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Merge pull request #6720
1534d9a
Creates unittests for addrman, makes addrman testable. Adds several unittests for addrman to verify it works as expected. Makes small modifications to addrman to allow deterministic and targeted tests. (EthanHeilman)
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commit
d479311dba
@ -36,6 +36,7 @@ GENERATED_TEST_FILES = $(JSON_TEST_FILES:.json=.json.h) $(RAW_TEST_FILES:.raw=.r
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BITCOIN_TESTS =\
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test/arith_uint256_tests.cpp \
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test/bignum.h \
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test/addrman_tests.cpp \
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test/alert_tests.cpp \
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test/allocator_tests.cpp \
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test/base32_tests.cpp \
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@ -329,13 +329,17 @@ void CAddrMan::Attempt_(const CService& addr, int64_t nTime)
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info.nAttempts++;
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}
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CAddrInfo CAddrMan::Select_()
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CAddrInfo CAddrMan::Select_(bool newOnly)
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{
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if (size() == 0)
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return CAddrInfo();
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if (newOnly && nNew == 0)
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return CAddrInfo();
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// Use a 50% chance for choosing between tried and new table entries.
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if (nTried > 0 && (nNew == 0 || GetRandInt(2) == 0)) {
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if (!newOnly &&
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(nTried > 0 && (nNew == 0 || GetRandInt(2) == 0))) {
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// use a tried node
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double fChanceFactor = 1.0;
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while (1) {
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@ -22,6 +22,8 @@
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*/
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class CAddrInfo : public CAddress
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{
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public:
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//! last try whatsoever by us (memory only)
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int64_t nLastTry;
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@ -230,8 +232,8 @@ protected:
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//! Mark an entry as attempted to connect.
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void Attempt_(const CService &addr, int64_t nTime);
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//! Select an address to connect to.
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CAddrInfo Select_();
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//! Select an address to connect to, if newOnly is set to true, only the new table is selected from.
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CAddrInfo Select_(bool newOnly);
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#ifdef DEBUG_ADDRMAN
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//! Perform consistency check. Returns an error code or zero.
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@ -532,13 +534,13 @@ public:
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/**
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* Choose an address to connect to.
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*/
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CAddrInfo Select()
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CAddrInfo Select(bool newOnly = false)
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{
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CAddrInfo addrRet;
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{
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LOCK(cs);
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Check();
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addrRet = Select_();
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addrRet = Select_(newOnly);
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Check();
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}
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return addrRet;
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@ -567,6 +569,12 @@ public:
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Check();
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}
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}
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//! Ensure that bucket placement is always the same for testing purposes.
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void MakeDeterministic(){
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nKey.SetNull(); //Do not use outside of tests.
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}
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};
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#endif // BITCOIN_ADDRMAN_H
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180
src/test/addrman_tests.cpp
Normal file
180
src/test/addrman_tests.cpp
Normal file
@ -0,0 +1,180 @@
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// Copyright (c) 2012-2013 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include "addrman.h"
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#include "test/test_bitcoin.h"
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#include <string>
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#include <boost/test/unit_test.hpp>
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#include "random.h"
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using namespace std;
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class CAddrManTest : public CAddrMan{};
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BOOST_FIXTURE_TEST_SUITE(addrman_tests, BasicTestingSetup)
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BOOST_AUTO_TEST_CASE(addrman_simple)
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{
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CAddrManTest addrman;
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// Set addrman addr placement to be deterministic.
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addrman.MakeDeterministic();
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CNetAddr source = CNetAddr("252.2.2.2:8333");
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// Test 1: Does Addrman respond correctly when empty.
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BOOST_CHECK(addrman.size() == 0);
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CAddrInfo addr_null = addrman.Select();
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BOOST_CHECK(addr_null.ToString() == "[::]:0");
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// Test 2: Does Addrman::Add work as expected.
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CService addr1 = CService("250.1.1.1:8333");
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addrman.Add(CAddress(addr1), source);
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BOOST_CHECK(addrman.size() == 1);
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CAddrInfo addr_ret1 = addrman.Select();
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BOOST_CHECK(addr_ret1.ToString() == "250.1.1.1:8333");
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// Test 3: Does IP address deduplication work correctly.
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// Expected dup IP should not be added.
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CService addr1_dup = CService("250.1.1.1:8333");
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addrman.Add(CAddress(addr1_dup), source);
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BOOST_CHECK(addrman.size() == 1);
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// Test 5: New table has one addr and we add a diff addr we should
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// have two addrs.
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CService addr2 = CService("250.1.1.2:8333");
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addrman.Add(CAddress(addr2), source);
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BOOST_CHECK(addrman.size() == 2);
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// Test 6: AddrMan::Clear() should empty the new table.
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addrman.Clear();
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BOOST_CHECK(addrman.size() == 0);
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CAddrInfo addr_null2 = addrman.Select();
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BOOST_CHECK(addr_null2.ToString() == "[::]:0");
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}
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BOOST_AUTO_TEST_CASE(addrman_ports)
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{
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CAddrManTest addrman;
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// Set addrman addr placement to be deterministic.
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addrman.MakeDeterministic();
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CNetAddr source = CNetAddr("252.2.2.2:8333");
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BOOST_CHECK(addrman.size() == 0);
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// Test 7; Addr with same IP but diff port does not replace existing addr.
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CService addr1 = CService("250.1.1.1:8333");
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addrman.Add(CAddress(addr1), source);
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BOOST_CHECK(addrman.size() == 1);
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CService addr1_port = CService("250.1.1.1:8334");
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addrman.Add(CAddress(addr1_port), source);
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BOOST_CHECK(addrman.size() == 1);
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CAddrInfo addr_ret2 = addrman.Select();
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BOOST_CHECK(addr_ret2.ToString() == "250.1.1.1:8333");
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// Test 8: Add same IP but diff port to tried table, it doesn't get added.
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// Perhaps this is not ideal behavior but it is the current behavior.
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addrman.Good(CAddress(addr1_port));
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BOOST_CHECK(addrman.size() == 1);
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bool newOnly = true;
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CAddrInfo addr_ret3 = addrman.Select(newOnly);
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BOOST_CHECK(addr_ret3.ToString() == "250.1.1.1:8333");
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}
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BOOST_AUTO_TEST_CASE(addrman_select)
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{
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CAddrManTest addrman;
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// Set addrman addr placement to be deterministic.
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addrman.MakeDeterministic();
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CNetAddr source = CNetAddr("252.2.2.2:8333");
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// Test 9: Select from new with 1 addr in new.
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CService addr1 = CService("250.1.1.1:8333");
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addrman.Add(CAddress(addr1), source);
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BOOST_CHECK(addrman.size() == 1);
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bool newOnly = true;
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CAddrInfo addr_ret1 = addrman.Select(newOnly);
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BOOST_CHECK(addr_ret1.ToString() == "250.1.1.1:8333");
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// Test 10: move addr to tried, select from new expected nothing returned.
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addrman.Good(CAddress(addr1));
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BOOST_CHECK(addrman.size() == 1);
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CAddrInfo addr_ret2 = addrman.Select(newOnly);
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BOOST_CHECK(addr_ret2.ToString() == "[::]:0");
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CAddrInfo addr_ret3 = addrman.Select();
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BOOST_CHECK(addr_ret3.ToString() == "250.1.1.1:8333");
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}
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BOOST_AUTO_TEST_CASE(addrman_new_collisions)
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{
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CAddrManTest addrman;
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// Set addrman addr placement to be deterministic.
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addrman.MakeDeterministic();
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CNetAddr source = CNetAddr("252.2.2.2:8333");
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BOOST_CHECK(addrman.size() == 0);
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for (unsigned int i = 1; i < 4; i++){
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CService addr = CService("250.1.1."+boost::to_string(i));
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addrman.Add(CAddress(addr), source);
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//Test 11: No collision in new table yet.
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BOOST_CHECK(addrman.size() == i);
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}
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//Test 12: new table collision!
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CService addr1 = CService("250.1.1.4");
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addrman.Add(CAddress(addr1), source);
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BOOST_CHECK(addrman.size() == 3);
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CService addr2 = CService("250.1.1.5");
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addrman.Add(CAddress(addr2), source);
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BOOST_CHECK(addrman.size() == 4);
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}
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BOOST_AUTO_TEST_CASE(addrman_tried_collisions)
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{
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CAddrManTest addrman;
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// Set addrman addr placement to be deterministic.
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addrman.MakeDeterministic();
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CNetAddr source = CNetAddr("252.2.2.2:8333");
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BOOST_CHECK(addrman.size() == 0);
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for (unsigned int i = 1; i < 75; i++){
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CService addr = CService("250.1.1."+boost::to_string(i));
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addrman.Add(CAddress(addr), source);
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addrman.Good(CAddress(addr));
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//Test 13: No collision in tried table yet.
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BOOST_TEST_MESSAGE(addrman.size());
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BOOST_CHECK(addrman.size() == i);
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}
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//Test 14: tried table collision!
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CService addr1 = CService("250.1.1.76");
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addrman.Add(CAddress(addr1), source);
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BOOST_CHECK(addrman.size() == 74);
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CService addr2 = CService("250.1.1.77");
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addrman.Add(CAddress(addr2), source);
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BOOST_CHECK(addrman.size() == 75);
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}
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BOOST_AUTO_TEST_SUITE_END()
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