core/state: deleted field in StateObject Copy() and unit test

This commit is contained in:
Gustav Simonsson 2015-09-08 15:53:17 +02:00
parent edaea69817
commit 004ed786b4
2 changed files with 105 additions and 0 deletions

View File

@ -263,6 +263,7 @@ func (self *StateObject) Copy() *StateObject {
stateObject.gasPool.Set(self.gasPool)
stateObject.remove = self.remove
stateObject.dirty = self.dirty
stateObject.deleted = self.deleted
return stateObject
}

View File

@ -17,6 +17,7 @@
package state
import (
"bytes"
"math/big"
"testing"
@ -117,3 +118,106 @@ func (s *StateSuite) TestSnapshot(c *checker.C) {
c.Assert(data1, checker.DeepEquals, res)
}
// use testing instead of checker because checker does not support
// printing/logging in tests (-check.vv does not work)
func TestSnapshot2(t *testing.T) {
db, _ := ethdb.NewMemDatabase()
state := New(common.Hash{}, db)
stateobjaddr0 := toAddr([]byte("so0"))
stateobjaddr1 := toAddr([]byte("so1"))
var storageaddr common.Hash
data0 := common.BytesToHash([]byte{17})
data1 := common.BytesToHash([]byte{18})
state.SetState(stateobjaddr0, storageaddr, data0)
state.SetState(stateobjaddr1, storageaddr, data1)
// db, trie are already non-empty values
so0 := state.GetStateObject(stateobjaddr0)
so0.balance = big.NewInt(42)
so0.nonce = 43
so0.gasPool = big.NewInt(44)
so0.code = []byte{'c', 'a', 'f', 'e'}
so0.codeHash = so0.CodeHash()
so0.remove = true
so0.deleted = false
so0.dirty = false
state.SetStateObject(so0)
// and one with deleted == true
so1 := state.GetStateObject(stateobjaddr1)
so1.balance = big.NewInt(52)
so1.nonce = 53
so1.gasPool = big.NewInt(54)
so1.code = []byte{'c', 'a', 'f', 'e', '2'}
so1.codeHash = so1.CodeHash()
so1.remove = true
so1.deleted = true
so1.dirty = true
state.SetStateObject(so1)
so1 = state.GetStateObject(stateobjaddr1)
if so1 != nil {
t.Fatalf("deleted object not nil when getting")
}
snapshot := state.Copy()
state.Set(snapshot)
so0Restored := state.GetStateObject(stateobjaddr0)
so1Restored := state.GetStateObject(stateobjaddr1)
// non-deleted is equal (restored)
compareStateObjects(so0, so0Restored, t)
// deleted should be nil, both before and after restore of state copy
if so1Restored != nil {
t.Fatalf("deleted object not nil after restoring snapshot")
}
}
func compareStateObjects(so0, so1 *StateObject, t *testing.T) {
if so0.address != so1.address {
t.Fatalf("\nexpected %v\ngot %v", so0.address, so1.address)
}
if so0.balance.Cmp(so1.balance) != 0 {
t.Fatalf("\nexpected %v\ngot %v", so0.balance, so1.balance)
}
if so0.nonce != so1.nonce {
t.Fatalf("\nexpected %v\ngot %v", so0.nonce, so1.nonce)
}
if !bytes.Equal(so0.codeHash, so1.codeHash) {
t.Fatalf("\nexpected %v\ngot %v", so0.codeHash, so1.codeHash)
}
if !bytes.Equal(so0.code, so1.code) {
t.Fatalf("\nexpected %v\ngot %v", so0.code, so1.code)
}
if !bytes.Equal(so0.initCode, so1.initCode) {
t.Fatalf("\nexpected %v\ngot %v", so0.initCode, so1.initCode)
}
for k, v := range so0.storage {
if so1.storage[k] != v {
t.Fatalf("\nstorage key %s:\nexpected %v\ngot %v", k, v, so1.storage[k])
}
}
for k, v := range so1.storage {
if so0.storage[k] != v {
t.Fatalf("\nunexpected k,v : %v, %v", k, v)
}
}
if so0.gasPool.Cmp(so1.gasPool) != 0 {
t.Fatalf("\nexpected %v\ngot %v", so0.gasPool, so1.gasPool)
}
if so0.remove != so1.remove {
t.Fatalf("\nexpected %v\ngot %v", so0.remove, so1.remove)
}
if so0.deleted != so1.deleted {
t.Fatalf("\nexpected %v\ngot %v", so0.deleted, so1.deleted)
}
if so0.dirty != so1.dirty {
t.Fatalf("\nexpected %v\ngot %v", so0.dirty, so1.dirty)
}
}