Implement chrome.downloads.erase()

chrome/browser/extensions/api/downloads/downloads_api_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 <algorithm>
 
 #include "base/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/json/json_reader.h"
 #include "base/json/json_writer.h"
@@ skipping 861 matching lines @@
   EXPECT_TRUE(download_item->GetOpened());
   ASSERT_TRUE(WaitFor(events::kOnDownloadChanged,
       base::StringPrintf("[{\"id\": %d,"
                          "  \"opened\": {"
                          "    \"previous\": false,"
                          "    \"current\": true}}]",
                          download_item->GetId())));
 }
 
 IN_PROC_BROWSER_TEST_F(DownloadExtensionTest,
-                       DownloadExtensionTest_PauseResumeCancel) {
+                       DownloadExtensionTest_PauseResumeCancelErase) {
   DownloadItem* download_item = CreateSlowTestDownload();
   ASSERT_TRUE(download_item);
 
   // Call pause().  It should succeed and the download should be paused on
   // return.
   EXPECT_TRUE(RunFunction(new DownloadsPauseFunction(),
                           DownloadItemIdAsArgList(download_item)));
   EXPECT_TRUE(download_item->IsPaused());
 
   // Calling pause() twice shouldn't be an error.
@@ skipping 42 matching lines @@
   error = RunFunctionAndReturnError(
       new DownloadsPauseFunction(), "[-42]");
   EXPECT_STREQ(download_extension_errors::kInvalidOperationError,
                error.c_str());
 
   // Calling resume on a non-existent download yields kInvalidOperationError
   error = RunFunctionAndReturnError(
       new DownloadsResumeFunction(), "[-42]");
   EXPECT_STREQ(download_extension_errors::kInvalidOperationError,
                error.c_str());
+
+  EXPECT_TRUE(RunFunction(
+      new DownloadsEraseFunction(),
+      base::StringPrintf("[{\"id\": %d}]", download_item->GetId())));
+  download_item = NULL;
+  DownloadManager::DownloadVector items;
+  GetCurrentManager()->GetAllDownloads(&items);
+  EXPECT_EQ(0UL, items.size());
 }
 
 scoped_refptr<UIThreadExtensionFunction> MockedGetFileIconFunction(
     const FilePath& expected_path,
     IconLoader::IconSize icon_size,
     const std::string& response) {
   scoped_refptr<DownloadsGetFileIconFunction> function(
       new DownloadsGetFileIconFunction());
   function->SetIconExtractorForTesting(new MockIconExtractorImpl(
       expected_path, icon_size, response));
@@ skipping 1180 matching lines @@
                           "  \"state\": {"
                           "    \"previous\": \"in_progress\","
                           "    \"current\": \"complete\"}}]",
                           result_id,
                           GetFilename("on_record.txt.crdownload").c_str(),
                           GetFilename("on_record.txt").c_str())));
   std::string disk_data;
   EXPECT_TRUE(file_util::ReadFileToString(item->GetFullPath(), &disk_data));
   EXPECT_STREQ(kPayloadData, disk_data.c_str());
 }