public void TrieShouldUpdatable(int repeats)
{
const string path = "data1";
// leveldb
FileDB.Destroy(path);
FileDB db = new FileDB(path, true);
// 랜덤 키 생성 : 키의 길이는 1 - 64
List <byte[]> keys = new List <byte[]>();
for (int i = 0; i < repeats; i++)
{
keys.Add(SecureRandom.GetBytes(SecureRandom.Next(1, 65)));
}
ITrie trie = new Trie(db);
// put
foreach (var key in keys)
{
trie.Put(key, key.Hash256());
}
// update
foreach (var key in keys)
{
trie.Put(key, key.Hash512());
}
H256 root = trie.Commit();
trie.Dispose();
// update된 내용이 맞는지 확인
trie = new Trie(db, root);
foreach (var key in keys)
{
Assert.Equal(key.Hash512(), trie.Get(key));
}
// 모든 키 삭제
foreach (var key in keys)
{
trie.Del(key);
}
root = trie.Commit();
trie.Dispose();
// 키에 해당하는 내용이 있는지 확인
trie = new Trie(db, root);
foreach (var key in keys)
{
Assert.Null(trie.Get(key));
}
}
public void TrieShouldWorksWithLevelDB(int repeats)
{
const string path = "data";
// leveldb
FileDB.Destroy(path);
FileDB db = new FileDB(path, true);
// 랜덤 키 생성 : 키의 길이는 1 - 64
List <byte[]> keys = new List <byte[]>();
for (int i = 0; i < repeats; i++)
{
keys.Add(SecureRandom.GetBytes(SecureRandom.Next(1, 65)));
}
// for BaseTrie
{
ITrie trie = new Trie(db);
foreach (var key in keys)
{
trie.Put(key, key.Hash256());
}
H256 root = trie.Commit();
trie.Dispose();
ITrie trie2 = new Trie(db, root);
foreach (var key in keys)
{
Assert.Equal(key.Hash256(), trie2.Get(key));
}
}
// for SecureTrie
{
ITrie trie = new SecureTrie(db);
foreach (var key in keys)
{
trie.Put(key, key.Hash256());
}
H256 root = trie.Commit();
trie.Dispose();
ITrie trie2 = new SecureTrie(db, root);
foreach (var key in keys)
{
Assert.Equal(key.Hash256(), trie2.Get(key));
}
}
}
public void FileDBShouldBeEnumerable(int repeats)
{
const string path = "filedb/enum";
// delete existing db
FileDB.Destroy(path);
// filedb
var db = new FileDB(path, true);
// 랜덤키 밸류 생성
Dictionary <byte[], byte[]> expected = new Dictionary <byte[], byte[]>(new ByteArrayComparer());
for (int i = 0; i < repeats; i++)
{
expected.Add(SecureRandom.GetBytes(32), SecureRandom.GetBytes(64));
}
// insert into db
foreach (var kv in expected)
{
db.Put(kv.Key, kv.Value);
}
// enumerate
int items = 0;
foreach (var kv in db.AsEnumerable())
{
byte[] key = kv.Key;
byte[] value = kv.Value;
Assert.True(expected.ContainsKey(key));
Assert.Equal(expected[key], value);
items++;
}
Assert.Equal(expected.Count, items);
}