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