         write_info_buffer_->http_info.get(),
 664         &url_request_delegate_->received_info_));
 665     EXPECT_EQ(3072, url_request_delegate_->amount_received_);
 666     char* p = url_request_delegate_->received_data_->data();
 667     for (int i = 0; i < 3; ++i, p += kBlockSize)
 668       EXPECT_TRUE(CheckData(i + 1, p, kBlockSize));
 669     TestFinished();
 670   }
 671
 672   // DeliverPartialResponse --------------------------------------
 673
 674   void DeliverPartialResponse() {
 675     // This test has several async steps.
 676     // 1. Write a small response to response storage.
 677     // 2. Use net::URLRequest to retrieve it a subset using a range request
 678     // 3. Verify we received what we expected to receive.
 679     PushNextTask(base::Bind(
 680        &AppCacheURLRequestJobTest::VerifyDeliverPartialResponse,
 681        base::Unretained(this)));
 682     PushNextTask(base::Bind(
 683        &AppCacheURLRequestJobTest::MakeRangeRequest, base::Unretained(this)));
 684     writer_.reset(service_->storage()->CreateResponseWriter(GURL(), 0));
 685     written_response_id_ = writer_->response_id();
 686     WriteBasicResponse();
 687     // Continues async
 688   }
 689
 690   void MakeRangeRequest() {
 691     AppCacheStorage* storage = service_->storage();
 692     request_ = empty_context_->CreateRequest(GURL("http://blah/"),
 693                                              net::DEFAULT_PRIORITY,
 694                                              url_request_delegate_.get(),
 695                                              NULL);
 696
 697     // Request a range, the 3 middle chars out of 'Hello'
 698     net::HttpRequestHeaders extra_headers;
 699     extra_headers.SetHeader("Range", "bytes= 1-3");
 700     request_->SetExtraRequestHeaders(extra_headers);
 701
 702     // Create job with orders to deliver an appcached entry.
 703     scoped_refptr<AppCacheURLRequestJob> job(new AppCacheURLRequestJob(
 704         request_.get(), NULL, storage, NULL, false));
 705     job->DeliverAppCachedResponse(
 706         GURL(), 0, 111,
 707         AppCacheEntry(AppCacheEntry::EXPLICIT, written_response_id_),
 708         false);
 709     EXPECT_TRUE(job->is_delivering_appcache_response());
 710
 711     // Start the request.
 712     EXPECT_FALSE(job->has_been_started());
 713     job_factory_->SetJob(job.get());
 714     request_->Start();
 715     EXPECT_FALSE(job_factory_->has_job());
 716     EXPECT_TRUE(job->has_been_started());
 717     // Completion is async.
 718   }
 719
 720   void VerifyDeliverPartialResponse() {
 721     EXPECT_TRUE(request_->status().is_success());
 722     EXPECT_EQ(3, url_request_delegate_->amount_received_);
 723     EXPECT_EQ(0, memcmp(kHttpBasicBody + 1,
 724                         url_request_delegate_->received_data_->data(),
 725                         3));
 726     net::HttpResponseHeaders* headers =
 727         url_request_delegate_->received_info_.headers.get();
 728     EXPECT_EQ(206, headers->response_code());
 729     EXPECT_EQ(3, headers->GetContentLength());
 730     int64 range_start, range_end, object_size;
 731     EXPECT_TRUE(
 732         headers->GetContentRange(&range_start, &range_end, &object_size));
 733     EXPECT_EQ(1, range_start);
 734     EXPECT_EQ(3, range_end);
 735     EXPECT_EQ(5, object_size);
 736     TestFinished();
 737   }
 738
 739   // CancelRequest --------------------------------------
 740
 741   void CancelRequest() {
 742     // This test has several async steps.
 743     // 1. Write a large response to response storage.
 744     // 2. Use net::URLRequest to retrieve it.
 745     // 3. Cancel the request after data starts coming in.
 746
 747     PushNextTask(base::Bind(
 748        &AppCacheURLRequestJobTest::VerifyCancel, base::Unretained(this)));
 749     PushNextTask(base::Bind(
 750        &AppCacheURLRequestJobTest::RequestAppCachedResource,
 751        base::Unretained(this), true));
 752
 753     writer_.reset(service_->storage()->CreateResponseWriter(GURL(), 0));
 754     written_response_id_ = writer_->response_id();
 755     WriteLargeResponse();
 756
 757     url_request_delegate_->kill_after_amount_received_ = kBlockSize;
 758     url_request_delegate_->kill_with_io_pending_ = false;
 759     // Continues async
 760   }
 761
 762   void VerifyCancel() {
 763     EXPECT_EQ(net::URLRequestStatus::CANCELED,
 764               request_->status().status());
 765     TestFinished();
 766   }
 767
 768   // CancelRequestWithIOPending --------------------------------------
 769
 770   void CancelRequestWithIOPending() {
 771     // This test has several async steps.
 772     // 1. Write a large response to response storage.
 773     // 2. Use net::URLRequest to retrieve it.
 774     // 3. Cancel the request after data starts coming in.
 775
 776     PushNextTask(base::Bind(
 777        &AppCacheURLRequestJobTest::VerifyCancel, base::Unretained(this)));
 778     PushNextTask(base::Bind(
 779        &AppCacheURLRequestJobTest::RequestAppCachedResource,
 780        base::Unretained(this), true));
 781
 782     writer_.reset(service_->storage()->CreateResponseWriter(GURL(), 0));
 783     written_response_id_ = writer_->response_id();
 784     WriteLargeResponse();
 785
 786     url_request_delegate_->kill_after_amount_received_ = kBlockSize;
 787     url_request_delegate_->kill_with_io_pending_ = true;
 788     // Continues async
 789   }
 790
 791
 792   // Data members --------------------------------------------------------
 793
 794   scoped_ptr<base::WaitableEvent> test_finished_event_;
 795   scoped_ptr<MockStorageDelegate> storage_delegate_;
 796   scoped_ptr<MockAppCacheService> service_;
 797   std::stack<std::pair<base::Closure, bool> > task_stack_;
 798
 799   scoped_ptr<AppCacheResponseReader> reader_;
 800   scoped_refptr<HttpResponseInfoIOBuffer> read_info_buffer_;
 801   scoped_refptr<IOBuffer> read_buffer_;
 802   int expected_read_result_;
 803   int reader_deletion_count_down_;
 804
 805   int64 written_response_id_;
 806   scoped_ptr<AppCacheResponseWriter> writer_;
 807   scoped_refptr<HttpResponseInfoIOBuffer> write_info_buffer_;
 808   scoped_refptr<IOBuffer> write_buffer_;
 809   int expected_write_result_;
 810   int writer_deletion_count_down_;
 811
 812   scoped_ptr<MockURLRequestJobFactory> job_factory_;
 813   scoped_ptr<net::URLRequestContext> empty_context_;
 814   scoped_ptr<net::URLRequest> request_;
 815   scoped_ptr<MockURLRequestDelegate> url_request_delegate_;
 816
 817   static scoped_ptr<base::Thread> io_thread_;
 818 };
 819
 820 // static
 821 scoped_ptr<base::Thread> AppCacheURLRequestJobTest::io_thread_;
 822
 823 TEST_F(AppCacheURLRequestJobTest, Basic) {
 824   RunTestOnIOThread(&AppCacheURLRequestJobTest::Basic);
 825 }
 826
 827 TEST_F(AppCacheURLRequestJobTest, DeliveryOrders) {
 828   RunTestOnIOThread(&AppCacheURLRequestJobTest::DeliveryOrders);
 829 }
 830
 831 TEST_F(AppCacheURLRequestJobTest, DeliverNetworkResponse) {
 832   RunTestOnIOThread(&AppCacheURLRequestJobTest::DeliverNetworkResponse);
 833 }
 834
 835 TEST_F(AppCacheURLRequestJobTest, DeliverErrorResponse) {
 836   RunTestOnIOThread(&AppCacheURLRequestJobTest::DeliverErrorResponse);
 837 }
 838
 839 TEST_F(AppCacheURLRequestJobTest, DeliverSmallAppCachedResponse) {
 840   RunTestOnIOThread(&AppCacheURLRequestJobTest::DeliverSmallAppCachedResponse);
 841 }
 842
 843 TEST_F(AppCacheURLRequestJobTest, DeliverLargeAppCachedResponse) {
 844   RunTestOnIOThread(&AppCacheURLRequestJobTest::DeliverLargeAppCachedResponse);
 845 }
 846
 847 TEST_F(AppCacheURLRequestJobTest, DeliverPartialResponse) {
 848   RunTestOnIOThread(&AppCacheURLRequestJobTest::DeliverPartialResponse);
 849 }
 850
 851 TEST_F(AppCacheURLRequestJobTest, CancelRequest) {
 852   RunTestOnIOThread(&AppCacheURLRequestJobTest::CancelRequest);
 853 }
 854
 855 TEST_F(AppCacheURLRequestJobTest, CancelRequestWithIOPending) {
 856   RunTestOnIOThread(&AppCacheURLRequestJobTest::CancelRequestWithIOPending);
 857 }
 858
 859 }  // namespace
 860
 861 }  // namespace content