Rewrite download manager unit to be actual unit tests.

content/browser/download/download_item_impl_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/message_loop.h"
 #include "base/stl_util.h"
 #include "base/threading/thread.h"
 #include "content/browser/download/byte_stream.h"
 #include "content/browser/download/download_create_info.h"
 #include "content/browser/download/download_file_manager.h"
@@ skipping 532 matching lines @@
                   AllOf(item,
                         Property(&DownloadItem::GetFullPath, final_path),
                         Property(&DownloadItem::GetTargetFilePath,
                                  final_path))));
   item->OnDownloadCompleting(file_manager.get());
   RunAllPendingInMessageLoops();
   ::testing::Mock::VerifyAndClearExpectations(file_manager.get());
   ::testing::Mock::VerifyAndClearExpectations(mock_delegate());
 }
 
+TEST_F(DownloadItemTest, Interrupted) {
+  DownloadItem* item = CreateDownloadItem(DownloadItem::IN_PROGRESS);
+
+  int64 size = 1022;
+  const std::string hash_state("Live beef");
+  const content::DownloadInterruptReason reason(
+      content::DOWNLOAD_INTERRUPT_REASON_FILE_ACCESS_DENIED);
+
+  // Confirm interrupt sets state properly.
+  item->Interrupted(size, hash_state, reason);
+  EXPECT_EQ(size, item->GetReceivedBytes());
+  EXPECT_EQ(DownloadItem::INTERRUPTED, item->GetState());
+  EXPECT_EQ(hash_state, item->GetHashState());
+  EXPECT_EQ(reason, item->GetLastReason());
+
+  // Cancel should result in no change.
+  item->Cancel(true);
+  EXPECT_EQ(size, item->GetReceivedBytes());
+  EXPECT_EQ(DownloadItem::INTERRUPTED, item->GetState());
+  EXPECT_EQ(hash_state, item->GetHashState());
+  EXPECT_EQ(content::DOWNLOAD_INTERRUPT_REASON_USER_CANCELED,
+            item->GetLastReason());
+}
+
+TEST_F(DownloadItemTest, Canceled) {
+  DownloadItem* item = CreateDownloadItem(DownloadItem::IN_PROGRESS);
+
+  // Confirm cancel sets state properly.
+  EXPECT_CALL(*mock_delegate(), DownloadCancelled(item));
+  item->Cancel(true);
+  EXPECT_EQ(DownloadItem::CANCELLED, item->GetState());
+}
+
+TEST_F(DownloadItemTest, FileRemoved) {
+  DownloadItem* item = CreateDownloadItem(DownloadItem::IN_PROGRESS);
+
+  EXPECT_EQ(false, item->GetFileExternallyRemoved());
+  item->OnDownloadedFileRemoved();
+  EXPECT_EQ(true, item->GetFileExternallyRemoved());
+}
+
 TEST(MockDownloadItem, Compiles) {
   MockDownloadItem mock_item;
 }