text: // Copyright (c) 2012-2015 The Bitcoin Core developers
  // Distributed under the MIT software license, see the accompanying
  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  #include "addrman.h"
  #include "test/test_popbit.h"
  #include <string>
  #include <boost/test/unit_test.hpp>
  
  #include "random.h"
  
  using namespace std;
  
  class CAddrManTest : public CAddrMan{};
  
  BOOST_FIXTURE_TEST_SUITE(addrman_tests, BasicTestingSetup)
  
  BOOST_AUTO_TEST_CASE(addrman_simple)
  {
      CAddrManTest addrman;
  
      // Set addrman addr placement to be deterministic.
      addrman.MakeDeterministic();
  
      CNetAddr source = CNetAddr("252.2.2.2:8333");
  
      // Test 1: Does Addrman respond correctly when empty.
      BOOST_CHECK(addrman.size() == 0);
      CAddrInfo addr_null = addrman.Select();
      BOOST_CHECK(addr_null.ToString() == "[::]:0");
  
      // Test 2: Does Addrman::Add work as expected.
      CService addr1 = CService("250.1.1.1:8333");
      addrman.Add(CAddress(addr1), source);
      BOOST_CHECK(addrman.size() == 1);
      CAddrInfo addr_ret1 = addrman.Select();
      BOOST_CHECK(addr_ret1.ToString() == "250.1.1.1:8333");
  
      // Test 3: Does IP address deduplication work correctly. 
      //  Expected dup IP should not be added.
      CService addr1_dup = CService("250.1.1.1:8333");
      addrman.Add(CAddress(addr1_dup), source);
      BOOST_CHECK(addrman.size() == 1);
  
  
      // Test 5: New table has one addr and we add a diff addr we should
      //  have two addrs.
      CService addr2 = CService("250.1.1.2:8333");
      addrman.Add(CAddress(addr2), source);
      BOOST_CHECK(addrman.size() == 2);
  
      // Test 6: AddrMan::Clear() should empty the new table. 
      addrman.Clear();
      BOOST_CHECK(addrman.size() == 0);
      CAddrInfo addr_null2 = addrman.Select();
      BOOST_CHECK(addr_null2.ToString() == "[::]:0");
  }
  
  BOOST_AUTO_TEST_CASE(addrman_ports)
  {
      CAddrManTest addrman;
  
      // Set addrman addr placement to be deterministic.
      addrman.MakeDeterministic();
  
      CNetAddr source = CNetAddr("252.2.2.2:8333");
  
      BOOST_CHECK(addrman.size() == 0);
  
      // Test 7; Addr with same IP but diff port does not replace existing addr.
      CService addr1 = CService("250.1.1.1:8333");
      addrman.Add(CAddress(addr1), source);
      BOOST_CHECK(addrman.size() == 1);
  
      CService addr1_port = CService("250.1.1.1:8334");
      addrman.Add(CAddress(addr1_port), source);
      BOOST_CHECK(addrman.size() == 1);
      CAddrInfo addr_ret2 = addrman.Select();
      BOOST_CHECK(addr_ret2.ToString() == "250.1.1.1:8333");
  
      // Test 8: Add same IP but diff port to tried table, it doesn't get added.
      //  Perhaps this is not ideal behavior but it is the current behavior.
      addrman.Good(CAddress(addr1_port));
      BOOST_CHECK(addrman.size() == 1);
      bool newOnly = true;
      CAddrInfo addr_ret3 = addrman.Select(newOnly);
      BOOST_CHECK(addr_ret3.ToString() == "250.1.1.1:8333");
  }
  
  
  BOOST_AUTO_TEST_CASE(addrman_select)
  {
      CAddrManTest addrman;
  
      // Set addrman addr placement to be deterministic.
      addrman.MakeDeterministic();
  
      CNetAddr source = CNetAddr("252.2.2.2:8333");
  
      // Test 9: Select from new with 1 addr in new.
      CService addr1 = CService("250.1.1.1:8333");
      addrman.Add(CAddress(addr1), source);
      BOOST_CHECK(addrman.size() == 1);
  
      bool newOnly = true;
      CAddrInfo addr_ret1 = addrman.Select(newOnly);
      BOOST_CHECK(addr_ret1.ToString() == "250.1.1.1:8333");
  
  
      // Test 10: move addr to tried, select from new expected nothing returned.
      addrman.Good(CAddress(addr1));
      BOOST_CHECK(addrman.size() == 1);
      CAddrInfo addr_ret2 = addrman.Select(newOnly);
      BOOST_CHECK(addr_ret2.ToString() == "[::]:0");
  
      CAddrInfo addr_ret3 = addrman.Select();
      BOOST_CHECK(addr_ret3.ToString() == "250.1.1.1:8333");
  }
  
  BOOST_AUTO_TEST_CASE(addrman_new_collisions)
  {
      CAddrManTest addrman;
  
      // Set addrman addr placement to be deterministic.
      addrman.MakeDeterministic();
  
      CNetAddr source = CNetAddr("252.2.2.2:8333");
  
      BOOST_CHECK(addrman.size() == 0);
  
      for (unsigned int i = 1; i < 4; i++){
          CService addr = CService("250.1.1."+boost::to_string(i));
          addrman.Add(CAddress(addr), source);
  
          //Test 11: No collision in new table yet.
          BOOST_CHECK(addrman.size() == i);
      }
  
      //Test 12: new table collision!
      CService addr1 = CService("250.1.1.4");
      addrman.Add(CAddress(addr1), source);
      BOOST_CHECK(addrman.size() == 3);
  
      CService addr2 = CService("250.1.1.5");
      addrman.Add(CAddress(addr2), source);
      BOOST_CHECK(addrman.size() == 4);
  }
  
  BOOST_AUTO_TEST_CASE(addrman_tried_collisions)
  {
      CAddrManTest addrman;
  
      // Set addrman addr placement to be deterministic.
      addrman.MakeDeterministic();
  
      CNetAddr source = CNetAddr("252.2.2.2:8333");
  
      BOOST_CHECK(addrman.size() == 0);
  
      for (unsigned int i = 1; i < 75; i++){
          CService addr = CService("250.1.1."+boost::to_string(i));
          addrman.Add(CAddress(addr), source);
          addrman.Good(CAddress(addr));
  
          //Test 13: No collision in tried table yet.
          BOOST_TEST_MESSAGE(addrman.size());
          BOOST_CHECK(addrman.size() == i);
      }
  
      //Test 14: tried table collision!
      CService addr1 = CService("250.1.1.76");
      addrman.Add(CAddress(addr1), source);
      BOOST_CHECK(addrman.size() == 74);
  
      CService addr2 = CService("250.1.1.77");
      addrman.Add(CAddress(addr2), source);
      BOOST_CHECK(addrman.size() == 75);
  }
  
  
  BOOST_AUTO_TEST_SUITE_END()