path: root/trie/iterator_test.go

// Copyright 2014 The go-ethereum Authors
// This file is part of go-ethereum.
//
// go-ethereum 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.
//
// go-ethereum 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 go-ethereum.  If not, see <http://www.gnu.org/licenses/>.

package trie

import "testing"

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"},
    }
    v := make(map[string]bool)
    for _, val := range vals {
        v[val.k] = false
        trie.UpdateString(val.k, val.v)
    }
    trie.Commit()

    it := trie.Iterator()
    for it.Next() {
        v[string(it.Key)] = true
    }

    for k, found := range v {
        if !found {
            t.Error("iterator didn't find", k)
        }
    }
}