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      1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "net/dns/dns_query.h"
      6 
      7 #include "base/bind.h"
      8 #include "net/base/dns_util.h"
      9 #include "net/base/io_buffer.h"
     10 #include "net/dns/dns_protocol.h"
     11 #include "testing/gtest/include/gtest/gtest.h"
     12 
     13 namespace net {
     14 
     15 namespace {
     16 
     17 TEST(DnsQueryTest, Constructor) {
     18   // This includes \0 at the end.
     19   const char qname_data[] = "\x03""www""\x07""example""\x03""com";
     20   const uint8 query_data[] = {
     21     // Header
     22     0xbe, 0xef,
     23     0x01, 0x00,               // Flags -- set RD (recursion desired) bit.
     24     0x00, 0x01,               // Set QDCOUNT (question count) to 1, all the
     25                               // rest are 0 for a query.
     26     0x00, 0x00,
     27     0x00, 0x00,
     28     0x00, 0x00,
     29 
     30     // Question
     31     0x03, 'w', 'w', 'w',      // QNAME: www.example.com in DNS format.
     32     0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e',
     33     0x03, 'c', 'o', 'm',
     34     0x00,
     35 
     36     0x00, 0x01,               // QTYPE: A query.
     37     0x00, 0x01,               // QCLASS: IN class.
     38   };
     39 
     40   base::StringPiece qname(qname_data, sizeof(qname_data));
     41   DnsQuery q1(0xbeef, qname, dns_protocol::kTypeA);
     42   EXPECT_EQ(dns_protocol::kTypeA, q1.qtype());
     43 
     44   ASSERT_EQ(static_cast<int>(sizeof(query_data)), q1.io_buffer()->size());
     45   EXPECT_EQ(0, memcmp(q1.io_buffer()->data(), query_data, sizeof(query_data)));
     46   EXPECT_EQ(qname, q1.qname());
     47 
     48   base::StringPiece question(reinterpret_cast<const char*>(query_data) + 12,
     49                              21);
     50   EXPECT_EQ(question, q1.question());
     51 }
     52 
     53 TEST(DnsQueryTest, Clone) {
     54   // This includes \0 at the end.
     55   const char qname_data[] = "\x03""www""\x07""example""\x03""com";
     56   base::StringPiece qname(qname_data, sizeof(qname_data));
     57 
     58   DnsQuery q1(0, qname, dns_protocol::kTypeA);
     59   EXPECT_EQ(0, q1.id());
     60   scoped_ptr<DnsQuery> q2(q1.CloneWithNewId(42));
     61   EXPECT_EQ(42, q2->id());
     62   EXPECT_EQ(q1.io_buffer()->size(), q2->io_buffer()->size());
     63   EXPECT_EQ(q1.qtype(), q2->qtype());
     64   EXPECT_EQ(q1.question(), q2->question());
     65 }
     66 
     67 }  // namespace
     68 
     69 }  // namespace net
     70