0g-chain/app/benchmarks/txsize_test.go
2019-07-18 18:36:31 +01:00

42 lines
1.2 KiB
Go

package app
import (
"fmt"
"github.com/tendermint/tendermint/crypto/secp256k1"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/x/auth"
"github.com/cosmos/cosmos-sdk/x/bank"
"github.com/kava-labs/kava/app"
)
// This will fail half the time with the second output being 173
// This is due to secp256k1 signatures not being constant size.
// nolint: vet
func ExampleTxSendSize() {
cdc := app.MakeCodec()
var gas uint64 = 1
priv1 := secp256k1.GenPrivKeySecp256k1([]byte{0})
addr1 := sdk.AccAddress(priv1.PubKey().Address())
priv2 := secp256k1.GenPrivKeySecp256k1([]byte{1})
addr2 := sdk.AccAddress(priv2.PubKey().Address())
coins := sdk.Coins{sdk.NewCoin("denom", sdk.NewInt(10))}
msg1 := bank.MsgMultiSend{
Inputs: []bank.Input{bank.NewInput(addr1, coins)},
Outputs: []bank.Output{bank.NewOutput(addr2, coins)},
}
fee := auth.NewStdFee(gas, coins)
signBytes := auth.StdSignBytes("example-chain-ID",
1, 1, fee, []sdk.Msg{msg1}, "")
sig, _ := priv1.Sign(signBytes)
sigs := []auth.StdSignature{{nil, sig}}
tx := auth.NewStdTx([]sdk.Msg{msg1}, fee, sigs, "")
fmt.Println(len(cdc.MustMarshalBinaryBare([]sdk.Msg{msg1})))
fmt.Println(len(cdc.MustMarshalBinaryBare(tx)))
// output: 80
// 169
}