Multicast DNS implementation (initial)

net/dns/mdns_query_unittest.cc

+// Copyright (c) 2011 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/dns/mdns_query.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace net {
+
+namespace {
+
+TEST(MDnsQueryTest, Constructor) {
+  // This includes \0 at the end.
+  const char qname_data[] = "\x03""www""\x07""example""\x03""com";
+  const uint8 query_data[] = {
+    // Header
+    0x00, 0x00,
+    0x00, 0x00,               // Flags not set.
+    0x00, 0x01,               // Set QDCOUNT (question count) to 1, all the
+                              // rest are 0 for a query.
+    0x00, 0x00,
+    0x00, 0x00,
+    0x00, 0x00,
+
+    // Question
+    0x03, 'w', 'w', 'w',      // QNAME: www.example.com in DNS format.
+    0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e',
+    0x03, 'c', 'o', 'm',
+    0x00,
+
+    0x00, 0x01,               // QTYPE: A query.
+    0x00, 0x01,               // QCLASS: IN class. Unicast bit not set.
+  };
+
+  base::StringPiece qname(qname_data, sizeof(qname_data));
+  MDnsQuery q1(qname, dns_protocol::kTypeA);
+
+  EXPECT_EQ(sizeof(query_data), q1.size());
+  EXPECT_EQ(0, memcmp(q1.io_buffer()->data(), query_data, sizeof(query_data)));
+}
+}
+}