neo-go/pkg/core/interop_neo_test.go

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package core
import (
"math/big"
"testing"
"github.com/CityOfZion/neo-go/pkg/core/block"
"github.com/CityOfZion/neo-go/pkg/core/state"
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"github.com/CityOfZion/neo-go/pkg/core/storage"
"github.com/CityOfZion/neo-go/pkg/core/transaction"
"github.com/CityOfZion/neo-go/pkg/crypto/keys"
"github.com/CityOfZion/neo-go/pkg/internal/random"
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"github.com/CityOfZion/neo-go/pkg/smartcontract"
"github.com/CityOfZion/neo-go/pkg/smartcontract/trigger"
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"github.com/CityOfZion/neo-go/pkg/util"
"github.com/CityOfZion/neo-go/pkg/vm"
"github.com/CityOfZion/neo-go/pkg/vm/opcode"
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"github.com/stretchr/testify/require"
)
/* Missing tests:
* TestTxGetReferences
* TestTxGetUnspentCoins
* TestTxGetWitnesses
* TestBcGetAccount
* TestBcGetAsset
* TestAccountGetBalance
* TestAccountIsStandard
* TestCreateContractStateFromVM
* TestContractCreate
* TestContractMigrate
* TestAssetCreate
* TestAssetRenew
* TestRuntimeSerialize
* TestRuntimeDeserialize
*/
func TestStorageFind(t *testing.T) {
v, contractState, context, chain := createVMAndContractState(t)
defer chain.Close()
skeys := [][]byte{{0x01, 0x02}, {0x02, 0x01}}
items := []*state.StorageItem{
{
Value: []byte{0x01, 0x02, 0x03, 0x04},
},
{
Value: []byte{0x04, 0x03, 0x02, 0x01},
},
}
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(vm.NewInteropItem(&StorageContext{ScriptHash: scriptHash}))
err := context.storageFind(v)
require.NoError(t, err)
var iter *vm.InteropItem
require.NotPanics(t, func() { iter = v.Estack().Top().Interop() })
require.NoError(t, context.enumeratorNext(v))
require.True(t, v.Estack().Pop().Bool())
v.Estack().PushVal(iter)
require.NoError(t, context.iteratorKey(v))
require.Equal(t, []byte{0x01, 0x02}, v.Estack().Pop().Bytes())
v.Estack().PushVal(iter)
require.NoError(t, context.enumeratorValue(v))
require.Equal(t, []byte{0x01, 0x02, 0x03, 0x04}, v.Estack().Pop().Bytes())
v.Estack().PushVal(iter)
require.NoError(t, context.enumeratorNext(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(vm.NewInteropItem(nil))
require.Error(t, context.storageFind(v))
})
t.Run("invalid script hash", func(t *testing.T) {
invalidHash := scriptHash
invalidHash[0] = ^invalidHash[0]
v.Estack().PushVal([]byte{0x01})
v.Estack().PushVal(vm.NewInteropItem(&StorageContext{ScriptHash: invalidHash}))
require.Error(t, context.storageFind(v))
})
}
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func TestHeaderGetVersion(t *testing.T) {
v, block, context, chain := createVMAndPushBlock(t)
defer chain.Close()
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err := context.headerGetVersion(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, storage.NewMemoryStore(), block, nil)
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v.Estack().PushVal(vm.NewBoolItem(false))
err := context.headerGetVersion(v)
require.Errorf(t, err, "value is not a header or block")
}
func TestHeaderGetConsensusData(t *testing.T) {
v, block, context, chain := createVMAndPushBlock(t)
defer chain.Close()
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err := context.headerGetConsensusData(v)
require.NoError(t, err)
value := v.Estack().Pop().Value().(*big.Int)
require.Equal(t, block.ConsensusData, value.Uint64())
}
func TestHeaderGetMerkleRoot(t *testing.T) {
v, block, context, chain := createVMAndPushBlock(t)
defer chain.Close()
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err := context.headerGetMerkleRoot(v)
require.NoError(t, err)
value := v.Estack().Pop().Value()
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require.Equal(t, block.MerkleRoot.BytesLE(), value)
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}
func TestHeaderGetNextConsensus(t *testing.T) {
v, block, context, chain := createVMAndPushBlock(t)
defer chain.Close()
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err := context.headerGetNextConsensus(v)
require.NoError(t, err)
value := v.Estack().Pop().Value()
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require.Equal(t, block.NextConsensus.BytesLE(), value)
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}
func TestTxGetAttributes(t *testing.T) {
v, tx, context, chain := createVMAndPushTX(t)
defer chain.Close()
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err := context.txGetAttributes(v)
require.NoError(t, err)
value := v.Estack().Pop().Value().([]vm.StackItem)
require.Equal(t, tx.Attributes[0].Usage, value[0].Value().(*transaction.Attribute).Usage)
}
func TestTxGetInputs(t *testing.T) {
v, tx, context, chain := createVMAndPushTX(t)
defer chain.Close()
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err := context.txGetInputs(v)
require.NoError(t, err)
value := v.Estack().Pop().Value().([]vm.StackItem)
require.Equal(t, tx.Inputs[0], *value[0].Value().(*transaction.Input))
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}
func TestTxGetOutputs(t *testing.T) {
v, tx, context, chain := createVMAndPushTX(t)
defer chain.Close()
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err := context.txGetOutputs(v)
require.NoError(t, err)
value := v.Estack().Pop().Value().([]vm.StackItem)
require.Equal(t, tx.Outputs[0], *value[0].Value().(*transaction.Output))
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}
func TestTxGetType(t *testing.T) {
v, tx, context, chain := createVMAndPushTX(t)
defer chain.Close()
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err := context.txGetType(v)
require.NoError(t, err)
value := v.Estack().Pop().Value().(*big.Int)
require.Equal(t, big.NewInt(int64(tx.Type)), value)
}
func TestInvocationTxGetScript(t *testing.T) {
v, tx, context, chain := createVMAndPushTX(t)
defer chain.Close()
err := context.invocationTxGetScript(v)
require.NoError(t, err)
value := v.Estack().Pop().Value().([]byte)
inv := tx.Data.(*transaction.InvocationTX)
require.Equal(t, inv.Script, value)
}
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, storage.NewMemoryStore(), nil, nil)
v.Estack().PushVal(vm.NewInteropItem(&witness))
err := context.witnessGetVerificationScript(v)
require.NoError(t, err)
value := v.Estack().Pop().Value().([]byte)
require.Equal(t, witness.VerificationScript, value)
}
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func TestPopInputFromVM(t *testing.T) {
v, tx, _, chain := createVMAndTX(t)
defer chain.Close()
v.Estack().PushVal(vm.NewInteropItem(&tx.Inputs[0]))
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input, err := popInputFromVM(v)
require.NoError(t, err)
require.Equal(t, tx.Inputs[0], *input)
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}
func TestInputGetHash(t *testing.T) {
v, tx, context, chain := createVMAndTX(t)
defer chain.Close()
v.Estack().PushVal(vm.NewInteropItem(&tx.Inputs[0]))
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err := context.inputGetHash(v)
require.NoError(t, err)
hash := v.Estack().Pop().Value()
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require.Equal(t, tx.Inputs[0].PrevHash.BytesBE(), hash)
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}
func TestInputGetIndex(t *testing.T) {
v, tx, context, chain := createVMAndTX(t)
defer chain.Close()
v.Estack().PushVal(vm.NewInteropItem(&tx.Inputs[0]))
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err := context.inputGetIndex(v)
require.NoError(t, err)
index := v.Estack().Pop().Value()
require.Equal(t, big.NewInt(int64(tx.Inputs[0].PrevIndex)), index)
}
func TestPopOutputFromVM(t *testing.T) {
v, tx, _, chain := createVMAndTX(t)
defer chain.Close()
v.Estack().PushVal(vm.NewInteropItem(&tx.Outputs[0]))
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output, err := popOutputFromVM(v)
require.NoError(t, err)
require.Equal(t, tx.Outputs[0], *output)
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}
func TestOutputGetAssetID(t *testing.T) {
v, tx, context, chain := createVMAndTX(t)
defer chain.Close()
v.Estack().PushVal(vm.NewInteropItem(&tx.Outputs[0]))
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err := context.outputGetAssetID(v)
require.NoError(t, err)
assetID := v.Estack().Pop().Value()
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require.Equal(t, tx.Outputs[0].AssetID.BytesBE(), assetID)
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}
func TestOutputGetScriptHash(t *testing.T) {
v, tx, context, chain := createVMAndTX(t)
defer chain.Close()
v.Estack().PushVal(vm.NewInteropItem(&tx.Outputs[0]))
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err := context.outputGetScriptHash(v)
require.NoError(t, err)
scriptHash := v.Estack().Pop().Value()
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require.Equal(t, tx.Outputs[0].ScriptHash.BytesBE(), scriptHash)
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}
func TestOutputGetValue(t *testing.T) {
v, tx, context, chain := createVMAndTX(t)
defer chain.Close()
v.Estack().PushVal(vm.NewInteropItem(&tx.Outputs[0]))
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err := context.outputGetValue(v)
require.NoError(t, err)
amount := v.Estack().Pop().Value()
require.Equal(t, big.NewInt(int64(tx.Outputs[0].Amount)), amount)
}
func TestAttrGetData(t *testing.T) {
v, tx, context, chain := createVMAndTX(t)
defer chain.Close()
v.Estack().PushVal(vm.NewInteropItem(&tx.Attributes[0]))
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err := context.attrGetData(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(vm.NewInteropItem(&tx.Attributes[0]))
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err := context.attrGetUsage(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()
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v.Estack().PushVal(vm.NewInteropItem(accState))
err := context.accountGetScriptHash(v)
require.NoError(t, err)
hash := v.Estack().Pop().Value()
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require.Equal(t, accState.ScriptHash.BytesBE(), hash)
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}
func TestAccountGetVotes(t *testing.T) {
v, accState, context, chain := createVMAndAccState(t)
defer chain.Close()
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v.Estack().PushVal(vm.NewInteropItem(accState))
err := context.accountGetVotes(v)
require.NoError(t, err)
votes := v.Estack().Pop().Value().([]vm.StackItem)
require.Equal(t, vm.NewByteArrayItem(accState.Votes[0].Bytes()), votes[0])
}
func TestContractGetScript(t *testing.T) {
v, contractState, context, chain := createVMAndContractState(t)
defer chain.Close()
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v.Estack().PushVal(vm.NewInteropItem(contractState))
err := context.contractGetScript(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()
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v.Estack().PushVal(vm.NewInteropItem(contractState))
err := context.contractIsPayable(v)
require.NoError(t, err)
isPayable := v.Estack().Pop().Value()
require.Equal(t, contractState.IsPayable(), isPayable)
}
func TestAssetGetAdmin(t *testing.T) {
v, assetState, context, chain := createVMAndAssetState(t)
defer chain.Close()
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v.Estack().PushVal(vm.NewInteropItem(assetState))
err := context.assetGetAdmin(v)
require.NoError(t, err)
admin := v.Estack().Pop().Value()
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require.Equal(t, assetState.Admin.BytesBE(), admin)
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}
func TestAssetGetAmount(t *testing.T) {
v, assetState, context, chain := createVMAndAssetState(t)
defer chain.Close()
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v.Estack().PushVal(vm.NewInteropItem(assetState))
err := context.assetGetAmount(v)
require.NoError(t, err)
amount := v.Estack().Pop().Value()
require.Equal(t, big.NewInt(int64(assetState.Amount)), amount)
}
func TestAssetGetAssetID(t *testing.T) {
v, assetState, context, chain := createVMAndAssetState(t)
defer chain.Close()
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v.Estack().PushVal(vm.NewInteropItem(assetState))
err := context.assetGetAssetID(v)
require.NoError(t, err)
assetID := v.Estack().Pop().Value()
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require.Equal(t, assetState.ID.BytesBE(), assetID)
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}
func TestAssetGetAssetType(t *testing.T) {
v, assetState, context, chain := createVMAndAssetState(t)
defer chain.Close()
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v.Estack().PushVal(vm.NewInteropItem(assetState))
err := context.assetGetAssetType(v)
require.NoError(t, err)
assetType := v.Estack().Pop().Value()
require.Equal(t, big.NewInt(int64(assetState.AssetType)), assetType)
}
func TestAssetGetAvailable(t *testing.T) {
v, assetState, context, chain := createVMAndAssetState(t)
defer chain.Close()
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v.Estack().PushVal(vm.NewInteropItem(assetState))
err := context.assetGetAvailable(v)
require.NoError(t, err)
available := v.Estack().Pop().Value()
require.Equal(t, big.NewInt(int64(assetState.Available)), available)
}
func TestAssetGetIssuer(t *testing.T) {
v, assetState, context, chain := createVMAndAssetState(t)
defer chain.Close()
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v.Estack().PushVal(vm.NewInteropItem(assetState))
err := context.assetGetIssuer(v)
require.NoError(t, err)
issuer := v.Estack().Pop().Value()
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require.Equal(t, assetState.Issuer.BytesBE(), issuer)
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}
func TestAssetGetOwner(t *testing.T) {
v, assetState, context, chain := createVMAndAssetState(t)
defer chain.Close()
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v.Estack().PushVal(vm.NewInteropItem(assetState))
err := context.assetGetOwner(v)
require.NoError(t, err)
owner := v.Estack().Pop().Value()
require.Equal(t, assetState.Owner.Bytes(), owner)
}
func TestAssetGetPrecision(t *testing.T) {
v, assetState, context, chain := createVMAndAssetState(t)
defer chain.Close()
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v.Estack().PushVal(vm.NewInteropItem(assetState))
err := context.assetGetPrecision(v)
require.NoError(t, err)
precision := v.Estack().Pop().Value()
require.Equal(t, big.NewInt(int64(assetState.Precision)), precision)
}
// Helper functions to create VM, InteropContext, TX, Account, Contract, Asset.
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func createVMAndPushBlock(t *testing.T) (*vm.VM, *block.Block, *interopContext, *Blockchain) {
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v := vm.New()
block := newDumbBlock()
chain := newTestChain(t)
context := chain.newInteropContext(trigger.Application, storage.NewMemoryStore(), block, nil)
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v.Estack().PushVal(vm.NewInteropItem(block))
return v, block, context, chain
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}
func createVMAndPushTX(t *testing.T) (*vm.VM, *transaction.Transaction, *interopContext, *Blockchain) {
v, tx, context, chain := createVMAndTX(t)
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v.Estack().PushVal(vm.NewInteropItem(tx))
return v, tx, context, chain
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}
func createVMAndAssetState(t *testing.T) (*vm.VM, *state.Asset, *interopContext, *Blockchain) {
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v := vm.New()
assetState := &state.Asset{
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ID: util.Uint256{},
AssetType: transaction.GoverningToken,
Name: "TestAsset",
Amount: 1,
Available: 2,
Precision: 1,
FeeMode: 1,
FeeAddress: random.Uint160(),
Owner: keys.PublicKey{X: big.NewInt(1), Y: big.NewInt(1)},
Admin: random.Uint160(),
Issuer: random.Uint160(),
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Expiration: 10,
IsFrozen: false,
}
chain := newTestChain(t)
context := chain.newInteropContext(trigger.Application, storage.NewMemoryStore(), nil, nil)
return v, assetState, context, chain
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}
func createVMAndContractState(t *testing.T) (*vm.VM, *state.Contract, *interopContext, *Blockchain) {
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v := vm.New()
contractState := &state.Contract{
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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),
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}
chain := newTestChain(t)
context := chain.newInteropContext(trigger.Application, storage.NewMemoryStore(), nil, nil)
return v, contractState, context, chain
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}
func createVMAndAccState(t *testing.T) (*vm.VM, *state.Account, *interopContext, *Blockchain) {
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v := vm.New()
rawHash := "4d3b96ae1bcc5a585e075e3b81920210dec16302"
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hash, err := util.Uint160DecodeStringBE(rawHash)
accountState := state.NewAccount(hash)
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key := &keys.PublicKey{X: big.NewInt(1), Y: big.NewInt(1)}
accountState.Votes = []*keys.PublicKey{key}
require.NoError(t, err)
chain := newTestChain(t)
context := chain.newInteropContext(trigger.Application, storage.NewMemoryStore(), nil, nil)
return v, accountState, context, chain
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}
func createVMAndTX(t *testing.T) (*vm.VM, *transaction.Transaction, *interopContext, *Blockchain) {
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v := vm.New()
script := []byte{byte(opcode.PUSH1), byte(opcode.RET)}
tx := transaction.NewInvocationTX(script, 0)
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bytes := make([]byte, 1)
attributes := append(tx.Attributes, transaction.Attribute{
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Usage: transaction.Description,
Data: bytes,
})
inputs := append(tx.Inputs, transaction.Input{
PrevHash: random.Uint256(),
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PrevIndex: 1,
})
outputs := append(tx.Outputs, transaction.Output{
AssetID: random.Uint256(),
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Amount: 10,
ScriptHash: random.Uint160(),
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Position: 1,
})
tx.Attributes = attributes
tx.Inputs = inputs
tx.Outputs = outputs
chain := newTestChain(t)
context := chain.newInteropContext(trigger.Application, storage.NewMemoryStore(), nil, tx)
return v, tx, context, chain
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}