webkit/appcache/appcache_url_request_job_unittest.cc

   1 // Copyright (c) 2011 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 "net/base/io_buffer.h"
  16 #include "net/base/net_errors.h"
  17 #include "net/http/http_response_headers.h"
  18 #include "net/url_request/url_request.h"
  19 #include "net/url_request/url_request_context.h"
  20 #include "net/url_request/url_request_error_job.h"
  21 #include "testing/gtest/include/gtest/gtest.h"
  22 #include "webkit/appcache/appcache_response.h"
  23 #include "webkit/appcache/appcache_url_request_job.h"
  24 #include "webkit/appcache/mock_appcache_service.h"
  25
  26 using net::IOBuffer;
  27 using net::WrappedIOBuffer;
  28
  29 namespace appcache {
  30
  31 static const char kHttpBasicHeaders[] =
  32     "HTTP/1.0 200 OK\0Content-Length: 5\0\0";
  33 static const char kHttpBasicBody[] = "Hello";
  34
  35 static const int kNumBlocks = 4;
  36 static const int kBlockSize = 1024;
  37
  38 class AppCacheURLRequestJobTest : public testing::Test {
  39  public:
  40
  41   // Test Harness -------------------------------------------------------------
  42   // TODO(michaeln): share this test harness with AppCacheResponseTest
  43
  44   class MockStorageDelegate : public AppCacheStorage::Delegate {
  45    public:
  46     explicit MockStorageDelegate(AppCacheURLRequestJobTest* test)
  47         : loaded_info_id_(0), test_(test) {
  48     }
  49
  50     virtual void OnResponseInfoLoaded(AppCacheResponseInfo* info,
  51                                       int64 response_id) {
  52       loaded_info_ = info;
  53       loaded_info_id_ = response_id;
  54       test_->ScheduleNextTask();
  55     }
  56
  57     scoped_refptr<AppCacheResponseInfo> loaded_info_;
  58     int64 loaded_info_id_;
  59     AppCacheURLRequestJobTest* test_;
  60   };
  61
  62   class MockURLRequestDelegate : public net::URLRequest::Delegate {
  63    public:
  64     explicit MockURLRequestDelegate(AppCacheURLRequestJobTest* test)
  65         : test_(test),
  66           received_data_(new net::IOBuffer(kNumBlocks * kBlockSize)),
  67           did_receive_headers_(false), amount_received_(0),
  68           kill_after_amount_received_(0), kill_with_io_pending_(false) {
  69     }
  70
  71     virtual void OnResponseStarted(net::URLRequest* request) {
  72       amount_received_ = 0;
  73       did_receive_headers_ = false;
  74       if (request->status().is_success()) {
  75         EXPECT_TRUE(request->response_headers());
  76         did_receive_headers_ = true;
  77         received_info_ = request->response_info();
  78         ReadSome(request);
  79       } else {
  80         RequestComplete();
  81       }
  82     }
  83
  84     virtual void OnReadCompleted(net::URLRequest* request, int bytes_read) {
  85       if (bytes_read > 0) {
  86         amount_received_ += bytes_read;
  87
  88         if (kill_after_amount_received_ && !kill_with_io_pending_) {
  89           if (amount_received_ >= kill_after_amount_received_) {
  90             request->Cancel();
  91             return;
  92           }
  93         }
  94
  95         ReadSome(request);
  96
  97         if (kill_after_amount_received_ && kill_with_io_pending_) {
  98           if (amount_received_ >= kill_after_amount_received_) {
  99             request->Cancel();
 100             return;
 101           }
 102         }
 103       } else {
 104         RequestComplete();
 105       }
 106     }
 107
 108     void ReadSome(net::URLRequest* request) {
 109       DCHECK(amount_received_ + kBlockSize <= kNumBlocks * kBlockSize);
 110       scoped_refptr<IOBuffer> wrapped_buffer(
 111           new net::WrappedIOBuffer(received_data_->data() + amount_received_));
 112       int bytes_read = 0;
 113       EXPECT_FALSE(request->Read(wrapped_buffer, kBlockSize, &bytes_read));
 114       EXPECT_EQ(0, bytes_read);
 115     }
 116
 117     void RequestComplete() {
 118       test_->ScheduleNextTask();
 119     }
 120
 121     AppCacheURLRequestJobTest* test_;
 122     net::HttpResponseInfo received_info_;
 123     scoped_refptr<net::IOBuffer> received_data_;
 124     bool did_receive_headers_;
 125     int amount_received_;
 126     int kill_after_amount_received_;
 127     bool kill_with_io_pending_;
 128   };
 129
 130   static net::URLRequestJob* MockHttpJobFactory(
 131       net::URLRequest* request,
 132       net::NetworkDelegate* network_delegate,
 133       const std::string& scheme) {
 134     if (mock_factory_job_) {
 135       net::URLRequestJob* temp = mock_factory_job_;
 136       mock_factory_job_ = NULL;
 137       return temp;
 138     } else {
 139       return new net::URLRequestErrorJob(request,
 140                                          network_delegate,
 141                                          net::ERR_INTERNET_DISCONNECTED);
 142     }
 143   }
 144
 145   // Helper callback to run a test on our io_thread. The io_thread is spun up
 146   // once and reused for all tests.
 147   template <class Method>
 148   void MethodWrapper(Method method) {
 149     SetUpTest();
 150     (this->*method)();
 151   }
 152
 153   static void SetUpTestCase() {
 154     io_thread_.reset(new base::Thread("AppCacheURLRequestJobTest Thread"));
 155     base::Thread::Options options(MessageLoop::TYPE_IO, 0);
 156     io_thread_->StartWithOptions(options);
 157   }
 158
 159   static void TearDownTestCase() {
 160     io_thread_.reset(NULL);
 161   }
 162
 163   AppCacheURLRequestJobTest() {}
 164
 165   template <class Method>
 166   void RunTestOnIOThread(Method method) {
 167     test_finished_event_ .reset(new base::WaitableEvent(false, false));
 168     io_thread_->message_loop()->PostTask(
 169         FROM_HERE, base::Bind(&AppCacheURLRequestJobTest::MethodWrapper<Method>,
 170                               base::Unretained(this), method));
 171     test_finished_event_->Wait();
 172   }
 173
 174   void SetUpTest() {
 175     DCHECK(MessageLoop::current() == io_thread_->message_loop());
 176     DCHECK(task_stack_.empty());
 177     orig_http_factory_ = net::URLRequest::Deprecated::RegisterProtocolFactory(
 178         "http", MockHttpJobFactory);
 179     url_request_delegate_.reset(new MockURLRequestDelegate(this));
 180     storage_delegate_.reset(new MockStorageDelegate(this));
 181     service_.reset(new MockAppCacheService());
 182     expected_read_result_ = 0;
 183     expected_write_result_ = 0;
 184     written_response_id_ = 0;
 185     reader_deletion_count_down_ = 0;
 186     writer_deletion_count_down_ = 0;
 187   }
 188
 189   void TearDownTest() {
 190     DCHECK(MessageLoop::current() == io_thread_->message_loop());
 191     net::URLRequest::Deprecated::RegisterProtocolFactory(
 192         "http", orig_http_factory_);
 193     orig_http_factory_ = NULL;
 194     request_.reset();
 195     url_request_delegate_.reset();
 196     DCHECK(!mock_factory_job_);
 197
 198     while (!task_stack_.empty())
 199       task_stack_.pop();
 200
 201     reader_.reset();
 202     read_buffer_ = NULL;
 203     read_info_buffer_ = NULL;
 204     writer_.reset();
 205     write_buffer_ = NULL;
 206     write_info_buffer_ = NULL;
 207     storage_delegate_.reset();
 208     service_.reset();
 209   }
 210
 211   void TestFinished() {
 212     // We unwind the stack prior to finishing up to let stack
 213     // based objects get deleted.
 214     DCHECK(MessageLoop::current() == io_thread_->message_loop());
 215     MessageLoop::current()->PostTask(FROM_HERE,
 216         base::Bind(&AppCacheURLRequestJobTest::TestFinishedUnwound,
 217                    base::Unretained(this)));
 218   }
 219
 220   void TestFinishedUnwound() {
 221     TearDownTest();
 222     test_finished_event_->Signal();
 223   }
 224
 225   void PushNextTask(const base::Closure& task) {
 226     task_stack_.push(std::pair<base::Closure, bool>(task, false));
 227   }
 228
 229   void PushNextTaskAsImmediate(const base::Closure& task) {
 230     task_stack_.push(std::pair<base::Closure, bool>(task, true));
 231   }
 232
 233   void ScheduleNextTask() {
 234     DCHECK(MessageLoop::current() == io_thread_->message_loop());
 235     if (task_stack_.empty()) {
 236       TestFinished();
 237       return;
 238     }
 239     base::Closure task =task_stack_.top().first;
 240     bool immediate = task_stack_.top().second;
 241     task_stack_.pop();
 242     if (immediate)
 243       task.Run();
 244     else
 245       MessageLoop::current()->PostTask(FROM_HERE, task);
 246   }
 247
 248   // Wrappers to call AppCacheResponseReader/Writer Read and Write methods
 249
 250   void WriteBasicResponse() {
 251     scoped_refptr<IOBuffer> body(new WrappedIOBuffer(kHttpBasicBody));
 252     std::string raw_headers(kHttpBasicHeaders, arraysize(kHttpBasicHeaders));
 253     WriteResponse(MakeHttpResponseInfo(raw_headers), body,
 254                   strlen(kHttpBasicBody));
 255   }
 256
 257   void WriteResponse(net::HttpResponseInfo* head,
 258                      IOBuffer* body, int body_len) {
 259     DCHECK(body);
 260     scoped_refptr<IOBuffer> body_ref(body);
 261     PushNextTask(base::Bind(&AppCacheURLRequestJobTest::WriteResponseBody,
 262                             base::Unretained(this), body_ref, body_len));
 263     WriteResponseHead(head);
 264   }
 265
 266   void WriteResponseHead(net::HttpResponseInfo* head) {
 267     EXPECT_FALSE(writer_->IsWritePending());
 268     expected_write_result_ = GetHttpResponseInfoSize(head);
 269     write_info_buffer_ = new HttpResponseInfoIOBuffer(head);
 270     writer_->WriteInfo(
 271         write_info_buffer_,
 272         base::Bind(&AppCacheURLRequestJobTest::OnWriteInfoComplete,
 273                    base::Unretained(this)));
 274   }
 275
 276   void WriteResponseBody(scoped_refptr<IOBuffer> io_buffer, int buf_len) {
 277     EXPECT_FALSE(writer_->IsWritePending());
 278     write_buffer_ = io_buffer;
 279     expected_write_result_ = buf_len;
 280     writer_->WriteData(
 281         write_buffer_, buf_len,
 282         base::Bind(&AppCacheURLRequestJobTest::OnWriteComplete,
 283                    base::Unretained(this)));
 284   }
 285
 286   void ReadResponseBody(scoped_refptr<IOBuffer> io_buffer, int buf_len) {
 287     EXPECT_FALSE(reader_->IsReadPending());
 288     read_buffer_ = io_buffer;
 289     expected_read_result_ = buf_len;
 290     reader_->ReadData(
 291         read_buffer_, buf_len,
 292         base::Bind(&AppCacheURLRequestJobTest::OnReadComplete,
 293                    base::Unretained(this)));
 294   }
 295
 296   // AppCacheResponseReader / Writer completion callbacks
 297
 298   void OnWriteInfoComplete(int result) {
 299     EXPECT_FALSE(writer_->IsWritePending());
 300     EXPECT_EQ(expected_write_result_, result);
 301     ScheduleNextTask();
 302   }
 303
 304   void OnWriteComplete(int result) {
 305     EXPECT_FALSE(writer_->IsWritePending());
 306     EXPECT_EQ(expected_write_result_, result);
 307     ScheduleNextTask();
 308   }
 309
 310   void OnReadInfoComplete(int result) {
 311     EXPECT_FALSE(reader_->IsReadPending());
 312     EXPECT_EQ(expected_read_result_, result);
 313     ScheduleNextTask();
 314   }
 315
 316   void OnReadComplete(int result) {
 317     EXPECT_FALSE(reader_->IsReadPending());
 318     EXPECT_EQ(expected_read_result_, result);
 319     ScheduleNextTask();
 320   }
 321
 322   // Helpers to work with HttpResponseInfo objects
 323
 324   net::HttpResponseInfo* MakeHttpResponseInfo(const std::string& raw_headers) {
 325     net::HttpResponseInfo* info = new net::HttpResponseInfo;
 326     info->request_time = base::Time::Now();
 327     info->response_time = base::Time::Now();
 328     info->was_cached = false;
 329     info->headers = new net::HttpResponseHeaders(raw_headers);
 330     return info;
 331   }
 332
 333   int GetHttpResponseInfoSize(const net::HttpResponseInfo* info) {
 334     Pickle pickle;
 335     return PickleHttpResonseInfo(&pickle, info);
 336   }
 337
 338   bool CompareHttpResponseInfos(const net::HttpResponseInfo* info1,
 339                                 const net::HttpResponseInfo* info2) {
 340     Pickle pickle1;
 341     Pickle pickle2;
 342     PickleHttpResonseInfo(&pickle1, info1);
 343     PickleHttpResonseInfo(&pickle2, info2);
 344     return (pickle1.size() == pickle2.size()) &&
 345            (0 == memcmp(pickle1.data(), pickle2.data(), pickle1.size()));
 346   }
 347
 348   int PickleHttpResonseInfo(Pickle* pickle, const net::HttpResponseInfo* info) {
 349     const bool kSkipTransientHeaders = true;
 350     const bool kTruncated = false;
 351     info->Persist(pickle, kSkipTransientHeaders, kTruncated);
 352     return pickle->size();
 353   }
 354
 355   // Helpers to fill and verify blocks of memory with a value
 356
 357   void FillData(char value, char* data, int data_len) {
 358     memset(data, value, data_len);
 359   }
 360
 361   bool CheckData(char value, const char* data, int data_len) {
 362     for (int i = 0; i < data_len; ++i, ++data) {
 363       if (*data != value)
 364         return false;
 365     }
 366     return true;
 367   }
 368
 369   // Individual Tests ---------------------------------------------------------
 370   // Some of the individual tests involve multiple async steps. Each test
 371   // is delineated with a section header.
 372
 373   // Basic -------------------------------------------------------------------
 374   void Basic() {
 375     AppCacheStorage* storage = service_->storage();
 376     net::URLRequest request(GURL("http://blah/"), NULL, &empty_context_);
 377     scoped_refptr<AppCacheURLRequestJob> job;
 378
 379     // Create an instance and see that it looks as expected.
 380
 381     job = new AppCacheURLRequestJob(
 382         &request, empty_context_.network_delegate(), storage);
 383     EXPECT_TRUE(job->is_waiting());
 384     EXPECT_FALSE(job->is_delivering_appcache_response());
 385     EXPECT_FALSE(job->is_delivering_network_response());
 386     EXPECT_FALSE(job->is_delivering_error_response());
 387     EXPECT_FALSE(job->has_been_started());
 388     EXPECT_FALSE(job->has_been_killed());
 389     EXPECT_EQ(GURL(), job->manifest_url());
 390     EXPECT_EQ(kNoCacheId, job->cache_id());
 391     EXPECT_FALSE(job->entry().has_response_id());
 392
 393     TestFinished();
 394   }
 395
 396   // DeliveryOrders -----------------------------------------------------
 397   void DeliveryOrders() {
 398     AppCacheStorage* storage = service_->storage();
 399     net::URLRequest request(GURL("http://blah/"), NULL, &empty_context_);
 400     scoped_refptr<AppCacheURLRequestJob> job;
 401
 402     // Create an instance, give it a delivery order and see that
 403     // it looks as expected.
 404
 405     job = new AppCacheURLRequestJob(
 406         &request, empty_context_.network_delegate(), storage);
 407     job->DeliverErrorResponse();
 408     EXPECT_TRUE(job->is_delivering_error_response());
 409     EXPECT_FALSE(job->has_been_started());
 410
 411     job = new AppCacheURLRequestJob(
 412         &request, empty_context_.network_delegate(), storage);
 413     job->DeliverNetworkResponse();
 414     EXPECT_TRUE(job->is_delivering_network_response());
 415     EXPECT_FALSE(job->has_been_started());
 416
 417     job = new AppCacheURLRequestJob(
 418         &request, empty_context_.network_delegate(), storage);
 419     const GURL kManifestUrl("http://blah/");
 420     const int64 kCacheId(1);
 421     const int64 kGroupId(1);
 422     const AppCacheEntry kEntry(AppCacheEntry::EXPLICIT, 1);
 423     job->DeliverAppCachedResponse(kManifestUrl, kCacheId, kGroupId,
 424                                   kEntry, false);
 425     EXPECT_FALSE(job->is_waiting());
 426     EXPECT_TRUE(job->is_delivering_appcache_response());
 427     EXPECT_FALSE(job->has_been_started());
 428     EXPECT_EQ(kManifestUrl, job->manifest_url());
 429     EXPECT_EQ(kCacheId, job->cache_id());
 430     EXPECT_EQ(kGroupId, job->group_id());
 431     EXPECT_EQ(kEntry.types(), job->entry().types());
 432     EXPECT_EQ(kEntry.response_id(), job->entry().response_id());
 433
 434     TestFinished();
 435   }
 436
 437   // DeliverNetworkResponse --------------------------------------------------
 438
 439   void DeliverNetworkResponse() {
 440     // This test has async steps.
 441     PushNextTask(
 442         base::Bind(&AppCacheURLRequestJobTest::VerifyDeliverNetworkResponse,
 443                    base::Unretained(this)));
 444
 445     AppCacheStorage* storage = service_->storage();
 446     request_.reset(empty_context_.CreateRequest(
 447         GURL("http://blah/"), url_request_delegate_.get()));
 448
 449     // Setup to create an AppCacheURLRequestJob with orders to deliver
 450     // a network response.
 451     mock_factory_job_ = new AppCacheURLRequestJob(
 452         request_.get(), empty_context_.network_delegate(), storage);
 453     mock_factory_job_->DeliverNetworkResponse();
 454     EXPECT_TRUE(mock_factory_job_->is_delivering_network_response());
 455     EXPECT_FALSE(mock_factory_job_->has_been_started());
 456
 457     // Start the request.
 458     request_->Start();
 459
 460     // The job should have been picked up.
 461     EXPECT_FALSE(mock_factory_job_);
 462     // Completion is async.
 463   }
 464
 465   void VerifyDeliverNetworkResponse() {
 466     EXPECT_EQ(request_->status().error(),
 467               net::ERR_INTERNET_DISCONNECTED);
 468     TestFinished();
 469   }
 470
 471   // DeliverErrorResponse --------------------------------------------------
 472
 473   void DeliverErrorResponse() {
 474     // This test has async steps.
 475     PushNextTask(
 476         base::Bind(&AppCacheURLRequestJobTest::VerifyDeliverErrorResponse,
 477                    base::Unretained(this)));
 478
 479     AppCacheStorage* storage = service_->storage();
 480     request_.reset(empty_context_.CreateRequest(GURL(
 481         "http://blah/"), url_request_delegate_.get()));
 482
 483     // Setup to create an AppCacheURLRequestJob with orders to deliver
 484     // a network response.
 485     mock_factory_job_ = new AppCacheURLRequestJob(
 486         request_.get(), empty_context_.network_delegate(), storage);
 487     mock_factory_job_->DeliverErrorResponse();
 488     EXPECT_TRUE(mock_factory_job_->is_delivering_error_response());
 489     EXPECT_FALSE(mock_factory_job_->has_been_started());
 490
 491     // Start the request.
 492     request_->Start();
 493
 494     // The job should have been picked up.
 495     EXPECT_FALSE(mock_factory_job_);
 496     // Completion is async.
 497   }
 498
 499   void VerifyDeliverErrorResponse() {
 500     EXPECT_EQ(request_->status().error(), net::ERR_FAILED);
 501     TestFinished();
 502   }
 503
 504   // DeliverSmallAppCachedResponse --------------------------------------
 505   // "Small" being small enough to read completely in a single
 506   // request->Read call.
 507
 508   void DeliverSmallAppCachedResponse() {
 509     // This test has several async steps.
 510     // 1. Write a small response to response storage.
 511     // 2. Use net::URLRequest to retrieve it.
 512     // 3. Verify we received what we expected to receive.
 513
 514     PushNextTask(base::Bind(
 515         &AppCacheURLRequestJobTest::VerifyDeliverSmallAppCachedResponse,
 516         base::Unretained(this)));
 517     PushNextTask(
 518         base::Bind(&AppCacheURLRequestJobTest::RequestAppCachedResource,
 519                    base::Unretained(this), false));
 520
 521     writer_.reset(service_->storage()->CreateResponseWriter(GURL(), 0));
 522     written_response_id_ = writer_->response_id();
 523     WriteBasicResponse();
 524     // Continues async
 525   }
 526
 527   void RequestAppCachedResource(bool start_after_delivery_orders) {
 528     AppCacheStorage* storage = service_->storage();
 529     request_.reset(empty_context_.CreateRequest(
 530         GURL("http://blah/"), url_request_delegate_.get()));
 531
 532     // Setup to create an AppCacheURLRequestJob with orders to deliver
 533     // a network response.
 534     scoped_refptr<AppCacheURLRequestJob> job(new AppCacheURLRequestJob(
 535         request_.get(), empty_context_.network_delegate(), storage));
 536
 537     if (start_after_delivery_orders) {
 538       job->DeliverAppCachedResponse(
 539           GURL(), 0, 111,
 540           AppCacheEntry(AppCacheEntry::EXPLICIT, written_response_id_),
 541           false);
 542       EXPECT_TRUE(job->is_delivering_appcache_response());
 543     }
 544
 545     // Start the request.
 546     EXPECT_FALSE(job->has_been_started());
 547     mock_factory_job_ = job;
 548     request_->Start();
 549     EXPECT_FALSE(mock_factory_job_);
 550     EXPECT_TRUE(job->has_been_started());
 551
 552     if (!start_after_delivery_orders) {
 553       job->DeliverAppCachedResponse(
 554           GURL(), 0, 111,
 555           AppCacheEntry(AppCacheEntry::EXPLICIT, written_response_id_),
 556           false);
 557       EXPECT_TRUE(job->is_delivering_appcache_response());
 558     }
 559
 560     // Completion is async.
 561   }
 562
 563   void VerifyDeliverSmallAppCachedResponse() {
 564     EXPECT_TRUE(request_->status().is_success());
 565     EXPECT_TRUE(CompareHttpResponseInfos(
 566         write_info_buffer_->http_info.get(),
 567         &url_request_delegate_->received_info_));
 568     EXPECT_EQ(5, url_request_delegate_->amount_received_);
 569     EXPECT_EQ(0, memcmp(kHttpBasicBody,
 570                         url_request_delegate_->received_data_->data(),
 571                         strlen(kHttpBasicBody)));
 572     TestFinished();
 573   }
 574
 575   // DeliverLargeAppCachedResponse --------------------------------------
 576   // "Large" enough to require multiple calls to request->Read to complete.
 577
 578   void DeliverLargeAppCachedResponse() {
 579     // This test has several async steps.
 580     // 1. Write a large response to response storage.
 581     // 2. Use net::URLRequest to retrieve it.
 582     // 3. Verify we received what we expected to receive.
 583
 584     PushNextTask(base::Bind(
 585        &AppCacheURLRequestJobTest::VerifyDeliverLargeAppCachedResponse,
 586        base::Unretained(this)));
 587     PushNextTask(base::Bind(
 588        &AppCacheURLRequestJobTest::RequestAppCachedResource,
 589        base::Unretained(this), true));
 590
 591     writer_.reset(service_->storage()->CreateResponseWriter(GURL(), 0));
 592     written_response_id_ = writer_->response_id();
 593     WriteLargeResponse();
 594     // Continues async
 595   }
 596
 597   void WriteLargeResponse() {
 598     // 3, 1k blocks
 599     static const char kHttpHeaders[] =
 600         "HTTP/1.0 200 OK\0Content-Length: 3072\0\0";
 601     scoped_refptr<IOBuffer> body(new IOBuffer(kBlockSize * 3));
 602     char* p = body->data();
 603     for (int i = 0; i < 3; ++i, p += kBlockSize)
 604       FillData(i + 1, p, kBlockSize);
 605     std::string raw_headers(kHttpHeaders, arraysize(kHttpHeaders));
 606     WriteResponse(MakeHttpResponseInfo(raw_headers), body, kBlockSize * 3);
 607   }
 608
 609   void VerifyDeliverLargeAppCachedResponse() {
 610     EXPECT_TRUE(request_->status().is_success());
 611     EXPECT_TRUE(CompareHttpResponseInfos(
 612         write_info_buffer_->http_info.get(),
 613         &url_request_delegate_->received_info_));
 614     EXPECT_EQ(3072, url_request_delegate_->amount_received_);
 615     char* p = url_request_delegate_->received_data_->data();
 616     for (int i = 0; i < 3; ++i, p += kBlockSize)
 617       EXPECT_TRUE(CheckData(i + 1, p, kBlockSize));
 618     TestFinished();
 619   }
 620
 621   // DeliverPartialResponse --------------------------------------
 622
 623   void DeliverPartialResponse() {
 624     // This test has several async steps.
 625     // 1. Write a small response to response storage.
 626     // 2. Use net::URLRequest to retrieve it a subset using a range request
 627     // 3. Verify we received what we expected to receive.
 628     PushNextTask(base::Bind(
 629        &AppCacheURLRequestJobTest::VerifyDeliverPartialResponse,
 630        base::Unretained(this)));
 631     PushNextTask(base::Bind(
 632        &AppCacheURLRequestJobTest::MakeRangeRequest, base::Unretained(this)));
 633     writer_.reset(service_->storage()->CreateResponseWriter(GURL(), 0));
 634     written_response_id_ = writer_->response_id();
 635     WriteBasicResponse();
 636     // Continues async
 637   }
 638
 639   void MakeRangeRequest() {
 640     AppCacheStorage* storage = service_->storage();
 641     request_.reset(empty_context_.CreateRequest(
 642         GURL("http://blah/"), url_request_delegate_.get()));
 643
 644     // Request a range, the 3 middle chars out of 'Hello'
 645     net::HttpRequestHeaders extra_headers;
 646     extra_headers.SetHeader("Range", "bytes= 1-3");
 647     request_->SetExtraRequestHeaders(extra_headers);
 648
 649     // Create job with orders to deliver an appcached entry.
 650     scoped_refptr<AppCacheURLRequestJob> job(new AppCacheURLRequestJob(
 651         request_.get(), empty_context_.network_delegate(), storage));
 652     job->DeliverAppCachedResponse(
 653         GURL(), 0, 111,
 654         AppCacheEntry(AppCacheEntry::EXPLICIT, written_response_id_),
 655         false);
 656     EXPECT_TRUE(job->is_delivering_appcache_response());
 657
 658     // Start the request.
 659     EXPECT_FALSE(job->has_been_started());
 660     mock_factory_job_ = job;
 661     request_->Start();
 662     EXPECT_FALSE(mock_factory_job_);
 663     EXPECT_TRUE(job->has_been_started());
 664     // Completion is async.
 665   }
 666
 667   void VerifyDeliverPartialResponse() {
 668     EXPECT_TRUE(request_->status().is_success());
 669     EXPECT_EQ(3, url_request_delegate_->amount_received_);
 670     EXPECT_EQ(0, memcmp(kHttpBasicBody + 1,
 671                         url_request_delegate_->received_data_->data(),
 672                         3));
 673     net::HttpResponseHeaders* headers =
 674         url_request_delegate_->received_info_.headers.get();
 675     EXPECT_EQ(206, headers->response_code());
 676     EXPECT_EQ(3, headers->GetContentLength());
 677     int64 range_start, range_end, object_size;
 678     EXPECT_TRUE(
 679         headers->GetContentRange(&range_start, &range_end, &object_size));
 680     EXPECT_EQ(1, range_start);
 681     EXPECT_EQ(3, range_end);
 682     EXPECT_EQ(5, object_size);
 683     TestFinished();
 684   }
 685
 686   // CancelRequest --------------------------------------
 687
 688   void CancelRequest() {
 689     // This test has several async steps.
 690     // 1. Write a large response to response storage.
 691     // 2. Use net::URLRequest to retrieve it.
 692     // 3. Cancel the request after data starts coming in.
 693
 694     PushNextTask(base::Bind(
 695        &AppCacheURLRequestJobTest::VerifyCancel, base::Unretained(this)));
 696     PushNextTask(base::Bind(
 697        &AppCacheURLRequestJobTest::RequestAppCachedResource,
 698        base::Unretained(this), true));
 699
 700     writer_.reset(service_->storage()->CreateResponseWriter(GURL(), 0));
 701     written_response_id_ = writer_->response_id();
 702     WriteLargeResponse();
 703
 704     url_request_delegate_->kill_after_amount_received_ = kBlockSize;
 705     url_request_delegate_->kill_with_io_pending_ = false;
 706     // Continues async
 707   }
 708
 709   void VerifyCancel() {
 710     EXPECT_EQ(net::URLRequestStatus::CANCELED,
 711               request_->status().status());
 712     TestFinished();
 713   }
 714
 715   // CancelRequestWithIOPending --------------------------------------
 716
 717   void CancelRequestWithIOPending() {
 718     // This test has several async steps.
 719     // 1. Write a large response to response storage.
 720     // 2. Use net::URLRequest to retrieve it.
 721     // 3. Cancel the request after data starts coming in.
 722
 723     PushNextTask(base::Bind(
 724        &AppCacheURLRequestJobTest::VerifyCancel, base::Unretained(this)));
 725     PushNextTask(base::Bind(
 726        &AppCacheURLRequestJobTest::RequestAppCachedResource,
 727        base::Unretained(this), true));
 728
 729     writer_.reset(service_->storage()->CreateResponseWriter(GURL(), 0));
 730     written_response_id_ = writer_->response_id();
 731     WriteLargeResponse();
 732
 733     url_request_delegate_->kill_after_amount_received_ = kBlockSize;
 734     url_request_delegate_->kill_with_io_pending_ = true;
 735     // Continues async
 736   }
 737
 738
 739   // Data members --------------------------------------------------------
 740
 741   scoped_ptr<base::WaitableEvent> test_finished_event_;
 742   scoped_ptr<MockStorageDelegate> storage_delegate_;
 743   scoped_ptr<MockAppCacheService> service_;
 744   std::stack<std::pair<base::Closure, bool> > task_stack_;
 745
 746   scoped_ptr<AppCacheResponseReader> reader_;
 747   scoped_refptr<HttpResponseInfoIOBuffer> read_info_buffer_;
 748   scoped_refptr<IOBuffer> read_buffer_;
 749   int expected_read_result_;
 750   int reader_deletion_count_down_;
 751
 752   int64 written_response_id_;
 753   scoped_ptr<AppCacheResponseWriter> writer_;
 754   scoped_refptr<HttpResponseInfoIOBuffer> write_info_buffer_;
 755   scoped_refptr<IOBuffer> write_buffer_;
 756   int expected_write_result_;
 757   int writer_deletion_count_down_;
 758
 759   net::URLRequest::ProtocolFactory* orig_http_factory_;
 760   net::URLRequestContext empty_context_;
 761   scoped_ptr<net::URLRequest> request_;
 762   scoped_ptr<MockURLRequestDelegate> url_request_delegate_;
 763
 764   static scoped_ptr<base::Thread> io_thread_;
 765   static AppCacheURLRequestJob* mock_factory_job_;
 766 };
 767
 768 // static
 769 scoped_ptr<base::Thread> AppCacheURLRequestJobTest::io_thread_;
 770 AppCacheURLRequestJob* AppCacheURLRequestJobTest::mock_factory_job_ = NULL;
 771
 772 TEST_F(AppCacheURLRequestJobTest, Basic) {
 773   RunTestOnIOThread(&AppCacheURLRequestJobTest::Basic);
 774 }
 775
 776 TEST_F(AppCacheURLRequestJobTest, DeliveryOrders) {
 777   RunTestOnIOThread(&AppCacheURLRequestJobTest::DeliveryOrders);
 778 }
 779
 780 TEST_F(AppCacheURLRequestJobTest, DeliverNetworkResponse) {
 781   RunTestOnIOThread(&AppCacheURLRequestJobTest::DeliverNetworkResponse);
 782 }
 783
 784 TEST_F(AppCacheURLRequestJobTest, DeliverErrorResponse) {
 785   RunTestOnIOThread(&AppCacheURLRequestJobTest::DeliverErrorResponse);
 786 }
 787
 788 TEST_F(AppCacheURLRequestJobTest, DeliverSmallAppCachedResponse) {
 789   RunTestOnIOThread(&AppCacheURLRequestJobTest::DeliverSmallAppCachedResponse);
 790 }
 791
 792 TEST_F(AppCacheURLRequestJobTest, DeliverLargeAppCachedResponse) {
 793   RunTestOnIOThread(&AppCacheURLRequestJobTest::DeliverLargeAppCachedResponse);
 794 }
 795
 796 TEST_F(AppCacheURLRequestJobTest, DeliverPartialResponse) {
 797   RunTestOnIOThread(&AppCacheURLRequestJobTest::DeliverPartialResponse);
 798 }
 799
 800 TEST_F(AppCacheURLRequestJobTest, CancelRequest) {
 801   RunTestOnIOThread(&AppCacheURLRequestJobTest::CancelRequest);
 802 }
 803
 804 TEST_F(AppCacheURLRequestJobTest, CancelRequestWithIOPending) {
 805   RunTestOnIOThread(&AppCacheURLRequestJobTest::CancelRequestWithIOPending);
 806 }
 807
 808 }  // namespace appcache