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/*
This file is part of cpp-ethereum.
cpp-ethereum is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Foobar is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Foobar. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file trie.cpp
* @author Gav Wood <i@gavwood.com>
* @date 2014
* Trie test functions.
*/
#include <random>
#include <TrieHash.h>
#include <TrieDB.h>
#include <MemTrie.h>
using namespace std;
using namespace eth;
int trieTest()
{
{
BasicMap m;
GenericTrieDB<BasicMap> t(&m);
t.init(); // initialise as empty tree.
cout << t;
cout << m;
cout << t.root() << endl;
cout << hash256(StringMap()) << endl;
t.insert(string("tesz"), string("test"));
cout << t;
cout << m;
cout << t.root() << endl;
cout << hash256({{"test", "test"}}) << endl;
t.insert(string("tesa"), string("testy"));
cout << t;
cout << m;
cout << t.root() << endl;
cout << hash256({{"test", "test"}, {"te", "testy"}}) << endl;
cout << t.at(string("test")) << endl;
cout << t.at(string("te")) << endl;
cout << t.at(string("t")) << endl;
t.remove(string("te"));
cout << m;
cout << t.root() << endl;
cout << hash256({{"test", "test"}}) << endl;
t.remove(string("test"));
cout << m;
cout << t.root() << endl;
cout << hash256(StringMap()) << endl;
}
{
BasicMap m;
GenericTrieDB<BasicMap> t(&m);
t.init(); // initialise as empty tree.
t.insert(string("a"), string("A"));
t.insert(string("b"), string("B"));
cout << t;
cout << m;
cout << t.root() << endl;
cout << hash256({{"b", "B"}, {"a", "A"}}) << endl;
cout << RLP(rlp256({{"b", "B"}, {"a", "A"}})) << endl;
}
{
MemTrie t;
t.insert("dog", "puppy");
cout << hex << t.hash256() << endl;
cout << RLP(t.rlp()) << endl;
}
{
MemTrie t;
t.insert("bed", "d");
t.insert("be", "e");
cout << hex << t.hash256() << endl;
cout << RLP(t.rlp()) << endl;
}
{
cout << hex << hash256({{"dog", "puppy"}, {"doe", "reindeer"}}) << endl;
MemTrie t;
t.insert("dog", "puppy");
t.insert("doe", "reindeer");
cout << hex << t.hash256() << endl;
cout << RLP(t.rlp()) << endl;
cout << asHex(t.rlp()) << endl;
}
{
BasicMap m;
GenericTrieDB<BasicMap> d(&m);
d.init(); // initialise as empty tree.
MemTrie t;
StringMap s;
auto add = [&](char const* a, char const* b)
{
d.insert(string(a), string(b));
t.insert(a, b);
s[a] = b;
cout << endl << "-------------------------------" << endl;
cout << a << " -> " << b << endl;
cout << d;
cout << m;
cout << d.root() << endl;
cout << hash256(s) << endl;
assert(t.hash256() == hash256(s));
assert(d.root() == hash256(s));
for (auto const& i: s)
{
(void)i;
assert(t.at(i.first) == i.second);
assert(d.at(i.first) == i.second);
}
};
auto remove = [&](char const* a)
{
s.erase(a);
t.remove(a);
d.remove(string(a));
cout << endl << "-------------------------------" << endl;
cout << "X " << a << endl;
cout << d;
cout << m;
cout << d.root() << endl;
cout << hash256(s) << endl;
assert(t.at(a).empty());
assert(d.at(string(a)).empty());
assert(t.hash256() == hash256(s));
assert(d.root() == hash256(s));
for (auto const& i: s)
{
(void)i;
assert(t.at(i.first) == i.second);
assert(d.at(i.first) == i.second);
}
};
add("dogglesworth", "cat");
add("doe", "reindeer");
remove("dogglesworth");
add("horse", "stallion");
add("do", "verb");
add("doge", "coin");
remove("horse");
remove("do");
remove("doge");
remove("doe");
for (int a = 0; a < 20; ++a)
{
StringMap m;
for (int i = 0; i < 20; ++i)
{
auto k = randomWord();
auto v = toString(i);
m.insert(make_pair(k, v));
t.insert(k, v);
d.insert(k, v);
assert(hash256(m) == t.hash256());
assert(hash256(m) == d.root());
}
while (!m.empty())
{
auto k = m.begin()->first;
d.remove(k);
t.remove(k);
m.erase(k);
assert(hash256(m) == t.hash256());
assert(hash256(m) == d.root());
}
}
}
return 0;
}
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