Avoid duplicates in SPDY's write blocked list.

net/quic/quic_write_blocked_list_test.cc

 // Copyright 2014 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 "net/quic/quic_write_blocked_list.h"
 
 #include "net/quic/test_tools/quic_test_utils.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace net {
 namespace test {
 namespace {
 
 TEST(QuicWriteBlockedListTest, PriorityOrder) {
-  QuicWriteBlockedList write_blocked_list;
+  QuicWriteBlockedList write_blocked_list(true);
 
   // Mark streams blocked in roughly reverse priority order, and
   // verify that streams are sorted.
   write_blocked_list.PushBack(40,
                               QuicWriteBlockedList::kLowestPriority);
   write_blocked_list.PushBack(23,
                               QuicWriteBlockedList::kHighestPriority);
   write_blocked_list.PushBack(17,
                               QuicWriteBlockedList::kHighestPriority);
   write_blocked_list.PushBack(kHeadersStreamId,
@@ skipping 13 matching lines @@
   EXPECT_EQ(17u, write_blocked_list.PopFront());
   // Low priority stream appears last.
   EXPECT_EQ(40u, write_blocked_list.PopFront());
 
   EXPECT_EQ(0u, write_blocked_list.NumBlockedStreams());
   EXPECT_FALSE(write_blocked_list.HasWriteBlockedCryptoOrHeadersStream());
   EXPECT_FALSE(write_blocked_list.HasWriteBlockedDataStreams());
 }
 
 TEST(QuicWriteBlockedListTest, CryptoStream) {
-  QuicWriteBlockedList write_blocked_list;
+  QuicWriteBlockedList write_blocked_list(true);
   write_blocked_list.PushBack(kCryptoStreamId,
                               QuicWriteBlockedList::kHighestPriority);
 
   EXPECT_EQ(1u, write_blocked_list.NumBlockedStreams());
   EXPECT_TRUE(write_blocked_list.HasWriteBlockedCryptoOrHeadersStream());
   EXPECT_EQ(kCryptoStreamId, write_blocked_list.PopFront());
   EXPECT_EQ(0u, write_blocked_list.NumBlockedStreams());
   EXPECT_FALSE(write_blocked_list.HasWriteBlockedCryptoOrHeadersStream());
 }
 
 TEST(QuicWriteBlockedListTest, HeadersStream) {
-  QuicWriteBlockedList write_blocked_list;
+  QuicWriteBlockedList write_blocked_list(true);
   write_blocked_list.PushBack(kHeadersStreamId,
                               QuicWriteBlockedList::kHighestPriority);
 
   EXPECT_EQ(1u, write_blocked_list.NumBlockedStreams());
   EXPECT_TRUE(write_blocked_list.HasWriteBlockedCryptoOrHeadersStream());
   EXPECT_EQ(kHeadersStreamId, write_blocked_list.PopFront());
   EXPECT_EQ(0u, write_blocked_list.NumBlockedStreams());
   EXPECT_FALSE(write_blocked_list.HasWriteBlockedCryptoOrHeadersStream());
 }
 
 TEST(QuicWriteBlockedListTest, VerifyHeadersStream) {
-  QuicWriteBlockedList write_blocked_list;
+  QuicWriteBlockedList write_blocked_list(true);
   write_blocked_list.PushBack(5,
                               QuicWriteBlockedList::kHighestPriority);
   write_blocked_list.PushBack(kHeadersStreamId,
                               QuicWriteBlockedList::kHighestPriority);
 
   EXPECT_EQ(2u, write_blocked_list.NumBlockedStreams());
   EXPECT_TRUE(write_blocked_list.HasWriteBlockedCryptoOrHeadersStream());
   EXPECT_TRUE(write_blocked_list.HasWriteBlockedDataStreams());
   // In newer QUIC versions, there is a headers stream which is
   // higher priority than data streams.
   EXPECT_EQ(kHeadersStreamId, write_blocked_list.PopFront());
   EXPECT_EQ(5u, write_blocked_list.PopFront());
   EXPECT_EQ(0u, write_blocked_list.NumBlockedStreams());
   EXPECT_FALSE(write_blocked_list.HasWriteBlockedCryptoOrHeadersStream());
   EXPECT_FALSE(write_blocked_list.HasWriteBlockedDataStreams());
 }
 
 TEST(QuicWriteBlockedListTest, NoDuplicateEntries) {
   // Test that QuicWriteBlockedList doesn't allow duplicate entries.
-  QuicWriteBlockedList write_blocked_list;
+  QuicWriteBlockedList write_blocked_list(true);
 
   // Try to add a stream to the write blocked list multiple times at the same
   // priority.
   const QuicStreamId kBlockedId = kClientDataStreamId1;
   write_blocked_list.PushBack(kBlockedId,
                               QuicWriteBlockedList::kHighestPriority);
   write_blocked_list.PushBack(kBlockedId,
                               QuicWriteBlockedList::kHighestPriority);
   write_blocked_list.PushBack(kBlockedId,
                               QuicWriteBlockedList::kHighestPriority);
 
   // This should only result in one blocked stream being added.
   EXPECT_EQ(1u, write_blocked_list.NumBlockedStreams());
   EXPECT_TRUE(write_blocked_list.HasWriteBlockedDataStreams());
 
   // There should only be one stream to pop off the front.
   EXPECT_EQ(kBlockedId, write_blocked_list.PopFront());
   EXPECT_EQ(0u, write_blocked_list.NumBlockedStreams());
   EXPECT_FALSE(write_blocked_list.HasWriteBlockedDataStreams());
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace net