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verifier.go
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verifier.go
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/*
Copyright IBM Corp. All Rights Reserved.
SPDX-License-Identifier: Apache-2.0
*/
package tests
import (
"testing"
"github.com/davecgh/go-spew/spew"
"github.com/golang/protobuf/proto"
"github.com/hyperledger/fabric-protos-go/common"
"github.com/hyperledger/fabric-protos-go/ledger/queryresult"
"github.com/hyperledger/fabric-protos-go/ledger/rwset/kvrwset"
protopeer "github.com/hyperledger/fabric-protos-go/peer"
"github.com/hyperledger/fabric/core/ledger"
lgrutil "github.com/hyperledger/fabric/core/ledger/util"
"github.com/stretchr/testify/assert"
)
// verifier provides functions that help tests with less verbose code for querying the ledger
// and verifying the actual results with the expected results
// For the straight forward functions, tests can call them directly on the ledger
type verifier struct {
lgr ledger.PeerLedger
assert *assert.Assertions
t *testing.T
}
func newVerifier(lgr ledger.PeerLedger, t *testing.T) *verifier {
return &verifier{lgr, assert.New(t), t}
}
func (v *verifier) verifyLedgerHeight(expectedHt uint64) {
info, err := v.lgr.GetBlockchainInfo()
v.assert.NoError(err)
v.assert.Equal(expectedHt, info.Height)
}
func (v *verifier) verifyPubState(ns, key string, expectedVal string) {
qe, err := v.lgr.NewQueryExecutor()
v.assert.NoError(err)
defer qe.Done()
committedVal, err := qe.GetState(ns, key)
v.assert.NoError(err)
v.t.Logf("val=%s", committedVal)
var expectedValBytes []byte
if expectedVal != "" {
expectedValBytes = []byte(expectedVal)
}
v.assert.Equal(expectedValBytes, committedVal)
}
func (v *verifier) verifyPvtState(ns, coll, key string, expectedVal string) {
qe, err := v.lgr.NewQueryExecutor()
v.assert.NoError(err)
defer qe.Done()
committedVal, err := qe.GetPrivateData(ns, coll, key)
v.assert.NoError(err)
v.t.Logf("val=%s", committedVal)
var expectedValBytes []byte
if expectedVal != "" {
expectedValBytes = []byte(expectedVal)
}
v.assert.Equal(expectedValBytes, committedVal)
}
func (v *verifier) verifyMostRecentCollectionConfigBelow(blockNum uint64, chaincodeName string, expectOut *expectedCollConfInfo) {
configHistory, err := v.lgr.GetConfigHistoryRetriever()
v.assert.NoError(err)
actualCollectionConfigInfo, err := configHistory.MostRecentCollectionConfigBelow(blockNum, chaincodeName)
v.assert.NoError(err)
if expectOut == nil {
v.assert.Nil(actualCollectionConfigInfo)
return
}
v.t.Logf("Retrieved CollectionConfigInfo=%s", spew.Sdump(actualCollectionConfigInfo))
actualCommittingBlockNum := actualCollectionConfigInfo.CommittingBlockNum
actualCollConf := convertFromCollConfigProto(actualCollectionConfigInfo.CollectionConfig)
v.assert.Equal(expectOut.committingBlockNum, actualCommittingBlockNum)
v.assert.Equal(expectOut.collConfs, actualCollConf)
}
func (v *verifier) verifyBlockAndPvtData(blockNum uint64, filter ledger.PvtNsCollFilter, verifyLogic func(r *retrievedBlockAndPvtdata)) {
out, err := v.lgr.GetPvtDataAndBlockByNum(blockNum, filter)
v.assert.NoError(err)
v.t.Logf("Retrieved Block = %s, pvtdata = %s", spew.Sdump(out.Block), spew.Sdump(out.PvtData))
verifyLogic(&retrievedBlockAndPvtdata{out, v.assert})
}
func (v *verifier) verifyBlockAndPvtDataSameAs(blockNum uint64, expectedOut *ledger.BlockAndPvtData) {
v.verifyBlockAndPvtData(blockNum, nil, func(r *retrievedBlockAndPvtdata) {
r.sameAs(expectedOut)
})
}
func (v *verifier) verifyMissingPvtDataSameAs(recentNBlocks int, expectedMissingData ledger.MissingPvtDataInfo) {
missingDataTracker, err := v.lgr.GetMissingPvtDataTracker()
v.assert.NoError(err)
missingPvtData, err := missingDataTracker.GetMissingPvtDataInfoForMostRecentBlocks(recentNBlocks)
v.assert.NoError(err)
v.assert.Equal(expectedMissingData, missingPvtData)
}
func (v *verifier) verifyGetTransactionByID(txid string, expectedOut *protopeer.ProcessedTransaction) {
tran, err := v.lgr.GetTransactionByID(txid)
v.assert.NoError(err)
envelopEqual := proto.Equal(expectedOut.TransactionEnvelope, tran.TransactionEnvelope)
v.assert.True(envelopEqual)
v.assert.Equal(expectedOut.ValidationCode, tran.ValidationCode)
}
func (v *verifier) verifyTxValidationCode(txid string, expectedCode protopeer.TxValidationCode) {
tran, err := v.lgr.GetTransactionByID(txid)
v.assert.NoError(err)
v.assert.Equal(int32(expectedCode), tran.ValidationCode)
}
func (v *verifier) verifyHistory(ns, key string, expectedVals []string) {
hqe, err := v.lgr.NewHistoryQueryExecutor()
v.assert.NoError(err)
itr, err := hqe.GetHistoryForKey(ns, key)
v.assert.NoError(err)
historyValues := []string{}
for {
result, err := itr.Next()
v.assert.NoError(err)
if result == nil {
break
}
historyValues = append(historyValues, string(result.(*queryresult.KeyModification).GetValue()))
}
v.assert.Equal(expectedVals, historyValues)
}
//////////// structs used by verifier //////////////////////////////////////////////////////////////
type expectedCollConfInfo struct {
committingBlockNum uint64
collConfs []*collConf
}
type retrievedBlockAndPvtdata struct {
*ledger.BlockAndPvtData
assert *assert.Assertions
}
func (r *retrievedBlockAndPvtdata) sameAs(expectedBlockAndPvtdata *ledger.BlockAndPvtData) {
r.samePvtdata(expectedBlockAndPvtdata.PvtData)
r.sameBlockHeaderAndData(expectedBlockAndPvtdata.Block)
r.sameMetadata(expectedBlockAndPvtdata.Block)
}
func (r *retrievedBlockAndPvtdata) hasNumTx(numTx int) {
r.assert.Len(r.Block.Data.Data, numTx)
}
func (r *retrievedBlockAndPvtdata) hasNoPvtdata() {
r.assert.Len(r.PvtData, 0)
}
func (r *retrievedBlockAndPvtdata) pvtdataShouldContain(txSeq int, ns, coll, key, value string) {
txPvtData := r.BlockAndPvtData.PvtData[uint64(txSeq)]
for _, nsdata := range txPvtData.WriteSet.NsPvtRwset {
if nsdata.Namespace == ns {
for _, colldata := range nsdata.CollectionPvtRwset {
if colldata.CollectionName == coll {
rwset := &kvrwset.KVRWSet{}
r.assert.NoError(proto.Unmarshal(colldata.Rwset, rwset))
for _, w := range rwset.Writes {
if w.Key == key {
r.assert.Equal([]byte(value), w.Value)
return
}
}
}
}
}
}
r.assert.FailNow("Requested kv not found")
}
func (r *retrievedBlockAndPvtdata) pvtdataShouldNotContain(ns, coll string) {
allTxPvtData := r.BlockAndPvtData.PvtData
for _, txPvtData := range allTxPvtData {
r.assert.False(txPvtData.Has(ns, coll))
}
}
func (r *retrievedBlockAndPvtdata) sameBlockHeaderAndData(expectedBlock *common.Block) {
r.assert.True(proto.Equal(expectedBlock.Data, r.BlockAndPvtData.Block.Data))
r.assert.True(proto.Equal(expectedBlock.Header, r.BlockAndPvtData.Block.Header))
}
func (r *retrievedBlockAndPvtdata) sameMetadata(expectedBlock *common.Block) {
// marshalling/unmarshalling treats a nil byte and empty byte interchangeably (based on which scheme is chosen proto vs gob)
// so explicitly comparing each metadata
retrievedMetadata := r.Block.Metadata.Metadata
expectedMetadata := expectedBlock.Metadata.Metadata
r.assert.Equal(len(expectedMetadata), len(retrievedMetadata))
for i := 0; i < len(expectedMetadata); i++ {
if len(expectedMetadata[i])+len(retrievedMetadata[i]) != 0 {
if i != int(common.BlockMetadataIndex_COMMIT_HASH) {
r.assert.Equal(expectedMetadata[i], retrievedMetadata[i])
} else {
// in order to compare the exact hash value, we need to duplicate the
// production code in this test too (which is not recommended).
commitHash := &common.Metadata{}
err := proto.Unmarshal(retrievedMetadata[common.BlockMetadataIndex_COMMIT_HASH],
commitHash)
r.assert.NoError(err)
r.assert.Equal(len(commitHash.Value), 32)
}
}
}
}
func (r *retrievedBlockAndPvtdata) containsValidationCode(txSeq int, validationCode protopeer.TxValidationCode) {
var txFilter lgrutil.TxValidationFlags
txFilter = r.BlockAndPvtData.Block.Metadata.Metadata[common.BlockMetadataIndex_TRANSACTIONS_FILTER]
r.assert.Equal(validationCode, txFilter.Flag(txSeq))
}
func (r *retrievedBlockAndPvtdata) samePvtdata(expectedPvtdata map[uint64]*ledger.TxPvtData) {
r.assert.Equal(len(expectedPvtdata), len(r.BlockAndPvtData.PvtData))
for txNum, pvtData := range expectedPvtdata {
actualPvtData := r.BlockAndPvtData.PvtData[txNum]
r.assert.Equal(pvtData.SeqInBlock, actualPvtData.SeqInBlock)
r.assert.True(proto.Equal(pvtData.WriteSet, actualPvtData.WriteSet))
}
}