// TestBasicRW tests basic read-write
func TestBasicRW(t *testing.T, db statedb.VersionedDB) {
db.Open()
defer db.Close()
val, err := db.GetState("ns", "key1")
testutil.AssertNoError(t, err, "")
testutil.AssertNil(t, val)
batch := statedb.NewUpdateBatch()
vv1 := statedb.VersionedValue{Value: []byte("value1"), Version: version.NewHeight(1, 1)}
vv2 := statedb.VersionedValue{Value: []byte("value2"), Version: version.NewHeight(1, 2)}
vv3 := statedb.VersionedValue{Value: []byte("value3"), Version: version.NewHeight(1, 3)}
vv4 := statedb.VersionedValue{Value: []byte{}, Version: version.NewHeight(1, 4)}
batch.Put("ns1", "key1", vv1.Value, vv1.Version)
batch.Put("ns1", "key2", vv2.Value, vv2.Version)
batch.Put("ns2", "key3", vv3.Value, vv3.Version)
batch.Put("ns2", "key4", vv4.Value, vv4.Version)
savePoint := version.NewHeight(2, 5)
db.ApplyUpdates(batch, savePoint)
vv, _ := db.GetState("ns1", "key1")
testutil.AssertEquals(t, vv, &vv1)
vv, _ = db.GetState("ns2", "key4")
testutil.AssertEquals(t, vv, &vv4)
sp, err := db.GetLatestSavePoint()
testutil.AssertNoError(t, err, "")
testutil.AssertEquals(t, sp, savePoint)
}
func TestTxRWSetMarshalUnmarshal(t *testing.T) {
txRW := &TxReadWriteSet{}
nsRW1 := &NsReadWriteSet{"ns1",
[]*KVRead{&KVRead{"key1", version.NewHeight(1, 1)}},
[]*KVWrite{&KVWrite{"key2", false, []byte("value2")}}}
nsRW2 := &NsReadWriteSet{"ns2",
[]*KVRead{&KVRead{"key3", version.NewHeight(1, 2)}},
[]*KVWrite{&KVWrite{"key4", true, nil}}}
nsRW3 := &NsReadWriteSet{"ns3",
[]*KVRead{&KVRead{"key5", version.NewHeight(1, 3)}},
[]*KVWrite{&KVWrite{"key6", false, []byte("value6")}, &KVWrite{"key7", false, []byte("value7")}}}
txRW.NsRWs = append(txRW.NsRWs, nsRW1, nsRW2, nsRW3)
b, err := txRW.Marshal()
testutil.AssertNoError(t, err, "Error while marshalling changeset")
deserializedRWSet := &TxReadWriteSet{}
err = deserializedRWSet.Unmarshal(b)
testutil.AssertNoError(t, err, "Error while unmarshalling changeset")
t.Logf("Unmarshalled changeset = %#+v", deserializedRWSet.NsRWs[0].Writes[0].IsDelete)
testutil.AssertEquals(t, deserializedRWSet, txRW)
}
// TestIterator tests the iterator
func TestIterator(t *testing.T, db statedb.VersionedDB) {
db.Open()
defer db.Close()
batch := statedb.NewUpdateBatch()
batch.Put("ns1", "key1", []byte("value1"), version.NewHeight(1, 1))
batch.Put("ns1", "key2", []byte("value2"), version.NewHeight(1, 2))
batch.Put("ns1", "key3", []byte("value3"), version.NewHeight(1, 3))
batch.Put("ns1", "key4", []byte("value4"), version.NewHeight(1, 4))
batch.Put("ns2", "key5", []byte("value5"), version.NewHeight(1, 5))
batch.Put("ns2", "key6", []byte("value6"), version.NewHeight(1, 6))
batch.Put("ns3", "key7", []byte("value7"), version.NewHeight(1, 7))
savePoint := version.NewHeight(2, 5)
db.ApplyUpdates(batch, savePoint)
itr1, _ := db.GetStateRangeScanIterator("ns1", "key1", "")
testItr(t, itr1, []string{"key1", "key2", "key3", "key4"})
itr2, _ := db.GetStateRangeScanIterator("ns1", "key2", "key3")
testItr(t, itr2, []string{"key2"})
itr3, _ := db.GetStateRangeScanIterator("ns1", "", "")
testItr(t, itr3, []string{"key1", "key2", "key3", "key4"})
itr4, _ := db.GetStateRangeScanIterator("ns2", "", "")
testItr(t, itr4, []string{"key5", "key6"})
}
// TestDeletes tests deteles
func TestDeletes(t *testing.T, db statedb.VersionedDB) {
db.Open()
defer db.Close()
batch := statedb.NewUpdateBatch()
vv1 := statedb.VersionedValue{Value: []byte("value1"), Version: version.NewHeight(1, 1)}
vv2 := statedb.VersionedValue{Value: []byte("value2"), Version: version.NewHeight(1, 2)}
vv3 := statedb.VersionedValue{Value: []byte("value1"), Version: version.NewHeight(1, 3)}
vv4 := statedb.VersionedValue{Value: []byte("value2"), Version: version.NewHeight(1, 4)}
batch.Put("ns", "key1", vv1.Value, vv1.Version)
batch.Put("ns", "key2", vv2.Value, vv2.Version)
batch.Put("ns", "key3", vv2.Value, vv3.Version)
batch.Put("ns", "key4", vv2.Value, vv4.Version)
batch.Delete("ns", "key3", version.NewHeight(1, 5))
savePoint := version.NewHeight(1, 5)
err := db.ApplyUpdates(batch, savePoint)
testutil.AssertNoError(t, err, "")
vv, _ := db.GetState("ns", "key2")
testutil.AssertEquals(t, vv, &vv2)
vv, err = db.GetState("ns", "key3")
testutil.AssertNoError(t, err, "")
testutil.AssertNil(t, vv)
batch = statedb.NewUpdateBatch()
batch.Delete("ns", "key2", version.NewHeight(1, 6))
err = db.ApplyUpdates(batch, savePoint)
testutil.AssertNoError(t, err, "")
vv, err = db.GetState("ns", "key2")
testutil.AssertNoError(t, err, "")
testutil.AssertNil(t, vv)
}
// ValidateAndPrepareBatch implements method in Validator interface
func (v *Validator) ValidateAndPrepareBatch(block *common.Block, doMVCCValidation bool) (*statedb.UpdateBatch, error) {
logger.Debugf("New block arrived for validation:%#v, doMVCCValidation=%t", block, doMVCCValidation)
var valid bool
updates := statedb.NewUpdateBatch()
logger.Debugf("Validating a block with [%d] transactions", len(block.Data.Data))
txsFilter := util.NewFilterBitArrayFromBytes(block.Metadata.Metadata[common.BlockMetadataIndex_TRANSACTIONS_FILTER])
for txIndex, envBytes := range block.Data.Data {
if txsFilter.IsSet(uint(txIndex)) {
// Skiping invalid transaction
logger.Debug("Skipping transaction marked as invalid, txIndex=", txIndex)
continue
}
// extract actions from the envelope message
respPayload, err := putils.GetActionFromEnvelope(envBytes)
if err != nil {
return nil, err
}
//preparation for extracting RWSet from transaction
txRWSet := &rwset.TxReadWriteSet{}
// Get the Result from the Action
// and then Unmarshal it into a TxReadWriteSet using custom unmarshalling
if err = txRWSet.Unmarshal(respPayload.Results); err != nil {
return nil, err
}
// trace the first 2000 characters of RWSet only, in case it is huge
if logger.IsEnabledFor(logging.DEBUG) {
txRWSetString := txRWSet.String()
if len(txRWSetString) < 2000 {
logger.Debugf("validating txRWSet:[%s]", txRWSetString)
} else {
logger.Debugf("validating txRWSet:[%s...]", txRWSetString[0:2000])
}
}
if !doMVCCValidation {
valid = true
} else if valid, err = v.validateTx(txRWSet, updates); err != nil {
return nil, err
}
if valid {
committingTxHeight := version.NewHeight(block.Header.Number, uint64(txIndex+1))
addWriteSetToBatch(txRWSet, committingTxHeight, updates)
} else {
// Unset bit in byte array corresponded to the invalid transaction
txsFilter.Set(uint(txIndex))
}
}
block.Metadata.Metadata[common.BlockMetadataIndex_TRANSACTIONS_FILTER] = txsFilter.ToBytes()
return updates, nil
}
func testTxSimulatorWithExistingData(t *testing.T, env testEnv) {
txMgr := env.getTxMgr()
txMgrHelper := newTxMgrTestHelper(t, txMgr)
// simulate tx1
s1, _ := txMgr.NewTxSimulator()
s1.SetState("ns1", "key1", []byte("value1"))
s1.SetState("ns1", "key2", []byte("value2"))
s1.SetState("ns2", "key3", []byte("value3"))
s1.SetState("ns2", "key4", []byte("value4"))
s1.Done()
// validate and commit RWset
txRWSet1, _ := s1.GetTxSimulationResults()
txMgrHelper.validateAndCommitRWSet(txRWSet1)
// simulate tx2 that make changes to existing data
s2, _ := txMgr.NewTxSimulator()
value, _ := s2.GetState("ns1", "key1")
testutil.AssertEquals(t, value, []byte("value1"))
s2.SetState("ns1", "key1", []byte("value1_1"))
s2.DeleteState("ns2", "key3")
value, _ = s2.GetState("ns1", "key1")
testutil.AssertEquals(t, value, []byte("value1_1"))
s2.Done()
// validate and commit RWset for tx2
txRWSet2, _ := s2.GetTxSimulationResults()
txMgrHelper.validateAndCommitRWSet(txRWSet2)
// simulate tx3
s3, _ := txMgr.NewTxSimulator()
value, _ = s3.GetState("ns1", "key1")
testutil.AssertEquals(t, value, []byte("value1_1"))
value, _ = s3.GetState("ns2", "key3")
testutil.AssertEquals(t, value, nil)
s3.Done()
// verify the versions of keys in persistence
vv, _ := env.getVDB().GetState("ns1", "key1")
testutil.AssertEquals(t, vv.Version, version.NewHeight(2, 1))
vv, _ = env.getVDB().GetState("ns1", "key2")
testutil.AssertEquals(t, vv.Version, version.NewHeight(1, 1))
}
func TestValidator(t *testing.T) {
testDBEnv := stateleveldb.NewTestVDBEnv(t, testDBPath)
defer testDBEnv.Cleanup()
db := testDBEnv.DB
//populate db with initial data
batch := statedb.NewUpdateBatch()
batch.Put("ns1", "key1", []byte("value1"), version.NewHeight(1, 1))
batch.Put("ns1", "key2", []byte("value2"), version.NewHeight(1, 2))
batch.Put("ns1", "key3", []byte("value3"), version.NewHeight(1, 3))
batch.Put("ns1", "key4", []byte("value4"), version.NewHeight(1, 4))
batch.Put("ns1", "key5", []byte("value5"), version.NewHeight(1, 5))
db.ApplyUpdates(batch, version.NewHeight(1, 5))
validator := NewValidator(db)
//rwset1 should be valid
rwset1 := rwset.NewRWSet()
rwset1.AddToReadSet("ns1", "key1", version.NewHeight(1, 1))
rwset1.AddToReadSet("ns2", "key2", nil)
checkValidation(t, validator, []*rwset.RWSet{rwset1}, []int{})
//rwset2 should not be valid
rwset2 := rwset.NewRWSet()
rwset2.AddToReadSet("ns1", "key1", version.NewHeight(1, 2))
checkValidation(t, validator, []*rwset.RWSet{rwset2}, []int{0})
//rwset3 should not be valid
rwset3 := rwset.NewRWSet()
rwset3.AddToReadSet("ns1", "key1", nil)
checkValidation(t, validator, []*rwset.RWSet{rwset3}, []int{0})
// rwset4 and rwset5 within same block - rwset4 should be valid and makes rwset5 as invalid
rwset4 := rwset.NewRWSet()
rwset4.AddToReadSet("ns1", "key1", version.NewHeight(1, 1))
rwset4.AddToWriteSet("ns1", "key1", []byte("value1_new"))
rwset5 := rwset.NewRWSet()
rwset5.AddToReadSet("ns1", "key1", version.NewHeight(1, 1))
checkValidation(t, validator, []*rwset.RWSet{rwset4, rwset5}, []int{1})
}
func (scanner *queryScanner) next() (*queryRecord, error) {
scanner.cursor++
if scanner.cursor >= len(scanner.results) {
return nil, nil
}
selectedValue := scanner.results[scanner.cursor]
namespace, key := splitCompositeKey([]byte(selectedValue.ID))
//TODO - change hardcoded version when version support is available in CouchDB
return &queryRecord{namespace, key, version.NewHeight(1, 1), selectedValue.Value}, nil
}
func (scanner *kvScanner) next() (*committedKV, error) {
scanner.cursor++
if scanner.cursor >= len(scanner.results) {
return nil, nil
}
selectedValue := scanner.results[scanner.cursor]
_, key := splitCompositeKey([]byte(selectedValue.ID))
//TODO - change hardcoded version when version support is available in CouchDB
return &committedKV{key, version.NewHeight(1, 1), selectedValue.Value}, nil
}
// Commit implements method in interface `txmgmt.TxMgr`
func (txmgr *LockBasedTxMgr) Commit() error {
logger.Debugf("Commiting block")
txmgr.commitRWLock.Lock()
defer txmgr.commitRWLock.Unlock()
logger.Debugf("Write lock aquired for commiting block")
if txmgr.batch == nil {
panic("validateAndPrepare() method should have been called before calling commit()")
}
defer func() { txmgr.batch = nil }()
if err := txmgr.db.ApplyUpdates(txmgr.batch,
version.NewHeight(txmgr.currentBlock.Header.Number, uint64(len(txmgr.currentBlock.Data.Data)))); err != nil {
return err
}
logger.Debugf("Block committed")
return nil
}
func (txmgr *CouchDBTxMgr) getCommittedValueAndVersion(ns string, key string) ([]byte, *version.Height, error) {
compositeKey := constructCompositeKey(ns, key)
docBytes, _, _ := txmgr.couchDB.ReadDoc(string(compositeKey)) // TODO add error handling
// trace the first 200 bytes of value only, in case it is huge
if docBytes != nil && logger.IsEnabledFor(logging.DEBUG) {
if len(docBytes) < 200 {
logger.Debugf("===COUCHDB=== getCommittedValueAndVersion() Read docBytes %s", docBytes)
} else {
logger.Debugf("===COUCHDB=== getCommittedValueAndVersion() Read docBytes %s...", docBytes[0:200])
}
}
ver := version.NewHeight(1, 1) //TODO - version hardcoded to 1 is a temporary value for the prototype
return docBytes, ver, nil
}
//QueryDocuments method provides function for processing a query
func (dbclient *CouchDBConnectionDef) QueryDocuments(query string, limit, skip int) (*[]QueryResult, error) {
logger.Debugf("===COUCHDB=== Entering QueryDocuments() query=%s", query)
var results []QueryResult
queryURL, err := url.Parse(dbclient.URL)
if err != nil {
logger.Errorf("===COUCHDB=== URL parse error: %s", err.Error())
return nil, err
}
queryURL.Path = dbclient.Database + "/_find"
queryParms := queryURL.Query()
queryParms.Set("limit", strconv.Itoa(limit))
queryParms.Add("skip", strconv.Itoa(skip))
queryURL.RawQuery = queryParms.Encode()
//Set up a buffer for the data to be pushed to couchdb
data := new(bytes.Buffer)
data.ReadFrom(bytes.NewReader([]byte(query)))
resp, _, err := dbclient.handleRequest(http.MethodPost, queryURL.String(), data, "", "")
if err != nil {
return nil, err
}
defer resp.Body.Close()
if logger.IsEnabledFor(logging.DEBUG) {
dump, err2 := httputil.DumpResponse(resp, true)
if err2 != nil {
log.Fatal(err2)
}
logger.Debugf("%s", dump)
}
//handle as JSON document
jsonResponseRaw, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
var jsonResponse = &QueryResponse{}
err2 := json.Unmarshal(jsonResponseRaw, &jsonResponse)
if err2 != nil {
return nil, err2
}
for _, row := range jsonResponse.Docs {
var jsonDoc = &DocID{}
err3 := json.Unmarshal(row, &jsonDoc)
if err3 != nil {
return nil, err3
}
logger.Debugf("===COUCHDB=== Adding row to resultset: %s", row)
//TODO Replace the temporary NewHeight version when available
var addDocument = &QueryResult{jsonDoc.ID, version.NewHeight(1, 1), row}
results = append(results, *addDocument)
}
logger.Debugf("===COUCHDB=== Exiting QueryDocuments()")
return &results, nil
}
//ReadDocRange method provides function to a range of documents based on the start and end keys
//startKey and endKey can also be empty strings. If startKey and endKey are empty, all documents are returned
//TODO This function provides a limit option to specify the max number of entries. This will
//need to be added to configuration options. Skip will not be used by Fabric since a consistent
//result set is required
func (dbclient *CouchDBConnectionDef) ReadDocRange(startKey, endKey string, limit, skip int) (*[]QueryResult, error) {
logger.Debugf("===COUCHDB=== Entering ReadDocRange() startKey=%s, endKey=%s", startKey, endKey)
var results []QueryResult
rangeURL, err := url.Parse(dbclient.URL)
if err != nil {
logger.Errorf("===COUCHDB=== URL parse error: %s", err.Error())
return nil, err
}
rangeURL.Path = dbclient.Database + "/_all_docs"
queryParms := rangeURL.Query()
queryParms.Set("limit", strconv.Itoa(limit))
queryParms.Add("skip", strconv.Itoa(skip))
queryParms.Add("include_docs", "true")
//Append the startKey if provided
if startKey != "" {
queryParms.Add("startkey", strings.Replace(strconv.QuoteToGraphic(startKey), "\\x00", "\\u0000", 1))
}
//Append the endKey if provided
if endKey != "" {
queryParms.Add("endkey", strings.Replace(strconv.QuoteToGraphic(endKey), "\\x00", "\\u0000", 1))
}
rangeURL.RawQuery = queryParms.Encode()
resp, _, err := dbclient.handleRequest(http.MethodGet, rangeURL.String(), nil, "", "")
if err != nil {
return nil, err
}
defer resp.Body.Close()
if logger.IsEnabledFor(logging.DEBUG) {
dump, err2 := httputil.DumpResponse(resp, true)
if err2 != nil {
log.Fatal(err2)
}
logger.Debugf("%s", dump)
}
//handle as JSON document
jsonResponseRaw, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
var jsonResponse = &RangeQueryResponse{}
err2 := json.Unmarshal(jsonResponseRaw, &jsonResponse)
if err2 != nil {
return nil, err2
}
logger.Debugf("Total Rows: %d", jsonResponse.TotalRows)
for _, row := range jsonResponse.Rows {
var jsonDoc = &Doc{}
err3 := json.Unmarshal(row.Doc, &jsonDoc)
if err3 != nil {
return nil, err3
}
if jsonDoc.Attachments != nil {
logger.Debugf("===COUCHDB=== Adding binary docment for id: %s", jsonDoc.ID)
binaryDocument, _, err := dbclient.ReadDoc(jsonDoc.ID)
if err != nil {
return nil, err
}
var addDocument = &QueryResult{jsonDoc.ID, version.NewHeight(1, 1), binaryDocument}
results = append(results, *addDocument)
} else {
logger.Debugf("===COUCHDB=== Adding json docment for id: %s", jsonDoc.ID)
var addDocument = &QueryResult{jsonDoc.ID, version.NewHeight(1, 1), row.Doc}
results = append(results, *addDocument)
}
}
logger.Debugf("===COUCHDB=== Exiting ReadDocRange()")
return &results, nil
}
// ValidateAndPrepare implements method in interface `txmgmt.TxMgr`
func (txmgr *CouchDBTxMgr) ValidateAndPrepare(block *common.Block, doMVCCValidation bool) error {
if doMVCCValidation == true {
logger.Debugf("===COUCHDB=== Entering CouchDBTxMgr.ValidateAndPrepare()")
logger.Debugf("Validating a block with [%d] transactions", len(block.Data.Data))
} else {
logger.Debugf("New block arrived for write set computation:%#v", block)
logger.Debugf("Computing write set for a block with [%d] transactions", len(block.Data.Data))
}
var valid bool
txmgr.updateSet = newUpdateSet()
txmgr.blockNum = block.Header.Number
txsFilter := util.NewFilterBitArrayFromBytes(block.Metadata.Metadata[common.BlockMetadataIndex_TRANSACTIONS_FILTER])
for txIndex, envBytes := range block.Data.Data {
if txsFilter.IsSet(uint(txIndex)) {
// Skiping invalid transaction
logger.Debug("Skipping transaction marked as invalid, txIndex=", txIndex)
continue
}
// extract actions from the envelope message
respPayload, err := putils.GetActionFromEnvelope(envBytes)
if err != nil {
return err
}
//preparation for extracting RWSet from transaction
txRWSet := &rwset.TxReadWriteSet{}
// Get the Result from the Action
// and then Unmarshal it into a TxReadWriteSet using custom unmarshalling
if err = txRWSet.Unmarshal(respPayload.Results); err != nil {
return err
}
// trace the first 2000 characters of RWSet only, in case it is huge
if logger.IsEnabledFor(logging.DEBUG) {
txRWSetString := txRWSet.String()
operation := "validating"
if doMVCCValidation == false {
operation = "computing write set from"
}
if len(txRWSetString) < 2000 {
logger.Debugf(operation+" txRWSet:[%s]", txRWSetString)
} else {
logger.Debugf(operation+" txRWSet:[%s...]", txRWSetString[0:2000])
}
}
if doMVCCValidation == true {
if valid, err = txmgr.validateTx(txRWSet); err != nil {
return err
}
} else {
valid = true
}
if valid {
if err := txmgr.addWriteSetToBatch(txRWSet, version.NewHeight(block.Header.Number, uint64(txIndex+1))); err != nil {
return err
}
} else {
// Unset bit in byte array corresponded to the invalid transaction
txsFilter.Set(uint(txIndex))
}
}
block.Metadata.Metadata[common.BlockMetadataIndex_TRANSACTIONS_FILTER] = txsFilter.ToBytes()
logger.Debugf("===COUCHDB=== Exiting CouchDBTxMgr.ValidateAndPrepare()")
return nil
}
func TestDatabaseQuery(t *testing.T) {
//call a helper method to load the core.yaml
testutil.SetupCoreYAMLConfig("./../../../../../peer")
//Only run the tests if CouchDB is explitily enabled in the code,
//otherwise CouchDB may not be installed and all the tests would fail
//TODO replace this with external config property rather than config within the code
if ledgerconfig.IsCouchDBEnabled() == true {
env := newTestEnv(t)
//env.Cleanup() //cleanup at the beginning to ensure the database doesn't exist already
//defer env.Cleanup() //and cleanup at the end
txMgr := NewCouchDBTxMgr(env.conf,
env.couchDBAddress, //couchDB Address
env.couchDatabaseName, //couchDB db name
env.couchUsername, //enter couchDB id
env.couchPassword) //enter couchDB pw
type Asset struct {
ID string `json:"_id"`
Rev string `json:"_rev"`
AssetName string `json:"asset_name"`
Color string `json:"color"`
Size string `json:"size"`
Owner string `json:"owner"`
}
s1, _ := txMgr.NewTxSimulator()
s1.SetState("ns1", "key1", []byte("value1"))
s1.SetState("ns1", "key2", []byte("value2"))
s1.SetState("ns1", "key3", []byte("value3"))
s1.SetState("ns1", "key4", []byte("value4"))
s1.SetState("ns1", "key5", []byte("value5"))
s1.SetState("ns1", "key6", []byte("value6"))
s1.SetState("ns1", "key7", []byte("value7"))
s1.SetState("ns1", "key8", []byte("value8"))
s1.SetState("ns1", "key9", []byte(`{"asset_name":"marble1","color":"red","size":"25","owner":"jerry"}`))
s1.SetState("ns1", "key10", []byte(`{"asset_name":"marble2","color":"blue","size":"10","owner":"bob"}`))
s1.SetState("ns1", "key11", []byte(`{"asset_name":"marble3","color":"blue","size":"35","owner":"jerry"}`))
s1.SetState("ns1", "key12", []byte(`{"asset_name":"marble4","color":"green","size":"15","owner":"bob"}`))
s1.SetState("ns1", "key13", []byte(`{"asset_name":"marble5","color":"red","size":"35","owner":"jerry"}`))
s1.SetState("ns1", "key14", []byte(`{"asset_name":"marble6","color":"blue","size":"25","owner":"bob"}`))
s1.Done()
// validate and commit RWset
txRWSet := s1.(*CouchDBTxSimulator).getTxReadWriteSet()
isValid, err := txMgr.validateTx(txRWSet)
testutil.AssertNoError(t, err, fmt.Sprintf("Error in validateTx(): %s", err))
testutil.AssertSame(t, isValid, true)
txMgr.addWriteSetToBatch(txRWSet, version.NewHeight(1, 1))
err = txMgr.Commit()
testutil.AssertNoError(t, err, fmt.Sprintf("Error while calling commit(): %s", err))
queryExecuter, _ := txMgr.NewQueryExecutor()
queryString := "{\"selector\":{\"owner\": {\"$eq\": \"bob\"}},\"limit\": 10,\"skip\": 0}"
itr, _ := queryExecuter.ExecuteQuery(queryString)
counter := 0
for {
queryRecord, _ := itr.Next()
if queryRecord == nil {
break
}
//Unmarshal the document to Asset structure
assetResp := &Asset{}
json.Unmarshal(queryRecord.(*ledger.QueryRecord).Record, &assetResp)
//Verify the owner retrieved matches
testutil.AssertEquals(t, assetResp.Owner, "bob")
counter++
}
//Ensure the query returns 3 documents
testutil.AssertEquals(t, counter, 3)
txMgr.Shutdown()
}
}
func TestEncodeDecodeValueAndVersion(t *testing.T) {
testValueAndVersionEncodeing(t, []byte("value1"), version.NewHeight(1, 2))
testValueAndVersionEncodeing(t, []byte{}, version.NewHeight(50, 50))
}