neoneo-go/pkg/smartcontract/context/context_test.go

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package context
import (
"encoding/hex"
"testing"
"github.com/nspcc-dev/neo-go/internal/testserdes"
"github.com/nspcc-dev/neo-go/pkg/config/netmode"
"github.com/nspcc-dev/neo-go/pkg/core/interop"
"github.com/nspcc-dev/neo-go/pkg/core/interop/crypto"
"github.com/nspcc-dev/neo-go/pkg/core/transaction"
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
"github.com/nspcc-dev/neo-go/pkg/smartcontract"
"github.com/nspcc-dev/neo-go/pkg/util"
"github.com/nspcc-dev/neo-go/pkg/vm"
"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
"github.com/nspcc-dev/neo-go/pkg/wallet"
"github.com/stretchr/testify/require"
)
func TestParameterContext_AddSignatureSimpleContract(t *testing.T) {
tx := getContractTx()
priv, err := keys.NewPrivateKey()
require.NoError(t, err)
pub := priv.PublicKey()
sig := priv.Sign(tx.GetSignedPart())
t.Run("invalid contract", func(t *testing.T) {
c := NewParameterContext("Neo.Core.ContractTransaction", tx)
ctr := &wallet.Contract{
Script: pub.GetVerificationScript(),
Parameters: []wallet.ContractParam{
newParam(smartcontract.SignatureType, "parameter0"),
newParam(smartcontract.SignatureType, "parameter1"),
},
}
require.Error(t, c.AddSignature(ctr, pub, sig))
if item := c.Items[ctr.ScriptHash()]; item != nil {
require.Nil(t, item.Parameters[0].Value)
}
ctr.Parameters = ctr.Parameters[:0]
require.Error(t, c.AddSignature(ctr, pub, sig))
if item := c.Items[ctr.ScriptHash()]; item != nil {
require.Nil(t, item.Parameters[0].Value)
}
})
c := NewParameterContext("Neo.Core.ContractTransaction", tx)
ctr := &wallet.Contract{
Script: pub.GetVerificationScript(),
Parameters: []wallet.ContractParam{newParam(smartcontract.SignatureType, "parameter0")},
}
require.NoError(t, c.AddSignature(ctr, pub, sig))
item := c.Items[ctr.ScriptHash()]
require.NotNil(t, item)
require.Equal(t, sig, item.Parameters[0].Value)
t.Run("GetWitness", func(t *testing.T) {
w, err := c.GetWitness(ctr)
require.NoError(t, err)
v := newTestVM(w, tx)
require.NoError(t, v.Run())
require.Equal(t, 1, v.Estack().Len())
require.Equal(t, true, v.Estack().Pop().Value())
})
}
func TestParameterContext_AddSignatureMultisig(t *testing.T) {
tx := getContractTx()
c := NewParameterContext("Neo.Core.ContractTransaction", tx)
privs, pubs := getPrivateKeys(t, 4)
pubsCopy := keys.PublicKeys(pubs).Copy()
script, err := smartcontract.CreateMultiSigRedeemScript(3, pubsCopy)
require.NoError(t, err)
ctr := &wallet.Contract{
Script: script,
Parameters: []wallet.ContractParam{
newParam(smartcontract.SignatureType, "parameter0"),
newParam(smartcontract.SignatureType, "parameter1"),
newParam(smartcontract.SignatureType, "parameter2"),
},
}
data := tx.GetSignedPart()
priv, err := keys.NewPrivateKey()
require.NoError(t, err)
sig := priv.Sign(data)
require.Error(t, c.AddSignature(ctr, priv.PublicKey(), sig))
indices := []int{2, 3, 0} // random order
for _, i := range indices {
sig := privs[i].Sign(data)
require.NoError(t, c.AddSignature(ctr, pubs[i], sig))
require.Error(t, c.AddSignature(ctr, pubs[i], sig))
item := c.Items[ctr.ScriptHash()]
require.NotNil(t, item)
require.Equal(t, sig, item.GetSignature(pubs[i]))
}
t.Run("GetWitness", func(t *testing.T) {
w, err := c.GetWitness(ctr)
require.NoError(t, err)
v := newTestVM(w, tx)
require.NoError(t, v.Run())
require.Equal(t, 1, v.Estack().Len())
require.Equal(t, true, v.Estack().Pop().Value())
})
}
func newTestVM(w *transaction.Witness, tx *transaction.Transaction) *vm.VM {
ic := &interop.Context{Container: tx}
crypto.Register(ic)
v := ic.SpawnVM()
v.LoadScript(w.VerificationScript)
v.LoadScript(w.InvocationScript)
return v
}
func TestParameterContext_MarshalJSON(t *testing.T) {
priv, err := keys.NewPrivateKey()
require.NoError(t, err)
tx := getContractTx()
data := tx.GetSignedPart()
sign := priv.Sign(data)
expected := &ParameterContext{
Type: "Neo.Core.ContractTransaction",
Verifiable: tx,
Items: map[util.Uint160]*Item{
priv.GetScriptHash(): {
Script: priv.GetScriptHash(),
Parameters: []smartcontract.Parameter{{
Type: smartcontract.SignatureType,
Value: sign,
}},
Signatures: map[string][]byte{
hex.EncodeToString(priv.PublicKey().Bytes()): sign,
},
},
},
}
testserdes.MarshalUnmarshalJSON(t, expected, new(ParameterContext))
}
func getPrivateKeys(t *testing.T, n int) ([]*keys.PrivateKey, []*keys.PublicKey) {
privs := make([]*keys.PrivateKey, n)
pubs := make([]*keys.PublicKey, 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
}
func newParam(typ smartcontract.ParamType, name string) wallet.ContractParam {
return wallet.ContractParam{
Name: name,
Type: typ,
}
}
func getContractTx() *transaction.Transaction {
tx := transaction.New(netmode.UnitTestNet, []byte{byte(opcode.PUSH1)}, 0)
tx.Attributes = make([]transaction.Attribute, 0)
tx.Scripts = make([]transaction.Witness, 0)
tx.Signers = []transaction.Signer{{Account: util.Uint160{1, 2, 3}}}
tx.Hash()
return tx
}