content/browser/download/download_item_impl_unittest.cc

   1 // Copyright (c) 2012 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 "base/callback.h"
   6 #include "base/command_line.h"
   7 #include "base/message_loop/message_loop.h"
   8 #include "base/stl_util.h"
   9 #include "base/threading/thread.h"
  10 #include "content/browser/byte_stream.h"
  11 #include "content/browser/download/download_create_info.h"
  12 #include "content/browser/download/download_file_factory.h"
  13 #include "content/browser/download/download_item_impl.h"
  14 #include "content/browser/download/download_item_impl_delegate.h"
  15 #include "content/browser/download/download_request_handle.h"
  16 #include "content/browser/download/mock_download_file.h"
  17 #include "content/public/browser/download_destination_observer.h"
  18 #include "content/public/browser/download_interrupt_reasons.h"
  19 #include "content/public/browser/download_url_parameters.h"
  20 #include "content/public/common/content_switches.h"
  21 #include "content/public/test/mock_download_item.h"
  22 #include "content/public/test/test_browser_thread.h"
  23 #include "testing/gmock/include/gmock/gmock.h"
  24 #include "testing/gtest/include/gtest/gtest.h"
  25
  26 using ::testing::_;
  27 using ::testing::NiceMock;
  28 using ::testing::Property;
  29 using ::testing::Return;
  30 using ::testing::SaveArg;
  31 using ::testing::StrictMock;
  32
  33 const int kDownloadChunkSize = 1000;
  34 const int kDownloadSpeed = 1000;
  35 const base::FilePath::CharType kDummyPath[] = FILE_PATH_LITERAL("/testpath");
  36
  37 namespace content {
  38
  39 namespace {
  40
  41 class MockDelegate : public DownloadItemImplDelegate {
  42  public:
  43   MockDelegate() : DownloadItemImplDelegate() {
  44     SetDefaultExpectations();
  45   }
  46
  47   MOCK_METHOD2(DetermineDownloadTarget, void(
  48       DownloadItemImpl*, const DownloadTargetCallback&));
  49   MOCK_METHOD2(ShouldCompleteDownload,
  50                bool(DownloadItemImpl*, const base::Closure&));
  51   MOCK_METHOD2(ShouldOpenDownload,
  52                bool(DownloadItemImpl*, const ShouldOpenDownloadCallback&));
  53   MOCK_METHOD1(ShouldOpenFileBasedOnExtension, bool(const base::FilePath&));
  54   MOCK_METHOD1(CheckForFileRemoval, void(DownloadItemImpl*));
  55
  56   virtual void ResumeInterruptedDownload(
  57       scoped_ptr<DownloadUrlParameters> params, uint32 id) OVERRIDE {
  58     MockResumeInterruptedDownload(params.get(), id);
  59   }
  60   MOCK_METHOD2(MockResumeInterruptedDownload,
  61                void(DownloadUrlParameters* params, uint32 id));
  62
  63   MOCK_CONST_METHOD0(GetBrowserContext, BrowserContext*());
  64   MOCK_METHOD1(UpdatePersistence, void(DownloadItemImpl*));
  65   MOCK_METHOD1(DownloadOpened, void(DownloadItemImpl*));
  66   MOCK_METHOD1(DownloadRemoved, void(DownloadItemImpl*));
  67   MOCK_CONST_METHOD1(AssertStateConsistent, void(DownloadItemImpl*));
  68
  69   void VerifyAndClearExpectations() {
  70     ::testing::Mock::VerifyAndClearExpectations(this);
  71     SetDefaultExpectations();
  72   }
  73
  74  private:
  75   void SetDefaultExpectations() {
  76     EXPECT_CALL(*this, AssertStateConsistent(_))
  77         .WillRepeatedly(Return());
  78     EXPECT_CALL(*this, ShouldOpenFileBasedOnExtension(_))
  79         .WillRepeatedly(Return(false));
  80     EXPECT_CALL(*this, ShouldOpenDownload(_, _))
  81         .WillRepeatedly(Return(true));
  82   }
  83 };
  84
  85 class MockRequestHandle : public DownloadRequestHandleInterface {
  86  public:
  87   MOCK_CONST_METHOD0(GetWebContents, WebContents*());
  88   MOCK_CONST_METHOD0(GetDownloadManager, DownloadManager*());
  89   MOCK_CONST_METHOD0(PauseRequest, void());
  90   MOCK_CONST_METHOD0(ResumeRequest, void());
  91   MOCK_CONST_METHOD0(CancelRequest, void());
  92   MOCK_CONST_METHOD0(DebugString, std::string());
  93 };
  94
  95 // Schedules a task to invoke the RenameCompletionCallback with |new_path| on
  96 // the UI thread. Should only be used as the action for
  97 // MockDownloadFile::Rename as follows:
  98 //   EXPECT_CALL(download_file, Rename*(_,_))
  99 //       .WillOnce(ScheduleRenameCallback(DOWNLOAD_INTERRUPT_REASON_NONE,
 100 //                                        new_path));
 101 ACTION_P2(ScheduleRenameCallback, interrupt_reason, new_path) {
 102   BrowserThread::PostTask(
 103       BrowserThread::UI, FROM_HERE,
 104       base::Bind(arg1, interrupt_reason, new_path));
 105 }
 106
 107 }  // namespace
 108
 109 class DownloadItemTest : public testing::Test {
 110  public:
 111   class MockObserver : public DownloadItem::Observer {
 112    public:
 113     explicit MockObserver(DownloadItem* item)
 114       : item_(item),
 115         last_state_(item->GetState()),
 116         removed_(false),
 117         destroyed_(false),
 118         updated_(false),
 119         interrupt_count_(0),
 120         resume_count_(0) {
 121       item_->AddObserver(this);
 122     }
 123
 124     virtual ~MockObserver() {
 125       if (item_) item_->RemoveObserver(this);
 126     }
 127
 128     virtual void OnDownloadRemoved(DownloadItem* download) OVERRIDE {
 129       DVLOG(20) << " " << __FUNCTION__
 130                 << " download = " << download->DebugString(false);
 131       removed_ = true;
 132     }
 133
 134     virtual void OnDownloadUpdated(DownloadItem* download) OVERRIDE {
 135       DVLOG(20) << " " << __FUNCTION__
 136                 << " download = " << download->DebugString(false);
 137       updated_ = true;
 138       DownloadItem::DownloadState new_state = download->GetState();
 139       if (last_state_ == DownloadItem::IN_PROGRESS &&
 140           new_state == DownloadItem::INTERRUPTED) {
 141         interrupt_count_++;
 142       }
 143       if (last_state_ == DownloadItem::INTERRUPTED &&
 144           new_state == DownloadItem::IN_PROGRESS) {
 145         resume_count_++;
 146       }
 147       last_state_ = new_state;
 148     }
 149
 150     virtual void OnDownloadOpened(DownloadItem* download) OVERRIDE {
 151       DVLOG(20) << " " << __FUNCTION__
 152                 << " download = " << download->DebugString(false);
 153     }
 154
 155     virtual void OnDownloadDestroyed(DownloadItem* download) OVERRIDE {
 156       DVLOG(20) << " " << __FUNCTION__
 157                 << " download = " << download->DebugString(false);
 158       destroyed_ = true;
 159       item_->RemoveObserver(this);
 160       item_ = NULL;
 161     }
 162
 163     bool CheckRemoved() {
 164       return removed_;
 165     }
 166
 167     bool CheckDestroyed() {
 168       return destroyed_;
 169     }
 170
 171     bool CheckUpdated() {
 172       bool was_updated = updated_;
 173       updated_ = false;
 174       return was_updated;
 175     }
 176
 177     int GetInterruptCount() {
 178       return interrupt_count_;
 179     }
 180
 181     int GetResumeCount() {
 182       return resume_count_;
 183     }
 184
 185    private:
 186     DownloadItem* item_;
 187     DownloadItem::DownloadState last_state_;
 188     bool removed_;
 189     bool destroyed_;
 190     bool updated_;
 191     int interrupt_count_;
 192     int resume_count_;
 193   };
 194
 195   DownloadItemTest()
 196       : ui_thread_(BrowserThread::UI, &loop_),
 197         file_thread_(BrowserThread::FILE, &loop_),
 198         delegate_() {
 199   }
 200
 201   ~DownloadItemTest() {
 202   }
 203
 204   virtual void SetUp() {
 205   }
 206
 207   virtual void TearDown() {
 208     ui_thread_.DeprecatedGetThreadObject()->message_loop()->RunUntilIdle();
 209     STLDeleteElements(&allocated_downloads_);
 210     allocated_downloads_.clear();
 211   }
 212
 213   // This class keeps ownership of the created download item; it will
 214   // be torn down at the end of the test unless DestroyDownloadItem is
 215   // called.
 216   DownloadItemImpl* CreateDownloadItem() {
 217     // Normally, the download system takes ownership of info, and is
 218     // responsible for deleting it.  In these unit tests, however, we
 219     // don't call the function that deletes it, so we do so ourselves.
 220     scoped_ptr<DownloadCreateInfo> info_;
 221
 222     info_.reset(new DownloadCreateInfo());
 223     static uint32 next_id = DownloadItem::kInvalidId + 1;
 224     info_->save_info = scoped_ptr<DownloadSaveInfo>(new DownloadSaveInfo());
 225     info_->save_info->prompt_for_save_location = false;
 226     info_->url_chain.push_back(GURL());
 227     info_->etag = "SomethingToSatisfyResumption";
 228
 229     DownloadItemImpl* download =
 230         new DownloadItemImpl(
 231             &delegate_, next_id++, *(info_.get()), net::BoundNetLog());
 232     allocated_downloads_.insert(download);
 233     return download;
 234   }
 235
 236   // Add DownloadFile to DownloadItem
 237   MockDownloadFile* AddDownloadFileToDownloadItem(
 238       DownloadItemImpl* item,
 239       DownloadItemImplDelegate::DownloadTargetCallback *callback) {
 240     MockDownloadFile* mock_download_file(new StrictMock<MockDownloadFile>);
 241     scoped_ptr<DownloadFile> download_file(mock_download_file);
 242     EXPECT_CALL(*mock_download_file, Initialize(_));
 243     if (callback) {
 244       // Save the callback.
 245       EXPECT_CALL(*mock_delegate(), DetermineDownloadTarget(item, _))
 246           .WillOnce(SaveArg<1>(callback));
 247     } else {
 248       // Drop it on the floor.
 249       EXPECT_CALL(*mock_delegate(), DetermineDownloadTarget(item, _));
 250     }
 251
 252     scoped_ptr<DownloadRequestHandleInterface> request_handle(
 253         new NiceMock<MockRequestHandle>);
 254     item->Start(download_file.Pass(), request_handle.Pass());
 255     loop_.RunUntilIdle();
 256
 257     // So that we don't have a function writing to a stack variable
 258     // lying around if the above failed.
 259     mock_delegate()->VerifyAndClearExpectations();
 260     EXPECT_CALL(*mock_delegate(), AssertStateConsistent(_))
 261         .WillRepeatedly(Return());
 262     EXPECT_CALL(*mock_delegate(), ShouldOpenFileBasedOnExtension(_))
 263         .WillRepeatedly(Return(false));
 264     EXPECT_CALL(*mock_delegate(), ShouldOpenDownload(_, _))
 265         .WillRepeatedly(Return(true));
 266
 267     return mock_download_file;
 268   }
 269
 270   // Perform the intermediate rename for |item|. The target path for the
 271   // download will be set to kDummyPath. Returns the MockDownloadFile* that was
 272   // added to the DownloadItem.
 273   MockDownloadFile* DoIntermediateRename(DownloadItemImpl* item,
 274                                          DownloadDangerType danger_type) {
 275     EXPECT_EQ(DownloadItem::IN_PROGRESS, item->GetState());
 276     EXPECT_TRUE(item->GetTargetFilePath().empty());
 277     DownloadItemImplDelegate::DownloadTargetCallback callback;
 278     MockDownloadFile* download_file =
 279         AddDownloadFileToDownloadItem(item, &callback);
 280     base::FilePath target_path(kDummyPath);
 281     base::FilePath intermediate_path(
 282         target_path.InsertBeforeExtensionASCII("x"));
 283     EXPECT_CALL(*download_file, RenameAndUniquify(intermediate_path, _))
 284         .WillOnce(ScheduleRenameCallback(DOWNLOAD_INTERRUPT_REASON_NONE,
 285                                          intermediate_path));
 286     callback.Run(target_path, DownloadItem::TARGET_DISPOSITION_OVERWRITE,
 287                  danger_type, intermediate_path);
 288     RunAllPendingInMessageLoops();
 289     return download_file;
 290   }
 291
 292   // Cleanup a download item (specifically get rid of the DownloadFile on it).
 293   // The item must be in the expected state.
 294   void CleanupItem(DownloadItemImpl* item,
 295                    MockDownloadFile* download_file,
 296                    DownloadItem::DownloadState expected_state) {
 297     EXPECT_EQ(expected_state, item->GetState());
 298
 299     if (expected_state == DownloadItem::IN_PROGRESS) {
 300       EXPECT_CALL(*download_file, Cancel());
 301       item->Cancel(true);
 302       loop_.RunUntilIdle();
 303     }
 304   }
 305
 306   // Destroy a previously created download item.
 307   void DestroyDownloadItem(DownloadItem* item) {
 308     allocated_downloads_.erase(item);
 309     delete item;
 310   }
 311
 312   void RunAllPendingInMessageLoops() {
 313     loop_.RunUntilIdle();
 314   }
 315
 316   MockDelegate* mock_delegate() {
 317     return &delegate_;
 318   }
 319
 320   void OnDownloadFileAcquired(base::FilePath* return_path,
 321                               const base::FilePath& path) {
 322     *return_path = path;
 323   }
 324
 325  private:
 326   base::MessageLoopForUI loop_;
 327   TestBrowserThread ui_thread_;    // UI thread
 328   TestBrowserThread file_thread_;  // FILE thread
 329   StrictMock<MockDelegate> delegate_;
 330   std::set<DownloadItem*> allocated_downloads_;
 331 };
 332
 333 // Tests to ensure calls that change a DownloadItem generate an update to
 334 // observers.
 335 // State changing functions not tested:
 336 //  void OpenDownload();
 337 //  void ShowDownloadInShell();
 338 //  void CompleteDelayedDownload();
 339 //  set_* mutators
 340
 341 TEST_F(DownloadItemTest, NotificationAfterUpdate) {
 342   DownloadItemImpl* item = CreateDownloadItem();
 343   MockObserver observer(item);
 344
 345   item->DestinationUpdate(kDownloadChunkSize, kDownloadSpeed, std::string());
 346   ASSERT_TRUE(observer.CheckUpdated());
 347   EXPECT_EQ(kDownloadSpeed, item->CurrentSpeed());
 348 }
 349
 350 TEST_F(DownloadItemTest, NotificationAfterCancel) {
 351   DownloadItemImpl* user_cancel = CreateDownloadItem();
 352   MockDownloadFile* download_file =
 353       AddDownloadFileToDownloadItem(user_cancel, NULL);
 354   EXPECT_CALL(*download_file, Cancel());
 355   MockObserver observer1(user_cancel);
 356
 357   user_cancel->Cancel(true);
 358   ASSERT_TRUE(observer1.CheckUpdated());
 359
 360   DownloadItemImpl* system_cancel = CreateDownloadItem();
 361   download_file = AddDownloadFileToDownloadItem(system_cancel, NULL);
 362   EXPECT_CALL(*download_file, Cancel());
 363   MockObserver observer2(system_cancel);
 364
 365   system_cancel->Cancel(false);
 366   ASSERT_TRUE(observer2.CheckUpdated());
 367 }
 368
 369 TEST_F(DownloadItemTest, NotificationAfterComplete) {
 370   DownloadItemImpl* item = CreateDownloadItem();
 371   MockObserver observer(item);
 372
 373   item->OnAllDataSaved(DownloadItem::kEmptyFileHash);
 374   ASSERT_TRUE(observer.CheckUpdated());
 375
 376   item->MarkAsComplete();
 377   ASSERT_TRUE(observer.CheckUpdated());
 378 }
 379
 380 TEST_F(DownloadItemTest, NotificationAfterDownloadedFileRemoved) {
 381   DownloadItemImpl* item = CreateDownloadItem();
 382   MockObserver observer(item);
 383
 384   item->OnDownloadedFileRemoved();
 385   ASSERT_TRUE(observer.CheckUpdated());
 386 }
 387
 388 TEST_F(DownloadItemTest, NotificationAfterInterrupted) {
 389   DownloadItemImpl* item = CreateDownloadItem();
 390   MockDownloadFile* download_file =
 391       DoIntermediateRename(item, DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS);
 392   EXPECT_CALL(*download_file, Cancel());
 393   MockObserver observer(item);
 394
 395   EXPECT_CALL(*mock_delegate(), MockResumeInterruptedDownload(_,_))
 396       .Times(0);
 397
 398   item->DestinationObserverAsWeakPtr()->DestinationError(
 399       DOWNLOAD_INTERRUPT_REASON_FILE_FAILED);
 400   ASSERT_TRUE(observer.CheckUpdated());
 401 }
 402
 403 TEST_F(DownloadItemTest, NotificationAfterDestroyed) {
 404   DownloadItemImpl* item = CreateDownloadItem();
 405   MockObserver observer(item);
 406
 407   DestroyDownloadItem(item);
 408   ASSERT_TRUE(observer.CheckDestroyed());
 409 }
 410
 411 TEST_F(DownloadItemTest, ContinueAfterInterrupted) {
 412   CommandLine::ForCurrentProcess()->AppendSwitch(
 413       switches::kEnableDownloadResumption);
 414
 415   DownloadItemImpl* item = CreateDownloadItem();
 416   MockObserver observer(item);
 417   DownloadItemImplDelegate::DownloadTargetCallback callback;
 418   MockDownloadFile* download_file =
 419       DoIntermediateRename(item, DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS);
 420
 421   // Interrupt the download, using a continuable interrupt.
 422   EXPECT_CALL(*download_file, FullPath())
 423       .WillOnce(Return(base::FilePath()));
 424   EXPECT_CALL(*download_file, Detach());
 425   item->DestinationObserverAsWeakPtr()->DestinationError(
 426       DOWNLOAD_INTERRUPT_REASON_FILE_TRANSIENT_ERROR);
 427   ASSERT_TRUE(observer.CheckUpdated());
 428   // Should attempt to auto-resume.  Because we don't have a mock WebContents,
 429   // ResumeInterruptedDownload() will abort early, with another interrupt,
 430   // which will be ignored.
 431   ASSERT_EQ(1, observer.GetInterruptCount());
 432   ASSERT_EQ(0, observer.GetResumeCount());
 433   RunAllPendingInMessageLoops();
 434
 435   CleanupItem(item, download_file, DownloadItem::INTERRUPTED);
 436 }
 437
 438 // Same as above, but with a non-continuable interrupt.
 439 TEST_F(DownloadItemTest, RestartAfterInterrupted) {
 440   CommandLine::ForCurrentProcess()->AppendSwitch(
 441       switches::kEnableDownloadResumption);
 442
 443   DownloadItemImpl* item = CreateDownloadItem();
 444   MockObserver observer(item);
 445   DownloadItemImplDelegate::DownloadTargetCallback callback;
 446   MockDownloadFile* download_file =
 447       DoIntermediateRename(item, DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS);
 448
 449   // Interrupt the download, using a restartable interrupt.
 450   EXPECT_CALL(*download_file, Cancel());
 451   item->DestinationObserverAsWeakPtr()->DestinationError(
 452       DOWNLOAD_INTERRUPT_REASON_FILE_FAILED);
 453   ASSERT_TRUE(observer.CheckUpdated());
 454   // Should not try to auto-resume.
 455   ASSERT_EQ(1, observer.GetInterruptCount());
 456   ASSERT_EQ(0, observer.GetResumeCount());
 457   RunAllPendingInMessageLoops();
 458
 459   CleanupItem(item, download_file, DownloadItem::INTERRUPTED);
 460 }
 461
 462 TEST_F(DownloadItemTest, LimitRestartsAfterInterrupted) {
 463   CommandLine::ForCurrentProcess()->AppendSwitch(
 464       switches::kEnableDownloadResumption);
 465
 466   DownloadItemImpl* item = CreateDownloadItem();
 467   base::WeakPtr<DownloadDestinationObserver> as_observer(
 468       item->DestinationObserverAsWeakPtr());
 469   MockObserver observer(item);
 470   MockDownloadFile* mock_download_file(NULL);
 471   scoped_ptr<DownloadFile> download_file;
 472   MockRequestHandle* mock_request_handle(NULL);
 473   scoped_ptr<DownloadRequestHandleInterface> request_handle;
 474   DownloadItemImplDelegate::DownloadTargetCallback callback;
 475
 476   EXPECT_CALL(*mock_delegate(), DetermineDownloadTarget(item, _))
 477       .WillRepeatedly(SaveArg<1>(&callback));
 478   for (int i = 0; i < (DownloadItemImpl::kMaxAutoResumeAttempts + 1); ++i) {
 479     DVLOG(20) << "Loop iteration " << i;
 480
 481     mock_download_file = new NiceMock<MockDownloadFile>;
 482     download_file.reset(mock_download_file);
 483     mock_request_handle = new NiceMock<MockRequestHandle>;
 484     request_handle.reset(mock_request_handle);
 485
 486     ON_CALL(*mock_download_file, FullPath())
 487         .WillByDefault(Return(base::FilePath()));
 488
 489     // It's too complicated to set up a WebContents instance that would cause
 490     // the MockDownloadItemDelegate's ResumeInterruptedDownload() function
 491     // to be callled, so we simply verify that GetWebContents() is called.
 492     if (i < (DownloadItemImpl::kMaxAutoResumeAttempts - 1)) {
 493       EXPECT_CALL(*mock_request_handle, GetWebContents())
 494           .WillRepeatedly(Return(static_cast<WebContents*>(NULL)));
 495     }
 496
 497     // Copied key parts of DoIntermediateRename & AddDownloadFileToDownloadItem
 498     // to allow for holding onto the request handle.
 499     item->Start(download_file.Pass(), request_handle.Pass());
 500     RunAllPendingInMessageLoops();
 501     if (i == 0) {
 502       // Target determination is only done the first time through.
 503       base::FilePath target_path(kDummyPath);
 504       base::FilePath intermediate_path(
 505           target_path.InsertBeforeExtensionASCII("x"));
 506       EXPECT_CALL(*mock_download_file, RenameAndUniquify(intermediate_path, _))
 507           .WillOnce(ScheduleRenameCallback(DOWNLOAD_INTERRUPT_REASON_NONE,
 508                                            intermediate_path));
 509       callback.Run(target_path, DownloadItem::TARGET_DISPOSITION_OVERWRITE,
 510                    DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS, intermediate_path);
 511       RunAllPendingInMessageLoops();
 512     }
 513     ASSERT_EQ(i, observer.GetResumeCount());
 514
 515     // Use a continuable interrupt.
 516     item->DestinationObserverAsWeakPtr()->DestinationError(
 517         DOWNLOAD_INTERRUPT_REASON_FILE_TRANSIENT_ERROR);
 518
 519     ASSERT_EQ(i + 1, observer.GetInterruptCount());
 520     ::testing::Mock::VerifyAndClearExpectations(mock_download_file);
 521   }
 522
 523   CleanupItem(item, mock_download_file, DownloadItem::INTERRUPTED);
 524 }
 525
 526 TEST_F(DownloadItemTest, NotificationAfterRemove) {
 527   DownloadItemImpl* item = CreateDownloadItem();
 528   MockDownloadFile* download_file = AddDownloadFileToDownloadItem(item, NULL);
 529   EXPECT_CALL(*download_file, Cancel());
 530   EXPECT_CALL(*mock_delegate(), DownloadRemoved(_));
 531   MockObserver observer(item);
 532
 533   item->Remove();
 534   ASSERT_TRUE(observer.CheckUpdated());
 535   ASSERT_TRUE(observer.CheckRemoved());
 536 }
 537
 538 TEST_F(DownloadItemTest, NotificationAfterOnContentCheckCompleted) {
 539   // Setting to NOT_DANGEROUS does not trigger a notification.
 540   DownloadItemImpl* safe_item = CreateDownloadItem();
 541   MockObserver safe_observer(safe_item);
 542
 543   safe_item->OnAllDataSaved(std::string());
 544   EXPECT_TRUE(safe_observer.CheckUpdated());
 545   safe_item->OnContentCheckCompleted(DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS);
 546   EXPECT_TRUE(safe_observer.CheckUpdated());
 547
 548   // Setting to unsafe url or unsafe file should trigger a notification.
 549   DownloadItemImpl* unsafeurl_item =
 550       CreateDownloadItem();
 551   MockObserver unsafeurl_observer(unsafeurl_item);
 552
 553   unsafeurl_item->OnAllDataSaved(std::string());
 554   EXPECT_TRUE(unsafeurl_observer.CheckUpdated());
 555   unsafeurl_item->OnContentCheckCompleted(DOWNLOAD_DANGER_TYPE_DANGEROUS_URL);
 556   EXPECT_TRUE(unsafeurl_observer.CheckUpdated());
 557
 558   unsafeurl_item->ValidateDangerousDownload();
 559   EXPECT_TRUE(unsafeurl_observer.CheckUpdated());
 560
 561   DownloadItemImpl* unsafefile_item =
 562       CreateDownloadItem();
 563   MockObserver unsafefile_observer(unsafefile_item);
 564
 565   unsafefile_item->OnAllDataSaved(std::string());
 566   EXPECT_TRUE(unsafefile_observer.CheckUpdated());
 567   unsafefile_item->OnContentCheckCompleted(DOWNLOAD_DANGER_TYPE_DANGEROUS_FILE);
 568   EXPECT_TRUE(unsafefile_observer.CheckUpdated());
 569
 570   unsafefile_item->ValidateDangerousDownload();
 571   EXPECT_TRUE(unsafefile_observer.CheckUpdated());
 572 }
 573
 574 // DownloadItemImpl::OnDownloadTargetDetermined will schedule a task to run
 575 // DownloadFile::Rename(). Once the rename
 576 // completes, DownloadItemImpl receives a notification with the new file
 577 // name. Check that observers are updated when the new filename is available and
 578 // not before.
 579 TEST_F(DownloadItemTest, NotificationAfterOnDownloadTargetDetermined) {
 580   DownloadItemImpl* item = CreateDownloadItem();
 581   DownloadItemImplDelegate::DownloadTargetCallback callback;
 582   MockDownloadFile* download_file =
 583       AddDownloadFileToDownloadItem(item, &callback);
 584   MockObserver observer(item);
 585   base::FilePath target_path(kDummyPath);
 586   base::FilePath intermediate_path(target_path.InsertBeforeExtensionASCII("x"));
 587   base::FilePath new_intermediate_path(
 588       target_path.InsertBeforeExtensionASCII("y"));
 589   EXPECT_CALL(*download_file, RenameAndUniquify(intermediate_path, _))
 590       .WillOnce(ScheduleRenameCallback(DOWNLOAD_INTERRUPT_REASON_NONE,
 591                                        new_intermediate_path));
 592
 593   // Currently, a notification would be generated if the danger type is anything
 594   // other than NOT_DANGEROUS.
 595   callback.Run(target_path, DownloadItem::TARGET_DISPOSITION_OVERWRITE,
 596                DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS, intermediate_path);
 597   EXPECT_FALSE(observer.CheckUpdated());
 598   RunAllPendingInMessageLoops();
 599   EXPECT_TRUE(observer.CheckUpdated());
 600   EXPECT_EQ(new_intermediate_path, item->GetFullPath());
 601
 602   CleanupItem(item, download_file, DownloadItem::IN_PROGRESS);
 603 }
 604
 605 TEST_F(DownloadItemTest, NotificationAfterTogglePause) {
 606   DownloadItemImpl* item = CreateDownloadItem();
 607   MockObserver observer(item);
 608   MockDownloadFile* mock_download_file(new MockDownloadFile);
 609   scoped_ptr<DownloadFile> download_file(mock_download_file);
 610   scoped_ptr<DownloadRequestHandleInterface> request_handle(
 611       new NiceMock<MockRequestHandle>);
 612
 613   EXPECT_CALL(*mock_download_file, Initialize(_));
 614   EXPECT_CALL(*mock_delegate(), DetermineDownloadTarget(_, _));
 615   item->Start(download_file.Pass(), request_handle.Pass());
 616
 617   item->Pause();
 618   ASSERT_TRUE(observer.CheckUpdated());
 619
 620   ASSERT_TRUE(item->IsPaused());
 621
 622   item->Resume();
 623   ASSERT_TRUE(observer.CheckUpdated());
 624
 625   RunAllPendingInMessageLoops();
 626
 627   CleanupItem(item, mock_download_file, DownloadItem::IN_PROGRESS);
 628 }
 629
 630 TEST_F(DownloadItemTest, DisplayName) {
 631   DownloadItemImpl* item = CreateDownloadItem();
 632   DownloadItemImplDelegate::DownloadTargetCallback callback;
 633   MockDownloadFile* download_file =
 634       AddDownloadFileToDownloadItem(item, &callback);
 635   base::FilePath target_path(base::FilePath(kDummyPath).AppendASCII("foo.bar"));
 636   base::FilePath intermediate_path(target_path.InsertBeforeExtensionASCII("x"));
 637   EXPECT_EQ(FILE_PATH_LITERAL(""),
 638             item->GetFileNameToReportUser().value());
 639   EXPECT_CALL(*download_file, RenameAndUniquify(_, _))
 640       .WillOnce(ScheduleRenameCallback(DOWNLOAD_INTERRUPT_REASON_NONE,
 641                                        intermediate_path));
 642   callback.Run(target_path, DownloadItem::TARGET_DISPOSITION_OVERWRITE,
 643                DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS, intermediate_path);
 644   RunAllPendingInMessageLoops();
 645   EXPECT_EQ(FILE_PATH_LITERAL("foo.bar"),
 646             item->GetFileNameToReportUser().value());
 647   item->SetDisplayName(base::FilePath(FILE_PATH_LITERAL("new.name")));
 648   EXPECT_EQ(FILE_PATH_LITERAL("new.name"),
 649             item->GetFileNameToReportUser().value());
 650   CleanupItem(item, download_file, DownloadItem::IN_PROGRESS);
 651 }
 652
 653 // Test to make sure that Start method calls DF initialize properly.
 654 TEST_F(DownloadItemTest, Start) {
 655   MockDownloadFile* mock_download_file(new MockDownloadFile);
 656   scoped_ptr<DownloadFile> download_file(mock_download_file);
 657   DownloadItemImpl* item = CreateDownloadItem();
 658   EXPECT_CALL(*mock_download_file, Initialize(_));
 659   scoped_ptr<DownloadRequestHandleInterface> request_handle(
 660       new NiceMock<MockRequestHandle>);
 661   EXPECT_CALL(*mock_delegate(), DetermineDownloadTarget(item, _));
 662   item->Start(download_file.Pass(), request_handle.Pass());
 663   RunAllPendingInMessageLoops();
 664
 665   CleanupItem(item, mock_download_file, DownloadItem::IN_PROGRESS);
 666 }
 667
 668 // Test that the delegate is invoked after the download file is renamed.
 669 TEST_F(DownloadItemTest, CallbackAfterRename) {
 670   DownloadItemImpl* item = CreateDownloadItem();
 671   DownloadItemImplDelegate::DownloadTargetCallback callback;
 672   MockDownloadFile* download_file =
 673       AddDownloadFileToDownloadItem(item, &callback);
 674   base::FilePath final_path(base::FilePath(kDummyPath).AppendASCII("foo.bar"));
 675   base::FilePath intermediate_path(final_path.InsertBeforeExtensionASCII("x"));
 676   base::FilePath new_intermediate_path(
 677       final_path.InsertBeforeExtensionASCII("y"));
 678   EXPECT_CALL(*download_file, RenameAndUniquify(intermediate_path, _))
 679       .WillOnce(ScheduleRenameCallback(DOWNLOAD_INTERRUPT_REASON_NONE,
 680                                        new_intermediate_path));
 681
 682   callback.Run(final_path, DownloadItem::TARGET_DISPOSITION_OVERWRITE,
 683                DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS, intermediate_path);
 684   RunAllPendingInMessageLoops();
 685   // All the callbacks should have happened by now.
 686   ::testing::Mock::VerifyAndClearExpectations(download_file);
 687   mock_delegate()->VerifyAndClearExpectations();
 688
 689   EXPECT_CALL(*mock_delegate(), ShouldCompleteDownload(item, _))
 690       .WillOnce(Return(true));
 691   EXPECT_CALL(*download_file, RenameAndAnnotate(final_path, _))
 692       .WillOnce(ScheduleRenameCallback(DOWNLOAD_INTERRUPT_REASON_NONE,
 693                                        final_path));
 694   EXPECT_CALL(*download_file, FullPath())
 695       .WillOnce(Return(base::FilePath()));
 696   EXPECT_CALL(*download_file, Detach());
 697   item->DestinationObserverAsWeakPtr()->DestinationCompleted(std::string());
 698   RunAllPendingInMessageLoops();
 699   ::testing::Mock::VerifyAndClearExpectations(download_file);
 700   mock_delegate()->VerifyAndClearExpectations();
 701 }
 702
 703 // Test that the delegate is invoked after the download file is renamed and the
 704 // download item is in an interrupted state.
 705 TEST_F(DownloadItemTest, CallbackAfterInterruptedRename) {
 706   DownloadItemImpl* item = CreateDownloadItem();
 707   DownloadItemImplDelegate::DownloadTargetCallback callback;
 708   MockDownloadFile* download_file =
 709       AddDownloadFileToDownloadItem(item, &callback);
 710   base::FilePath final_path(base::FilePath(kDummyPath).AppendASCII("foo.bar"));
 711   base::FilePath intermediate_path(final_path.InsertBeforeExtensionASCII("x"));
 712   base::FilePath new_intermediate_path(
 713       final_path.InsertBeforeExtensionASCII("y"));
 714   EXPECT_CALL(*download_file, RenameAndUniquify(intermediate_path, _))
 715       .WillOnce(ScheduleRenameCallback(DOWNLOAD_INTERRUPT_REASON_FILE_FAILED,
 716                                        new_intermediate_path));
 717   EXPECT_CALL(*download_file, Cancel())
 718       .Times(1);
 719
 720   callback.Run(final_path, DownloadItem::TARGET_DISPOSITION_OVERWRITE,
 721                DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS, intermediate_path);
 722   RunAllPendingInMessageLoops();
 723   // All the callbacks should have happened by now.
 724   ::testing::Mock::VerifyAndClearExpectations(download_file);
 725   mock_delegate()->VerifyAndClearExpectations();
 726 }
 727
 728 TEST_F(DownloadItemTest, Interrupted) {
 729   DownloadItemImpl* item = CreateDownloadItem();
 730   MockDownloadFile* download_file =
 731       DoIntermediateRename(item, DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS);
 732
 733   const DownloadInterruptReason reason(
 734       DOWNLOAD_INTERRUPT_REASON_FILE_ACCESS_DENIED);
 735
 736   // Confirm interrupt sets state properly.
 737   EXPECT_CALL(*download_file, Cancel());
 738   item->DestinationObserverAsWeakPtr()->DestinationError(reason);
 739   RunAllPendingInMessageLoops();
 740   EXPECT_EQ(DownloadItem::INTERRUPTED, item->GetState());
 741   EXPECT_EQ(reason, item->GetLastReason());
 742
 743   // Cancel should kill it.
 744   item->Cancel(true);
 745   EXPECT_EQ(DownloadItem::CANCELLED, item->GetState());
 746   EXPECT_EQ(DOWNLOAD_INTERRUPT_REASON_USER_CANCELED, item->GetLastReason());
 747 }
 748
 749 // Destination errors that occur before the intermediate rename shouldn't cause
 750 // the download to be marked as interrupted until after the intermediate rename.
 751 TEST_F(DownloadItemTest, InterruptedBeforeIntermediateRename_Restart) {
 752   DownloadItemImpl* item = CreateDownloadItem();
 753   DownloadItemImplDelegate::DownloadTargetCallback callback;
 754   MockDownloadFile* download_file =
 755       AddDownloadFileToDownloadItem(item, &callback);
 756   item->DestinationObserverAsWeakPtr()->DestinationError(
 757       DOWNLOAD_INTERRUPT_REASON_FILE_FAILED);
 758   ASSERT_EQ(DownloadItem::IN_PROGRESS, item->GetState());
 759
 760   base::FilePath final_path(base::FilePath(kDummyPath).AppendASCII("foo.bar"));
 761   base::FilePath intermediate_path(final_path.InsertBeforeExtensionASCII("x"));
 762   base::FilePath new_intermediate_path(
 763       final_path.InsertBeforeExtensionASCII("y"));
 764   EXPECT_CALL(*download_file, RenameAndUniquify(intermediate_path, _))
 765       .WillOnce(ScheduleRenameCallback(DOWNLOAD_INTERRUPT_REASON_NONE,
 766                                        new_intermediate_path));
 767   EXPECT_CALL(*download_file, Cancel())
 768       .Times(1);
 769
 770   callback.Run(final_path, DownloadItem::TARGET_DISPOSITION_OVERWRITE,
 771                DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS, intermediate_path);
 772   RunAllPendingInMessageLoops();
 773   // All the callbacks should have happened by now.
 774   ::testing::Mock::VerifyAndClearExpectations(download_file);
 775   mock_delegate()->VerifyAndClearExpectations();
 776   EXPECT_EQ(DownloadItem::INTERRUPTED, item->GetState());
 777   EXPECT_TRUE(item->GetFullPath().empty());
 778   EXPECT_EQ(final_path, item->GetTargetFilePath());
 779 }
 780
 781 // As above. But if the download can be resumed by continuing, then the
 782 // intermediate path should be retained when the download is interrupted after
 783 // the intermediate rename succeeds.
 784 TEST_F(DownloadItemTest, InterruptedBeforeIntermediateRename_Continue) {
 785   CommandLine::ForCurrentProcess()->AppendSwitch(
 786       switches::kEnableDownloadResumption);
 787   DownloadItemImpl* item = CreateDownloadItem();
 788   DownloadItemImplDelegate::DownloadTargetCallback callback;
 789   MockDownloadFile* download_file =
 790       AddDownloadFileToDownloadItem(item, &callback);
 791   item->DestinationObserverAsWeakPtr()->DestinationError(
 792       DOWNLOAD_INTERRUPT_REASON_NETWORK_FAILED);
 793   ASSERT_EQ(DownloadItem::IN_PROGRESS, item->GetState());
 794
 795   base::FilePath final_path(base::FilePath(kDummyPath).AppendASCII("foo.bar"));
 796   base::FilePath intermediate_path(final_path.InsertBeforeExtensionASCII("x"));
 797   base::FilePath new_intermediate_path(
 798       final_path.InsertBeforeExtensionASCII("y"));
 799   EXPECT_CALL(*download_file, RenameAndUniquify(intermediate_path, _))
 800       .WillOnce(ScheduleRenameCallback(DOWNLOAD_INTERRUPT_REASON_NONE,
 801                                        new_intermediate_path));
 802   EXPECT_CALL(*download_file, FullPath())
 803       .WillOnce(Return(base::FilePath(new_intermediate_path)));
 804   EXPECT_CALL(*download_file, Detach());
 805
 806   callback.Run(final_path, DownloadItem::TARGET_DISPOSITION_OVERWRITE,
 807                DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS, intermediate_path);
 808   RunAllPendingInMessageLoops();
 809   // All the callbacks should have happened by now.
 810   ::testing::Mock::VerifyAndClearExpectations(download_file);
 811   mock_delegate()->VerifyAndClearExpectations();
 812   EXPECT_EQ(DownloadItem::INTERRUPTED, item->GetState());
 813   EXPECT_EQ(new_intermediate_path, item->GetFullPath());
 814   EXPECT_EQ(final_path, item->GetTargetFilePath());
 815 }
 816
 817 // As above. If the intermediate rename fails, then the interrupt reason should
 818 // be set to the destination error and the intermediate path should be empty.
 819 TEST_F(DownloadItemTest, InterruptedBeforeIntermediateRename_Failed) {
 820   CommandLine::ForCurrentProcess()->AppendSwitch(
 821       switches::kEnableDownloadResumption);
 822   DownloadItemImpl* item = CreateDownloadItem();
 823   DownloadItemImplDelegate::DownloadTargetCallback callback;
 824   MockDownloadFile* download_file =
 825       AddDownloadFileToDownloadItem(item, &callback);
 826   item->DestinationObserverAsWeakPtr()->DestinationError(
 827       DOWNLOAD_INTERRUPT_REASON_NETWORK_FAILED);
 828   ASSERT_EQ(DownloadItem::IN_PROGRESS, item->GetState());
 829
 830   base::FilePath final_path(base::FilePath(kDummyPath).AppendASCII("foo.bar"));
 831   base::FilePath intermediate_path(final_path.InsertBeforeExtensionASCII("x"));
 832   base::FilePath new_intermediate_path(
 833       final_path.InsertBeforeExtensionASCII("y"));
 834   EXPECT_CALL(*download_file, RenameAndUniquify(intermediate_path, _))
 835       .WillOnce(ScheduleRenameCallback(DOWNLOAD_INTERRUPT_REASON_FILE_FAILED,
 836                                        new_intermediate_path));
 837   EXPECT_CALL(*download_file, Cancel())
 838       .Times(1);
 839
 840   callback.Run(final_path, DownloadItem::TARGET_DISPOSITION_OVERWRITE,
 841                DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS, intermediate_path);
 842   RunAllPendingInMessageLoops();
 843   // All the callbacks should have happened by now.
 844   ::testing::Mock::VerifyAndClearExpectations(download_file);
 845   mock_delegate()->VerifyAndClearExpectations();
 846   EXPECT_EQ(DownloadItem::INTERRUPTED, item->GetState());
 847   EXPECT_EQ(DOWNLOAD_INTERRUPT_REASON_NETWORK_FAILED, item->GetLastReason());
 848   EXPECT_TRUE(item->GetFullPath().empty());
 849   EXPECT_EQ(final_path, item->GetTargetFilePath());
 850 }
 851
 852 TEST_F(DownloadItemTest, Canceled) {
 853   DownloadItemImpl* item = CreateDownloadItem();
 854   MockDownloadFile* download_file = AddDownloadFileToDownloadItem(item, NULL);
 855
 856   // Confirm cancel sets state properly.
 857   EXPECT_CALL(*download_file, Cancel());
 858   item->Cancel(true);
 859   EXPECT_EQ(DownloadItem::CANCELLED, item->GetState());
 860 }
 861
 862 TEST_F(DownloadItemTest, FileRemoved) {
 863   DownloadItemImpl* item = CreateDownloadItem();
 864
 865   EXPECT_FALSE(item->GetFileExternallyRemoved());
 866   item->OnDownloadedFileRemoved();
 867   EXPECT_TRUE(item->GetFileExternallyRemoved());
 868 }
 869
 870 TEST_F(DownloadItemTest, DestinationUpdate) {
 871   DownloadItemImpl* item = CreateDownloadItem();
 872   base::WeakPtr<DownloadDestinationObserver> as_observer(
 873       item->DestinationObserverAsWeakPtr());
 874   MockObserver observer(item);
 875
 876   EXPECT_EQ(0l, item->CurrentSpeed());
 877   EXPECT_EQ("", item->GetHashState());
 878   EXPECT_EQ(0l, item->GetReceivedBytes());
 879   EXPECT_EQ(0l, item->GetTotalBytes());
 880   EXPECT_FALSE(observer.CheckUpdated());
 881   item->SetTotalBytes(100l);
 882   EXPECT_EQ(100l, item->GetTotalBytes());
 883
 884   as_observer->DestinationUpdate(10, 20, "deadbeef");
 885   EXPECT_EQ(20l, item->CurrentSpeed());
 886   EXPECT_EQ("deadbeef", item->GetHashState());
 887   EXPECT_EQ(10l, item->GetReceivedBytes());
 888   EXPECT_EQ(100l, item->GetTotalBytes());
 889   EXPECT_TRUE(observer.CheckUpdated());
 890
 891   as_observer->DestinationUpdate(200, 20, "livebeef");
 892   EXPECT_EQ(20l, item->CurrentSpeed());
 893   EXPECT_EQ("livebeef", item->GetHashState());
 894   EXPECT_EQ(200l, item->GetReceivedBytes());
 895   EXPECT_EQ(0l, item->GetTotalBytes());
 896   EXPECT_TRUE(observer.CheckUpdated());
 897 }
 898
 899 TEST_F(DownloadItemTest, DestinationError) {
 900   DownloadItemImpl* item = CreateDownloadItem();
 901   MockDownloadFile* download_file =
 902       DoIntermediateRename(item, DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS);
 903   base::WeakPtr<DownloadDestinationObserver> as_observer(
 904       item->DestinationObserverAsWeakPtr());
 905   MockObserver observer(item);
 906
 907   EXPECT_EQ(DownloadItem::IN_PROGRESS, item->GetState());
 908   EXPECT_EQ(DOWNLOAD_INTERRUPT_REASON_NONE, item->GetLastReason());
 909   EXPECT_FALSE(observer.CheckUpdated());
 910
 911   EXPECT_CALL(*download_file, Cancel());
 912   as_observer->DestinationError(
 913       DOWNLOAD_INTERRUPT_REASON_FILE_ACCESS_DENIED);
 914   mock_delegate()->VerifyAndClearExpectations();
 915   EXPECT_TRUE(observer.CheckUpdated());
 916   EXPECT_EQ(DownloadItem::INTERRUPTED, item->GetState());
 917   EXPECT_EQ(DOWNLOAD_INTERRUPT_REASON_FILE_ACCESS_DENIED,
 918             item->GetLastReason());
 919 }
 920
 921 TEST_F(DownloadItemTest, DestinationCompleted) {
 922   DownloadItemImpl* item = CreateDownloadItem();
 923   base::WeakPtr<DownloadDestinationObserver> as_observer(
 924       item->DestinationObserverAsWeakPtr());
 925   MockObserver observer(item);
 926
 927   EXPECT_EQ(DownloadItem::IN_PROGRESS, item->GetState());
 928   EXPECT_EQ("", item->GetHash());
 929   EXPECT_EQ("", item->GetHashState());
 930   EXPECT_FALSE(item->AllDataSaved());
 931   EXPECT_FALSE(observer.CheckUpdated());
 932
 933   as_observer->DestinationUpdate(10, 20, "deadbeef");
 934   EXPECT_TRUE(observer.CheckUpdated());
 935   EXPECT_FALSE(observer.CheckUpdated()); // Confirm reset.
 936   EXPECT_EQ(DownloadItem::IN_PROGRESS, item->GetState());
 937   EXPECT_EQ("", item->GetHash());
 938   EXPECT_EQ("deadbeef", item->GetHashState());
 939   EXPECT_FALSE(item->AllDataSaved());
 940
 941   as_observer->DestinationCompleted("livebeef");
 942   mock_delegate()->VerifyAndClearExpectations();
 943   EXPECT_EQ(DownloadItem::IN_PROGRESS, item->GetState());
 944   EXPECT_TRUE(observer.CheckUpdated());
 945   EXPECT_EQ("livebeef", item->GetHash());
 946   EXPECT_EQ("", item->GetHashState());
 947   EXPECT_TRUE(item->AllDataSaved());
 948 }
 949
 950 TEST_F(DownloadItemTest, EnabledActionsForNormalDownload) {
 951   DownloadItemImpl* item = CreateDownloadItem();
 952   MockDownloadFile* download_file =
 953       DoIntermediateRename(item, DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS);
 954
 955   // InProgress
 956   ASSERT_EQ(DownloadItem::IN_PROGRESS, item->GetState());
 957   ASSERT_FALSE(item->GetTargetFilePath().empty());
 958   EXPECT_TRUE(item->CanShowInFolder());
 959   EXPECT_TRUE(item->CanOpenDownload());
 960
 961   // Complete
 962   EXPECT_CALL(*download_file, RenameAndAnnotate(_, _))
 963       .WillOnce(ScheduleRenameCallback(DOWNLOAD_INTERRUPT_REASON_NONE,
 964                                        base::FilePath(kDummyPath)));
 965   EXPECT_CALL(*mock_delegate(), ShouldCompleteDownload(item, _))
 966       .WillOnce(Return(true));
 967   EXPECT_CALL(*download_file, FullPath())
 968       .WillOnce(Return(base::FilePath()));
 969   EXPECT_CALL(*download_file, Detach());
 970   item->DestinationObserverAsWeakPtr()->DestinationCompleted(std::string());
 971   RunAllPendingInMessageLoops();
 972
 973   ASSERT_EQ(DownloadItem::COMPLETE, item->GetState());
 974   EXPECT_TRUE(item->CanShowInFolder());
 975   EXPECT_TRUE(item->CanOpenDownload());
 976 }
 977
 978 TEST_F(DownloadItemTest, EnabledActionsForTemporaryDownload) {
 979   DownloadItemImpl* item = CreateDownloadItem();
 980   MockDownloadFile* download_file =
 981       DoIntermediateRename(item, DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS);
 982   item->SetIsTemporary(true);
 983
 984   // InProgress Temporary
 985   ASSERT_EQ(DownloadItem::IN_PROGRESS, item->GetState());
 986   ASSERT_FALSE(item->GetTargetFilePath().empty());
 987   ASSERT_TRUE(item->IsTemporary());
 988   EXPECT_FALSE(item->CanShowInFolder());
 989   EXPECT_FALSE(item->CanOpenDownload());
 990
 991   // Complete Temporary
 992   EXPECT_CALL(*mock_delegate(), ShouldCompleteDownload(item, _))
 993       .WillOnce(Return(true));
 994   EXPECT_CALL(*download_file, RenameAndAnnotate(_, _))
 995       .WillOnce(ScheduleRenameCallback(DOWNLOAD_INTERRUPT_REASON_NONE,
 996                                        base::FilePath(kDummyPath)));
 997   EXPECT_CALL(*download_file, FullPath())
 998       .WillOnce(Return(base::FilePath()));
 999   EXPECT_CALL(*download_file, Detach());
1000   item->DestinationObserverAsWeakPtr()->DestinationCompleted(std::string());
1001   RunAllPendingInMessageLoops();
1002
1003   ASSERT_EQ(DownloadItem::COMPLETE, item->GetState());
1004   EXPECT_FALSE(item->CanShowInFolder());
1005   EXPECT_FALSE(item->CanOpenDownload());
1006 }
1007
1008 TEST_F(DownloadItemTest, EnabledActionsForInterruptedDownload) {
1009   DownloadItemImpl* item = CreateDownloadItem();
1010   MockDownloadFile* download_file =
1011       DoIntermediateRename(item, DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS);
1012
1013   EXPECT_CALL(*download_file, Cancel());
1014   item->DestinationObserverAsWeakPtr()->DestinationError(
1015       DOWNLOAD_INTERRUPT_REASON_FILE_FAILED);
1016   RunAllPendingInMessageLoops();
1017
1018   ASSERT_EQ(DownloadItem::INTERRUPTED, item->GetState());
1019   ASSERT_FALSE(item->GetTargetFilePath().empty());
1020   EXPECT_FALSE(item->CanShowInFolder());
1021   EXPECT_FALSE(item->CanOpenDownload());
1022 }
1023
1024 TEST_F(DownloadItemTest, EnabledActionsForCancelledDownload) {
1025   DownloadItemImpl* item = CreateDownloadItem();
1026   MockDownloadFile* download_file =
1027       DoIntermediateRename(item, DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS);
1028
1029   EXPECT_CALL(*download_file, Cancel());
1030   item->Cancel(true);
1031   RunAllPendingInMessageLoops();
1032
1033   ASSERT_EQ(DownloadItem::CANCELLED, item->GetState());
1034   EXPECT_FALSE(item->CanShowInFolder());
1035   EXPECT_FALSE(item->CanOpenDownload());
1036 }
1037
1038 // Test various aspects of the delegate completion blocker.
1039
1040 // Just allowing completion.
1041 TEST_F(DownloadItemTest, CompleteDelegate_ReturnTrue) {
1042   // Test to confirm that if we have a callback that returns true,
1043   // we complete immediately.
1044   DownloadItemImpl* item = CreateDownloadItem();
1045   MockDownloadFile* download_file =
1046       DoIntermediateRename(item, DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS);
1047
1048   // Drive the delegate interaction.
1049   EXPECT_CALL(*mock_delegate(), ShouldCompleteDownload(item, _))
1050       .WillOnce(Return(true));
1051   item->DestinationObserverAsWeakPtr()->DestinationCompleted(std::string());
1052   EXPECT_EQ(DownloadItem::IN_PROGRESS, item->GetState());
1053   EXPECT_FALSE(item->IsDangerous());
1054
1055   // Make sure the download can complete.
1056   EXPECT_CALL(*download_file, RenameAndAnnotate(base::FilePath(kDummyPath), _))
1057       .WillOnce(ScheduleRenameCallback(DOWNLOAD_INTERRUPT_REASON_NONE,
1058                                        base::FilePath(kDummyPath)));
1059   EXPECT_CALL(*mock_delegate(), ShouldOpenDownload(item, _))
1060       .WillOnce(Return(true));
1061   EXPECT_CALL(*download_file, FullPath())
1062       .WillOnce(Return(base::FilePath()));
1063   EXPECT_CALL(*download_file, Detach());
1064   RunAllPendingInMessageLoops();
1065   EXPECT_EQ(DownloadItem::COMPLETE, item->GetState());
1066 }
1067
1068 // Just delaying completion.
1069 TEST_F(DownloadItemTest, CompleteDelegate_BlockOnce) {
1070   // Test to confirm that if we have a callback that returns true,
1071   // we complete immediately.
1072   DownloadItemImpl* item = CreateDownloadItem();
1073   MockDownloadFile* download_file =
1074       DoIntermediateRename(item, DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS);
1075
1076   // Drive the delegate interaction.
1077   base::Closure delegate_callback;
1078   base::Closure copy_delegate_callback;
1079   EXPECT_CALL(*mock_delegate(), ShouldCompleteDownload(item, _))
1080       .WillOnce(DoAll(SaveArg<1>(&delegate_callback),
1081                       Return(false)))
1082       .WillOnce(Return(true));
1083   item->DestinationObserverAsWeakPtr()->DestinationCompleted(std::string());
1084   ASSERT_FALSE(delegate_callback.is_null());
1085   copy_delegate_callback = delegate_callback;
1086   delegate_callback.Reset();
1087   EXPECT_EQ(DownloadItem::IN_PROGRESS, item->GetState());
1088   copy_delegate_callback.Run();
1089   ASSERT_TRUE(delegate_callback.is_null());
1090   EXPECT_EQ(DownloadItem::IN_PROGRESS, item->GetState());
1091   EXPECT_FALSE(item->IsDangerous());
1092
1093   // Make sure the download can complete.
1094   EXPECT_CALL(*download_file, RenameAndAnnotate(base::FilePath(kDummyPath), _))
1095       .WillOnce(ScheduleRenameCallback(DOWNLOAD_INTERRUPT_REASON_NONE,
1096                                        base::FilePath(kDummyPath)));
1097   EXPECT_CALL(*mock_delegate(), ShouldOpenDownload(item, _))
1098       .WillOnce(Return(true));
1099   EXPECT_CALL(*download_file, FullPath())
1100       .WillOnce(Return(base::FilePath()));
1101   EXPECT_CALL(*download_file, Detach());
1102   RunAllPendingInMessageLoops();
1103   EXPECT_EQ(DownloadItem::COMPLETE, item->GetState());
1104 }
1105
1106 // Delay and set danger.
1107 TEST_F(DownloadItemTest, CompleteDelegate_SetDanger) {
1108   // Test to confirm that if we have a callback that returns true,
1109   // we complete immediately.
1110   DownloadItemImpl* item = CreateDownloadItem();
1111   MockDownloadFile* download_file =
1112       DoIntermediateRename(item, DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS);
1113
1114   // Drive the delegate interaction.
1115   base::Closure delegate_callback;
1116   base::Closure copy_delegate_callback;
1117   EXPECT_CALL(*mock_delegate(), ShouldCompleteDownload(item, _))
1118       .WillOnce(DoAll(SaveArg<1>(&delegate_callback),
1119                       Return(false)))
1120       .WillOnce(Return(true));
1121   item->DestinationObserverAsWeakPtr()->DestinationCompleted(std::string());
1122   ASSERT_FALSE(delegate_callback.is_null());
1123   copy_delegate_callback = delegate_callback;
1124   delegate_callback.Reset();
1125   EXPECT_FALSE(item->IsDangerous());
1126   item->OnContentCheckCompleted(
1127       content::DOWNLOAD_DANGER_TYPE_DANGEROUS_FILE);
1128   EXPECT_EQ(DownloadItem::IN_PROGRESS, item->GetState());
1129   copy_delegate_callback.Run();
1130   ASSERT_TRUE(delegate_callback.is_null());
1131   EXPECT_EQ(DownloadItem::IN_PROGRESS, item->GetState());
1132   EXPECT_TRUE(item->IsDangerous());
1133
1134   // Make sure the download doesn't complete until we've validated it.
1135   EXPECT_CALL(*download_file, RenameAndAnnotate(base::FilePath(kDummyPath), _))
1136       .WillOnce(ScheduleRenameCallback(DOWNLOAD_INTERRUPT_REASON_NONE,
1137                                        base::FilePath(kDummyPath)));
1138   EXPECT_CALL(*mock_delegate(), ShouldOpenDownload(item, _))
1139       .WillOnce(Return(true));
1140   EXPECT_CALL(*download_file, FullPath())
1141       .WillOnce(Return(base::FilePath()));
1142   EXPECT_CALL(*download_file, Detach());
1143   RunAllPendingInMessageLoops();
1144   EXPECT_EQ(DownloadItem::IN_PROGRESS, item->GetState());
1145   EXPECT_TRUE(item->IsDangerous());
1146
1147   item->ValidateDangerousDownload();
1148   EXPECT_EQ(DOWNLOAD_DANGER_TYPE_USER_VALIDATED, item->GetDangerType());
1149   RunAllPendingInMessageLoops();
1150   EXPECT_EQ(DownloadItem::COMPLETE, item->GetState());
1151 }
1152
1153 // Just delaying completion twice.
1154 TEST_F(DownloadItemTest, CompleteDelegate_BlockTwice) {
1155   // Test to confirm that if we have a callback that returns true,
1156   // we complete immediately.
1157   DownloadItemImpl* item = CreateDownloadItem();
1158   MockDownloadFile* download_file =
1159       DoIntermediateRename(item, DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS);
1160
1161   // Drive the delegate interaction.
1162   base::Closure delegate_callback;
1163   base::Closure copy_delegate_callback;
1164   EXPECT_CALL(*mock_delegate(), ShouldCompleteDownload(item, _))
1165       .WillOnce(DoAll(SaveArg<1>(&delegate_callback),
1166                       Return(false)))
1167       .WillOnce(DoAll(SaveArg<1>(&delegate_callback),
1168                       Return(false)))
1169       .WillOnce(Return(true));
1170   item->DestinationObserverAsWeakPtr()->DestinationCompleted(std::string());
1171   ASSERT_FALSE(delegate_callback.is_null());
1172   copy_delegate_callback = delegate_callback;
1173   delegate_callback.Reset();
1174   EXPECT_EQ(DownloadItem::IN_PROGRESS, item->GetState());
1175   copy_delegate_callback.Run();
1176   ASSERT_FALSE(delegate_callback.is_null());
1177   copy_delegate_callback = delegate_callback;
1178   delegate_callback.Reset();
1179   EXPECT_EQ(DownloadItem::IN_PROGRESS, item->GetState());
1180   copy_delegate_callback.Run();
1181   ASSERT_TRUE(delegate_callback.is_null());
1182   EXPECT_EQ(DownloadItem::IN_PROGRESS, item->GetState());
1183   EXPECT_FALSE(item->IsDangerous());
1184
1185   // Make sure the download can complete.
1186   EXPECT_CALL(*download_file, RenameAndAnnotate(base::FilePath(kDummyPath), _))
1187       .WillOnce(ScheduleRenameCallback(DOWNLOAD_INTERRUPT_REASON_NONE,
1188                                        base::FilePath(kDummyPath)));
1189   EXPECT_CALL(*mock_delegate(), ShouldOpenDownload(item, _))
1190       .WillOnce(Return(true));
1191   EXPECT_CALL(*download_file, FullPath())
1192       .WillOnce(Return(base::FilePath()));
1193   EXPECT_CALL(*download_file, Detach());
1194   RunAllPendingInMessageLoops();
1195   EXPECT_EQ(DownloadItem::COMPLETE, item->GetState());
1196 }
1197
1198 TEST_F(DownloadItemTest, StealDangerousDownload) {
1199   DownloadItemImpl* item = CreateDownloadItem();
1200   MockDownloadFile* download_file =
1201       DoIntermediateRename(item, DOWNLOAD_DANGER_TYPE_DANGEROUS_FILE);
1202   ASSERT_TRUE(item->IsDangerous());
1203   base::FilePath full_path(FILE_PATH_LITERAL("foo.txt"));
1204   base::FilePath returned_path;
1205
1206   EXPECT_CALL(*download_file, FullPath())
1207       .WillOnce(Return(full_path));
1208   EXPECT_CALL(*download_file, Detach());
1209   EXPECT_CALL(*mock_delegate(), DownloadRemoved(_));
1210   base::WeakPtrFactory<DownloadItemTest> weak_ptr_factory(this);
1211   item->StealDangerousDownload(
1212       base::Bind(&DownloadItemTest::OnDownloadFileAcquired,
1213                  weak_ptr_factory.GetWeakPtr(),
1214                  base::Unretained(&returned_path)));
1215   RunAllPendingInMessageLoops();
1216   EXPECT_EQ(full_path, returned_path);
1217 }
1218
1219 TEST_F(DownloadItemTest, StealInterruptedDangerousDownload) {
1220   CommandLine::ForCurrentProcess()->AppendSwitch(
1221       switches::kEnableDownloadResumption);
1222   base::FilePath returned_path;
1223   DownloadItemImpl* item = CreateDownloadItem();
1224   MockDownloadFile* download_file =
1225       DoIntermediateRename(item, DOWNLOAD_DANGER_TYPE_DANGEROUS_FILE);
1226   base::FilePath full_path = item->GetFullPath();
1227   EXPECT_FALSE(full_path.empty());
1228   EXPECT_CALL(*download_file, FullPath())
1229       .WillOnce(Return(full_path));
1230   EXPECT_CALL(*download_file, Detach());
1231   item->DestinationObserverAsWeakPtr()->DestinationError(
1232       DOWNLOAD_INTERRUPT_REASON_NETWORK_FAILED);
1233   ASSERT_TRUE(item->IsDangerous());
1234
1235   EXPECT_CALL(*mock_delegate(), DownloadRemoved(_));
1236   base::WeakPtrFactory<DownloadItemTest> weak_ptr_factory(this);
1237   item->StealDangerousDownload(
1238       base::Bind(&DownloadItemTest::OnDownloadFileAcquired,
1239                  weak_ptr_factory.GetWeakPtr(),
1240                  base::Unretained(&returned_path)));
1241   RunAllPendingInMessageLoops();
1242   EXPECT_EQ(full_path, returned_path);
1243 }
1244
1245 TEST_F(DownloadItemTest, StealInterruptedNonResumableDangerousDownload) {
1246   CommandLine::ForCurrentProcess()->AppendSwitch(
1247       switches::kEnableDownloadResumption);
1248   base::FilePath returned_path;
1249   DownloadItemImpl* item = CreateDownloadItem();
1250   MockDownloadFile* download_file =
1251       DoIntermediateRename(item, DOWNLOAD_DANGER_TYPE_DANGEROUS_FILE);
1252   EXPECT_CALL(*download_file, Cancel());
1253   item->DestinationObserverAsWeakPtr()->DestinationError(
1254       DOWNLOAD_INTERRUPT_REASON_FILE_FAILED);
1255   ASSERT_TRUE(item->IsDangerous());
1256
1257   EXPECT_CALL(*mock_delegate(), DownloadRemoved(_));
1258   base::WeakPtrFactory<DownloadItemTest> weak_ptr_factory(this);
1259   item->StealDangerousDownload(
1260       base::Bind(&DownloadItemTest::OnDownloadFileAcquired,
1261                  weak_ptr_factory.GetWeakPtr(),
1262                  base::Unretained(&returned_path)));
1263   RunAllPendingInMessageLoops();
1264   EXPECT_TRUE(returned_path.empty());
1265 }
1266
1267 TEST(MockDownloadItem, Compiles) {
1268   MockDownloadItem mock_item;
1269 }
1270
1271 }  // namespace content