When the download folder does not exist, change the download folder to a user's "Downloads"

chrome/browser/download/download_util_unittest.cc

 // Copyright (c) 2010 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 "chrome/browser/download/download_util.h"
 
 #if defined(OS_POSIX) && !defined(OS_MACOSX)
 #include <locale.h>
 #endif
 
+#include "base/path_service.h"
 #include "base/string_util.h"
 #include "base/test/test_file_util.h"
+#include "chrome/common/chrome_paths.h"
 #include "googleurl/src/gurl.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 #if defined(OS_WIN)
 #define JPEG_EXT L".jpg"
 #define HTML_EXT L".htm"
 #define TXT_EXT L".txt"
 #define TAR_EXT L".tar"
 #elif defined(OS_MACOSX)
 #define JPEG_EXT L".jpeg"
@@ skipping 548 matching lines @@
 };
 
 TEST(DownloadUtilTest, GenerateSafeFileName) {
   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kSafeFilenameCases); ++i) {
     FilePath path(kSafeFilenameCases[i].path);
     download_util::GenerateSafeFileName(kSafeFilenameCases[i].mime_type, &path);
     EXPECT_EQ(kSafeFilenameCases[i].expected_path, path.value()) << i;
   }
 }
 
+TEST(DownloadUtilTest, OverrideDefaultDownloadFolder) {
+  FilePath override_path(FILE_PATH_LITERAL("/koakuma/mikity/moemoe/nyannyan"));
+  FilePath original_path;
+  ASSERT_TRUE(PathService::Get(chrome::DIR_DEFAULT_DOWNLOADS, &original_path));
+  download_util::ScopedDefaultDownloadDirectory override_default_downloads;
+
+  FilePath current_path = download_util::DefaultDownloadDirectory::Get();
+  EXPECT_EQ(current_path, original_path);
+
+  override_default_downloads.Override(override_path);
+  current_path = download_util::DefaultDownloadDirectory::Get();
+  EXPECT_EQ(current_path, override_path);
+
+  override_default_downloads.UnOverride();
+  current_path = download_util::DefaultDownloadDirectory::Get();
+  EXPECT_EQ(current_path, original_path);
+}
+
 }  // namespace
-