3f047be5aa
All code outside of cmd/ is licensed as LGPL. The headers now reflect this by calling the whole work "the go-ethereum library".
355 lines
8.0 KiB
Go
355 lines
8.0 KiB
Go
// Copyright 2014 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// go-ethereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser 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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//
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// The go-ethereum library 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 Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package trie
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import (
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"bytes"
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"fmt"
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"testing"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/crypto"
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)
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type Db map[string][]byte
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func (self Db) Get(k []byte) ([]byte, error) { return self[string(k)], nil }
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func (self Db) Put(k, v []byte) error { self[string(k)] = v; return nil }
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// Used for testing
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func NewEmpty() *Trie {
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return New(nil, make(Db))
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}
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func NewEmptySecure() *SecureTrie {
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return NewSecure(nil, make(Db))
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}
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func TestEmptyTrie(t *testing.T) {
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trie := NewEmpty()
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res := trie.Hash()
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exp := crypto.Sha3(common.Encode(""))
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if !bytes.Equal(res, exp) {
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t.Errorf("expected %x got %x", exp, res)
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}
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}
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func TestNull(t *testing.T) {
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trie := NewEmpty()
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key := make([]byte, 32)
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value := common.FromHex("0x823140710bf13990e4500136726d8b55")
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trie.Update(key, value)
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value = trie.Get(key)
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}
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func TestInsert(t *testing.T) {
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trie := NewEmpty()
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trie.UpdateString("doe", "reindeer")
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trie.UpdateString("dog", "puppy")
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trie.UpdateString("dogglesworth", "cat")
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exp := common.Hex2Bytes("8aad789dff2f538bca5d8ea56e8abe10f4c7ba3a5dea95fea4cd6e7c3a1168d3")
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root := trie.Hash()
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if !bytes.Equal(root, exp) {
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t.Errorf("exp %x got %x", exp, root)
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}
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trie = NewEmpty()
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trie.UpdateString("A", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")
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exp = common.Hex2Bytes("d23786fb4a010da3ce639d66d5e904a11dbc02746d1ce25029e53290cabf28ab")
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root = trie.Hash()
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if !bytes.Equal(root, exp) {
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t.Errorf("exp %x got %x", exp, root)
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}
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}
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func TestGet(t *testing.T) {
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trie := NewEmpty()
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trie.UpdateString("doe", "reindeer")
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trie.UpdateString("dog", "puppy")
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trie.UpdateString("dogglesworth", "cat")
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res := trie.GetString("dog")
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if !bytes.Equal(res, []byte("puppy")) {
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t.Errorf("expected puppy got %x", res)
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}
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unknown := trie.GetString("unknown")
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if unknown != nil {
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t.Errorf("expected nil got %x", unknown)
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}
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}
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func TestDelete(t *testing.T) {
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trie := NewEmpty()
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vals := []struct{ k, v string }{
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{"do", "verb"},
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{"ether", "wookiedoo"},
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{"horse", "stallion"},
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{"shaman", "horse"},
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{"doge", "coin"},
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{"ether", ""},
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{"dog", "puppy"},
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{"shaman", ""},
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}
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for _, val := range vals {
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if val.v != "" {
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trie.UpdateString(val.k, val.v)
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} else {
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trie.DeleteString(val.k)
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}
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}
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hash := trie.Hash()
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exp := common.Hex2Bytes("5991bb8c6514148a29db676a14ac506cd2cd5775ace63c30a4fe457715e9ac84")
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if !bytes.Equal(hash, exp) {
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t.Errorf("expected %x got %x", exp, hash)
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}
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}
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func TestEmptyValues(t *testing.T) {
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trie := NewEmpty()
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vals := []struct{ k, v string }{
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{"do", "verb"},
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{"ether", "wookiedoo"},
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{"horse", "stallion"},
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{"shaman", "horse"},
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{"doge", "coin"},
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{"ether", ""},
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{"dog", "puppy"},
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{"shaman", ""},
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}
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for _, val := range vals {
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trie.UpdateString(val.k, val.v)
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}
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hash := trie.Hash()
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exp := common.Hex2Bytes("5991bb8c6514148a29db676a14ac506cd2cd5775ace63c30a4fe457715e9ac84")
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if !bytes.Equal(hash, exp) {
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t.Errorf("expected %x got %x", exp, hash)
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}
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}
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func TestReplication(t *testing.T) {
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trie := NewEmpty()
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vals := []struct{ k, v string }{
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{"do", "verb"},
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{"ether", "wookiedoo"},
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{"horse", "stallion"},
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{"shaman", "horse"},
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{"doge", "coin"},
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{"ether", ""},
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{"dog", "puppy"},
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{"shaman", ""},
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{"somethingveryoddindeedthis is", "myothernodedata"},
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}
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for _, val := range vals {
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trie.UpdateString(val.k, val.v)
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}
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trie.Commit()
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trie2 := New(trie.Root(), trie.cache.backend)
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if string(trie2.GetString("horse")) != "stallion" {
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t.Error("expected to have horse => stallion")
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}
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hash := trie2.Hash()
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exp := trie.Hash()
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if !bytes.Equal(hash, exp) {
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t.Errorf("root failure. expected %x got %x", exp, hash)
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}
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}
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func TestReset(t *testing.T) {
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trie := NewEmpty()
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vals := []struct{ k, v string }{
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{"do", "verb"},
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{"ether", "wookiedoo"},
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{"horse", "stallion"},
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}
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for _, val := range vals {
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trie.UpdateString(val.k, val.v)
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}
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trie.Commit()
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before := common.CopyBytes(trie.roothash)
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trie.UpdateString("should", "revert")
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trie.Hash()
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// Should have no effect
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trie.Hash()
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trie.Hash()
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// ###
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trie.Reset()
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after := common.CopyBytes(trie.roothash)
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if !bytes.Equal(before, after) {
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t.Errorf("expected roots to be equal. %x - %x", before, after)
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}
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}
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func TestParanoia(t *testing.T) {
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t.Skip()
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trie := NewEmpty()
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vals := []struct{ k, v string }{
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{"do", "verb"},
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{"ether", "wookiedoo"},
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{"horse", "stallion"},
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{"shaman", "horse"},
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{"doge", "coin"},
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{"ether", ""},
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{"dog", "puppy"},
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{"shaman", ""},
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{"somethingveryoddindeedthis is", "myothernodedata"},
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}
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for _, val := range vals {
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trie.UpdateString(val.k, val.v)
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}
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trie.Commit()
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ok, t2 := ParanoiaCheck(trie, trie.cache.backend)
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if !ok {
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t.Errorf("trie paranoia check failed %x %x", trie.roothash, t2.roothash)
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}
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}
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// Not an actual test
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func TestOutput(t *testing.T) {
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t.Skip()
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base := "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
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trie := NewEmpty()
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for i := 0; i < 50; i++ {
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trie.UpdateString(fmt.Sprintf("%s%d", base, i), "valueeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee")
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}
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fmt.Println("############################## FULL ################################")
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fmt.Println(trie.root)
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trie.Commit()
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fmt.Println("############################## SMALL ################################")
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trie2 := New(trie.roothash, trie.cache.backend)
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trie2.GetString(base + "20")
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fmt.Println(trie2.root)
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}
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func BenchmarkGets(b *testing.B) {
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trie := NewEmpty()
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vals := []struct{ k, v string }{
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{"do", "verb"},
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{"ether", "wookiedoo"},
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{"horse", "stallion"},
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{"shaman", "horse"},
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{"doge", "coin"},
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{"ether", ""},
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{"dog", "puppy"},
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{"shaman", ""},
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{"somethingveryoddindeedthis is", "myothernodedata"},
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}
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for _, val := range vals {
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trie.UpdateString(val.k, val.v)
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}
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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trie.Get([]byte("horse"))
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}
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}
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func BenchmarkUpdate(b *testing.B) {
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trie := NewEmpty()
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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trie.UpdateString(fmt.Sprintf("aaaaaaaaa%d", i), "value")
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}
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trie.Hash()
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}
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type kv struct {
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k, v []byte
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t bool
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}
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func TestLargeData(t *testing.T) {
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trie := NewEmpty()
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vals := make(map[string]*kv)
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for i := byte(0); i < 255; i++ {
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value := &kv{common.LeftPadBytes([]byte{i}, 32), []byte{i}, false}
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value2 := &kv{common.LeftPadBytes([]byte{10, i}, 32), []byte{i}, false}
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trie.Update(value.k, value.v)
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trie.Update(value2.k, value2.v)
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vals[string(value.k)] = value
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vals[string(value2.k)] = value2
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}
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it := trie.Iterator()
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for it.Next() {
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vals[string(it.Key)].t = true
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}
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var untouched []*kv
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for _, value := range vals {
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if !value.t {
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untouched = append(untouched, value)
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}
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}
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if len(untouched) > 0 {
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t.Errorf("Missed %d nodes", len(untouched))
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for _, value := range untouched {
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t.Error(value)
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}
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}
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}
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func TestSecureDelete(t *testing.T) {
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trie := NewEmptySecure()
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vals := []struct{ k, v string }{
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{"do", "verb"},
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{"ether", "wookiedoo"},
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{"horse", "stallion"},
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{"shaman", "horse"},
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{"doge", "coin"},
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{"ether", ""},
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{"dog", "puppy"},
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{"shaman", ""},
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}
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for _, val := range vals {
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if val.v != "" {
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trie.UpdateString(val.k, val.v)
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} else {
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trie.DeleteString(val.k)
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}
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}
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hash := trie.Hash()
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exp := common.Hex2Bytes("29b235a58c3c25ab83010c327d5932bcf05324b7d6b1185e650798034783ca9d")
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if !bytes.Equal(hash, exp) {
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t.Errorf("expected %x got %x", exp, hash)
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}
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}
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