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path: root/trie/secure_trie_test.go
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// Copyright 2015 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.

package trie

import (
    "bytes"
    "testing"

    "github.com/ethereum/go-ethereum/common"
    "github.com/ethereum/go-ethereum/crypto"
    "github.com/ethereum/go-ethereum/ethdb"
)

func newEmptySecure() *SecureTrie {
    db, _ := ethdb.NewMemDatabase()
    trie, _ := NewSecure(common.Hash{}, db)
    return trie
}

func TestSecureDelete(t *testing.T) {
    trie := newEmptySecure()
    vals := []struct{ k, v string }{
        {"do", "verb"},
        {"ether", "wookiedoo"},
        {"horse", "stallion"},
        {"shaman", "horse"},
        {"doge", "coin"},
        {"ether", ""},
        {"dog", "puppy"},
        {"shaman", ""},
    }
    for _, val := range vals {
        if val.v != "" {
            trie.Update([]byte(val.k), []byte(val.v))
        } else {
            trie.Delete([]byte(val.k))
        }
    }
    hash := trie.Hash()
    exp := common.HexToHash("29b235a58c3c25ab83010c327d5932bcf05324b7d6b1185e650798034783ca9d")
    if hash != exp {
        t.Errorf("expected %x got %x", exp, hash)
    }
}

func TestSecureGetKey(t *testing.T) {
    trie := newEmptySecure()
    trie.Update([]byte("foo"), []byte("bar"))

    key := []byte("foo")
    value := []byte("bar")
    seckey := crypto.Sha3(key)

    if !bytes.Equal(trie.Get(key), value) {
        t.Errorf("Get did not return bar")
    }
    if k := trie.GetKey(seckey); !bytes.Equal(k, key) {
        t.Errorf("GetKey returned %q, want %q", k, key)
    }
}