Verify that all slice are downloaded when a stream complete

content/browser/download/download_file_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 <utility>
 #include <vector>
 
@@ skipping 963 matching lines @@
 TEST_F(DownloadFileTest, MutipleStreamsLimitedLength) {
   // The second stream has two buffers, kTestData4 and kTestData5.
   // The length limit is set to less than the length of kTestData4.
   // kTestData4 should be partially written to disk, where kTestData5 should be
   // ignored.
   int64_t stream_0_length =
       static_cast<int64_t>(strlen(kTestData1) + strlen(kTestData2));
   int64_t stream_1_length = static_cast<int64_t>(strlen(kTestData4)) - 1;
   PrepareMultipleStreams(false, stream_1_length);
 
-  EXPECT_CALL(*(observer_.get()), MockDestinationCompleted(_, _));
-
   download_file_->AddByteStream(
       std::unique_ptr<MockByteStreamReader>(input_stream_1_), stream_0_length);
   sink_callback_.Run();
   base::RunLoop().RunUntilIdle();
 
   SourceStreamTestData stream_data_0(0, stream_0_length, true);
   SourceStreamTestData stream_data_1(stream_0_length, stream_1_length, true);
   VerifySourceStreamsStates(stream_data_0);
   VerifySourceStreamsStates(stream_data_1);
   EXPECT_EQ(stream_0_length + stream_1_length, TotalBytesReceived());
 
   std::string disk_data, expected_data;
   EXPECT_TRUE(base::ReadFileToString(download_file_->FullPath(), &disk_data));
   expected_data.append(kTestData1).append(kTestData2).append(kTestData4);
   expected_data = expected_data.substr(0, stream_0_length + stream_1_length);
   EXPECT_EQ(expected_data, disk_data);
 
   // Finish the second stream.
   // TODO(xingliu): Refactor test code to deal with unfinished streams.
   scoped_refptr<net::IOBuffer> data = new net::IOBuffer(strlen(kTestData5));
   size_t size;
   input_stream_1_->Read(&data, &size);
 
+  download_file_->Cancel();
   DestroyDownloadFile(0, false);
 }
 
 }  // namespace content