mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
356 lines
8.4 KiB
C++
356 lines
8.4 KiB
C++
/*
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This file is part of cpp-ethereum.
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cpp-ethereum is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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cpp-ethereum is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file trie.cpp
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* @author Gav Wood <i@gavwood.com>
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* @date 2014
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* Trie test functions.
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*/
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#include <fstream>
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#include <random>
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#include "JsonSpiritHeaders.h"
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#include <libdevcore/CommonIO.h>
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#include <libdevcrypto/TrieDB.h>
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#include "TrieHash.h"
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#include "MemTrie.h"
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#include <boost/test/unit_test.hpp>
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using namespace std;
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using namespace dev;
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namespace js = json_spirit;
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namespace dev
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{
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namespace test
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{
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static unsigned fac(unsigned _i)
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{
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return _i > 2 ? _i * fac(_i - 1) : _i;
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}
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}
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}
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BOOST_AUTO_TEST_CASE(trie_tests)
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{
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cnote << "Testing Trie...";
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js::mValue v;
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string s = asString(contents("../../../tests/trietest.json"));
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BOOST_REQUIRE_MESSAGE(s.length() > 0, "Contents of 'trietest.json' is empty. Have you cloned the 'tests' repo branch develop?");
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js::read_string(s, v);
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for (auto& i: v.get_obj())
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{
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cnote << i.first;
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js::mObject& o = i.second.get_obj();
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vector<pair<string, string>> ss;
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for (auto i: o["in"].get_obj())
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{
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ss.push_back(make_pair(i.first, i.second.get_str()));
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if (!ss.back().first.find("0x"))
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ss.back().first = asString(fromHex(ss.back().first.substr(2)));
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if (!ss.back().second.find("0x"))
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ss.back().second = asString(fromHex(ss.back().second.substr(2)));
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}
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for (unsigned j = 0; j < min(1000u, dev::test::fac((unsigned)ss.size())); ++j)
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{
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next_permutation(ss.begin(), ss.end());
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MemoryDB m;
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GenericTrieDB<MemoryDB> t(&m);
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t.init();
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BOOST_REQUIRE(t.check(true));
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for (auto const& k: ss)
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{
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t.insert(k.first, k.second);
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BOOST_REQUIRE(t.check(true));
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}
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BOOST_REQUIRE(!o["root"].is_null());
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BOOST_CHECK_EQUAL(o["root"].get_str(), toHex(t.root().asArray()));
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}
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}
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}
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inline h256 stringMapHash256(StringMap const& _s)
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{
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return hash256(_s);
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}
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BOOST_AUTO_TEST_CASE(moreTrieTests)
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{
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cnote << "Testing Trie more...";
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#if 0
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// More tests...
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{
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MemoryDB m;
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GenericTrieDB<MemoryDB> t(&m);
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t.init(); // initialise as empty tree.
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cout << t;
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cout << m;
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cout << t.root() << endl;
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cout << hash256(StringMap()) << endl;
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t.insert(string("tesz"), string("test"));
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cout << t;
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cout << m;
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cout << t.root() << endl;
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cout << stringMapHash256({{"test", "test"}}) << endl;
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t.insert(string("tesa"), string("testy"));
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cout << t;
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cout << m;
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cout << t.root() << endl;
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cout << stringMapHash256({{"test", "test"}, {"te", "testy"}}) << endl;
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cout << t.at(string("test")) << endl;
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cout << t.at(string("te")) << endl;
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cout << t.at(string("t")) << endl;
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t.remove(string("te"));
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cout << m;
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cout << t.root() << endl;
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cout << stringMapHash256({{"test", "test"}}) << endl;
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t.remove(string("test"));
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cout << m;
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cout << t.root() << endl;
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cout << hash256(StringMap()) << endl;
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}
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{
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MemoryDB m;
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GenericTrieDB<MemoryDB> t(&m);
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t.init(); // initialise as empty tree.
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t.insert(string("a"), string("A"));
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t.insert(string("b"), string("B"));
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cout << t;
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cout << m;
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cout << t.root() << endl;
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cout << stringMapHash256({{"b", "B"}, {"a", "A"}}) << endl;
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cout << RLP(rlp256({{"b", "B"}, {"a", "A"}})) << endl;
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}
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{
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MemTrie t;
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t.insert("dog", "puppy");
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cout << hex << t.hash256() << endl;
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cout << RLP(t.rlp()) << endl;
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}
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{
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MemTrie t;
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t.insert("bed", "d");
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t.insert("be", "e");
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cout << hex << t.hash256() << endl;
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cout << RLP(t.rlp()) << endl;
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}
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{
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cout << hex << stringMapHash256({{"dog", "puppy"}, {"doe", "reindeer"}}) << endl;
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MemTrie t;
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t.insert("dog", "puppy");
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t.insert("doe", "reindeer");
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cout << hex << t.hash256() << endl;
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cout << RLP(t.rlp()) << endl;
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cout << toHex(t.rlp()) << endl;
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}
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#endif
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{
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MemoryDB m;
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GenericTrieDB<MemoryDB> d(&m);
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d.init(); // initialise as empty tree.
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MemTrie t;
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StringMap s;
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auto add = [&](char const* a, char const* b)
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{
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d.insert(string(a), string(b));
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t.insert(a, b);
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s[a] = b;
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/*cout << endl << "-------------------------------" << endl;
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cout << a << " -> " << b << endl;
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cout << d;
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cout << m;
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cout << d.root() << endl;
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cout << hash256(s) << endl;*/
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BOOST_REQUIRE(d.check(true));
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BOOST_REQUIRE_EQUAL(t.hash256(), hash256(s));
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BOOST_REQUIRE_EQUAL(d.root(), hash256(s));
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for (auto const& i: s)
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{
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(void)i;
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BOOST_REQUIRE_EQUAL(t.at(i.first), i.second);
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BOOST_REQUIRE_EQUAL(d.at(i.first), i.second);
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}
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};
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auto remove = [&](char const* a)
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{
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s.erase(a);
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t.remove(a);
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d.remove(string(a));
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/*cout << endl << "-------------------------------" << endl;
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cout << "X " << a << endl;
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cout << d;
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cout << m;
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cout << d.root() << endl;
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cout << hash256(s) << endl;*/
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BOOST_REQUIRE(d.check(true));
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BOOST_REQUIRE(t.at(a).empty());
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BOOST_REQUIRE(d.at(string(a)).empty());
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BOOST_REQUIRE_EQUAL(t.hash256(), hash256(s));
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BOOST_REQUIRE_EQUAL(d.root(), hash256(s));
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for (auto const& i: s)
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{
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(void)i;
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BOOST_REQUIRE_EQUAL(t.at(i.first), i.second);
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BOOST_REQUIRE_EQUAL(d.at(i.first), i.second);
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}
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};
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add("dogglesworth", "cat");
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add("doe", "reindeer");
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remove("dogglesworth");
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add("horse", "stallion");
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add("do", "verb");
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add("doge", "coin");
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remove("horse");
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remove("do");
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remove("doge");
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remove("doe");
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}
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}
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BOOST_AUTO_TEST_CASE(trieLowerBound)
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{
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cnote << "Stress-testing Trie.lower_bound...";
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{
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MemoryDB dm;
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EnforceRefs e(dm, true);
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GenericTrieDB<MemoryDB> d(&dm);
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d.init(); // initialise as empty tree.
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for (int a = 0; a < 20; ++a)
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{
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StringMap m;
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for (int i = 0; i < 50; ++i)
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{
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auto k = randomWord();
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auto v = toString(i);
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m[k] = v;
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d.insert(k, v);
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}
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for (auto i: d)
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{
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auto it = d.lower_bound(i.first);
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for (auto iit = d.begin(); iit != d.end(); ++iit)
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if ((*iit).first.toString() >= i.first.toString())
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{
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BOOST_REQUIRE(it == iit);
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break;
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}
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}
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for (unsigned i = 0; i < 100; ++i)
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{
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auto k = randomWord();
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auto it = d.lower_bound(k);
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for (auto iit = d.begin(); iit != d.end(); ++iit)
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if ((*iit).first.toString() >= k)
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{
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BOOST_REQUIRE(it == iit);
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break;
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}
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}
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}
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}
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}
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BOOST_AUTO_TEST_CASE(trieStess)
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{
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cnote << "Stress-testing Trie...";
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{
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MemoryDB m;
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MemoryDB dm;
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EnforceRefs e(dm, true);
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GenericTrieDB<MemoryDB> d(&dm);
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d.init(); // initialise as empty tree.
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MemTrie t;
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BOOST_REQUIRE(d.check(true));
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for (int a = 0; a < 20; ++a)
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{
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StringMap m;
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for (int i = 0; i < 50; ++i)
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{
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auto k = randomWord();
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auto v = toString(i);
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m[k] = v;
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t.insert(k, v);
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d.insert(k, v);
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BOOST_REQUIRE_EQUAL(hash256(m), t.hash256());
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BOOST_REQUIRE_EQUAL(hash256(m), d.root());
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BOOST_REQUIRE(d.check(true));
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}
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while (!m.empty())
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{
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auto k = m.begin()->first;
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auto v = m.begin()->second;
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d.remove(k);
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t.remove(k);
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m.erase(k);
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if (!d.check(true))
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{
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// cwarn << m;
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for (auto i: d)
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cwarn << i.first.toString() << i.second.toString();
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MemoryDB dm2;
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EnforceRefs e2(dm2, true);
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GenericTrieDB<MemoryDB> d2(&dm2);
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d2.init(); // initialise as empty tree.
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for (auto i: d)
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d2.insert(i.first, i.second);
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cwarn << "Good:" << d2.root();
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// for (auto i: dm2.get())
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// cwarn << i.first.abridged() << ": " << RLP(i.second);
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d2.debugStructure(cerr);
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cwarn << "Broken:" << d.root(); // Leaves an extension -> extension (3c1... -> 742...)
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// for (auto i: dm.get())
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// cwarn << i.first.abridged() << ": " << RLP(i.second);
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d.debugStructure(cerr);
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d2.insert(k, v);
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cwarn << "Pres:" << d2.root();
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// for (auto i: dm2.get())
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// cwarn << i.first.abridged() << ": " << RLP(i.second);
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d2.debugStructure(cerr);
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g_logVerbosity = 99;
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d2.remove(k);
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g_logVerbosity = 4;
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cwarn << "Good?" << d2.root();
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}
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BOOST_REQUIRE(d.check(true));
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BOOST_REQUIRE_EQUAL(hash256(m), t.hash256());
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BOOST_REQUIRE_EQUAL(hash256(m), d.root());
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}
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}
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}
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}
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