Implement SDCH Dictionary domain matching as per RFC 2965

net/base/sdch_dictionary_unittest.cc

 // Copyright 2015 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/base/sdch_dictionary.h"
 
 #include <set>
 #include <string>
 
 #include "net/base/sdch_problem_codes.h"
@@ skipping 98 matching lines @@
 
   // Make sure adding characters to path will also fail.
   EXPECT_FALSE(PathMatch("/searching", "/search/"));
   EXPECT_FALSE(PathMatch("/searching", "/search"));
 
   // Make sure we're case sensitive.
   EXPECT_FALSE(PathMatch("/ABC", "/abc"));
   EXPECT_FALSE(PathMatch("/abc", "/ABC"));
 }
 
+TEST(SdchDictionaryTest, DomainMatch) {
+  bool (*DomainMatch)(const GURL& url, const std::string& restriction) =
+      SdchDictionary::DomainMatch;
+  EXPECT_TRUE(DomainMatch(GURL("http://example.com"), "example.com"));
+  EXPECT_TRUE(DomainMatch(GURL("http://www.example.com"), ".example.com"));
+
+  // Trailing dot handling
+  EXPECT_TRUE(DomainMatch(GURL("http://example.com./"), "example.com"));
+  EXPECT_TRUE(DomainMatch(GURL("http://example.com/"), "example.com."));
+
+  EXPECT_FALSE(DomainMatch(GURL("http://www.example.com"), "example.com"));
+  EXPECT_FALSE(DomainMatch(GURL("http://badexample.com"), "example.com"));
+  EXPECT_FALSE(DomainMatch(GURL("http://badexample.com"), ".example.com"));
+  EXPECT_FALSE(DomainMatch(GURL("http://example.com.tld"), "example.com"));
+  EXPECT_FALSE(DomainMatch(GURL("http://example.com.tld"), ".example.com"));
+}
+
 TEST(SdchDictionaryTest, Expired) {
   EXPECT_TRUE(
       SdchDictionary("xyzzy", 0u, "ch", "sh", GURL("http://www.example.com"),
                      "www.example.com", "/url",
                      base::Time::Now() - base::TimeDelta::FromSeconds(1),
                      std::set<int>()).Expired());
   EXPECT_FALSE(
       SdchDictionary("xyzzy", 0u, "ch", "sh", GURL("http://www.example.com"),
                      "www.example.com", "/url",
                      base::Time::Now() + base::TimeDelta::FromSeconds(1),
                      std::set<int>()).Expired());
 }
 
 }  // namespace net