neo-go/pkg/core/interop/runtime/ext_test.go

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package runtime_test
import (
"encoding/json"
"math"
"math/big"
"path/filepath"
"testing"
"github.com/nspcc-dev/neo-go/internal/contracts"
"github.com/nspcc-dev/neo-go/internal/random"
"github.com/nspcc-dev/neo-go/pkg/config"
"github.com/nspcc-dev/neo-go/pkg/config/netmode"
"github.com/nspcc-dev/neo-go/pkg/core"
"github.com/nspcc-dev/neo-go/pkg/core/block"
"github.com/nspcc-dev/neo-go/pkg/core/interop"
"github.com/nspcc-dev/neo-go/pkg/core/interop/interopnames"
"github.com/nspcc-dev/neo-go/pkg/core/interop/runtime"
"github.com/nspcc-dev/neo-go/pkg/core/native"
"github.com/nspcc-dev/neo-go/pkg/core/native/nativenames"
"github.com/nspcc-dev/neo-go/pkg/core/state"
"github.com/nspcc-dev/neo-go/pkg/core/transaction"
"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/io"
"github.com/nspcc-dev/neo-go/pkg/neotest"
"github.com/nspcc-dev/neo-go/pkg/neotest/chain"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/callflag"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/manifest"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/nef"
"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/emit"
"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
"github.com/stretchr/testify/require"
)
var pathToInternalContracts = filepath.Join("..", "..", "..", "..", "internal", "contracts")
func getSharpTestTx(sender util.Uint160) *transaction.Transaction {
tx := transaction.New([]byte{byte(opcode.PUSH2)}, 0)
tx.Nonce = 0
tx.Signers = append(tx.Signers, transaction.Signer{
Account: sender,
Scopes: transaction.CalledByEntry,
})
tx.Attributes = []transaction.Attribute{}
tx.Scripts = append(tx.Scripts, transaction.Witness{InvocationScript: []byte{}, VerificationScript: []byte{}})
return tx
}
func getSharpTestGenesis(t *testing.T) *block.Block {
const configPath = "../../../../config"
cfg, err := config.Load(configPath, netmode.MainNet)
require.NoError(t, err)
b, err := core.CreateGenesisBlock(cfg.ProtocolConfiguration)
require.NoError(t, err)
return b
}
func createVM(t testing.TB) (*vm.VM, *interop.Context, *core.Blockchain) {
chain, _ := chain.NewSingle(t)
ic := chain.GetTestVM(trigger.Application, &transaction.Transaction{}, &block.Block{})
v := ic.SpawnVM()
return v, ic, chain
}
func loadScriptWithHashAndFlags(ic *interop.Context, script []byte, hash util.Uint160, f callflag.CallFlag, args ...interface{}) {
ic.SpawnVM()
ic.VM.LoadScriptWithHash(script, hash, f)
for i := range args {
ic.VM.Estack().PushVal(args[i])
}
ic.VM.GasLimit = -1
}
func TestBurnGas(t *testing.T) {
bc, acc := chain.NewSingle(t)
e := neotest.NewExecutor(t, bc, acc, acc)
managementInvoker := e.ValidatorInvoker(e.NativeHash(t, nativenames.Management))
cs, _ := contracts.GetTestContractState(t, pathToInternalContracts, 0, 1, acc.ScriptHash())
rawManifest, err := json.Marshal(cs.Manifest)
require.NoError(t, err)
rawNef, err := cs.NEF.Bytes()
require.NoError(t, err)
tx := managementInvoker.PrepareInvoke(t, "deploy", rawNef, rawManifest)
e.AddNewBlock(t, tx)
e.CheckHalt(t, tx.Hash())
cInvoker := e.ValidatorInvoker(cs.Hash)
t.Run("good", func(t *testing.T) {
h := cInvoker.Invoke(t, stackitem.Null{}, "burnGas", int64(1))
res := e.GetTxExecResult(t, h)
t.Run("gas limit exceeded", func(t *testing.T) {
tx := e.NewUnsignedTx(t, cs.Hash, "burnGas", int64(2))
e.SignTx(t, tx, res.GasConsumed, acc)
e.AddNewBlock(t, tx)
e.CheckFault(t, tx.Hash(), "GAS limit exceeded")
})
})
t.Run("too big integer", func(t *testing.T) {
gas := big.NewInt(math.MaxInt64)
gas.Add(gas, big.NewInt(1))
cInvoker.InvokeFail(t, "invalid GAS value", "burnGas", gas)
})
t.Run("zero GAS", func(t *testing.T) {
cInvoker.InvokeFail(t, "GAS must be positive", "burnGas", int64(0))
})
}
func TestCheckWitness(t *testing.T) {
_, ic, _ := createVM(t)
script := []byte{byte(opcode.RET)}
scriptHash := hash.Hash160(script)
check := func(t *testing.T, ic *interop.Context, arg interface{}, shouldFail bool, expected ...bool) {
ic.VM.Estack().PushVal(arg)
err := runtime.CheckWitness(ic)
if shouldFail {
require.Error(t, err)
} else {
require.NoError(t, err)
require.NotNil(t, expected)
actual, ok := ic.VM.Estack().Pop().Value().(bool)
require.True(t, ok)
require.Equal(t, expected[0], actual)
}
}
t.Run("error", func(t *testing.T) {
t.Run("not a hash or key", func(t *testing.T) {
check(t, ic, []byte{1, 2, 3}, true)
})
t.Run("script container is not a transaction", func(t *testing.T) {
loadScriptWithHashAndFlags(ic, script, scriptHash, callflag.ReadStates)
check(t, ic, random.Uint160().BytesBE(), true)
})
t.Run("check scope", func(t *testing.T) {
t.Run("CustomGroups, missing ReadStates flag", func(t *testing.T) {
hash := random.Uint160()
tx := &transaction.Transaction{
Signers: []transaction.Signer{
{
Account: hash,
Scopes: transaction.CustomGroups,
AllowedGroups: []*keys.PublicKey{},
},
},
}
ic.Tx = tx
callingScriptHash := scriptHash
loadScriptWithHashAndFlags(ic, script, callingScriptHash, callflag.All)
ic.VM.LoadScriptWithHash([]byte{0x1}, random.Uint160(), callflag.AllowCall)
check(t, ic, hash.BytesBE(), true)
})
t.Run("Rules, missing ReadStates flag", func(t *testing.T) {
hash := random.Uint160()
pk, err := keys.NewPrivateKey()
require.NoError(t, err)
tx := &transaction.Transaction{
Signers: []transaction.Signer{
{
Account: hash,
Scopes: transaction.Rules,
Rules: []transaction.WitnessRule{{
Action: transaction.WitnessAllow,
Condition: (*transaction.ConditionGroup)(pk.PublicKey()),
}},
},
},
}
ic.Tx = tx
callingScriptHash := scriptHash
loadScriptWithHashAndFlags(ic, script, callingScriptHash, callflag.All)
ic.VM.LoadScriptWithHash([]byte{0x1}, random.Uint160(), callflag.AllowCall)
check(t, ic, hash.BytesBE(), true)
})
})
})
t.Run("positive", func(t *testing.T) {
t.Run("calling scripthash", func(t *testing.T) {
t.Run("hashed witness", func(t *testing.T) {
callingScriptHash := scriptHash
loadScriptWithHashAndFlags(ic, script, callingScriptHash, callflag.All)
ic.VM.LoadScriptWithHash([]byte{0x1}, random.Uint160(), callflag.All)
check(t, ic, callingScriptHash.BytesBE(), false, true)
})
t.Run("keyed witness", func(t *testing.T) {
pk, err := keys.NewPrivateKey()
require.NoError(t, err)
callingScriptHash := pk.PublicKey().GetScriptHash()
loadScriptWithHashAndFlags(ic, script, callingScriptHash, callflag.All)
ic.VM.LoadScriptWithHash([]byte{0x1}, random.Uint160(), callflag.All)
check(t, ic, pk.PublicKey().Bytes(), false, true)
})
})
t.Run("check scope", func(t *testing.T) {
t.Run("Global", func(t *testing.T) {
hash := random.Uint160()
tx := &transaction.Transaction{
Signers: []transaction.Signer{
{
Account: hash,
Scopes: transaction.Global,
},
},
}
loadScriptWithHashAndFlags(ic, script, scriptHash, callflag.ReadStates)
ic.Tx = tx
check(t, ic, hash.BytesBE(), false, true)
})
t.Run("CalledByEntry", func(t *testing.T) {
hash := random.Uint160()
tx := &transaction.Transaction{
Signers: []transaction.Signer{
{
Account: hash,
Scopes: transaction.CalledByEntry,
},
},
}
loadScriptWithHashAndFlags(ic, script, scriptHash, callflag.ReadStates)
ic.Tx = tx
check(t, ic, hash.BytesBE(), false, true)
})
t.Run("CustomContracts", func(t *testing.T) {
hash := random.Uint160()
tx := &transaction.Transaction{
Signers: []transaction.Signer{
{
Account: hash,
Scopes: transaction.CustomContracts,
AllowedContracts: []util.Uint160{scriptHash},
},
},
}
loadScriptWithHashAndFlags(ic, script, scriptHash, callflag.ReadStates)
ic.Tx = tx
check(t, ic, hash.BytesBE(), false, true)
})
t.Run("CustomGroups", func(t *testing.T) {
t.Run("unknown scripthash", func(t *testing.T) {
hash := random.Uint160()
tx := &transaction.Transaction{
Signers: []transaction.Signer{
{
Account: hash,
Scopes: transaction.CustomGroups,
AllowedGroups: []*keys.PublicKey{},
},
},
}
loadScriptWithHashAndFlags(ic, script, scriptHash, callflag.ReadStates)
ic.Tx = tx
check(t, ic, hash.BytesBE(), false, false)
})
t.Run("positive", func(t *testing.T) {
targetHash := random.Uint160()
pk, err := keys.NewPrivateKey()
require.NoError(t, err)
tx := &transaction.Transaction{
Signers: []transaction.Signer{
{
Account: targetHash,
Scopes: transaction.CustomGroups,
AllowedGroups: []*keys.PublicKey{pk.PublicKey()},
},
},
}
contractScript := []byte{byte(opcode.PUSH1), byte(opcode.RET)}
contractScriptHash := hash.Hash160(contractScript)
ne, err := nef.NewFile(contractScript)
require.NoError(t, err)
contractState := &state.Contract{
ContractBase: state.ContractBase{
ID: 15,
Hash: contractScriptHash,
NEF: *ne,
Manifest: manifest.Manifest{
Groups: []manifest.Group{{PublicKey: pk.PublicKey(), Signature: make([]byte, keys.SignatureLen)}},
},
},
}
require.NoError(t, native.PutContractState(ic.DAO, contractState))
loadScriptWithHashAndFlags(ic, contractScript, contractScriptHash, callflag.All)
ic.Tx = tx
check(t, ic, targetHash.BytesBE(), false, true)
})
})
t.Run("Rules", func(t *testing.T) {
t.Run("no match", func(t *testing.T) {
hash := random.Uint160()
tx := &transaction.Transaction{
Signers: []transaction.Signer{
{
Account: hash,
Scopes: transaction.Rules,
Rules: []transaction.WitnessRule{{
Action: transaction.WitnessAllow,
Condition: (*transaction.ConditionScriptHash)(&hash),
}},
},
},
}
loadScriptWithHashAndFlags(ic, script, scriptHash, callflag.ReadStates)
ic.Tx = tx
check(t, ic, hash.BytesBE(), false, false)
})
t.Run("allow", func(t *testing.T) {
hash := random.Uint160()
var cond = true
tx := &transaction.Transaction{
Signers: []transaction.Signer{
{
Account: hash,
Scopes: transaction.Rules,
Rules: []transaction.WitnessRule{{
Action: transaction.WitnessAllow,
Condition: (*transaction.ConditionBoolean)(&cond),
}},
},
},
}
loadScriptWithHashAndFlags(ic, script, scriptHash, callflag.ReadStates)
ic.Tx = tx
check(t, ic, hash.BytesBE(), false, true)
})
t.Run("deny", func(t *testing.T) {
hash := random.Uint160()
var cond = true
tx := &transaction.Transaction{
Signers: []transaction.Signer{
{
Account: hash,
Scopes: transaction.Rules,
Rules: []transaction.WitnessRule{{
Action: transaction.WitnessDeny,
Condition: (*transaction.ConditionBoolean)(&cond),
}},
},
},
}
loadScriptWithHashAndFlags(ic, script, scriptHash, callflag.ReadStates)
ic.Tx = tx
check(t, ic, hash.BytesBE(), false, false)
})
})
t.Run("bad scope", func(t *testing.T) {
hash := random.Uint160()
tx := &transaction.Transaction{
Signers: []transaction.Signer{
{
Account: hash,
Scopes: transaction.None,
},
},
}
loadScriptWithHashAndFlags(ic, script, scriptHash, callflag.ReadStates)
ic.Tx = tx
check(t, ic, hash.BytesBE(), false, false)
})
})
})
}
func TestGasLeft(t *testing.T) {
const runtimeGasLeftPrice = 1 << 4
bc, acc := chain.NewSingle(t)
e := neotest.NewExecutor(t, bc, acc, acc)
w := io.NewBufBinWriter()
gasLimit := 1100
emit.Syscall(w.BinWriter, interopnames.SystemRuntimeGasLeft)
emit.Syscall(w.BinWriter, interopnames.SystemRuntimeGasLeft)
require.NoError(t, w.Err)
tx := transaction.New(w.Bytes(), int64(gasLimit))
tx.Nonce = neotest.Nonce()
tx.ValidUntilBlock = e.Chain.BlockHeight() + 1
e.SignTx(t, tx, int64(gasLimit), acc)
e.AddNewBlock(t, tx)
e.CheckHalt(t, tx.Hash())
res := e.GetTxExecResult(t, tx.Hash())
l1 := res.Stack[0].Value().(*big.Int)
l2 := res.Stack[1].Value().(*big.Int)
require.Equal(t, int64(gasLimit-runtimeGasLeftPrice*interop.DefaultBaseExecFee), l1.Int64())
require.Equal(t, int64(gasLimit-2*runtimeGasLeftPrice*interop.DefaultBaseExecFee), l2.Int64())
}
func TestGetAddressVersion(t *testing.T) {
bc, acc := chain.NewSingle(t)
e := neotest.NewExecutor(t, bc, acc, acc)
w := io.NewBufBinWriter()
emit.Syscall(w.BinWriter, interopnames.SystemRuntimeGetAddressVersion)
require.NoError(t, w.Err)
e.InvokeScriptCheckHALT(t, w.Bytes(), []neotest.Signer{acc}, stackitem.NewBigInteger(big.NewInt(int64(address.NEO3Prefix))))
}
func TestGetInvocationCounter(t *testing.T) {
v, ic, _ := createVM(t)
cs, _ := contracts.GetTestContractState(t, pathToInternalContracts, 4, 5, random.Uint160()) // sender and IDs are not important for the test
require.NoError(t, native.PutContractState(ic.DAO, cs))
ic.Invocations[hash.Hash160([]byte{2})] = 42
t.Run("No invocations", func(t *testing.T) {
v.Load([]byte{1})
// do not return an error in this case.
require.NoError(t, runtime.GetInvocationCounter(ic))
require.EqualValues(t, 1, v.Estack().Pop().BigInt().Int64())
})
t.Run("NonZero", func(t *testing.T) {
v.Load([]byte{2})
require.NoError(t, runtime.GetInvocationCounter(ic))
require.EqualValues(t, 42, v.Estack().Pop().BigInt().Int64())
})
t.Run("Contract", func(t *testing.T) {
w := io.NewBufBinWriter()
emit.AppCall(w.BinWriter, cs.Hash, "invocCounter", callflag.All)
v.LoadWithFlags(w.Bytes(), callflag.All)
require.NoError(t, v.Run())
require.EqualValues(t, 1, v.Estack().Pop().BigInt().Int64())
})
}
func TestGetNetwork(t *testing.T) {
bc, acc := chain.NewSingle(t)
e := neotest.NewExecutor(t, bc, acc, acc)
w := io.NewBufBinWriter()
emit.Syscall(w.BinWriter, interopnames.SystemRuntimeGetNetwork)
require.NoError(t, w.Err)
e.InvokeScriptCheckHALT(t, w.Bytes(), []neotest.Signer{acc}, stackitem.NewBigInteger(big.NewInt(int64(bc.GetConfig().Magic))))
}
func TestGetNotifications(t *testing.T) {
v, ic, _ := createVM(t)
ic.Notifications = []state.NotificationEvent{
{ScriptHash: util.Uint160{1}, Name: "Event1", Item: stackitem.NewArray([]stackitem.Item{stackitem.NewByteArray([]byte{11})})},
{ScriptHash: util.Uint160{2}, Name: "Event2", Item: stackitem.NewArray([]stackitem.Item{stackitem.NewByteArray([]byte{22})})},
{ScriptHash: util.Uint160{1}, Name: "Event1", Item: stackitem.NewArray([]stackitem.Item{stackitem.NewByteArray([]byte{33})})},
}
t.Run("NoFilter", func(t *testing.T) {
v.Estack().PushVal(stackitem.Null{})
require.NoError(t, runtime.GetNotifications(ic))
arr := v.Estack().Pop().Array()
require.Equal(t, len(ic.Notifications), len(arr))
for i := range arr {
elem := arr[i].Value().([]stackitem.Item)
require.Equal(t, ic.Notifications[i].ScriptHash.BytesBE(), elem[0].Value())
name, err := stackitem.ToString(elem[1])
require.NoError(t, err)
require.Equal(t, ic.Notifications[i].Name, name)
ic.Notifications[i].Item.MarkAsReadOnly() // tiny hack for test to be able to compare object references.
require.Equal(t, ic.Notifications[i].Item, elem[2])
}
})
t.Run("WithFilter", func(t *testing.T) {
h := util.Uint160{2}.BytesBE()
v.Estack().PushVal(h)
require.NoError(t, runtime.GetNotifications(ic))
arr := v.Estack().Pop().Array()
require.Equal(t, 1, len(arr))
elem := arr[0].Value().([]stackitem.Item)
require.Equal(t, h, elem[0].Value())
name, err := stackitem.ToString(elem[1])
require.NoError(t, err)
require.Equal(t, ic.Notifications[1].Name, name)
require.Equal(t, ic.Notifications[1].Item, elem[2])
})
}
func TestGetRandom_DifferentTransactions(t *testing.T) {
bc, acc := chain.NewSingle(t)
e := neotest.NewExecutor(t, bc, acc, acc)
w := io.NewBufBinWriter()
emit.Syscall(w.BinWriter, interopnames.SystemRuntimeGetRandom)
require.NoError(t, w.Err)
script := w.Bytes()
tx1 := e.PrepareInvocation(t, script, []neotest.Signer{e.Validator}, bc.BlockHeight()+1)
tx2 := e.PrepareInvocation(t, script, []neotest.Signer{e.Validator}, bc.BlockHeight()+1)
e.AddNewBlock(t, tx1, tx2)
e.CheckHalt(t, tx1.Hash())
e.CheckHalt(t, tx2.Hash())
res1 := e.GetTxExecResult(t, tx1.Hash())
res2 := e.GetTxExecResult(t, tx2.Hash())
r1, err := res1.Stack[0].TryInteger()
require.NoError(t, err)
r2, err := res2.Stack[0].TryInteger()
require.NoError(t, err)
require.NotEqual(t, r1, r2)
}
// Tests are taken from
// https://github.com/neo-project/neo/blob/master/tests/neo.UnitTests/SmartContract/UT_ApplicationEngine.Runtime.cs
func TestGetRandomCompatibility(t *testing.T) {
bc, _ := chain.NewSingle(t)
b := getSharpTestGenesis(t)
tx := getSharpTestTx(util.Uint160{})
ic := bc.GetTestVM(trigger.Application, tx, b)
ic.Network = 860833102 // Old mainnet magic used by C# tests.
ic.VM = vm.New()
ic.VM.LoadScript([]byte{0x01})
ic.VM.GasLimit = 1100_00000000
require.NoError(t, runtime.GetRandom(ic))
require.Equal(t, "271339657438512451304577787170704246350", ic.VM.Estack().Pop().BigInt().String())
require.NoError(t, runtime.GetRandom(ic))
require.Equal(t, "98548189559099075644778613728143131367", ic.VM.Estack().Pop().BigInt().String())
require.NoError(t, runtime.GetRandom(ic))
require.Equal(t, "247654688993873392544380234598471205121", ic.VM.Estack().Pop().BigInt().String())
require.NoError(t, runtime.GetRandom(ic))
require.Equal(t, "291082758879475329976578097236212073607", ic.VM.Estack().Pop().BigInt().String())
require.NoError(t, runtime.GetRandom(ic))
require.Equal(t, "247152297361212656635216876565962360375", ic.VM.Estack().Pop().BigInt().String())
}