123 lines
2.7 KiB
Go
123 lines
2.7 KiB
Go
// Copyright 2018 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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// The go-ethereum library 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 state
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import (
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"bytes"
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"errors"
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"io/ioutil"
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"os"
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"strings"
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"testing"
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)
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var ErrInvalidArraySize = errors.New("invalid byte array size")
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var ErrInvalidValuePersisted = errors.New("invalid value was persisted to the db")
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type SerializingType struct {
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key string
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value string
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}
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func (st *SerializingType) MarshalBinary() (data []byte, err error) {
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d := []byte(strings.Join([]string{st.key, st.value}, ";"))
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return d, nil
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}
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func (st *SerializingType) UnmarshalBinary(data []byte) (err error) {
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d := bytes.Split(data, []byte(";"))
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l := len(d)
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if l == 0 {
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return ErrInvalidArraySize
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}
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if l == 2 {
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keyLen := len(d[0])
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st.key = string(d[0][:keyLen])
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valLen := len(d[1])
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st.value = string(d[1][:valLen])
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}
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return nil
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}
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// TestDBStore tests basic functionality of DBStore.
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func TestDBStore(t *testing.T) {
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dir, err := ioutil.TempDir("", "db_store_test")
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if err != nil {
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panic(err)
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}
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defer os.RemoveAll(dir)
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store, err := NewDBStore(dir)
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if err != nil {
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t.Fatal(err)
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}
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testStore(t, store)
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store.Close()
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persistedStore, err := NewDBStore(dir)
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if err != nil {
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t.Fatal(err)
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}
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defer persistedStore.Close()
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testPersistedStore(t, persistedStore)
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}
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func testStore(t *testing.T, store Store) {
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ser := &SerializingType{key: "key1", value: "value1"}
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jsonify := []string{"a", "b", "c"}
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err := store.Put(ser.key, ser)
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if err != nil {
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t.Fatal(err)
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}
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err = store.Put("key2", jsonify)
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if err != nil {
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t.Fatal(err)
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}
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}
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func testPersistedStore(t *testing.T, store Store) {
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ser := &SerializingType{}
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err := store.Get("key1", ser)
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if err != nil {
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t.Fatal(err)
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}
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if ser.key != "key1" || ser.value != "value1" {
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t.Fatal(ErrInvalidValuePersisted)
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}
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as := []string{}
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err = store.Get("key2", &as)
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if len(as) != 3 {
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t.Fatalf("serialized array did not match expectation")
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}
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if as[0] != "a" || as[1] != "b" || as[2] != "c" {
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t.Fatalf("elements serialized did not match expected values")
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}
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}
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