Use previous target path when resuming a download after crash

chrome/browser/download/download_target_determiner_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 <stddef.h>
 #include <stdint.h>
 
 #include "base/at_exit.h"
 #include "base/files/file_path.h"
 #include "base/files/scoped_temp_dir.h"
@@ skipping 1600 matching lines @@
   EXPECT_CALL(*delegate(), NotifyExtensions(_, _, _))
       .Times(test_case.test_type == AUTOMATIC ? 1 : 0);
   EXPECT_CALL(*delegate(), ReserveVirtualPath(_, expected_path, false, _, _));
   EXPECT_CALL(*delegate(), PromptUserForDownloadPath(_, _, _))
       .Times(0);
   EXPECT_CALL(*delegate(), DetermineLocalPath(_, expected_path, _));
   EXPECT_CALL(*delegate(), CheckDownloadUrl(_, expected_path, _));
   RunTestCase(test_case, GetPathInDownloadDir(kInitialPath), item.get());
 }
 
+// Test that resuming a download will use the target file path if it is
+// provided.
+TEST_F(DownloadTargetDeterminerTest, ResumedWithTagetFilePath) {
+  const base::FilePath::CharType* kInitialPath =
+      FILE_PATH_LITERAL("some_path/bar.txt");
+  const DownloadTestCase kResumedDownload = {
+      AUTOMATIC,
+      content::DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS,
+      DownloadFileType::NOT_DANGEROUS,
+      "http://example.com/foo.txt",
+      "",
+      FILE_PATH_LITERAL(""),
+      FILE_PATH_LITERAL("target-foo.txt"),
+      DownloadItem::TARGET_DISPOSITION_OVERWRITE,
+      EXPECT_CRDOWNLOAD};
+
+  const DownloadTestCase& test_case = kResumedDownload;
+  base::FilePath expected_path =
+      GetPathInDownloadDir(test_case.expected_local_path);
+  std::unique_ptr<content::MockDownloadItem> item(
+      CreateActiveDownloadItem(0, test_case));
+  ON_CALL(*item.get(), GetTargetFilePath())
+      .WillByDefault(ReturnRefOfCopy(expected_path));
+  EXPECT_CALL(*delegate(), NotifyExtensions(_, _, _)).Times(0);
+  EXPECT_CALL(*delegate(), ReserveVirtualPath(_, expected_path, false, _, _));
+  EXPECT_CALL(*delegate(), PromptUserForDownloadPath(_, _, _)).Times(0);
+  EXPECT_CALL(*delegate(), DetermineLocalPath(_, expected_path, _));
+  EXPECT_CALL(*delegate(), CheckDownloadUrl(_, expected_path, _));
+  RunTestCase(test_case, GetPathInDownloadDir(kInitialPath), item.get());
+}
+
 // Prompting behavior for resumed downloads is based on the last interrupt
 // reason. If the reason indicates that the target path may not be suitable for
 // the download (ACCESS_DENIED, NO_SPACE, etc..), then the user should be
 // prompted, and not otherwise. These test cases result in prompting since the
 // error is set to NO_SPACE.
 TEST_F(DownloadTargetDeterminerTest, ResumedWithPrompt) {
   // All test cases run with GetPathInDownloadDir(kInitialPath) as the inital
   // path.
   const base::FilePath::CharType* kInitialPath =
       FILE_PATH_LITERAL("some_path/bar.txt");
@@ skipping 529 matching lines @@
   EXPECT_CALL(mock_plugin_filter_, MockPluginAvailable(browser_plugin.path()))
       .WillRepeatedly(Return(false));
   target_info = RunDownloadTargetDeterminer(
       GetPathInDownloadDir(kInitialPath), item.get());
   EXPECT_FALSE(target_info->is_filetype_handled_safely);
 }
 
 #endif  // BUILDFLAG(ENABLE_PLUGINS)
 
 }  // namespace