remove type clone test

plugin/dapp/paracross/executor/superaccount_test.go

@@ -5,11 +5,6 @@
 package executor
 
 import (
-	"bytes"
-	"encoding/gob"
-	"encoding/hex"
-
-	"github.com/golang/protobuf/proto"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/suite"
 
@@ -376,153 +371,3 @@ func TestGetNodeIdSuffix(t *testing.T) {
 	assert.Equal(t, txID, rtID)
 
 }
-
-func deepCopy(dst, src interface{}) error {
-	var buf bytes.Buffer
-	if err := gob.NewEncoder(&buf).Encode(src); err != nil {
-		return err
-	}
-	return gob.NewDecoder(bytes.NewBuffer(buf.Bytes())).Decode(dst)
-}
-
-func BenchmarkDeepCody(b *testing.B) {
-	hexBlock := "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"
-	bs, err := hex.DecodeString(hexBlock)
-	if err != nil {
-		return
-	}
-	var block types.BlockDetail
-	err = types.Decode(bs, &block)
-	if err != nil {
-		return
-	}
-
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		var b types.BlockDetail
-		err = deepCopy(b, block)
-	}
-
-}
-
-func BenchmarkProtoClone(b *testing.B) {
-	hexBlock := "0aad071220d29ccba4a90178614c8036f962201fdf56e77b419ca570371778e129a0e0e2841a20dd690056e7719d5b5fd1ad3e76f3b4366db9f3278ca29fbe4fc523bbf756fa8a222064cdbc89fe14ae7b851a71e41bd36a82db8cd3b69f4434f6420b279fea4fd25028e90330d386c4ea053a99040a067469636b657412ed02501022e80208ffff8bf8011080cab5ee011a70313271796f6361794e46374c7636433971573461767873324537553431664b5366763a3078386434663130653666313762616533636538663764303239616263623461393839616563333333386238386662333537656165663035613265326465373930343a30303030303035363533224230783537656632356366363036613734393462626164326432666233373734316137636332346663663066653064303637363638636564306235653961363735336632206b9836b2d295ca16634ea83359342db3ab1ab5f15200993bf6a09024089b7b693a810136f5a704a427a0562653345659193a0e292f16200ce67d6a8f8af631149a904fb80f0c12f525f7ce208fbf2183f2052af6252a108bb2614db0ccf8d91d4e910a04c472f5113275fe937f68ed6b2b0b522cc5fc2594b9fec60c0b22524b828333aaa982be125ec0f69645c86de3d331b26aa84c29a06824e977ce51f76f34f0629c1a6d080112210320bbac09528e19c55b0f89cb37ab265e7e856b1a8c388780322dbbfd194b52ba1a46304402200971163de32cb6a17e925eb3fcec8a0ccc193493635ecbf52357f5365edc2c82022039d84aa7078bc51ef83536038b7fd83087bf4deb965370f211a5589d4add551720a08d063097c5abcc9db1e4a92b3a22313668747663424e53454137665a6841644c4a706844775152514a614870794854703af4010a05746f6b656e124438070a400a0879696e6865626962120541424344452080d0dbc3f4022864322231513868474c666f47653633656665576138664a34506e756b686b6e677436706f4b38011a6d08011221021afd97c3d9a47f7ead3ca34fe5a73789714318df2c608cf2c7962378dc858ecb1a4630440220316a241f19b392e685ef940dee48dc53f90fc5c8be108ceeef1d3c65f530ee5f02204c89708cc7dac408a88e9fa6ad8e723d93fc18fe114d4a416e280f5a15656b0920a08d0628ca87c4ea0530dd91be81ae9ed1882d3a22313268704a4248796268316d537943696a51324d514a506b377a376b5a376a6e516158ffff8bf80162200b97166ad507aea57a4bb6e6b9295ec082cdc670b8468a83b559dbd900ffb83068e90312e80508021a5e0802125a0a2b1080978dcaef192222313271796f6361794e46374c7636433971573461767873324537553431664b536676122b10e08987caef192222313271796f6361794e46374c7636433971573461767873324537553431664b5366761a9f010871129a010a70313271796f6361794e46374c7636433971573461767873324537553431664b5366763a3078386434663130653666313762616533636538663764303239616263623461393839616563333333386238386662333537656165663035613265326465373930343a30303030303035363533100218012222313271796f6361794e46374c7636433971573461767873324537553431664b5366761a620805125e0a2d1080e0cd90f6a6ca342222313668747663424e53454137665a6841644c4a706844775152514a61487079485470122d1080aa83fff7a6ca342222313668747663424e53454137665a6841644c4a706844775152514a614870794854701a870108081282010a22313668747663424e53454137665a6841644c4a706844775152514a61487079485470122d1880f0cae386e68611222231344b454b6259744b4b516d34774d7468534b394a344c61346e41696964476f7a741a2d1880ba80d288e68611222231344b454b6259744b4b516d34774d7468534b394a344c61346e41696964476f7a741a620805125e0a2d1080aa83fff7a6ca342222313668747663424e53454137665a6841644c4a706844775152514a61487079485470122d1080f0898ef9a6ca342222313668747663424e53454137665a6841644c4a706844775152514a614870794854701a8f010808128a010a22313668747663424e53454137665a6841644c4a706844775152514a6148707948547012311080e0ba84bf03188090c0ac622222314251585336547861595947356d41446157696a344178685a5a55547077393561351a311080e0ba84bf031880d6c6bb632222314251585336547861595947356d41446157696a344178685a5a555470773935613512970208021a5c080212580a2a10c099b8c321222231513868474c666f47653633656665576138664a34506e756b686b6e677436706f4b122a10a08cb2c321222231513868474c666f47653633656665576138664a34506e756b686b6e677436706f4b1a82010809127e0a22313268704a4248796268316d537943696a51324d514a506b377a376b5a376a6e5161122a108094ebdc03222231513868474c666f47653633656665576138664a34506e756b686b6e677436706f4b1a2c109c93ebdc031864222231513868474c666f47653633656665576138664a34506e756b686b6e677436706f4b1a3008d301122b0a054142434445122231513868474c666f47653633656665576138664a34506e756b686b6e677436706f4b"
-	bs, err := hex.DecodeString(hexBlock)
-	if err != nil {
-		return
-	}
-	var block types.BlockDetail
-	err = types.Decode(bs, &block)
-	if err != nil {
-		return
-	}
-
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		_ = proto.Clone(&block).(*types.BlockDetail)
-	}
-}
-
-func BenchmarkProtoMarshal(b *testing.B) {
-	hexBlock := "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"
-	bs, err := hex.DecodeString(hexBlock)
-	if err != nil {
-		return
-	}
-	var block types.BlockDetail
-	err = types.Decode(bs, &block)
-	if err != nil {
-		return
-	}
-
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		x, _ := proto.Marshal(&block)
-		var b types.BlockDetail
-		proto.Unmarshal(x, &b)
-	}
-}
-
-func BenchmarkCopyBlockDetail(b *testing.B) {
-	hexBlock := "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"
-	bs, err := hex.DecodeString(hexBlock)
-	if err != nil {
-		return
-	}
-	var block types.BlockDetail
-	err = types.Decode(bs, &block)
-	if err != nil {
-		return
-	}
-
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		_ = CopyBlockDetail(&block)
-	}
-}
-
-func CopyBlockDetail(b *types.BlockDetail) *types.BlockDetail {
-	return &types.BlockDetail{
-		Block:          copyBlock(b.Block),
-		Receipts:       copyReceiptData(b.Receipts),
-		KV:             copyKV(b.KV),
-		PrevStatusHash: b.PrevStatusHash,
-	}
-}
-
-func copyReceiptData(b []*types.ReceiptData) []*types.ReceiptData {
-	rs := make([]*types.ReceiptData, 0, len(b))
-	for i := 0; i < len(b); i++ {
-		rs = append(rs, &types.ReceiptData{Ty: b[i].Ty, Logs: copyReceiptLog(b[i].Logs)})
-	}
-	return rs
-}
-
-func copyReceiptLog(b []*types.ReceiptLog) []*types.ReceiptLog {
-	rs := make([]*types.ReceiptLog, 0, len(b))
-	for i := 0; i < len(b); i++ {
-		rs = append(rs, &types.ReceiptLog{Ty: b[i].Ty, Log: b[i].Log})
-	}
-	return rs
-}
-
-func copyBlock(b *types.Block) *types.Block {
-	return &types.Block{
-		Version:    b.Version,    // int64          `protobuf:"varint,1,opt,name=version,proto3" json:"version,omitempty"`
-		ParentHash: b.ParentHash, //   []byte         `protobuf:"bytes,2,opt,name=parentHash,proto3" json:"parentHash,omitempty"`
-		TxHash:     b.TxHash,     //     []byte         `protobuf:"bytes,3,opt,name=txHash,proto3" json:"txHash,omitempty"`
-		StateHash:  b.StateHash,  //    []byte         `protobuf:"bytes,4,opt,name=stateHash,proto3" json:"stateHash,omitempty"`
-		Height:     b.Height,     //   int64          `protobuf:"varint,5,opt,name=height,proto3" json:"height,omitempty"`
-		BlockTime:  b.Height,     //  int64          `protobuf:"varint,6,opt,name=blockTime,proto3" json:"blockTime,omitempty"`
-		Difficulty: b.Difficulty, // ,   uint32         `protobuf:"varint,11,opt,name=difficulty,proto3" json:"difficulty,omitempty"`
-		MainHash:   b.MainHash,   //    []byte         `protobuf:"bytes,12,opt,name=mainHash,proto3" json:"mainHash,omitempty"`
-		MainHeight: b.MainHeight, //    int64          `protobuf:"varint,13,opt,name=mainHeight,proto3" json:"mainHeight,omitempty"`
-		Signature:  copySignature(b.Signature),
-		Txs:        copyTx(b.Txs), //    []*Transaction `protobuf:"bytes,7,rep,name=txs,proto3" json:"txs,omitempty"`
-	}
-}
-
-func copySignature(b *types.Signature) *types.Signature {
-	if b == nil {
-		return nil
-	}
-	sig := *b
-	return &sig
-}
-
-func copyTx(b []*types.Transaction) []*types.Transaction {
-	txs := make([]*types.Transaction, 0, len(b))
-	for i := 0; i < len(b); i++ {
-		tx := *b[i]
-		txs = append(txs, &tx)
-	}
-	return txs
-}
-
-func copyKV(b []*types.KeyValue) []*types.KeyValue {
-	kv := make([]*types.KeyValue, 0, len(b))
-	for i := 0; i < len(b); i++ {
-		kv = append(kv, &types.KeyValue{Key: b[i].Key, Value: b[i].Value})
-	}
-	return kv
-}