119 lines
3.1 KiB
Go
119 lines
3.1 KiB
Go
// Copyright 2014 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 (
|
|
"testing"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/ethdb"
|
|
)
|
|
|
|
func TestIterator(t *testing.T) {
|
|
trie := newEmpty()
|
|
vals := []struct{ k, v string }{
|
|
{"do", "verb"},
|
|
{"ether", "wookiedoo"},
|
|
{"horse", "stallion"},
|
|
{"shaman", "horse"},
|
|
{"doge", "coin"},
|
|
{"dog", "puppy"},
|
|
{"somethingveryoddindeedthis is", "myothernodedata"},
|
|
}
|
|
all := make(map[string]string)
|
|
for _, val := range vals {
|
|
all[val.k] = val.v
|
|
trie.Update([]byte(val.k), []byte(val.v))
|
|
}
|
|
trie.Commit()
|
|
|
|
found := make(map[string]string)
|
|
it := NewIterator(trie)
|
|
for it.Next() {
|
|
found[string(it.Key)] = string(it.Value)
|
|
}
|
|
|
|
for k, v := range all {
|
|
if found[k] != v {
|
|
t.Errorf("iterator value mismatch for %s: got %q want %q", k, found[k], v)
|
|
}
|
|
}
|
|
}
|
|
|
|
type kv struct {
|
|
k, v []byte
|
|
t bool
|
|
}
|
|
|
|
func TestIteratorLargeData(t *testing.T) {
|
|
trie := newEmpty()
|
|
vals := make(map[string]*kv)
|
|
|
|
for i := byte(0); i < 255; i++ {
|
|
value := &kv{common.LeftPadBytes([]byte{i}, 32), []byte{i}, false}
|
|
value2 := &kv{common.LeftPadBytes([]byte{10, i}, 32), []byte{i}, false}
|
|
trie.Update(value.k, value.v)
|
|
trie.Update(value2.k, value2.v)
|
|
vals[string(value.k)] = value
|
|
vals[string(value2.k)] = value2
|
|
}
|
|
|
|
it := NewIterator(trie)
|
|
for it.Next() {
|
|
vals[string(it.Key)].t = true
|
|
}
|
|
|
|
var untouched []*kv
|
|
for _, value := range vals {
|
|
if !value.t {
|
|
untouched = append(untouched, value)
|
|
}
|
|
}
|
|
|
|
if len(untouched) > 0 {
|
|
t.Errorf("Missed %d nodes", len(untouched))
|
|
for _, value := range untouched {
|
|
t.Error(value)
|
|
}
|
|
}
|
|
}
|
|
|
|
// Tests that the node iterator indeed walks over the entire database contents.
|
|
func TestNodeIteratorCoverage(t *testing.T) {
|
|
// Create some arbitrary test trie to iterate
|
|
db, trie, _ := makeTestTrie()
|
|
|
|
// Gather all the node hashes found by the iterator
|
|
hashes := make(map[common.Hash]struct{})
|
|
for it := NewNodeIterator(trie); it.Next(); {
|
|
if it.Hash != (common.Hash{}) {
|
|
hashes[it.Hash] = struct{}{}
|
|
}
|
|
}
|
|
// Cross check the hashes and the database itself
|
|
for hash := range hashes {
|
|
if _, err := db.Get(hash.Bytes()); err != nil {
|
|
t.Errorf("failed to retrieve reported node %x: %v", hash, err)
|
|
}
|
|
}
|
|
for _, key := range db.(*ethdb.MemDatabase).Keys() {
|
|
if _, ok := hashes[common.BytesToHash(key)]; !ok {
|
|
t.Errorf("state entry not reported %x", key)
|
|
}
|
|
}
|
|
}
|