Use manually constructed IPv6 socket addresses for tests, rather than system ...

net/base/address_list.h

 // Copyright (c) 2006-2008 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.
 
 #ifndef NET_BASE_ADDRESS_LIST_H_
 #define NET_BASE_ADDRESS_LIST_H_
 
 #include "base/ref_counted.h"
 
 struct addrinfo;
 
 namespace net {
 
 // An AddressList object contains a linked list of addrinfo structures.  This
 // class is designed to be copied around by value.
 class AddressList {
  public:
+  // Constructs an empty address list.
+  AddressList() {}
+
   // Adopt the given addrinfo list in place of the existing one if any.  This
   // hands over responsibility for freeing the addrinfo list to the AddressList
   // object.
   void Adopt(struct addrinfo* head);
 
   // Copies the given addrinfo rather than adopting it.
   void Copy(const struct addrinfo* head);
 
   // Sets the port of all addresses in the list to |port| (that is the
   // sin[6]_port field for the sockaddrs).
   void SetPort(int port);
 
   // Retrieves the port number of the first sockaddr in the list. (If SetPort()
   // was previously used on this list, then all the addresses will have this
   // same port number.)
   int GetPort() const;
 
   // Sets the address to match |src|, and have each sockaddr's port be |port|.
   // If |src| already has the desired port this operation is cheap (just adds
   // a reference to |src|'s data.) Otherwise we will make a copy.
   void SetFrom(const AddressList& src, int port);
 
   // Clears all data from this address list. This leaves the list in the same
   // empty state as when first constructed.
   void Reset();
 
+  // Used by unit-tests to manually set the TCP socket address.
+  static AddressList CreateIPv6Address(unsigned char data[16]);
+
   // Get access to the head of the addrinfo list.
   const struct addrinfo* head() const { return data_->head; }
 
  private:
   struct Data : public base::RefCountedThreadSafe<Data> {
     Data(struct addrinfo* ai, bool is_system_created)
         : head(ai), is_system_created(is_system_created) {}
     ~Data();
     struct addrinfo* head;
 
     // Indicates which free function to use for |head|.
     bool is_system_created;
   };
+
+  explicit AddressList(Data* data) : data_(data) {}
+
   scoped_refptr<Data> data_;
 };
 
 }  // namespace net
 
 #endif  // NET_BASE_ADDRESS_LIST_H_