// NewState constructs a new State. This Initializes encapsulated state implementation
func NewState() *State {
stateImplName := viper.GetString("ledger.state.dataStructure")
if len(stateImplName) == 0 {
stateImplName = detaultStateImpl
}
switch stateImplName {
case "buckettree":
stateImpl = buckettree.NewStateImpl()
case "trie":
stateImpl = trie.NewStateTrie()
default:
panic(fmt.Errorf("Error during initialization of state implementation. State data structure '%s' is not valid.", stateImplName))
}
err := stateImpl.Initialize()
if err != nil {
panic(fmt.Errorf("Error during initialization of state implementation: %s", err))
}
deltaHistorySize := viper.GetInt("ledger.state.deltaHistorySize")
if deltaHistorySize < 0 {
panic(fmt.Errorf("Delta history size must be greater than or equal to 0. Current value is %d.", deltaHistorySize))
}
return &State{stateImpl, statemgmt.NewStateDelta(), statemgmt.NewStateDelta(), "", make(map[string][]byte),
false, uint64(deltaHistorySize)}
}
func TestStateSnapshotIterator(t *testing.T) {
testDBWrapper.CreateFreshDB(t)
stateTrieTestWrapper := newStateTrieTestWrapper(t)
stateTrie := stateTrieTestWrapper.stateTrie
stateDelta := statemgmt.NewStateDelta()
// insert keys
stateDelta.Set("chaincodeID1", "key1", []byte("value1"), nil)
stateDelta.Set("chaincodeID2", "key2", []byte("value2"), nil)
stateDelta.Set("chaincodeID3", "key3", []byte("value3"), nil)
stateDelta.Set("chaincodeID4", "key4", []byte("value4"), nil)
stateDelta.Set("chaincodeID5", "key5", []byte("value5"), nil)
stateDelta.Set("chaincodeID6", "key6", []byte("value6"), nil)
stateTrie.PrepareWorkingSet(stateDelta)
stateTrieTestWrapper.PersistChangesAndResetInMemoryChanges()
//check that the key is persisted
testutil.AssertEquals(t, stateTrieTestWrapper.Get("chaincodeID1", "key1"), []byte("value1"))
testutil.AssertEquals(t, stateTrieTestWrapper.Get("chaincodeID2", "key2"), []byte("value2"))
testutil.AssertEquals(t, stateTrieTestWrapper.Get("chaincodeID3", "key3"), []byte("value3"))
testutil.AssertEquals(t, stateTrieTestWrapper.Get("chaincodeID4", "key4"), []byte("value4"))
testutil.AssertEquals(t, stateTrieTestWrapper.Get("chaincodeID5", "key5"), []byte("value5"))
testutil.AssertEquals(t, stateTrieTestWrapper.Get("chaincodeID6", "key6"), []byte("value6"))
// take db snapeshot
dbSnapshot := db.GetDBHandle().GetSnapshot()
stateDelta1 := statemgmt.NewStateDelta()
// delete a few keys
stateDelta1.Delete("chaincodeID1", "key1", nil)
stateDelta1.Delete("chaincodeID3", "key3", nil)
stateDelta1.Delete("chaincodeID4", "key4", nil)
stateDelta1.Delete("chaincodeID6", "key6", nil)
// update remaining keys
stateDelta1.Set("chaincodeID2", "key2", []byte("value2_new"), nil)
stateDelta1.Set("chaincodeID5", "key5", []byte("value5_new"), nil)
stateTrie.PrepareWorkingSet(stateDelta1)
stateTrieTestWrapper.PersistChangesAndResetInMemoryChanges()
//check that the keys are updated
testutil.AssertNil(t, stateTrieTestWrapper.Get("chaincodeID1", "key1"))
testutil.AssertNil(t, stateTrieTestWrapper.Get("chaincodeID3", "key3"))
testutil.AssertNil(t, stateTrieTestWrapper.Get("chaincodeID4", "key4"))
testutil.AssertNil(t, stateTrieTestWrapper.Get("chaincodeID6", "key6"))
testutil.AssertEquals(t, stateTrieTestWrapper.Get("chaincodeID2", "key2"), []byte("value2_new"))
testutil.AssertEquals(t, stateTrieTestWrapper.Get("chaincodeID5", "key5"), []byte("value5_new"))
itr, err := newStateSnapshotIterator(dbSnapshot)
testutil.AssertNoError(t, err, "Error while getting state snapeshot iterator")
stateDeltaFromSnapshot := statemgmt.NewStateDelta()
for itr.Next() {
keyBytes, valueBytes := itr.GetRawKeyValue()
t.Logf("key=[%s], value=[%s]", string(keyBytes), string(valueBytes))
chaincodeID, key := statemgmt.DecodeCompositeKey(keyBytes)
stateDeltaFromSnapshot.Set(chaincodeID, key, valueBytes, nil)
}
testutil.AssertEquals(t, stateDelta, stateDeltaFromSnapshot)
}
func TestStateTrie_ComputeHash_AllInMemory_NoContents(t *testing.T) {
testDBWrapper.CreateFreshDB(t)
stateTrie := NewStateTrie()
stateTrieTestWrapper := &stateTrieTestWrapper{stateTrie, t}
hash := stateTrieTestWrapper.PrepareWorkingSetAndComputeCryptoHash(statemgmt.NewStateDelta())
testutil.AssertEquals(t, hash, nil)
}
func createFreshDBAndInitTestStateImplWithCustomHasher(t *testing.T, numBuckets int, maxGroupingAtEachLevel int) (*testHasher, *stateImplTestWrapper, *statemgmt.StateDelta) {
testDBWrapper.CreateFreshDB(t)
testHasher := newTestHasher()
stateImplTestWrapper := newStateImplTestWrapper(t)
stateDelta := statemgmt.NewStateDelta()
conf = initConfig(numBuckets, maxGroupingAtEachLevel, testHasher.getHashFunction())
return testHasher, stateImplTestWrapper, stateDelta
}
// FetchStateDeltaFromDB fetches the StateDelta corrsponding to given blockNumber
func (state *State) FetchStateDeltaFromDB(blockNumber uint64) (*statemgmt.StateDelta, error) {
stateDeltaBytes, err := db.GetDBHandle().GetFromStateDeltaCF(encodeStateDeltaKey(blockNumber))
if err != nil {
return nil, err
}
if stateDeltaBytes == nil {
return nil, nil
}
stateDelta := statemgmt.NewStateDelta()
stateDelta.Unmarshal(stateDeltaBytes)
return stateDelta, nil
}
func TestStateTrie_GetSet_WithDB(t *testing.T) {
testDBWrapper.CreateFreshDB(t)
stateTrie := NewStateTrie()
stateTrieTestWrapper := &stateTrieTestWrapper{stateTrie, t}
stateDelta := statemgmt.NewStateDelta()
stateDelta.Set("chaincodeID1", "key1", []byte("value1"), nil)
stateDelta.Set("chaincodeID1", "key2", []byte("value2"), nil)
stateDelta.Set("chaincodeID2", "key3", []byte("value3"), nil)
stateDelta.Set("chaincodeID2", "key4", []byte("value4"), nil)
stateTrieTestWrapper.PrepareWorkingSetAndComputeCryptoHash(stateDelta)
stateTrieTestWrapper.PersistChangesAndResetInMemoryChanges()
testutil.AssertEquals(t, stateTrieTestWrapper.Get("chaincodeID1", "key1"), []byte("value1"))
}
// sendBlocks sends the blocks based upon the supplied SyncBlockRange over the stream.
func (d *Handler) sendStateSnapshot(syncStateSnapshotRequest *pb.SyncStateSnapshotRequest) {
peerLogger.Debug("Sending state snapshot with correlationId = %d", syncStateSnapshotRequest.CorrelationId)
snapshot, err := d.Coordinator.GetStateSnapshot()
if err != nil {
peerLogger.Error(fmt.Sprintf("Error getting snapshot: %s", err))
return
}
defer snapshot.Release()
// Iterate over the state deltas and send to requestor
delta := statemgmt.NewStateDelta()
currBlockNumber := snapshot.GetBlockNumber()
var sequence uint64
// Loop through and send the Deltas
for i := 0; snapshot.Next(); i++ {
k, v := snapshot.GetRawKeyValue()
cID, kID := statemgmt.DecodeCompositeKey(k)
delta.Set(cID, kID, v, nil)
deltaAsBytes := delta.Marshal()
// Encode a SyncStateSnapsot into the payload
sequence = uint64(i)
syncStateSnapshot := &pb.SyncStateSnapshot{Delta: deltaAsBytes, Sequence: sequence, BlockNumber: currBlockNumber, Request: syncStateSnapshotRequest}
syncStateSnapshotBytes, err := proto.Marshal(syncStateSnapshot)
if err != nil {
peerLogger.Error(fmt.Sprintf("Error marshalling syncStateSnapsot for BlockNum = %d: %s", currBlockNumber, err))
break
}
if err := d.SendMessage(&pb.OpenchainMessage{Type: pb.OpenchainMessage_SYNC_STATE_SNAPSHOT, Payload: syncStateSnapshotBytes}); err != nil {
peerLogger.Error(fmt.Sprintf("Error sending syncStateSnapsot for BlockNum = %d: %s", currBlockNumber, err))
break
}
}
// Now send the terminating message
syncStateSnapshot := &pb.SyncStateSnapshot{Delta: []byte{}, Sequence: sequence + 1, BlockNumber: currBlockNumber, Request: syncStateSnapshotRequest}
syncStateSnapshotBytes, err := proto.Marshal(syncStateSnapshot)
if err != nil {
peerLogger.Error(fmt.Sprintf("Error marshalling terminating syncStateSnapsot message for correlationId = %d, BlockNum = %d: %s", syncStateSnapshotRequest.CorrelationId, currBlockNumber, err))
return
}
if err := d.SendMessage(&pb.OpenchainMessage{Type: pb.OpenchainMessage_SYNC_STATE_SNAPSHOT, Payload: syncStateSnapshotBytes}); err != nil {
peerLogger.Error(fmt.Sprintf("Error sending terminating syncStateSnapsot for correlationId = %d, BlockNum = %d: %s", syncStateSnapshotRequest.CorrelationId, currBlockNumber, err))
return
}
}
func TestStateImpl_ComputeHash_DB_3(t *testing.T) {
// simple test... not using custom hasher
conf = initConfig(DefaultNumBuckets, DefaultMaxGroupingAtEachLevel, fnvHash)
testDBWrapper.CreateFreshDB(t)
stateImplTestWrapper := newStateImplTestWrapper(t)
stateImpl := stateImplTestWrapper.stateImpl
stateDelta := statemgmt.NewStateDelta()
stateDelta.Set("chaincode1", "key1", []byte("value1"), nil)
stateDelta.Set("chaincode2", "key2", []byte("value2"), nil)
stateDelta.Set("chaincode3", "key3", []byte("value3"), nil)
stateImpl.PrepareWorkingSet(stateDelta)
hash1 := stateImplTestWrapper.computeCryptoHash()
stateImplTestWrapper.persistChangesAndResetInMemoryChanges()
stateDelta = statemgmt.NewStateDelta()
stateDelta.Delete("chaincode1", "key1", nil)
stateDelta.Delete("chaincode2", "key2", nil)
stateDelta.Delete("chaincode3", "key3", nil)
stateImpl.PrepareWorkingSet(stateDelta)
hash2 := stateImplTestWrapper.computeCryptoHash()
stateImplTestWrapper.persistChangesAndResetInMemoryChanges()
testutil.AssertNotEquals(t, hash1, hash2)
testutil.AssertNil(t, hash2)
}
func createFreshDBAndInitTestStateImplWithCustomHasher(t *testing.T, numBuckets int, maxGroupingAtEachLevel int) (*testHasher, *stateImplTestWrapper, *statemgmt.StateDelta) {
testHasher := newTestHasher()
configMap := map[string]interface{}{
ConfigNumBuckets: numBuckets,
ConfigMaxGroupingAtEachLevel: maxGroupingAtEachLevel,
ConfigHashFunction: testHasher.getHashFunction(),
}
testDBWrapper.CreateFreshDB(t)
stateImpl := NewStateImpl()
stateImpl.Initialize(configMap)
stateImplTestWrapper := &stateImplTestWrapper{configMap, stateImpl, t}
stateDelta := statemgmt.NewStateDelta()
return testHasher, stateImplTestWrapper, stateDelta
}
func TestDataNodesDelta(t *testing.T) {
conf = initConfig(26, 3, fnvHash)
stateDelta := statemgmt.NewStateDelta()
stateDelta.Set("chaincodeID1", "key1", []byte("value1_1"), nil)
stateDelta.Set("chaincodeID1", "key2", []byte("value1_2"), nil)
stateDelta.Set("chaincodeID2", "key1", []byte("value2_1"), nil)
stateDelta.Set("chaincodeID2", "key2", []byte("value2_2"), nil)
dataNodesDelta := newDataNodesDelta(stateDelta)
affectedBuckets := dataNodesDelta.getAffectedBuckets()
testutil.AssertContains(t, affectedBuckets, newDataKey("chaincodeID1", "key1").getBucketKey())
testutil.AssertContains(t, affectedBuckets, newDataKey("chaincodeID1", "key2").getBucketKey())
testutil.AssertContains(t, affectedBuckets, newDataKey("chaincodeID2", "key1").getBucketKey())
testutil.AssertContains(t, affectedBuckets, newDataKey("chaincodeID2", "key2").getBucketKey())
}
// TxFinish marks the completion of on-going tx. If txUUID is not same as of the on-going tx, this call panics
func (state *State) TxFinish(txUUID string, txSuccessful bool) {
logger.Debug("txFinish() for txUuid [%s], txSuccessful=[%t]", txUUID, txSuccessful)
if state.currentTxUUID != txUUID {
panic(fmt.Errorf("Different Uuid in tx-begin [%s] and tx-finish [%s]", state.currentTxUUID, txUUID))
}
if txSuccessful {
if !state.currentTxStateDelta.IsEmpty() {
logger.Debug("txFinish() for txUuid [%s] merging state changes", txUUID)
state.stateDelta.ApplyChanges(state.currentTxStateDelta)
state.txStateDeltaHash[txUUID] = state.currentTxStateDelta.ComputeCryptoHash()
state.updateStateImpl = true
} else {
state.txStateDeltaHash[txUUID] = nil
}
}
state.currentTxStateDelta = statemgmt.NewStateDelta()
state.currentTxUUID = ""
}
func TestStateSnapshotIterator(t *testing.T) {
testDBWrapper.CreateFreshDB(t)
stateImplTestWrapper := newStateImplTestWrapper(t)
stateDelta := statemgmt.NewStateDelta()
// insert keys
stateDelta.Set("chaincodeID1", "key1", []byte("value1"), nil)
stateDelta.Set("chaincodeID2", "key2", []byte("value2"), nil)
stateDelta.Set("chaincodeID3", "key3", []byte("value3"), nil)
stateDelta.Set("chaincodeID4", "key4", []byte("value4"), nil)
stateDelta.Set("chaincodeID5", "key5", []byte("value5"), nil)
stateDelta.Set("chaincodeID6", "key6", []byte("value6"), nil)
stateImplTestWrapper.prepareWorkingSet(stateDelta)
stateImplTestWrapper.persistChangesAndResetInMemoryChanges()
//check that the key is persisted
testutil.AssertEquals(t, stateImplTestWrapper.get("chaincodeID5", "key5"), []byte("value5"))
// take db snapeshot
dbSnapshot := db.GetDBHandle().GetSnapshot()
// delete keys
stateDelta.Delete("chaincodeID1", "key1", nil)
stateDelta.Delete("chaincodeID2", "key2", nil)
stateDelta.Delete("chaincodeID3", "key3", nil)
stateDelta.Delete("chaincodeID4", "key4", nil)
stateDelta.Delete("chaincodeID5", "key5", nil)
stateDelta.Delete("chaincodeID6", "key6", nil)
stateImplTestWrapper.prepareWorkingSet(stateDelta)
stateImplTestWrapper.persistChangesAndResetInMemoryChanges()
//check that the key is deleted
testutil.AssertNil(t, stateImplTestWrapper.get("chaincodeID5", "key5"))
itr, err := newStateSnapshotIterator(dbSnapshot)
testutil.AssertNoError(t, err, "Error while getting state snapeshot iterator")
numKeys := 0
for itr.Next() {
key, value := itr.GetRawKeyValue()
t.Logf("key=[%s], value=[%s]", string(key), string(value))
numKeys++
}
testutil.AssertEquals(t, numKeys, 6)
}
func TestStateTrie_ComputeHash_AllInMemory(t *testing.T) {
testDBWrapper.CreateFreshDB(t)
stateTrie := NewStateTrie()
stateTrieTestWrapper := &stateTrieTestWrapper{stateTrie, t}
stateDelta := statemgmt.NewStateDelta()
// Test1 - Add a few keys
stateDelta.Set("chaincodeID1", "key1", []byte("value1"), nil)
stateDelta.Set("chaincodeID1", "key2", []byte("value2"), nil)
stateDelta.Set("chaincodeID2", "key3", []byte("value3"), nil)
stateDelta.Set("chaincodeID2", "key4", []byte("value4"), nil)
rootHash1 := stateTrieTestWrapper.PrepareWorkingSetAndComputeCryptoHash(stateDelta)
hash1 := computeTestHash(newTrieKey("chaincodeID1", "key1").getEncodedBytes(), []byte("value1"))
hash2 := computeTestHash(newTrieKey("chaincodeID1", "key2").getEncodedBytes(), []byte("value2"))
hash3 := computeTestHash(newTrieKey("chaincodeID2", "key3").getEncodedBytes(), []byte("value3"))
hash4 := computeTestHash(newTrieKey("chaincodeID2", "key4").getEncodedBytes(), []byte("value4"))
hash1_hash2 := computeTestHash(hash1, hash2)
hash3_hash4 := computeTestHash(hash3, hash4)
expectedRootHash1 := computeTestHash(hash1_hash2, hash3_hash4)
testutil.AssertEquals(t, rootHash1, expectedRootHash1)
stateTrie.ClearWorkingSet(true)
// Test2 - Add one more key
fmt.Println("\n-- Add one more key exiting key --- ")
stateDelta.Set("chaincodeID3", "key5", []byte("value5"), nil)
rootHash2 := stateTrieTestWrapper.PrepareWorkingSetAndComputeCryptoHash(stateDelta)
hash5 := computeTestHash(newTrieKey("chaincodeID3", "key5").getEncodedBytes(), []byte("value5"))
expectedRootHash2 := computeTestHash(hash1_hash2, hash3_hash4, hash5)
testutil.AssertEquals(t, rootHash2, expectedRootHash2)
stateTrie.ClearWorkingSet(true)
// Test3 - Remove one of the existing keys
fmt.Println("\n-- Remove an exiting key --- ")
stateDelta.Delete("chaincodeID2", "key4", nil)
rootHash3 := stateTrieTestWrapper.PrepareWorkingSetAndComputeCryptoHash(stateDelta)
expectedRootHash3 := computeTestHash(hash1_hash2, hash3, hash5)
testutil.AssertEquals(t, rootHash3, expectedRootHash3)
stateTrie.ClearWorkingSet(true)
}
func TestStateTrie_ComputeHash_WithDB_Staggered_Keys(t *testing.T) {
testDBWrapper.CreateFreshDB(t)
stateTrie := NewStateTrie()
stateTrieTestWrapper := &stateTrieTestWrapper{stateTrie, t}
/////////////////////////////////////////////////////////
// Test1 - Add a few staggered keys
/////////////////////////////////////////////////////////
stateDelta := statemgmt.NewStateDelta()
stateDelta.Set("ID", "key1", []byte("value_key1"), nil)
stateDelta.Set("ID", "key", []byte("value_key"), nil)
stateDelta.Set("ID", "k", []byte("value_k"), nil)
expectedHash_key1 := computeTestHash(newTrieKey("ID", "key1").getEncodedBytes(), []byte("value_key1"))
expectedHash_key := computeTestHash(newTrieKey("ID", "key").getEncodedBytes(), []byte("value_key"), expectedHash_key1)
expectedHash_k := computeTestHash(newTrieKey("ID", "k").getEncodedBytes(), []byte("value_k"), expectedHash_key)
rootHash1 := stateTrieTestWrapper.PrepareWorkingSetAndComputeCryptoHash(stateDelta)
testutil.AssertEquals(t, rootHash1, expectedHash_k)
stateTrieTestWrapper.PersistChangesAndResetInMemoryChanges()
/////////////////////////////////////////////////////////
// Test2 - Add a new key in path of existing staggered keys
/////////////////////////////////////////////////////////
fmt.Println("- Add a new key in path of existing staggered keys -")
stateDelta = statemgmt.NewStateDelta()
stateDelta.Set("ID", "ke", []byte("value_ke"), nil)
expectedHash_ke := computeTestHash(newTrieKey("ID", "ke").getEncodedBytes(), []byte("value_ke"), expectedHash_key)
expectedHash_k = computeTestHash(newTrieKey("ID", "k").getEncodedBytes(), []byte("value_k"), expectedHash_ke)
rootHash2 := stateTrieTestWrapper.PrepareWorkingSetAndComputeCryptoHash(stateDelta)
testutil.AssertEquals(t, rootHash2, expectedHash_k)
stateTrieTestWrapper.PersistChangesAndResetInMemoryChanges()
/////////////////////////////////////////////////////////
// Test3 - Change value of one of the existing keys
/////////////////////////////////////////////////////////
stateDelta = statemgmt.NewStateDelta()
stateDelta.Set("ID", "ke", []byte("value_ke_new"), nil)
expectedHash_ke = computeTestHash(newTrieKey("ID", "ke").getEncodedBytes(), []byte("value_ke_new"), expectedHash_key)
expectedHash_k = computeTestHash(newTrieKey("ID", "k").getEncodedBytes(), []byte("value_k"), expectedHash_ke)
rootHash3 := stateTrieTestWrapper.PrepareWorkingSetAndComputeCryptoHash(stateDelta)
testutil.AssertEquals(t, rootHash3, expectedHash_k)
stateTrieTestWrapper.PersistChangesAndResetInMemoryChanges()
/////////////////////////////////////////////////////////
// Test4 - delete one of the existing keys
/////////////////////////////////////////////////////////
stateDelta = statemgmt.NewStateDelta()
stateDelta.Delete("ID", "ke", nil)
expectedHash_k = computeTestHash(newTrieKey("ID", "k").getEncodedBytes(), []byte("value_k"), expectedHash_key)
rootHash4 := stateTrieTestWrapper.PrepareWorkingSetAndComputeCryptoHash(stateDelta)
testutil.AssertEquals(t, rootHash4, expectedHash_k)
stateTrieTestWrapper.PersistChangesAndResetInMemoryChanges()
// Delete should not remove the key from db because, this key has children
testutil.AssertNotNil(t, testDBWrapper.GetFromStateCF(t, newTrieKey("ID", "ke").getEncodedBytes()))
testutil.AssertEquals(t, rootHash1, rootHash4)
//////////////////////////////////////////////////////////////
// Test4 - Add one more key as a sibling of an intermediate node
//////////////////////////////////////////////////////////////
stateDelta = statemgmt.NewStateDelta()
stateDelta.Set("ID", "kez", []byte("value_kez"), nil)
expectedHash_kez := computeTestHash(newTrieKey("ID", "kez").getEncodedBytes(), []byte("value_kez"))
expectedHash_ke = computeTestHash(expectedHash_key, expectedHash_kez)
expectedHash_k = computeTestHash(newTrieKey("ID", "k").getEncodedBytes(), []byte("value_k"), expectedHash_ke)
rootHash5 := stateTrieTestWrapper.PrepareWorkingSetAndComputeCryptoHash(stateDelta)
testutil.AssertEquals(t, rootHash5, expectedHash_k)
}
func TestLedgerSetRawState(t *testing.T) {
ledgerTestWrapper := createFreshDBAndTestLedgerWrapper(t)
ledger := ledgerTestWrapper.ledger
ledger.BeginTxBatch(1)
ledger.TxBegin("txUuid1")
ledger.SetState("chaincode1", "key1", []byte("value1"))
ledger.SetState("chaincode2", "key2", []byte("value2"))
ledger.SetState("chaincode3", "key3", []byte("value3"))
ledger.TxFinished("txUuid1", true)
transaction, _ := buildTestTx(t)
ledger.CommitTxBatch(1, []*protos.Transaction{transaction}, nil, []byte("proof"))
// Ensure values are in the DB
val := ledgerTestWrapper.GetState("chaincode1", "key1", true)
if bytes.Compare(val, []byte("value1")) != 0 {
t.Fatalf("Expected initial chaincode1 key1 to be %s, but got %s", []byte("value1"), val)
}
val = ledgerTestWrapper.GetState("chaincode2", "key2", true)
if bytes.Compare(val, []byte("value2")) != 0 {
t.Fatalf("Expected initial chaincode1 key2 to be %s, but got %s", []byte("value2"), val)
}
val = ledgerTestWrapper.GetState("chaincode3", "key3", true)
if bytes.Compare(val, []byte("value3")) != 0 {
t.Fatalf("Expected initial chaincode1 key3 to be %s, but got %s", []byte("value3"), val)
}
hash1, hash1Err := ledger.GetTempStateHash()
if hash1Err != nil {
t.Fatalf("Error getting hash1 %s", hash1Err)
}
snapshot, snapshotError := ledger.GetStateSnapshot()
if snapshotError != nil {
t.Fatalf("Error fetching snapshot %s", snapshotError)
}
defer snapshot.Release()
// Delete keys
ledger.BeginTxBatch(2)
ledger.TxBegin("txUuid2")
ledger.DeleteState("chaincode1", "key1")
ledger.DeleteState("chaincode2", "key2")
ledger.DeleteState("chaincode3", "key3")
ledger.TxFinished("txUuid2", true)
transaction, _ = buildTestTx(t)
ledger.CommitTxBatch(2, []*protos.Transaction{transaction}, nil, []byte("proof"))
// ensure keys are deleted
val = ledgerTestWrapper.GetState("chaincode1", "key1", true)
if val != nil {
t.Fatalf("Expected chaincode1 key1 to be nil, but got %s", val)
}
val = ledgerTestWrapper.GetState("chaincode2", "key2", true)
if val != nil {
t.Fatalf("Expected chaincode2 key2 to be nil, but got %s", val)
}
val = ledgerTestWrapper.GetState("chaincode3", "key3", true)
if val != nil {
t.Fatalf("Expected chaincode3 key3 to be nil, but got %s", val)
}
hash2, hash2Err := ledger.GetTempStateHash()
if hash2Err != nil {
t.Fatalf("Error getting hash2 %s", hash2Err)
}
if bytes.Compare(hash1, hash2) == 0 {
t.Fatalf("Expected hashes to not match, but they both equal %s", hash1)
}
// put key/values from the snapshot back in the DB
//var keys, values [][]byte
delta := statemgmt.NewStateDelta()
for i := 0; snapshot.Next(); i++ {
k, v := snapshot.GetRawKeyValue()
cID, keyID := statemgmt.DecodeCompositeKey(k)
delta.Set(cID, keyID, v, nil)
}
ledgerTestWrapper.ApplyStateDelta(1, delta)
ledgerTestWrapper.CommitStateDelta(1)
// Ensure values are back in the DB
val = ledgerTestWrapper.GetState("chaincode1", "key1", true)
if bytes.Compare(val, []byte("value1")) != 0 {
t.Fatalf("Expected chaincode1 key1 to be %s, but got %s", []byte("value1"), val)
}
val = ledgerTestWrapper.GetState("chaincode2", "key2", true)
if bytes.Compare(val, []byte("value2")) != 0 {
t.Fatalf("Expected chaincode1 key2 to be %s, but got %s", []byte("value2"), val)
}
val = ledgerTestWrapper.GetState("chaincode3", "key3", true)
if bytes.Compare(val, []byte("value3")) != 0 {
t.Fatalf("Expected chaincode1 key3 to be %s, but got %s", []byte("value3"), val)
}
hash3, hash3Err := ledger.GetTempStateHash()
if hash3Err != nil {
t.Fatalf("Error getting hash3 %s", hash3Err)
}
if bytes.Compare(hash1, hash3) != 0 {
t.Fatalf("Expected hashes to be equal, but they are %s and %s", hash1, hash3)
}
}
func TestStateImpl_ComputeHash_DB_2(t *testing.T) {
// number of buckets at each level 26,13,7,4,2,1
testHasher, stateImplTestWrapper, stateDelta := createFreshDBAndInitTestStateImplWithCustomHasher(t, 26, 2)
testHasher.populate("chaincodeID1", "key1", 0)
testHasher.populate("chaincodeID2", "key2", 1)
testHasher.populate("chaincodeID3", "key3", 5)
testHasher.populate("chaincodeID4", "key4", 9)
testHasher.populate("chaincodeID5", "key5", 24)
testHasher.populate("chaincodeID6", "key6", 25)
stateDelta.Set("chaincodeID1", "key1", []byte("value1"), nil)
stateDelta.Set("chaincodeID2", "key2", []byte("value2"), nil)
stateDelta.Set("chaincodeID3", "key3", []byte("value3"), nil)
stateDelta.Set("chaincodeID4", "key4", []byte("value4"), nil)
stateDelta.Set("chaincodeID5", "key5", []byte("value5"), nil)
stateDelta.Set("chaincodeID6", "key6", []byte("value6"), nil)
stateImplTestWrapper.prepareWorkingSet(stateDelta)
// Populate DB
stateImplTestWrapper.persistChangesAndResetInMemoryChanges()
//////////// Test - constrcuting a new state tree simulates starting state tree when db already has some data ////////
stateImplTestWrapper.constructNewStateImpl()
rootHash := stateImplTestWrapper.computeCryptoHash()
/*************************** bucket-tree-structure ***************
1 1 1 1 1 1
2 1 1 1 1 1
6 3 2 1 1 1
10 5 3 2 1 1
25 13 7 4 2 1
26 13 7 4 2 1
*******************************************************************/
expectedHashBucket5_1 := testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID1", "key1"), []byte("value1"))
expectedHashBucket5_2 := testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID2", "key2"), []byte("value2"))
expectedHashBucket5_6 := testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID3", "key3"), []byte("value3"))
expectedHashBucket5_10 := testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID4", "key4"), []byte("value4"))
expectedHashBucket5_25 := testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID5", "key5"), []byte("value5"))
expectedHashBucket5_26 := testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID6", "key6"), []byte("value6"))
expectedHashBucket4_1 := testutil.ComputeCryptoHash(expectedHashBucket5_1, expectedHashBucket5_2)
expectedHashBucket4_13 := testutil.ComputeCryptoHash(expectedHashBucket5_25, expectedHashBucket5_26)
expectedHashBucket2_1 := testutil.ComputeCryptoHash(expectedHashBucket4_1, expectedHashBucket5_6)
expectedHashBucket1_1 := testutil.ComputeCryptoHash(expectedHashBucket2_1, expectedHashBucket5_10)
expectedHash := testutil.ComputeCryptoHash(expectedHashBucket1_1, expectedHashBucket4_13)
testutil.AssertEquals(t, rootHash, expectedHash)
////////////// Test - Add a few more keys (include keys in the existing buckes and new buckets) /////////////////////
stateDelta = statemgmt.NewStateDelta()
testHasher.populate("chaincodeID7", "key7", 1)
testHasher.populate("chaincodeID8", "key8", 7)
testHasher.populate("chaincodeID9", "key9", 9)
testHasher.populate("chaincodeID10", "key10", 20)
stateDelta.Set("chaincodeID7", "key7", []byte("value7"), nil)
stateDelta.Set("chaincodeID8", "key8", []byte("value8"), nil)
stateDelta.Set("chaincodeID9", "key9", []byte("value9"), nil)
stateDelta.Set("chaincodeID10", "key10", []byte("value10"), nil)
/*************************** bucket-tree-structure after adding keys ***************
1 1 1 1 1 1
2 1 1 1 1 1
6 3 2 1 1 1
8 4 2 1 1 1
10 5 3 2 1 1
21 11 6 3 2 1
25 13 7 4 2 1
26 13 7 4 2 1
***********************************************************************************/
rootHash = stateImplTestWrapper.prepareWorkingSetAndComputeCryptoHash(stateDelta)
expectedHashBucket5_2 = testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID2", "key2"), []byte("value2"),
statemgmt.ConstructCompositeKey("chaincodeID7", "key7"), []byte("value7"))
expectedHashBucket5_8 := testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID8", "key8"), []byte("value8"))
expectedHashBucket5_10 = testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID4", "key4"), []byte("value4"),
statemgmt.ConstructCompositeKey("chaincodeID9", "key9"), []byte("value9"))
expectedHashBucket5_21 := testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID10", "key10"), []byte("value10"))
expectedHashBucket4_1 = testutil.ComputeCryptoHash(expectedHashBucket5_1, expectedHashBucket5_2)
expectedHashBucket3_2 := testutil.ComputeCryptoHash(expectedHashBucket5_6, expectedHashBucket5_8)
expectedHashBucket2_1 = testutil.ComputeCryptoHash(expectedHashBucket4_1, expectedHashBucket3_2)
expectedHashBucket1_1 = testutil.ComputeCryptoHash(expectedHashBucket2_1, expectedHashBucket5_10)
expectedHashBucket1_2 := testutil.ComputeCryptoHash(expectedHashBucket5_21, expectedHashBucket4_13)
expectedHash = testutil.ComputeCryptoHash(expectedHashBucket1_1, expectedHashBucket1_2)
testutil.AssertEquals(t, rootHash, expectedHash)
stateImplTestWrapper.persistChangesAndResetInMemoryChanges()
////////////// Test - overwrite an existing key /////////////////////
stateDelta = statemgmt.NewStateDelta()
stateDelta.Set("chaincodeID7", "key7", []byte("value7_new"), nil)
rootHash = stateImplTestWrapper.prepareWorkingSetAndComputeCryptoHash(stateDelta)
expectedHashBucket5_2 = testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID2", "key2"), []byte("value2"),
statemgmt.ConstructCompositeKey("chaincodeID7", "key7"), []byte("value7_new"))
expectedHashBucket4_1 = testutil.ComputeCryptoHash(expectedHashBucket5_1, expectedHashBucket5_2)
expectedHashBucket2_1 = testutil.ComputeCryptoHash(expectedHashBucket4_1, expectedHashBucket3_2)
expectedHashBucket1_1 = testutil.ComputeCryptoHash(expectedHashBucket2_1, expectedHashBucket5_10)
expectedHash = testutil.ComputeCryptoHash(expectedHashBucket1_1, expectedHashBucket1_2)
testutil.AssertEquals(t, rootHash, expectedHash)
stateImplTestWrapper.persistChangesAndResetInMemoryChanges()
testutil.AssertEquals(t, stateImplTestWrapper.get("chaincodeID7", "key7"), []byte("value7_new"))
////////////// Test - delete an existing key /////////////////////
stateDelta = statemgmt.NewStateDelta()
stateDelta.Delete("chaincodeID2", "key2", nil)
rootHash = stateImplTestWrapper.prepareWorkingSetAndComputeCryptoHash(stateDelta)
expectedHashBucket5_2 = testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID7", "key7"), []byte("value7_new"))
expectedHashBucket4_1 = testutil.ComputeCryptoHash(expectedHashBucket5_1, expectedHashBucket5_2)
expectedHashBucket2_1 = testutil.ComputeCryptoHash(expectedHashBucket4_1, expectedHashBucket3_2)
expectedHashBucket1_1 = testutil.ComputeCryptoHash(expectedHashBucket2_1, expectedHashBucket5_10)
expectedHash = testutil.ComputeCryptoHash(expectedHashBucket1_1, expectedHashBucket1_2)
testutil.AssertEquals(t, rootHash, expectedHash)
stateImplTestWrapper.persistChangesAndResetInMemoryChanges()
testutil.AssertNil(t, stateImplTestWrapper.get("chaincodeID2", "key2"))
}
func TestStateImpl_ComputeHash_AllInMemory_NoContents(t *testing.T) {
testDBWrapper.CreateFreshDB(t)
stateImplTestWrapper := newStateImplTestWrapper(t)
hash := stateImplTestWrapper.prepareWorkingSetAndComputeCryptoHash(statemgmt.NewStateDelta())
testutil.AssertEquals(t, hash, nil)
}
func TestStateTrie_ComputeHash_WithDB_Spread_Keys(t *testing.T) {
testDBWrapper.CreateFreshDB(t)
stateTrie := NewStateTrie()
stateTrieTestWrapper := &stateTrieTestWrapper{stateTrie, t}
// Add a few keys and write to DB
stateDelta := statemgmt.NewStateDelta()
stateDelta.Set("chaincodeID1", "key1", []byte("value1"), nil)
stateDelta.Set("chaincodeID1", "key2", []byte("value2"), nil)
stateDelta.Set("chaincodeID2", "key3", []byte("value3"), nil)
stateDelta.Set("chaincodeID2", "key4", []byte("value4"), nil)
stateTrie.PrepareWorkingSet(stateDelta)
stateTrieTestWrapper.PersistChangesAndResetInMemoryChanges()
/////////////////////////////////////////////////////////
// Test1 - Add a non-existing key
/////////////////////////////////////////////////////////
stateDelta = statemgmt.NewStateDelta()
stateDelta.Set("chaincodeID3", "key5", []byte("value5"), nil)
rootHash1 := stateTrieTestWrapper.PrepareWorkingSetAndComputeCryptoHash(stateDelta)
expected_hash1 := computeTestHash(newTrieKey("chaincodeID1", "key1").getEncodedBytes(), []byte("value1"))
expected_hash2 := computeTestHash(newTrieKey("chaincodeID1", "key2").getEncodedBytes(), []byte("value2"))
expected_hash3 := computeTestHash(newTrieKey("chaincodeID2", "key3").getEncodedBytes(), []byte("value3"))
expected_hash4 := computeTestHash(newTrieKey("chaincodeID2", "key4").getEncodedBytes(), []byte("value4"))
expected_hash1_hash2 := computeTestHash(expected_hash1, expected_hash2)
expected_hash3_hash4 := computeTestHash(expected_hash3, expected_hash4)
expected_hash5 := computeTestHash(newTrieKey("chaincodeID3", "key5").getEncodedBytes(), []byte("value5"))
expectedRootHash1 := computeTestHash(expected_hash1_hash2, expected_hash3_hash4, expected_hash5)
testutil.AssertEquals(t, rootHash1, expectedRootHash1)
stateTrieTestWrapper.PersistChangesAndResetInMemoryChanges()
/////////////////////////////////////////////////////////
// Test2 - Change value of an existing key
/////////////////////////////////////////////////////////
stateDelta = statemgmt.NewStateDelta()
stateDelta.Set("chaincodeID2", "key4", []byte("value4-new"), nil)
rootHash2 := stateTrieTestWrapper.PrepareWorkingSetAndComputeCryptoHash(stateDelta)
expected_hash4 = computeTestHash(newTrieKey("chaincodeID2", "key4").getEncodedBytes(), []byte("value4-new"))
expected_hash3_hash4 = computeTestHash(expected_hash3, expected_hash4)
expectedRootHash2 := computeTestHash(expected_hash1_hash2, expected_hash3_hash4, expected_hash5)
testutil.AssertEquals(t, rootHash2, expectedRootHash2)
stateTrieTestWrapper.PersistChangesAndResetInMemoryChanges()
/////////////////////////////////////////////////////////
// Test3 - Change value of another existing key
/////////////////////////////////////////////////////////
stateDelta = statemgmt.NewStateDelta()
stateDelta.Set("chaincodeID1", "key1", []byte("value1-new"), nil)
rootHash3 := stateTrieTestWrapper.PrepareWorkingSetAndComputeCryptoHash(stateDelta)
expected_hash1 = computeTestHash(newTrieKey("chaincodeID1", "key1").getEncodedBytes(), []byte("value1-new"))
expected_hash1_hash2 = computeTestHash(expected_hash1, expected_hash2)
expectedRootHash3 := computeTestHash(expected_hash1_hash2, expected_hash3_hash4, expected_hash5)
testutil.AssertEquals(t, rootHash3, expectedRootHash3)
stateTrieTestWrapper.PersistChangesAndResetInMemoryChanges()
/////////////////////////////////////////////////////////
// Test4 - Delete an existing existing key
/////////////////////////////////////////////////////////
fmt.Println("\n -- Delete an existing key --- ")
stateDelta = statemgmt.NewStateDelta()
stateDelta.Delete("chaincodeID3", "key5", nil)
rootHash4 := stateTrieTestWrapper.PrepareWorkingSetAndComputeCryptoHash(stateDelta)
expectedRootHash4 := computeTestHash(expected_hash1_hash2, expected_hash3_hash4)
testutil.AssertEquals(t, rootHash4, expectedRootHash4)
stateTrieTestWrapper.PersistChangesAndResetInMemoryChanges()
// Delete should remove the key from db because, this key has no value and no children
testutil.AssertNil(t, testDBWrapper.GetFromStateCF(t, newTrieKey("chaincodeID3", "key5").getEncodedBytes()))
/////////////////////////////////////////////////////////
// Test5 - Delete another existing existing key
/////////////////////////////////////////////////////////
stateDelta = statemgmt.NewStateDelta()
stateDelta.Delete("chaincodeID2", "key4", nil)
rootHash5 := stateTrieTestWrapper.PrepareWorkingSetAndComputeCryptoHash(stateDelta)
expectedRootHash5 := computeTestHash(expected_hash1_hash2, expected_hash3)
testutil.AssertEquals(t, rootHash5, expectedRootHash5)
stateTrieTestWrapper.PersistChangesAndResetInMemoryChanges()
testutil.AssertNil(t, testDBWrapper.GetFromStateCF(t, newTrieKey("chaincodeID2", "key4").getEncodedBytes()))
}
// ClearInMemoryChanges remove from memory all the changes to state
func (state *State) ClearInMemoryChanges(changesPersisted bool) {
state.stateDelta = statemgmt.NewStateDelta()
state.txStateDeltaHash = make(map[string][]byte)
state.stateImpl.ClearWorkingSet(changesPersisted)
}
func TestRangeScanIterator(t *testing.T) {
testDBWrapper.CreateFreshDB(t)
stateTrieTestWrapper := newStateTrieTestWrapper(t)
stateTrie := stateTrieTestWrapper.stateTrie
stateDelta := statemgmt.NewStateDelta()
// insert keys
stateDelta.Set("chaincodeID1", "key1", []byte("value1"), nil)
stateDelta.Set("chaincodeID2", "key1", []byte("value1"), nil)
stateDelta.Set("chaincodeID2", "key2", []byte("value2"), nil)
stateDelta.Set("chaincodeID2", "key3", []byte("value3"), nil)
stateDelta.Set("chaincodeID2", "key4", []byte("value4"), nil)
stateDelta.Set("chaincodeID2", "key5", []byte("value5"), nil)
stateDelta.Set("chaincodeID2", "key6", []byte("value6"), nil)
stateDelta.Set("chaincodeID2", "key7", []byte("value7"), nil)
stateDelta.Set("chaincodeID3", "key1", []byte("value1"), nil)
stateDelta.Set("chaincodeID4", "key1", []byte("value1"), nil)
stateDelta.Set("chaincodeID4", "key2", []byte("value2"), nil)
stateDelta.Set("chaincodeID4", "key3", []byte("value3"), nil)
stateDelta.Set("chaincodeID4", "key4", []byte("value4"), nil)
stateDelta.Set("chaincodeID4", "key5", []byte("value5"), nil)
stateDelta.Set("chaincodeID4", "key6", []byte("value6"), nil)
stateDelta.Set("chaincodeID4", "key7", []byte("value7"), nil)
stateDelta.Set("chaincodeID5", "key1", []byte("value5"), nil)
stateDelta.Set("chaincodeID6", "key1", []byte("value6"), nil)
stateTrie.PrepareWorkingSet(stateDelta)
stateTrieTestWrapper.PersistChangesAndResetInMemoryChanges()
// test range scan for chaincodeID2
rangeScanItr, _ := stateTrie.GetRangeScanIterator("chaincodeID2", "key2", "key5")
var results = make(map[string][]byte)
for rangeScanItr.Next() {
key, value := rangeScanItr.GetKeyValue()
results[key] = value
}
t.Logf("Results = %s", results)
testutil.AssertEquals(t, len(results), 4)
testutil.AssertEquals(t, results["key2"], []byte("value2"))
testutil.AssertEquals(t, results["key3"], []byte("value3"))
testutil.AssertEquals(t, results["key4"], []byte("value4"))
testutil.AssertEquals(t, results["key5"], []byte("value5"))
rangeScanItr.Close()
// test range scan for chaincodeID4
rangeScanItr, _ = stateTrie.GetRangeScanIterator("chaincodeID2", "key3", "key6")
results = make(map[string][]byte)
for rangeScanItr.Next() {
key, value := rangeScanItr.GetKeyValue()
results[key] = value
}
t.Logf("Results = %s", results)
testutil.AssertEquals(t, len(results), 4)
testutil.AssertEquals(t, results["key3"], []byte("value3"))
testutil.AssertEquals(t, results["key4"], []byte("value4"))
testutil.AssertEquals(t, results["key5"], []byte("value5"))
testutil.AssertEquals(t, results["key6"], []byte("value6"))
rangeScanItr.Close()
// test range scan for chaincodeID2 starting from first key
rangeScanItr, _ = stateTrie.GetRangeScanIterator("chaincodeID2", "", "key5")
results = make(map[string][]byte)
for rangeScanItr.Next() {
key, value := rangeScanItr.GetKeyValue()
results[key] = value
}
t.Logf("Results = %s", results)
testutil.AssertEquals(t, len(results), 5)
testutil.AssertEquals(t, results["key1"], []byte("value1"))
testutil.AssertEquals(t, results["key2"], []byte("value2"))
testutil.AssertEquals(t, results["key3"], []byte("value3"))
testutil.AssertEquals(t, results["key4"], []byte("value4"))
testutil.AssertEquals(t, results["key5"], []byte("value5"))
rangeScanItr.Close()
// test range scan for all the keys in chaincodeID2 starting from first key
rangeScanItr, _ = stateTrie.GetRangeScanIterator("chaincodeID2", "", "")
results = make(map[string][]byte)
for rangeScanItr.Next() {
key, value := rangeScanItr.GetKeyValue()
results[key] = value
}
t.Logf("Results = %s", results)
testutil.AssertEquals(t, len(results), 7)
testutil.AssertEquals(t, results["key1"], []byte("value1"))
testutil.AssertEquals(t, results["key2"], []byte("value2"))
testutil.AssertEquals(t, results["key3"], []byte("value3"))
testutil.AssertEquals(t, results["key4"], []byte("value4"))
testutil.AssertEquals(t, results["key5"], []byte("value5"))
testutil.AssertEquals(t, results["key6"], []byte("value6"))
testutil.AssertEquals(t, results["key7"], []byte("value7"))
rangeScanItr.Close()
}
func TestStateImpl_ComputeHash_DB_1(t *testing.T) {
// number of buckets at each level 26,9,3,1
testHasher, stateImplTestWrapper, stateDelta := createFreshDBAndInitTestStateImplWithCustomHasher(t, 26, 3)
// populate hash fucntion such that
// all keys belong to a single bucket so as to test overwrite/delete scenario
testHasher.populate("chaincodeID1", "key1", 3)
testHasher.populate("chaincodeID2", "key2", 3)
testHasher.populate("chaincodeID3", "key3", 3)
testHasher.populate("chaincodeID4", "key4", 3)
testHasher.populate("chaincodeID5", "key5", 3)
testHasher.populate("chaincodeID6", "key6", 3)
testHasher.populate("chaincodeID7", "key7", 3)
stateDelta.Set("chaincodeID2", "key2", []byte("value2"), nil)
stateDelta.Set("chaincodeID3", "key3", []byte("value3"), nil)
stateDelta.Set("chaincodeID5", "key5", []byte("value5"), nil)
stateDelta.Set("chaincodeID6", "key6", []byte("value6"), nil)
rootHash := stateImplTestWrapper.prepareWorkingSetAndComputeCryptoHash(stateDelta)
stateImplTestWrapper.persistChangesAndResetInMemoryChanges()
expectedHash1 := testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID2", "key2"), []byte("value2"),
statemgmt.ConstructCompositeKey("chaincodeID3", "key3"), []byte("value3"),
statemgmt.ConstructCompositeKey("chaincodeID5", "key5"), []byte("value5"),
statemgmt.ConstructCompositeKey("chaincodeID6", "key6"), []byte("value6"))
testutil.AssertEquals(t, rootHash, expectedHash1)
// modify boundary keys and a middle key
stateDelta = statemgmt.NewStateDelta()
stateDelta.Set("chaincodeID2", "key2", []byte("value2_new"), nil)
stateDelta.Set("chaincodeID3", "key3", []byte("value3_new"), nil)
stateDelta.Set("chaincodeID6", "key6", []byte("value6_new"), nil)
rootHash = stateImplTestWrapper.prepareWorkingSetAndComputeCryptoHash(stateDelta)
stateImplTestWrapper.persistChangesAndResetInMemoryChanges()
expectedHash2 := testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID2", "key2"), []byte("value2_new"),
statemgmt.ConstructCompositeKey("chaincodeID3", "key3"), []byte("value3_new"),
statemgmt.ConstructCompositeKey("chaincodeID5", "key5"), []byte("value5"),
statemgmt.ConstructCompositeKey("chaincodeID6", "key6"), []byte("value6_new"))
testutil.AssertEquals(t, rootHash, expectedHash2)
testutil.AssertEquals(t, stateImplTestWrapper.get("chaincodeID2", "key2"), []byte("value2_new"))
testutil.AssertEquals(t, stateImplTestWrapper.get("chaincodeID3", "key3"), []byte("value3_new"))
testutil.AssertEquals(t, stateImplTestWrapper.get("chaincodeID6", "key6"), []byte("value6_new"))
// insert keys at boundary and in the middle
stateDelta = statemgmt.NewStateDelta()
stateDelta.Set("chaincodeID1", "key1", []byte("value1"), nil)
stateDelta.Set("chaincodeID4", "key4", []byte("value4"), nil)
stateDelta.Set("chaincodeID7", "key7", []byte("value7"), nil)
rootHash = stateImplTestWrapper.prepareWorkingSetAndComputeCryptoHash(stateDelta)
stateImplTestWrapper.persistChangesAndResetInMemoryChanges()
expectedHash3 := testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID1", "key1"), []byte("value1"),
statemgmt.ConstructCompositeKey("chaincodeID2", "key2"), []byte("value2_new"),
statemgmt.ConstructCompositeKey("chaincodeID3", "key3"), []byte("value3_new"),
statemgmt.ConstructCompositeKey("chaincodeID4", "key4"), []byte("value4"),
statemgmt.ConstructCompositeKey("chaincodeID5", "key5"), []byte("value5"),
statemgmt.ConstructCompositeKey("chaincodeID6", "key6"), []byte("value6_new"),
statemgmt.ConstructCompositeKey("chaincodeID7", "key7"), []byte("value7"))
testutil.AssertEquals(t, rootHash, expectedHash3)
testutil.AssertEquals(t, stateImplTestWrapper.get("chaincodeID1", "key1"), []byte("value1"))
testutil.AssertEquals(t, stateImplTestWrapper.get("chaincodeID4", "key4"), []byte("value4"))
testutil.AssertEquals(t, stateImplTestWrapper.get("chaincodeID7", "key7"), []byte("value7"))
// delete keys at a boundary and in the middle
stateDelta = statemgmt.NewStateDelta()
stateDelta.Delete("chaincodeID1", "key1", nil)
stateDelta.Delete("chaincodeID4", "key4", nil)
stateDelta.Delete("chaincodeID7", "key7", nil)
rootHash = stateImplTestWrapper.prepareWorkingSetAndComputeCryptoHash(stateDelta)
stateImplTestWrapper.persistChangesAndResetInMemoryChanges()
testutil.AssertEquals(t, rootHash, expectedHash2)
testutil.AssertNil(t, stateImplTestWrapper.get("chaincodeID1", "key1"))
testutil.AssertNil(t, stateImplTestWrapper.get("chaincodeID4", "key4"))
testutil.AssertNil(t, stateImplTestWrapper.get("chaincodeID7", "key7"))
}
func (testWrapper *stateTestWrapper) fetchStateDeltaFromDB(blockNumber uint64) *statemgmt.StateDelta {
delta := statemgmt.NewStateDelta()
delta.Unmarshal(testDBWrapper.GetFromStateDeltaCF(testWrapper.t, encodeStateDeltaKey(blockNumber)))
return delta
}