cli: add tests for multisig sign

This test is also a good example of how to
create and sign multisig transaction from scratch.

cli/executor_test.go

@@ -6,6 +6,7 @@ import (
 	"errors"
 	"io"
 	"io/ioutil"
+	"strings"
 	"testing"
 	"time"
 
@@ -19,6 +20,7 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/network"
 	"github.com/nspcc-dev/neo-go/pkg/rpc/server"
 	"github.com/nspcc-dev/neo-go/pkg/util"
+	"github.com/nspcc-dev/neo-go/pkg/vm"
 	"github.com/stretchr/testify/require"
 	"github.com/urfave/cli"
 	"go.uber.org/zap"
@@ -177,3 +179,29 @@ func (e *executor) run(args ...string) error {
 	e.Err.Reset()
 	return e.CLI.Run(args)
 }
+
+func (e *executor) checkTxPersisted(t *testing.T) {
+	line, err := e.Out.ReadString('\n')
+	require.NoError(t, err)
+
+	line = strings.TrimSpace(line)
+	h, err := util.Uint256DecodeStringLE(line)
+	require.NoError(t, err, "can't decode tx hash: %s", line)
+
+	tx := e.GetTransaction(t, h)
+	aer, err := e.Chain.GetAppExecResult(tx.Hash())
+	require.NoError(t, err)
+	require.Equal(t, vm.HaltState, aer.VMState)
+}
+
+func generateKeys(t *testing.T, n int) ([]*keys.PrivateKey, keys.PublicKeys) {
+	privs := make([]*keys.PrivateKey, n)
+	pubs := make(keys.PublicKeys, n)
+	for i := range privs {
+		var err error
+		privs[i], err = keys.NewPrivateKey()
+		require.NoError(t, err)
+		pubs[i] = privs[i].PublicKey()
+	}
+	return privs, pubs
+}

cli/multisig_test.go

@@ -0,0 +1,85 @@
+package main
+
+import (
+	"encoding/hex"
+	"math/big"
+	"os"
+	"path"
+	"testing"
+
+	"github.com/nspcc-dev/neo-go/pkg/crypto/hash"
+	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
+	"github.com/nspcc-dev/neo-go/pkg/encoding/address"
+	"github.com/nspcc-dev/neo-go/pkg/smartcontract"
+	"github.com/stretchr/testify/require"
+)
+
+// Test signing of multisig transactions.
+// 1. Transfer funds to a created multisig address.
+// 2. Transfer from multisig to another account.
+func TestSignMultisigTx(t *testing.T) {
+	e := newExecutor(t, true)
+	defer e.Close(t)
+
+	privs, pubs := generateKeys(t, 3)
+	script, err := smartcontract.CreateMultiSigRedeemScript(2, pubs)
+	require.NoError(t, err)
+	multisigHash := hash.Hash160(script)
+	multisigAddr := address.Uint160ToString(multisigHash)
+
+	// Create 2 wallets participating in multisig.
+	tmpDir := os.TempDir()
+	wallet1Path := path.Join(tmpDir, "multiWallet1.json")
+	defer os.Remove(wallet1Path)
+	wallet2Path := path.Join(tmpDir, "multiWallet2.json")
+	defer os.Remove(wallet2Path)
+
+	addAccount := func(w string, wif string) {
+		e.In.WriteString("acc\rpass\rpass\r")
+		e.Run(t, "neo-go", "wallet", "init", "--wallet", w)
+		e.Run(t, "neo-go", "wallet", "import-multisig",
+			"--wallet", w,
+			"--wif", wif,
+			"--min", "2",
+			hex.EncodeToString(pubs[0].Bytes()),
+			hex.EncodeToString(pubs[1].Bytes()),
+			hex.EncodeToString(pubs[2].Bytes()))
+	}
+	addAccount(wallet1Path, privs[0].WIF())
+	addAccount(wallet2Path, privs[1].WIF())
+
+	// Transfer funds to the multisig.
+	e.In.WriteString("one\r")
+	e.Run(t, "neo-go", "wallet", "nep5", "multitransfer",
+		"--unittest", "--rpc-endpoint", "http://"+e.RPC.Addr,
+		"--wallet", validatorWallet,
+		"--from", validatorAddr,
+		"neo:"+multisigAddr+":4",
+		"gas:"+multisigAddr+":1")
+	e.checkTxPersisted(t)
+
+	// Sign and transfer funds to another account.
+	priv, err := keys.NewPrivateKey()
+	require.NoError(t, err)
+
+	txPath := path.Join(tmpDir, "multisigtx.json")
+	defer os.Remove(txPath)
+	e.In.WriteString("pass\r")
+	e.Run(t, "neo-go", "wallet", "nep5", "transfer",
+		"--unittest", "--rpc-endpoint", "http://"+e.RPC.Addr,
+		"--wallet", wallet1Path, "--from", multisigAddr,
+		"--to", priv.Address(), "--token", "neo", "--amount", "1",
+		"--out", txPath)
+
+	e.In.WriteString("pass\r")
+	e.Run(t, "neo-go", "wallet", "multisig", "sign",
+		"--unittest", "--rpc-endpoint", "http://"+e.RPC.Addr,
+		"--wallet", wallet2Path, "--addr", multisigAddr,
+		"--in", txPath, "--out", txPath)
+	e.checkTxPersisted(t)
+
+	b, _ := e.Chain.GetGoverningTokenBalance(priv.GetScriptHash())
+	require.Equal(t, big.NewInt(1), b)
+	b, _ = e.Chain.GetGoverningTokenBalance(multisigHash)
+	require.Equal(t, big.NewInt(3), b)
+}

cli/nep5_test.go

@@ -6,14 +6,11 @@ import (
 	"os"
 	"path"
 	"strconv"
-	"strings"
 	"testing"
 
-	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	"github.com/nspcc-dev/neo-go/pkg/encoding/address"
 	"github.com/nspcc-dev/neo-go/pkg/rpc/client"
 	"github.com/nspcc-dev/neo-go/pkg/util"
-	"github.com/nspcc-dev/neo-go/pkg/vm"
 	"github.com/nspcc-dev/neo-go/pkg/wallet"
 	"github.com/stretchr/testify/require"
 )
@@ -82,15 +79,7 @@ func TestNEP5Transfer(t *testing.T) {
 
 	e.In.WriteString("one\r")
 	e.Run(t, args...)
-	line, err := e.Out.ReadString('\n')
-	require.NoError(t, err)
-	h, err := util.Uint256DecodeStringLE(strings.TrimSpace(line))
-	require.NoError(t, err, "can't decode tx hash: %s", line)
-
-	tx := e.GetTransaction(t, h)
-	aer, err := e.Chain.GetAppExecResult(tx.Hash())
-	require.NoError(t, err)
-	require.Equal(t, vm.HaltState, aer.VMState)
+	e.checkTxPersisted(t)
 
 	sh, err := address.StringToUint160(w.Accounts[0].Address)
 	require.NoError(t, err)
@@ -99,12 +88,7 @@ func TestNEP5Transfer(t *testing.T) {
 }
 
 func TestNEP5MultiTransfer(t *testing.T) {
-	privs := make([]*keys.PrivateKey, 3)
-	for i := range privs {
-		var err error
-		privs[i], err = keys.NewPrivateKey()
-		require.NoError(t, err)
-	}
+	privs, _ := generateKeys(t, 3)
 
 	e := newExecutor(t, true)
 	defer e.Close(t)
@@ -120,15 +104,7 @@ func TestNEP5MultiTransfer(t *testing.T) {
 
 	e.In.WriteString("one\r")
 	e.Run(t, args...)
-	line, err := e.Out.ReadString('\n')
-	require.NoError(t, err)
-	h, err := util.Uint256DecodeStringLE(strings.TrimSpace(line))
-	require.NoError(t, err, "can't decode tx hash: %s", line)
-
-	tx := e.GetTransaction(t, h)
-	aer, err := e.Chain.GetAppExecResult(tx.Hash())
-	require.NoError(t, err)
-	require.Equal(t, vm.HaltState, aer.VMState)
+	e.checkTxPersisted(t)
 
 	b, _ := e.Chain.GetGoverningTokenBalance(privs[0].GetScriptHash())
 	require.Equal(t, big.NewInt(42), b)

cli/wallet/multisig.go

@@ -3,7 +3,6 @@ package wallet
 import (
 	"encoding/json"
 	"fmt"
-	"io"
 	"io/ioutil"
 
 	"github.com/nspcc-dev/neo-go/cli/options"
@@ -60,7 +59,7 @@ func signMultisig(ctx *cli.Context) error {
 	if !ok {
 		return cli.NewExitError("verifiable item is not a transaction", 1)
 	}
-	printTxInfo(ctx.App.Writer, tx)
+	fmt.Fprintln(ctx.App.Writer, tx.Hash().StringLE())
 
 	priv := acc.PrivateKey()
 	sign := priv.Sign(tx.GetSignedPart())
@@ -116,7 +115,3 @@ func writeParameterContext(c *context.ParameterContext, filename string) error {
 	}
 	return nil
 }
-
-func printTxInfo(w io.Writer, t *transaction.Transaction) {
-	fmt.Fprintf(w, "Hash: %s\n", t.Hash().StringLE())
-}

cli/wallet_test.go

@@ -98,14 +98,7 @@ func TestWalletInit(t *testing.T) {
 			require.NoError(t, actual.Decrypt("somepass"))
 		})
 		t.Run("Multisig", func(t *testing.T) {
-			privs := make([]*keys.PrivateKey, 4)
-			pubs := make(keys.PublicKeys, 4)
-			for i := range privs {
-				var err error
-				privs[i], err = keys.NewPrivateKey()
-				require.NoError(t, err)
-				pubs[i] = privs[i].PublicKey()
-			}
+			privs, pubs := generateKeys(t, 4)
 
 			cmd := []string{"neo-go", "wallet", "import-multisig",
 				"--wallet", walletPath,