Added read-only file error test.

chrome/browser/download/download_browsertest.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/bind.h"
 #include "base/bind_helpers.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/path_service.h"
@@ skipping 663 matching lines @@
 
     // Check the contents.
     EXPECT_EQ(value, file_contents);
     if (memcmp(file_contents.c_str(), value.c_str(), expected_size) != 0)
       return false;
 
     return true;
   }
 
   // Attempts to download a file, based on information in |download_info|.
+  // If a Select File dialog opens, will automatically choose the default.
   void DownloadFileCheckErrors(const DownloadInfo& download_info) {
     ASSERT_TRUE(test_server()->Start());
     std::vector<DownloadItem*> download_items;
     GetDownloads(browser(), &download_items);
     ASSERT_TRUE(download_items.empty());
 
     std::string server_path = "files/downloads/";
     server_path += download_info.url_name;
     GURL url = test_server()->GetURL(server_path);
     ASSERT_TRUE(url.is_valid());
 
+    NullSelectFile(browser());  // Needed for read-only tests.
+
     DownloadManager* download_manager = DownloadManagerForBrowser(browser());
     scoped_ptr<DownloadTestObserver> observer(
         new DownloadTestObserver(
             download_manager,
             1,
             download_info.reason == DOWNLOAD_INTERRUPT_REASON_NONE ?
                 DownloadItem::COMPLETE :  // Really done
                 DownloadItem::INTERRUPTED,
-            true,                   // Bail on select file
+            false,                        // Don't finish on select file
             DownloadTestObserver::ON_DANGEROUS_DOWNLOAD_FAIL));
 
     if (download_info.download_method == DOWNLOAD_DIRECT) {
       // Go directly to download.
       WebContents* web_contents = browser()->GetSelectedWebContents();
       ASSERT_TRUE(web_contents);
       DownloadSaveInfo save_info;
       save_info.prompt_for_save_location = false;
 
       DownloadManagerForBrowser(browser())->DownloadUrl(
@@ skipping 12 matching lines @@
     download_items.clear();
     GetDownloads(browser(), &download_items);
     size_t item_count = download_info.show_download_item ? 1 : 0;
     ASSERT_EQ(item_count, download_items.size());
 
     if (download_info.show_download_item) {
       DownloadItem* item = download_items[0];
       ASSERT_EQ(url, item->GetOriginalUrl());
 
       ASSERT_EQ(download_info.reason, item->GetLastReason());
+
+      if (item->GetLastReason() == DOWNLOAD_INTERRUPT_REASON_NONE) {
+        // Clean up the file, in case it ended up in the My Documents folder.
+        FilePath destination_folder = GetDownloadDirectory(browser());
+        FilePath my_downloaded_file = item->GetTargetFilePath();
+        EXPECT_TRUE(file_util::PathExists(my_downloaded_file));
+        EXPECT_TRUE(file_util::Delete(my_downloaded_file, false));
+
+        // If it's not where we asked it to be, it should be in the
+        // My Documents folder.
+        if (my_downloaded_file.value().find(destination_folder.value()) ==
+            std::string::npos) {
+          FilePath my_docs_folder;
+          EXPECT_TRUE(PathService::Get(chrome::DIR_USER_DOCUMENTS,
+                                       &my_docs_folder));
+          EXPECT_EQ(0u,
+                    my_downloaded_file.value().find(my_docs_folder.value()));
+        }
+      }
     }
   }
 
+  // Attempts to download a file to a read-only folder, based on information
+  // in |download_info|.
+  void DownloadFileToReadonlyFolder(const DownloadInfo& download_info) {
+    ASSERT_TRUE(InitialSetup(false));  // Creates temporary download folder.
+
+    // Make the test folder unwritable.
+    FilePath destination_folder = GetDownloadDirectory(browser());
+    DVLOG(1) << " " << __FUNCTION__ << "()"
+             << " folder = '" << destination_folder.value() << "'";
+    size_t perm_length = 0;
+    void* original_permissions =
+        file_util::GetPermissionInfo(destination_folder, &perm_length);
+    EXPECT_TRUE(original_permissions != NULL);
+    EXPECT_TRUE(file_util::MakeFileUnwritable(destination_folder));
+
+    DownloadFileCheckErrors(download_info);
+
+    EXPECT_TRUE(file_util::RestorePermissionInfo(destination_folder,
+                                                 original_permissions,
+                                                 perm_length));
+  }
  private:
   // Location of the test data.
   FilePath test_dir_;
 
   // Location of the downloads directory for these tests
   ScopedTempDir downloads_directory_;
 };
 
 // NOTES:
 //
@@ skipping 1325 matching lines @@
     "zip_file_not_found.zip",
     DOWNLOAD_NAVIGATE,
     DOWNLOAD_INTERRUPT_REASON_SERVER_FAILED,
     false
   };
 
   // Do initial setup.
   ASSERT_TRUE(InitialSetup(false));
   DownloadFileCheckErrors(download_info);
 }
+
+IN_PROC_BROWSER_TEST_F(DownloadTest, DownloadErrorReadonlyFolderDirect) {
+  DownloadInfo download_info = {
+    "a_zip_file.zip",
+    DOWNLOAD_DIRECT,
+    // This passes because we switch to the My Documents folder.
+    DOWNLOAD_INTERRUPT_REASON_NONE,
+    true
+  };
+
+  DownloadFileToReadonlyFolder(download_info);
+}
+
+IN_PROC_BROWSER_TEST_F(DownloadTest, DownloadErrorReadonlyFolderNavigate) {
+  DownloadInfo download_info = {
+    "a_zip_file.zip",
+    DOWNLOAD_NAVIGATE,
+    // This passes because we switch to the My Documents folder.
+    DOWNLOAD_INTERRUPT_REASON_NONE,
+    true
+  };
+
+  DownloadFileToReadonlyFolder(download_info);
+}