content/browser/download/download_manager_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 <set>
   6 #include <string>
   7
   8 #include "base/bind.h"
   9 #include "base/files/scoped_temp_dir.h"
  10 #include "base/memory/scoped_ptr.h"
  11 #include "base/memory/weak_ptr.h"
  12 #include "base/message_loop/message_loop.h"
  13 #include "base/stl_util.h"
  14 #include "base/strings/string16.h"
  15 #include "base/strings/string_util.h"
  16 #include "base/strings/utf_string_conversions.h"
  17 #include "build/build_config.h"
  18 #include "content/browser/byte_stream.h"
  19 #include "content/browser/download/download_create_info.h"
  20 #include "content/browser/download/download_file_factory.h"
  21 #include "content/browser/download/download_item_factory.h"
  22 #include "content/browser/download/download_item_impl.h"
  23 #include "content/browser/download/download_item_impl_delegate.h"
  24 #include "content/browser/download/download_manager_impl.h"
  25 #include "content/browser/download/download_request_handle.h"
  26 #include "content/browser/download/mock_download_file.h"
  27 #include "content/public/browser/browser_context.h"
  28 #include "content/public/browser/download_interrupt_reasons.h"
  29 #include "content/public/browser/download_item.h"
  30 #include "content/public/browser/download_manager_delegate.h"
  31 #include "content/public/test/mock_download_item.h"
  32 #include "content/public/test/test_browser_context.h"
  33 #include "content/public/test/test_browser_thread.h"
  34 #include "net/base/net_log.h"
  35 #include "net/base/net_util.h"
  36 #include "testing/gmock/include/gmock/gmock.h"
  37 #include "testing/gmock_mutant.h"
  38 #include "testing/gtest/include/gtest/gtest.h"
  39
  40 using ::testing::AllOf;
  41 using ::testing::DoAll;
  42 using ::testing::Eq;
  43 using ::testing::Ref;
  44 using ::testing::Return;
  45 using ::testing::ReturnRef;
  46 using ::testing::SetArgPointee;
  47 using ::testing::StrictMock;
  48 using ::testing::_;
  49
  50 ACTION_TEMPLATE(RunCallback,
  51                 HAS_1_TEMPLATE_PARAMS(int, k),
  52                 AND_1_VALUE_PARAMS(p0)) {
  53   return ::std::tr1::get<k>(args).Run(p0);
  54 }
  55
  56 namespace content {
  57 class ByteStreamReader;
  58
  59 namespace {
  60
  61 // Matches a DownloadCreateInfo* that points to the same object as |info| and
  62 // has a |default_download_directory| that matches |download_directory|.
  63 MATCHER_P2(DownloadCreateInfoWithDefaultPath, info, download_directory, "") {
  64   return arg == info &&
  65       arg->default_download_directory == download_directory;
  66 }
  67
  68 class MockDownloadItemImpl : public DownloadItemImpl {
  69  public:
  70   // Use history constructor for minimal base object.
  71   explicit MockDownloadItemImpl(DownloadItemImplDelegate* delegate)
  72       : DownloadItemImpl(
  73           delegate,
  74           content::DownloadItem::kInvalidId,
  75           base::FilePath(),
  76           base::FilePath(),
  77           std::vector<GURL>(),
  78           GURL(),
  79           "application/octet-stream",
  80           "application/octet-stream",
  81           base::Time(),
  82           base::Time(),
  83           std::string(),
  84           std::string(),
  85           0,
  86           0,
  87           DownloadItem::COMPLETE,
  88           DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS,
  89           DOWNLOAD_INTERRUPT_REASON_NONE,
  90           false,
  91           net::BoundNetLog()) {}
  92   virtual ~MockDownloadItemImpl() {}
  93
  94   MOCK_METHOD4(OnDownloadTargetDetermined,
  95                void(const base::FilePath&, TargetDisposition,
  96                     DownloadDangerType, const base::FilePath&));
  97   MOCK_METHOD1(AddObserver, void(DownloadItem::Observer*));
  98   MOCK_METHOD1(RemoveObserver, void(DownloadItem::Observer*));
  99   MOCK_METHOD0(UpdateObservers, void());
 100   MOCK_METHOD0(CanShowInFolder, bool());
 101   MOCK_METHOD0(CanOpenDownload, bool());
 102   MOCK_METHOD0(ShouldOpenFileBasedOnExtension, bool());
 103   MOCK_METHOD0(OpenDownload, void());
 104   MOCK_METHOD0(ShowDownloadInShell, void());
 105   MOCK_METHOD0(ValidateDangerousDownload, void());
 106   MOCK_METHOD1(StealDangerousDownload, void(const AcquireFileCallback&));
 107   MOCK_METHOD3(UpdateProgress, void(int64, int64, const std::string&));
 108   MOCK_METHOD1(Cancel, void(bool));
 109   MOCK_METHOD0(MarkAsComplete, void());
 110   MOCK_METHOD1(OnAllDataSaved, void(const std::string&));
 111   MOCK_METHOD0(OnDownloadedFileRemoved, void());
 112   virtual void Start(
 113       scoped_ptr<DownloadFile> download_file,
 114       scoped_ptr<DownloadRequestHandleInterface> req_handle) OVERRIDE {
 115     MockStart(download_file.get(), req_handle.get());
 116   }
 117
 118   MOCK_METHOD2(MockStart, void(DownloadFile*, DownloadRequestHandleInterface*));
 119
 120   MOCK_METHOD0(Remove, void());
 121   MOCK_CONST_METHOD1(TimeRemaining, bool(base::TimeDelta*));
 122   MOCK_CONST_METHOD0(CurrentSpeed, int64());
 123   MOCK_CONST_METHOD0(PercentComplete, int());
 124   MOCK_CONST_METHOD0(AllDataSaved, bool());
 125   MOCK_CONST_METHOD1(MatchesQuery, bool(const base::string16& query));
 126   MOCK_CONST_METHOD0(IsDone, bool());
 127   MOCK_CONST_METHOD0(GetFullPath, const base::FilePath&());
 128   MOCK_CONST_METHOD0(GetTargetFilePath, const base::FilePath&());
 129   MOCK_CONST_METHOD0(GetTargetDisposition, TargetDisposition());
 130   MOCK_METHOD1(OnContentCheckCompleted, void(DownloadDangerType));
 131   MOCK_CONST_METHOD0(GetState, DownloadState());
 132   MOCK_CONST_METHOD0(GetUrlChain, const std::vector<GURL>&());
 133   MOCK_METHOD1(SetTotalBytes, void(int64));
 134   MOCK_CONST_METHOD0(GetURL, const GURL&());
 135   MOCK_CONST_METHOD0(GetOriginalUrl, const GURL&());
 136   MOCK_CONST_METHOD0(GetReferrerUrl, const GURL&());
 137   MOCK_CONST_METHOD0(GetTabUrl, const GURL&());
 138   MOCK_CONST_METHOD0(GetTabReferrerUrl, const GURL&());
 139   MOCK_CONST_METHOD0(GetSuggestedFilename, std::string());
 140   MOCK_CONST_METHOD0(GetContentDisposition, std::string());
 141   MOCK_CONST_METHOD0(GetMimeType, std::string());
 142   MOCK_CONST_METHOD0(GetOriginalMimeType, std::string());
 143   MOCK_CONST_METHOD0(GetReferrerCharset, std::string());
 144   MOCK_CONST_METHOD0(GetRemoteAddress, std::string());
 145   MOCK_CONST_METHOD0(GetTotalBytes, int64());
 146   MOCK_CONST_METHOD0(GetReceivedBytes, int64());
 147   MOCK_CONST_METHOD0(GetHashState, const std::string&());
 148   MOCK_CONST_METHOD0(GetHash, const std::string&());
 149   MOCK_CONST_METHOD0(GetId, uint32());
 150   MOCK_CONST_METHOD0(GetStartTime, base::Time());
 151   MOCK_CONST_METHOD0(GetEndTime, base::Time());
 152   MOCK_METHOD0(GetDownloadManager, DownloadManager*());
 153   MOCK_CONST_METHOD0(IsPaused, bool());
 154   MOCK_CONST_METHOD0(GetOpenWhenComplete, bool());
 155   MOCK_METHOD1(SetOpenWhenComplete, void(bool));
 156   MOCK_CONST_METHOD0(GetFileExternallyRemoved, bool());
 157   MOCK_CONST_METHOD0(GetDangerType, DownloadDangerType());
 158   MOCK_CONST_METHOD0(IsDangerous, bool());
 159   MOCK_METHOD0(GetAutoOpened, bool());
 160   MOCK_CONST_METHOD0(GetForcedFilePath, const base::FilePath&());
 161   MOCK_CONST_METHOD0(HasUserGesture, bool());
 162   MOCK_CONST_METHOD0(GetTransitionType, PageTransition());
 163   MOCK_CONST_METHOD0(IsTemporary, bool());
 164   MOCK_METHOD1(SetIsTemporary, void(bool));
 165   MOCK_METHOD1(SetOpened, void(bool));
 166   MOCK_CONST_METHOD0(GetOpened, bool());
 167   MOCK_CONST_METHOD0(GetLastModifiedTime, const std::string&());
 168   MOCK_CONST_METHOD0(GetETag, const std::string&());
 169   MOCK_CONST_METHOD0(GetLastReason, DownloadInterruptReason());
 170   MOCK_CONST_METHOD0(GetBrowserContext, BrowserContext*());
 171   MOCK_CONST_METHOD0(GetWebContents, WebContents*());
 172   MOCK_CONST_METHOD0(GetFileNameToReportUser, base::FilePath());
 173   MOCK_METHOD1(SetDisplayName, void(const base::FilePath&));
 174   MOCK_METHOD0(NotifyRemoved, void());
 175   // May be called when vlog is on.
 176   virtual std::string DebugString(bool verbose) const OVERRIDE {
 177     return std::string();
 178   }
 179 };
 180
 181 class MockDownloadManagerDelegate : public DownloadManagerDelegate {
 182  public:
 183   MockDownloadManagerDelegate();
 184   virtual ~MockDownloadManagerDelegate();
 185
 186   MOCK_METHOD0(Shutdown, void());
 187   MOCK_METHOD1(GetNextId, void(const DownloadIdCallback&));
 188   MOCK_METHOD2(DetermineDownloadTarget,
 189                bool(DownloadItem* item,
 190                     const DownloadTargetCallback&));
 191   MOCK_METHOD1(ShouldOpenFileBasedOnExtension, bool(const base::FilePath&));
 192   MOCK_METHOD2(ShouldCompleteDownload,
 193                bool(DownloadItem*, const base::Closure&));
 194   MOCK_METHOD2(ShouldOpenDownload,
 195                bool(DownloadItem*, const DownloadOpenDelayedCallback&));
 196   MOCK_METHOD0(GenerateFileHash, bool());
 197   MOCK_METHOD4(GetSaveDir, void(BrowserContext*,
 198                                 base::FilePath*, base::FilePath*, bool*));
 199   MOCK_METHOD5(ChooseSavePath, void(
 200       WebContents*, const base::FilePath&, const base::FilePath::StringType&,
 201       bool, const SavePackagePathPickedCallback&));
 202   MOCK_CONST_METHOD0(ApplicationClientIdForFileScanning, std::string());
 203 };
 204
 205 MockDownloadManagerDelegate::MockDownloadManagerDelegate() {}
 206
 207 MockDownloadManagerDelegate::~MockDownloadManagerDelegate() {}
 208
 209 class MockDownloadItemFactory
 210     : public DownloadItemFactory,
 211       public base::SupportsWeakPtr<MockDownloadItemFactory> {
 212  public:
 213   MockDownloadItemFactory();
 214   virtual ~MockDownloadItemFactory();
 215
 216   // Access to map of created items.
 217   // TODO(rdsmith): Could add type (save page, persisted, etc.)
 218   // functionality if it's ever needed by consumers.
 219
 220   // Returns NULL if no item of that id is present.
 221   MockDownloadItemImpl* GetItem(int id);
 222
 223   // Remove and return an item made by the factory.
 224   // Generally used during teardown.
 225   MockDownloadItemImpl* PopItem();
 226
 227   // Should be called when the item of this id is removed so that
 228   // we don't keep dangling pointers.
 229   void RemoveItem(int id);
 230
 231   // Overridden methods from DownloadItemFactory.
 232   virtual DownloadItemImpl* CreatePersistedItem(
 233       DownloadItemImplDelegate* delegate,
 234       uint32 download_id,
 235       const base::FilePath& current_path,
 236       const base::FilePath& target_path,
 237       const std::vector<GURL>& url_chain,
 238       const GURL& referrer_url,
 239       const std::string& mime_type,
 240       const std::string& original_mime_type,
 241       const base::Time& start_time,
 242       const base::Time& end_time,
 243       const std::string& etag,
 244       const std::string& last_modofied,
 245       int64 received_bytes,
 246       int64 total_bytes,
 247       DownloadItem::DownloadState state,
 248       DownloadDangerType danger_type,
 249       DownloadInterruptReason interrupt_reason,
 250       bool opened,
 251       const net::BoundNetLog& bound_net_log) OVERRIDE;
 252   virtual DownloadItemImpl* CreateActiveItem(
 253       DownloadItemImplDelegate* delegate,
 254       uint32 download_id,
 255       const DownloadCreateInfo& info,
 256       const net::BoundNetLog& bound_net_log) OVERRIDE;
 257   virtual DownloadItemImpl* CreateSavePageItem(
 258       DownloadItemImplDelegate* delegate,
 259       uint32 download_id,
 260       const base::FilePath& path,
 261       const GURL& url,
 262         const std::string& mime_type,
 263       scoped_ptr<DownloadRequestHandleInterface> request_handle,
 264       const net::BoundNetLog& bound_net_log) OVERRIDE;
 265
 266  private:
 267   std::map<uint32, MockDownloadItemImpl*> items_;
 268   DownloadItemImplDelegate item_delegate_;
 269
 270   DISALLOW_COPY_AND_ASSIGN(MockDownloadItemFactory);
 271 };
 272
 273 MockDownloadItemFactory::MockDownloadItemFactory() {}
 274
 275 MockDownloadItemFactory::~MockDownloadItemFactory() {}
 276
 277 MockDownloadItemImpl* MockDownloadItemFactory::GetItem(int id) {
 278   if (items_.find(id) == items_.end())
 279     return NULL;
 280   return items_[id];
 281 }
 282
 283 MockDownloadItemImpl* MockDownloadItemFactory::PopItem() {
 284   if (items_.empty())
 285     return NULL;
 286
 287   std::map<uint32, MockDownloadItemImpl*>::iterator first_item
 288       = items_.begin();
 289   MockDownloadItemImpl* result = first_item->second;
 290   items_.erase(first_item);
 291   return result;
 292 }
 293
 294 void MockDownloadItemFactory::RemoveItem(int id) {
 295   DCHECK(items_.find(id) != items_.end());
 296   items_.erase(id);
 297 }
 298
 299 DownloadItemImpl* MockDownloadItemFactory::CreatePersistedItem(
 300     DownloadItemImplDelegate* delegate,
 301     uint32 download_id,
 302     const base::FilePath& current_path,
 303     const base::FilePath& target_path,
 304     const std::vector<GURL>& url_chain,
 305     const GURL& referrer_url,
 306     const std::string& mime_type,
 307     const std::string& original_mime_type,
 308     const base::Time& start_time,
 309     const base::Time& end_time,
 310     const std::string& etag,
 311     const std::string& last_modified,
 312     int64 received_bytes,
 313     int64 total_bytes,
 314     DownloadItem::DownloadState state,
 315     DownloadDangerType danger_type,
 316     DownloadInterruptReason interrupt_reason,
 317     bool opened,
 318     const net::BoundNetLog& bound_net_log) {
 319   DCHECK(items_.find(download_id) == items_.end());
 320   MockDownloadItemImpl* result =
 321       new StrictMock<MockDownloadItemImpl>(&item_delegate_);
 322   EXPECT_CALL(*result, GetId())
 323       .WillRepeatedly(Return(download_id));
 324   items_[download_id] = result;
 325   return result;
 326 }
 327
 328 DownloadItemImpl* MockDownloadItemFactory::CreateActiveItem(
 329     DownloadItemImplDelegate* delegate,
 330     uint32 download_id,
 331     const DownloadCreateInfo& info,
 332     const net::BoundNetLog& bound_net_log) {
 333   DCHECK(items_.find(download_id) == items_.end());
 334
 335   MockDownloadItemImpl* result =
 336       new StrictMock<MockDownloadItemImpl>(&item_delegate_);
 337   EXPECT_CALL(*result, GetId())
 338       .WillRepeatedly(Return(download_id));
 339   items_[download_id] = result;
 340
 341   // Active items are created and then immediately are called to start
 342   // the download.
 343   EXPECT_CALL(*result, MockStart(_, _));
 344
 345   return result;
 346 }
 347
 348 DownloadItemImpl* MockDownloadItemFactory::CreateSavePageItem(
 349     DownloadItemImplDelegate* delegate,
 350     uint32 download_id,
 351     const base::FilePath& path,
 352     const GURL& url,
 353     const std::string& mime_type,
 354     scoped_ptr<DownloadRequestHandleInterface> request_handle,
 355     const net::BoundNetLog& bound_net_log) {
 356   DCHECK(items_.find(download_id) == items_.end());
 357
 358   MockDownloadItemImpl* result =
 359       new StrictMock<MockDownloadItemImpl>(&item_delegate_);
 360   EXPECT_CALL(*result, GetId())
 361       .WillRepeatedly(Return(download_id));
 362   items_[download_id] = result;
 363
 364   return result;
 365 }
 366
 367 class MockDownloadFileFactory
 368     : public DownloadFileFactory,
 369       public base::SupportsWeakPtr<MockDownloadFileFactory> {
 370  public:
 371   MockDownloadFileFactory() {}
 372   virtual ~MockDownloadFileFactory() {}
 373
 374   // Overridden method from DownloadFileFactory
 375   MOCK_METHOD8(MockCreateFile, MockDownloadFile*(
 376     const DownloadSaveInfo&,
 377     const base::FilePath&,
 378     const GURL&, const GURL&, bool,
 379     ByteStreamReader*,
 380     const net::BoundNetLog&,
 381     base::WeakPtr<DownloadDestinationObserver>));
 382
 383   virtual DownloadFile* CreateFile(
 384       scoped_ptr<DownloadSaveInfo> save_info,
 385       const base::FilePath& default_download_directory,
 386       const GURL& url,
 387       const GURL& referrer_url,
 388       bool calculate_hash,
 389       scoped_ptr<ByteStreamReader> stream,
 390       const net::BoundNetLog& bound_net_log,
 391       base::WeakPtr<DownloadDestinationObserver> observer) {
 392     return MockCreateFile(*save_info.get(), default_download_directory, url,
 393                           referrer_url, calculate_hash,
 394                           stream.get(), bound_net_log, observer);
 395   }
 396 };
 397
 398 class MockBrowserContext : public BrowserContext {
 399  public:
 400   MockBrowserContext() {}
 401   ~MockBrowserContext() {}
 402
 403   MOCK_CONST_METHOD0(GetPath, base::FilePath());
 404   MOCK_CONST_METHOD0(IsOffTheRecord, bool());
 405   MOCK_METHOD0(GetRequestContext, net::URLRequestContextGetter*());
 406   MOCK_METHOD1(GetRequestContextForRenderProcess,
 407                net::URLRequestContextGetter*(int renderer_child_id));
 408   MOCK_METHOD0(GetMediaRequestContext,
 409                net::URLRequestContextGetter*());
 410   MOCK_METHOD1(GetMediaRequestContextForRenderProcess,
 411                net::URLRequestContextGetter*(int renderer_child_id));
 412   MOCK_METHOD2(GetMediaRequestContextForStoragePartition,
 413                net::URLRequestContextGetter*(
 414                    const base::FilePath& partition_path, bool in_memory));
 415   MOCK_METHOD0(GetResourceContext, ResourceContext*());
 416   MOCK_METHOD0(GetDownloadManagerDelegate, DownloadManagerDelegate*());
 417   MOCK_METHOD0(GetGuestManager, BrowserPluginGuestManager* ());
 418   MOCK_METHOD0(GetSpecialStoragePolicy, quota::SpecialStoragePolicy*());
 419   MOCK_METHOD0(GetPushMessagingService, PushMessagingService*());
 420   MOCK_METHOD0(GetSSLHostStateDelegate, SSLHostStateDelegate*());
 421 };
 422
 423 class MockDownloadManagerObserver : public DownloadManager::Observer {
 424  public:
 425   MockDownloadManagerObserver() {}
 426   ~MockDownloadManagerObserver() {}
 427   MOCK_METHOD2(OnDownloadCreated, void(
 428         DownloadManager*, DownloadItem*));
 429   MOCK_METHOD1(ManagerGoingDown, void(DownloadManager*));
 430   MOCK_METHOD2(SelectFileDialogDisplayed, void(
 431         DownloadManager*, int32));
 432 };
 433
 434 }  // namespace
 435
 436 class DownloadManagerTest : public testing::Test {
 437  public:
 438   static const char* kTestData;
 439   static const size_t kTestDataLen;
 440
 441   DownloadManagerTest()
 442       : callback_called_(false),
 443         ui_thread_(BrowserThread::UI, &message_loop_),
 444         file_thread_(BrowserThread::FILE, &message_loop_),
 445         next_download_id_(0) {
 446   }
 447
 448   // We tear down everything in TearDown().
 449   virtual ~DownloadManagerTest() {}
 450
 451   // Create a MockDownloadItemFactory and MockDownloadManagerDelegate,
 452   // then create a DownloadManager that points
 453   // at all of those.
 454   virtual void SetUp() {
 455     DCHECK(!download_manager_);
 456
 457     mock_download_item_factory_ = (new MockDownloadItemFactory())->AsWeakPtr();
 458     mock_download_file_factory_ = (new MockDownloadFileFactory())->AsWeakPtr();
 459     mock_download_manager_delegate_.reset(
 460         new StrictMock<MockDownloadManagerDelegate>);
 461     EXPECT_CALL(*mock_download_manager_delegate_.get(), Shutdown())
 462         .WillOnce(Return());
 463     mock_browser_context_.reset(new StrictMock<MockBrowserContext>);
 464     EXPECT_CALL(*mock_browser_context_.get(), IsOffTheRecord())
 465         .WillRepeatedly(Return(false));
 466
 467     download_manager_.reset(new DownloadManagerImpl(
 468                                 NULL, mock_browser_context_.get()));
 469     download_manager_->SetDownloadItemFactoryForTesting(
 470         scoped_ptr<DownloadItemFactory>(
 471             mock_download_item_factory_.get()).Pass());
 472     download_manager_->SetDownloadFileFactoryForTesting(
 473         scoped_ptr<DownloadFileFactory>(
 474             mock_download_file_factory_.get()).Pass());
 475     observer_.reset(new MockDownloadManagerObserver());
 476     download_manager_->AddObserver(observer_.get());
 477     download_manager_->SetDelegate(mock_download_manager_delegate_.get());
 478   }
 479
 480   virtual void TearDown() {
 481     while (MockDownloadItemImpl*
 482            item = mock_download_item_factory_->PopItem()) {
 483       EXPECT_CALL(*item, GetState())
 484           .WillOnce(Return(DownloadItem::CANCELLED));
 485     }
 486     EXPECT_CALL(GetMockObserver(), ManagerGoingDown(download_manager_.get()))
 487         .WillOnce(Return());
 488
 489     download_manager_->Shutdown();
 490     download_manager_.reset();
 491     message_loop_.RunUntilIdle();
 492     ASSERT_EQ(NULL, mock_download_item_factory_.get());
 493     ASSERT_EQ(NULL, mock_download_file_factory_.get());
 494     message_loop_.RunUntilIdle();
 495     mock_download_manager_delegate_.reset();
 496     mock_browser_context_.reset();
 497   }
 498
 499   // Returns download id.
 500   MockDownloadItemImpl& AddItemToManager() {
 501     DownloadCreateInfo info;
 502
 503     // Args are ignored except for download id, so everything else can be
 504     // null.
 505     uint32 id = next_download_id_;
 506     ++next_download_id_;
 507     info.request_handle = DownloadRequestHandle();
 508     download_manager_->CreateActiveItem(id, info);
 509     DCHECK(mock_download_item_factory_->GetItem(id));
 510     MockDownloadItemImpl& item(*mock_download_item_factory_->GetItem(id));
 511     // Satisfy expectation.  If the item is created in StartDownload(),
 512     // we call Start on it immediately, so we need to set that expectation
 513     // in the factory.
 514     scoped_ptr<DownloadRequestHandleInterface> req_handle;
 515     item.Start(scoped_ptr<DownloadFile>(), req_handle.Pass());
 516
 517     return item;
 518   }
 519
 520   MockDownloadItemImpl& GetMockDownloadItem(int id) {
 521     MockDownloadItemImpl* itemp = mock_download_item_factory_->GetItem(id);
 522
 523     DCHECK(itemp);
 524     return *itemp;
 525   }
 526
 527   void RemoveMockDownloadItem(int id) {
 528     // Owned by DownloadManager; should be deleted there.
 529     mock_download_item_factory_->RemoveItem(id);
 530   }
 531
 532   MockDownloadManagerDelegate& GetMockDownloadManagerDelegate() {
 533     return *mock_download_manager_delegate_;
 534   }
 535
 536   MockDownloadManagerObserver& GetMockObserver() {
 537     return *observer_;
 538   }
 539
 540   void DownloadTargetDeterminedCallback(
 541       const base::FilePath& target_path,
 542       DownloadItem::TargetDisposition disposition,
 543       DownloadDangerType danger_type,
 544       const base::FilePath& intermediate_path) {
 545     callback_called_ = true;
 546     target_path_ = target_path;
 547     target_disposition_ = disposition;
 548     danger_type_ = danger_type;
 549     intermediate_path_ = intermediate_path;
 550   }
 551
 552   void DetermineDownloadTarget(DownloadItemImpl* item) {
 553     download_manager_->DetermineDownloadTarget(
 554         item, base::Bind(
 555             &DownloadManagerTest::DownloadTargetDeterminedCallback,
 556             base::Unretained(this)));
 557   }
 558
 559  protected:
 560   // Key test variable; we'll keep it available to sub-classes.
 561   scoped_ptr<DownloadManagerImpl> download_manager_;
 562   base::WeakPtr<MockDownloadFileFactory> mock_download_file_factory_;
 563
 564   // Target detetermined callback.
 565   bool callback_called_;
 566   base::FilePath target_path_;
 567   DownloadItem::TargetDisposition target_disposition_;
 568   DownloadDangerType danger_type_;
 569   base::FilePath intermediate_path_;
 570
 571  private:
 572   base::MessageLoopForUI message_loop_;
 573   TestBrowserThread ui_thread_;
 574   TestBrowserThread file_thread_;
 575   base::WeakPtr<MockDownloadItemFactory> mock_download_item_factory_;
 576   scoped_ptr<MockDownloadManagerDelegate> mock_download_manager_delegate_;
 577   scoped_ptr<MockBrowserContext> mock_browser_context_;
 578   scoped_ptr<MockDownloadManagerObserver> observer_;
 579   uint32 next_download_id_;
 580
 581   DISALLOW_COPY_AND_ASSIGN(DownloadManagerTest);
 582 };
 583
 584 // Confirm the appropriate invocations occur when you start a download.
 585 TEST_F(DownloadManagerTest, StartDownload) {
 586   scoped_ptr<DownloadCreateInfo> info(new DownloadCreateInfo);
 587   scoped_ptr<ByteStreamReader> stream;
 588   uint32 local_id(5);  // Random value
 589   base::FilePath download_path(FILE_PATH_LITERAL("download/path"));
 590
 591   EXPECT_FALSE(download_manager_->GetDownload(local_id));
 592
 593   EXPECT_CALL(GetMockObserver(), OnDownloadCreated(download_manager_.get(), _))
 594       .WillOnce(Return());
 595   EXPECT_CALL(GetMockDownloadManagerDelegate(), GetNextId(_))
 596       .WillOnce(RunCallback<0>(local_id));
 597
 598   // Doing nothing will set the default download directory to null.
 599   EXPECT_CALL(GetMockDownloadManagerDelegate(), GetSaveDir(_, _, _, _));
 600   EXPECT_CALL(GetMockDownloadManagerDelegate(), GenerateFileHash())
 601       .WillOnce(Return(true));
 602   EXPECT_CALL(GetMockDownloadManagerDelegate(),
 603               ApplicationClientIdForFileScanning())
 604       .WillRepeatedly(Return("client-id"));
 605   MockDownloadFile* mock_file = new MockDownloadFile;
 606   EXPECT_CALL(*mock_file, SetClientGuid("client-id"));
 607   EXPECT_CALL(*mock_download_file_factory_.get(),
 608               MockCreateFile(Ref(*info->save_info.get()), _, _, _, true,
 609                              stream.get(), _, _))
 610       .WillOnce(Return(mock_file));
 611
 612   download_manager_->StartDownload(
 613       info.Pass(), stream.Pass(), DownloadUrlParameters::OnStartedCallback());
 614   EXPECT_TRUE(download_manager_->GetDownload(local_id));
 615 }
 616
 617 // Confirm that calling DetermineDownloadTarget behaves properly if the delegate
 618 // blocks starting.
 619 TEST_F(DownloadManagerTest, DetermineDownloadTarget_True) {
 620   // Put a mock we have a handle to on the download manager.
 621   MockDownloadItemImpl& item(AddItemToManager());
 622   EXPECT_CALL(item, GetState())
 623       .WillRepeatedly(Return(DownloadItem::IN_PROGRESS));
 624
 625   EXPECT_CALL(GetMockDownloadManagerDelegate(),
 626               DetermineDownloadTarget(&item, _))
 627       .WillOnce(Return(true));
 628   DetermineDownloadTarget(&item);
 629 }
 630
 631 // Confirm that calling DetermineDownloadTarget behaves properly if the delegate
 632 // allows starting.  This also tests OnDownloadTargetDetermined.
 633 TEST_F(DownloadManagerTest, DetermineDownloadTarget_False) {
 634   // Put a mock we have a handle to on the download manager.
 635   MockDownloadItemImpl& item(AddItemToManager());
 636
 637   base::FilePath path(FILE_PATH_LITERAL("random_filepath.txt"));
 638   EXPECT_CALL(GetMockDownloadManagerDelegate(),
 639               DetermineDownloadTarget(&item, _))
 640       .WillOnce(Return(false));
 641   EXPECT_CALL(item, GetForcedFilePath())
 642       .WillOnce(ReturnRef(path));
 643
 644   // Confirm that the callback was called with the right values in this case.
 645   callback_called_ = false;
 646   DetermineDownloadTarget(&item);
 647   EXPECT_TRUE(callback_called_);
 648   EXPECT_EQ(path, target_path_);
 649   EXPECT_EQ(DownloadItem::TARGET_DISPOSITION_OVERWRITE, target_disposition_);
 650   EXPECT_EQ(DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS, danger_type_);
 651   EXPECT_EQ(path, intermediate_path_);
 652 }
 653
 654 // Confirm the DownloadManagerImpl::RemoveAllDownloads() functionality
 655 TEST_F(DownloadManagerTest, RemoveAllDownloads) {
 656   base::Time now(base::Time::Now());
 657   for (uint32 i = 0; i < 4; ++i) {
 658     MockDownloadItemImpl& item(AddItemToManager());
 659     EXPECT_EQ(i, item.GetId());
 660     EXPECT_CALL(item, GetStartTime())
 661         .WillRepeatedly(Return(now));
 662   }
 663
 664   // Specify states for each.
 665   EXPECT_CALL(GetMockDownloadItem(0), GetState())
 666       .WillRepeatedly(Return(DownloadItem::COMPLETE));
 667   EXPECT_CALL(GetMockDownloadItem(1), GetState())
 668       .WillRepeatedly(Return(DownloadItem::CANCELLED));
 669   EXPECT_CALL(GetMockDownloadItem(2), GetState())
 670       .WillRepeatedly(Return(DownloadItem::INTERRUPTED));
 671   EXPECT_CALL(GetMockDownloadItem(3), GetState())
 672       .WillRepeatedly(Return(DownloadItem::IN_PROGRESS));
 673
 674   // Expectations for whether or not they'll actually be removed.
 675   EXPECT_CALL(GetMockDownloadItem(0), Remove())
 676       .WillOnce(Return());
 677   EXPECT_CALL(GetMockDownloadItem(1), Remove())
 678       .WillOnce(Return());
 679   EXPECT_CALL(GetMockDownloadItem(2), Remove())
 680       .WillOnce(Return());
 681   EXPECT_CALL(GetMockDownloadItem(3), Remove())
 682       .Times(0);
 683
 684   download_manager_->RemoveAllDownloads();
 685   // Because we're mocking the download item, the Remove call doesn't
 686   // result in them being removed from the DownloadManager list.
 687 }
 688
 689 }  // namespace content