Noissue - Fix sign comparison warnings in tests.

test/ReferrerMapping.cpp

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2016 Eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include <AdblockPlus.h>
 #include <gtest/gtest.h>
 
 TEST(ReferrerMappingTest, EmptyReferrerChain)
 {
   AdblockPlus::ReferrerMapping referrerMapping;
   std::vector<std::string> referrerChain =
     referrerMapping.BuildReferrerChain("first");
-  ASSERT_EQ(1, referrerChain.size());
+  ASSERT_EQ(1u, referrerChain.size());
   ASSERT_EQ("first", referrerChain[0]);
 }
 
 TEST(ReferrerMappingTest, TwoElementReferrerChain)
 {
   AdblockPlus::ReferrerMapping referrerMapping;
   referrerMapping.Add("second", "first");
   std::vector<std::string> referrerChain =
     referrerMapping.BuildReferrerChain("second");
-  ASSERT_EQ(2, referrerChain.size());
+  ASSERT_EQ(2u, referrerChain.size());
   ASSERT_EQ("first", referrerChain[0]);
   ASSERT_EQ("second", referrerChain[1]);
 }
 
 TEST(ReferrerMappingTest, TenElementReferrerChain)
 {
   AdblockPlus::ReferrerMapping referrerMapping;
   referrerMapping.Add("second", "first");
   referrerMapping.Add("third", "second");
   referrerMapping.Add("fourth", "third");
   referrerMapping.Add("fifth", "fourth");
   referrerMapping.Add("sixth", "fifth");
   referrerMapping.Add("seventh", "sixth");
   referrerMapping.Add("eighth", "seventh");
   referrerMapping.Add("ninth", "eighth");
   referrerMapping.Add("tenth", "ninth");
   std::vector<std::string> referrerChain =
     referrerMapping.BuildReferrerChain("tenth");
-  ASSERT_EQ(10, referrerChain.size());
+  ASSERT_EQ(10u, referrerChain.size());
   ASSERT_EQ("first", referrerChain[0]);
   ASSERT_EQ("second", referrerChain[1]);
   ASSERT_EQ("third", referrerChain[2]);
   ASSERT_EQ("fourth", referrerChain[3]);
   ASSERT_EQ("fifth", referrerChain[4]);
   ASSERT_EQ("sixth", referrerChain[5]);
   ASSERT_EQ("seventh", referrerChain[6]);
   ASSERT_EQ("eighth", referrerChain[7]);
   ASSERT_EQ("ninth", referrerChain[8]);
   ASSERT_EQ("tenth", referrerChain[9]);
 }
 
 TEST(ReferrerMappingTest, CacheOnlyFiveUrls)
 {
   AdblockPlus::ReferrerMapping referrerMapping(5);
   referrerMapping.Add("second", "first");
   referrerMapping.Add("third", "second");
   referrerMapping.Add("fourth", "third");
   referrerMapping.Add("fifth", "fourth");
   referrerMapping.Add("sixth", "fifth");
   referrerMapping.Add("seventh", "sixth");
   std::vector<std::string> referrerChain =
     referrerMapping.BuildReferrerChain("seventh");
-  ASSERT_EQ(6, referrerChain.size());
+  ASSERT_EQ(6u, referrerChain.size());
   ASSERT_EQ("second", referrerChain[0]);
   ASSERT_EQ("third", referrerChain[1]);
   ASSERT_EQ("fourth", referrerChain[2]);
   ASSERT_EQ("fifth", referrerChain[3]);
   ASSERT_EQ("sixth", referrerChain[4]);
   ASSERT_EQ("seventh", referrerChain[5]);
 }