plugeth/ethstate/state_test.go
2014-08-04 10:42:40 +02:00

37 lines
843 B
Go

package ethstate
import (
"testing"
"github.com/ethereum/eth-go/ethdb"
"github.com/ethereum/eth-go/ethtrie"
"github.com/ethereum/eth-go/ethutil"
)
var ZeroHash256 = make([]byte, 32)
func TestSnapshot(t *testing.T) {
db, _ := ethdb.NewMemDatabase()
ethutil.ReadConfig(".ethtest", "/tmp/ethtest", "")
ethutil.Config.Db = db
state := New(ethtrie.New(db, ""))
stateObject := state.GetOrNewStateObject([]byte("aa"))
stateObject.SetStorage(ethutil.Big("0"), ethutil.NewValue(42))
snapshot := state.Copy()
stateObject = state.GetStateObject([]byte("aa"))
stateObject.SetStorage(ethutil.Big("0"), ethutil.NewValue(43))
state.Set(snapshot)
stateObject = state.GetStateObject([]byte("aa"))
res := stateObject.GetStorage(ethutil.Big("0"))
if !res.Cmp(ethutil.NewValue(42)) {
t.Error("Expected storage 0 to be 42", res)
}
}