-
Notifications
You must be signed in to change notification settings - Fork 580
/
test_helpers.go
80 lines (69 loc) · 1.98 KB
/
test_helpers.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
package helpers
import (
"math/rand"
"time"
"github.com/cosmos/cosmos-sdk/client"
cryptotypes "github.com/cosmos/cosmos-sdk/crypto/types"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/types/simulation"
"github.com/cosmos/cosmos-sdk/types/tx/signing"
authsign "github.com/cosmos/cosmos-sdk/x/auth/signing"
)
// SimAppChainID hardcoded chainID for simulation
const (
DefaultGenTxGas = 1000000
SimAppChainID = "simulation-app"
)
// GenTx generates a signed mock transaction.
func GenTx(gen client.TxConfig, msgs []sdk.Msg, feeAmt sdk.Coins, gas uint64, chainID string, accNums, accSeqs []uint64, priv ...cryptotypes.PrivKey) (sdk.Tx, error) {
sigs := make([]signing.SignatureV2, len(priv))
// create a random length memo
r := rand.New(rand.NewSource(time.Now().UnixNano()))
memo := simulation.RandStringOfLength(r, simulation.RandIntBetween(r, 0, 100))
signMode := gen.SignModeHandler().DefaultMode()
// 1st round: set SignatureV2 with empty signatures, to set correct
// signer infos.
for i, p := range priv {
sigs[i] = signing.SignatureV2{
PubKey: p.PubKey(),
Data: &signing.SingleSignatureData{
SignMode: signMode,
},
Sequence: accSeqs[i],
}
}
tx := gen.NewTxBuilder()
err := tx.SetMsgs(msgs...)
if err != nil {
return nil, err
}
err = tx.SetSignatures(sigs...)
if err != nil {
return nil, err
}
tx.SetMemo(memo)
tx.SetFeeAmount(feeAmt)
tx.SetGasLimit(gas)
// 2nd round: once all signer infos are set, every signer can sign.
for i, p := range priv {
signerData := authsign.SignerData{
ChainID: chainID,
AccountNumber: accNums[i],
Sequence: accSeqs[i],
}
signBytes, err := gen.SignModeHandler().GetSignBytes(signMode, signerData, tx.GetTx())
if err != nil {
panic(err)
}
sig, err := p.Sign(signBytes)
if err != nil {
panic(err)
}
sigs[i].Data.(*signing.SingleSignatureData).Signature = sig
err = tx.SetSignatures(sigs...)
if err != nil {
panic(err)
}
}
return tx.GetTx(), nil
}