Update the received slices vector when stream is written to disk

content/browser/download/parallel_download_utils_unittest.cc

 // Copyright 2017 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 "content/browser/download/parallel_download_utils.h"
 
 #include "content/public/browser/download_save_info.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace content {
@@ skipping 21 matching lines @@
   EXPECT_EQ(1500, slice.offset);
   EXPECT_EQ(DownloadSaveInfo::kLengthFullContent, slice.received_bytes);
 
   // Create a new gap at the beginning.
   slices.erase(slices.begin());
   slice = FindNextSliceToDownload(slices);
   EXPECT_EQ(0, slice.offset);
   EXPECT_EQ(500, slice.received_bytes);
 }
 
+TEST(ParallelDownloadUtilsTest, AddReceivedSliceToSortedArray) {
+  std::vector<DownloadItem::ReceivedSlice> slices;
+  DownloadItem::ReceivedSlice slice1(500, 500);
+  EXPECT_EQ(0, AddReceivedSliceToSortedArray(slice1, slices));
+  EXPECT_EQ(1u, slices.size());
+  EXPECT_EQ(slice1, slices[0]);
+
+  DownloadItem::ReceivedSlice slice2(1000, 400);
+  EXPECT_EQ(1, AddReceivedSliceToSortedArray(slice2, slices));
+  EXPECT_EQ(2u, slices.size());
+  EXPECT_EQ(slice1, slices[0]);
+  EXPECT_EQ(slice2, slices[1]);
+
+  DownloadItem::ReceivedSlice slice3(0, 50);
+  EXPECT_EQ(0, AddReceivedSliceToSortedArray(slice3, slices));
+  EXPECT_EQ(3u, slices.size());
+  EXPECT_EQ(slice3, slices[0]);
+  EXPECT_EQ(slice1, slices[1]);
+  EXPECT_EQ(slice2, slices[2]);

[xingliu, 2017/03/07 22:18:13]

nit%: Can we add another case here that inserts something in the middle?

[qinmin, 2017/03/08 18:46:33]

Done.

+}
+
 }  // namespace content