neo-go/pkg/core/interop_neo_test.go
2020-06-08 13:27:08 +03:00

401 lines
12 KiB
Go

package core
import (
"fmt"
"math/big"
"testing"
"github.com/nspcc-dev/neo-go/pkg/core/block"
"github.com/nspcc-dev/neo-go/pkg/core/dao"
"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/interop/enumerator"
"github.com/nspcc-dev/neo-go/pkg/core/interop/iterator"
"github.com/nspcc-dev/neo-go/pkg/core/state"
"github.com/nspcc-dev/neo-go/pkg/core/storage"
"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/internal/random"
"github.com/nspcc-dev/neo-go/pkg/smartcontract"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/trigger"
"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/vm/stackitem"
"github.com/stretchr/testify/require"
)
/* Missing tests:
* TestTxGetWitnesses
* TestBcGetAccount
* TestAccountGetBalance
* TestAccountIsStandard
* TestCreateContractStateFromVM
* TestContractCreate
* TestContractMigrate
* TestRuntimeSerialize
* TestRuntimeDeserialize
*/
func TestGetTrigger(t *testing.T) {
v, _, context, chain := createVMAndPushBlock(t)
defer chain.Close()
require.NoError(t, runtimeGetTrigger(context, v))
}
func TestStorageFind(t *testing.T) {
v, contractState, context, chain := createVMAndContractState(t)
defer chain.Close()
skeys := [][]byte{{0x01, 0x02}, {0x02, 0x01}, {0x01, 0x01}}
items := []*state.StorageItem{
{
Value: []byte{0x01, 0x02, 0x03, 0x04},
},
{
Value: []byte{0x04, 0x03, 0x02, 0x01},
},
{
Value: []byte{0x03, 0x04, 0x05, 0x06},
},
}
require.NoError(t, context.DAO.PutContractState(contractState))
scriptHash := contractState.ScriptHash()
for i := range skeys {
err := context.DAO.PutStorageItem(scriptHash, skeys[i], items[i])
require.NoError(t, err)
}
t.Run("normal invocation", func(t *testing.T) {
v.Estack().PushVal([]byte{0x01})
v.Estack().PushVal(stackitem.NewInterop(&StorageContext{ScriptHash: scriptHash}))
err := storageFind(context, v)
require.NoError(t, err)
var iter *stackitem.Interop
require.NotPanics(t, func() { iter = v.Estack().Top().Interop() })
require.NoError(t, enumerator.Next(context, v))
require.True(t, v.Estack().Pop().Bool())
v.Estack().PushVal(iter)
require.NoError(t, iterator.Key(context, v))
require.Equal(t, []byte{0x01, 0x01}, v.Estack().Pop().Bytes())
v.Estack().PushVal(iter)
require.NoError(t, enumerator.Value(context, v))
require.Equal(t, []byte{0x03, 0x04, 0x05, 0x06}, v.Estack().Pop().Bytes())
v.Estack().PushVal(iter)
require.NoError(t, enumerator.Next(context, v))
require.True(t, v.Estack().Pop().Bool())
v.Estack().PushVal(iter)
require.NoError(t, iterator.Key(context, v))
require.Equal(t, []byte{0x01, 0x02}, v.Estack().Pop().Bytes())
v.Estack().PushVal(iter)
require.NoError(t, enumerator.Value(context, v))
require.Equal(t, []byte{0x01, 0x02, 0x03, 0x04}, v.Estack().Pop().Bytes())
v.Estack().PushVal(iter)
require.NoError(t, enumerator.Next(context, v))
require.False(t, v.Estack().Pop().Bool())
})
t.Run("normal invocation, empty result", func(t *testing.T) {
v.Estack().PushVal([]byte{0x03})
v.Estack().PushVal(stackitem.NewInterop(&StorageContext{ScriptHash: scriptHash}))
err := storageFind(context, v)
require.NoError(t, err)
require.NoError(t, enumerator.Next(context, v))
require.False(t, v.Estack().Pop().Bool())
})
t.Run("invalid type for StorageContext", func(t *testing.T) {
v.Estack().PushVal([]byte{0x01})
v.Estack().PushVal(stackitem.NewInterop(nil))
require.Error(t, storageFind(context, v))
})
t.Run("invalid script hash", func(t *testing.T) {
invalidHash := scriptHash
invalidHash[0] = ^invalidHash[0]
v.Estack().PushVal([]byte{0x01})
v.Estack().PushVal(stackitem.NewInterop(&StorageContext{ScriptHash: invalidHash}))
require.Error(t, storageFind(context, v))
})
}
func TestHeaderGetVersion(t *testing.T) {
v, block, context, chain := createVMAndPushBlock(t)
defer chain.Close()
err := headerGetVersion(context, v)
require.NoError(t, err)
value := v.Estack().Pop().Value().(*big.Int)
require.Equal(t, uint64(block.Version), value.Uint64())
}
func TestHeaderGetVersion_Negative(t *testing.T) {
v := vm.New()
block := newDumbBlock()
chain := newTestChain(t)
defer chain.Close()
context := chain.newInteropContext(trigger.Application, dao.NewSimple(storage.NewMemoryStore()), block, nil)
v.Estack().PushVal(stackitem.NewBool(false))
err := headerGetVersion(context, v)
require.Errorf(t, err, "value is not a header or block")
}
func TestHeaderGetMerkleRoot(t *testing.T) {
v, block, context, chain := createVMAndPushBlock(t)
defer chain.Close()
err := headerGetMerkleRoot(context, v)
require.NoError(t, err)
value := v.Estack().Pop().Value()
require.Equal(t, block.MerkleRoot.BytesBE(), value)
}
func TestHeaderGetNextConsensus(t *testing.T) {
v, block, context, chain := createVMAndPushBlock(t)
defer chain.Close()
err := headerGetNextConsensus(context, v)
require.NoError(t, err)
value := v.Estack().Pop().Value()
require.Equal(t, block.NextConsensus.BytesBE(), value)
}
func TestTxGetAttributes(t *testing.T) {
v, tx, context, chain := createVMAndPushTX(t)
defer chain.Close()
err := txGetAttributes(context, v)
require.NoError(t, err)
value := v.Estack().Pop().Value().([]stackitem.Item)
require.Equal(t, tx.Attributes[0].Usage, value[0].Value().(*transaction.Attribute).Usage)
}
func TestWitnessGetVerificationScript(t *testing.T) {
v := vm.New()
script := []byte{byte(opcode.PUSHM1), byte(opcode.RET)}
witness := transaction.Witness{InvocationScript: nil, VerificationScript: script}
chain := newTestChain(t)
defer chain.Close()
context := chain.newInteropContext(trigger.Application, dao.NewSimple(storage.NewMemoryStore()), nil, nil)
v.Estack().PushVal(stackitem.NewInterop(&witness))
err := witnessGetVerificationScript(context, v)
require.NoError(t, err)
value := v.Estack().Pop().Value().([]byte)
require.Equal(t, witness.VerificationScript, value)
}
func TestECDSAVerify(t *testing.T) {
priv, err := keys.NewPrivateKey()
require.NoError(t, err)
chain := newTestChain(t)
defer chain.Close()
ic := chain.newInteropContext(trigger.Application, dao.NewSimple(storage.NewMemoryStore()), nil, nil)
runCase := func(t *testing.T, isErr bool, result interface{}, args ...interface{}) {
v := vm.New()
for i := range args {
v.Estack().PushVal(args[i])
}
var err error
func() {
defer func() {
if r := recover(); r != nil {
err = fmt.Errorf("panic: %v", r)
}
}()
err = crypto.ECDSAVerify(ic, v)
}()
if isErr {
require.Error(t, err)
return
}
require.NoError(t, err)
require.Equal(t, 1, v.Estack().Len())
require.Equal(t, result, v.Estack().Pop().Value().(bool))
}
msg := []byte("test message")
t.Run("success", func(t *testing.T) {
sign := priv.Sign(msg)
runCase(t, false, true, sign, priv.PublicKey().Bytes(), msg)
})
t.Run("signed interop item", func(t *testing.T) {
tx := transaction.New([]byte{0, 1, 2}, 1)
msg := tx.GetSignedPart()
sign := priv.Sign(msg)
runCase(t, false, true, sign, priv.PublicKey().Bytes(), stackitem.NewInterop(tx))
})
t.Run("signed script container", func(t *testing.T) {
tx := transaction.New([]byte{0, 1, 2}, 1)
msg := tx.GetSignedPart()
sign := priv.Sign(msg)
ic.Container = tx
runCase(t, false, true, sign, priv.PublicKey().Bytes(), stackitem.Null{})
})
t.Run("missing arguments", func(t *testing.T) {
runCase(t, true, false)
sign := priv.Sign(msg)
runCase(t, true, false, sign)
runCase(t, true, false, sign, priv.PublicKey().Bytes())
})
t.Run("invalid signature", func(t *testing.T) {
sign := priv.Sign(msg)
sign[0] = ^sign[0]
runCase(t, false, false, sign, priv.PublicKey().Bytes(), msg)
})
t.Run("invalid public key", func(t *testing.T) {
sign := priv.Sign(msg)
pub := priv.PublicKey().Bytes()
pub = pub[10:]
runCase(t, true, false, sign, pub, msg)
})
}
func TestAttrGetData(t *testing.T) {
v, tx, context, chain := createVMAndTX(t)
defer chain.Close()
v.Estack().PushVal(stackitem.NewInterop(&tx.Attributes[0]))
err := attrGetData(context, v)
require.NoError(t, err)
data := v.Estack().Pop().Value()
require.Equal(t, tx.Attributes[0].Data, data)
}
func TestAttrGetUsage(t *testing.T) {
v, tx, context, chain := createVMAndTX(t)
defer chain.Close()
v.Estack().PushVal(stackitem.NewInterop(&tx.Attributes[0]))
err := attrGetUsage(context, v)
require.NoError(t, err)
usage := v.Estack().Pop().Value()
require.Equal(t, big.NewInt(int64(tx.Attributes[0].Usage)), usage)
}
func TestAccountGetScriptHash(t *testing.T) {
v, accState, context, chain := createVMAndAccState(t)
defer chain.Close()
v.Estack().PushVal(stackitem.NewInterop(accState))
err := accountGetScriptHash(context, v)
require.NoError(t, err)
hash := v.Estack().Pop().Value()
require.Equal(t, accState.ScriptHash.BytesBE(), hash)
}
func TestContractGetScript(t *testing.T) {
v, contractState, context, chain := createVMAndContractState(t)
defer chain.Close()
v.Estack().PushVal(stackitem.NewInterop(contractState))
err := contractGetScript(context, v)
require.NoError(t, err)
script := v.Estack().Pop().Value()
require.Equal(t, contractState.Script, script)
}
func TestContractIsPayable(t *testing.T) {
v, contractState, context, chain := createVMAndContractState(t)
defer chain.Close()
v.Estack().PushVal(stackitem.NewInterop(contractState))
err := contractIsPayable(context, v)
require.NoError(t, err)
isPayable := v.Estack().Pop().Value()
require.Equal(t, contractState.IsPayable(), isPayable)
}
// Helper functions to create VM, InteropContext, TX, Account, Contract.
func createVMAndPushBlock(t *testing.T) (*vm.VM, *block.Block, *interop.Context, *Blockchain) {
v := vm.New()
block := newDumbBlock()
chain := newTestChain(t)
context := chain.newInteropContext(trigger.Application, dao.NewSimple(storage.NewMemoryStore()), block, nil)
v.Estack().PushVal(stackitem.NewInterop(block))
return v, block, context, chain
}
func createVMAndPushTX(t *testing.T) (*vm.VM, *transaction.Transaction, *interop.Context, *Blockchain) {
v, tx, context, chain := createVMAndTX(t)
v.Estack().PushVal(stackitem.NewInterop(tx))
return v, tx, context, chain
}
func createVMAndContractState(t *testing.T) (*vm.VM, *state.Contract, *interop.Context, *Blockchain) {
v := vm.New()
contractState := &state.Contract{
Script: []byte("testscript"),
ParamList: []smartcontract.ParamType{smartcontract.StringType, smartcontract.IntegerType, smartcontract.Hash160Type},
ReturnType: smartcontract.ArrayType,
Properties: smartcontract.HasStorage,
Name: random.String(10),
CodeVersion: random.String(10),
Author: random.String(10),
Email: random.String(10),
Description: random.String(10),
}
chain := newTestChain(t)
context := chain.newInteropContext(trigger.Application, dao.NewSimple(storage.NewMemoryStore()), nil, nil)
return v, contractState, context, chain
}
func createVMAndAccState(t *testing.T) (*vm.VM, *state.Account, *interop.Context, *Blockchain) {
v := vm.New()
rawHash := "4d3b96ae1bcc5a585e075e3b81920210dec16302"
hash, err := util.Uint160DecodeStringBE(rawHash)
accountState := state.NewAccount(hash)
require.NoError(t, err)
chain := newTestChain(t)
context := chain.newInteropContext(trigger.Application, dao.NewSimple(storage.NewMemoryStore()), nil, nil)
return v, accountState, context, chain
}
func createVMAndTX(t *testing.T) (*vm.VM, *transaction.Transaction, *interop.Context, *Blockchain) {
v := vm.New()
script := []byte{byte(opcode.PUSH1), byte(opcode.RET)}
tx := transaction.New(script, 0)
bytes := make([]byte, 1)
attributes := append(tx.Attributes, transaction.Attribute{
Usage: transaction.Description,
Data: bytes,
})
tx.Attributes = attributes
chain := newTestChain(t)
context := chain.newInteropContext(trigger.Application, dao.NewSimple(storage.NewMemoryStore()), nil, tx)
return v, tx, context, chain
}