mirror of
https://github.com/nspcc-dev/neo-go.git
synced 2024-12-14 11:16:17 +00:00
6c06bc57cc
Implement secp256k1 and secp256r1 recover interops, closes #1003. Note: We have to implement Koblitz-related math to recover keys properly with Neo.Cryptography.Secp256k1Recover interop as far as standard go elliptic package supports short-form Weierstrass curve with a=-3 only (see https://github.com/golang/go/issues/26776 for details). However, it's not the best choise to have a lot of such math in our project, so it would be better to use ready-made solution for Koblitz-related cryptography.
639 lines
19 KiB
Go
639 lines
19 KiB
Go
package core
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import (
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"bytes"
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"math/big"
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"testing"
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"github.com/btcsuite/btcd/btcec"
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"github.com/nspcc-dev/neo-go/pkg/core/block"
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"github.com/nspcc-dev/neo-go/pkg/core/dao"
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"github.com/nspcc-dev/neo-go/pkg/core/state"
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"github.com/nspcc-dev/neo-go/pkg/core/storage"
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"github.com/nspcc-dev/neo-go/pkg/core/transaction"
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"github.com/nspcc-dev/neo-go/pkg/crypto/hash"
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"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
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"github.com/nspcc-dev/neo-go/pkg/internal/random"
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"github.com/nspcc-dev/neo-go/pkg/smartcontract"
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"github.com/nspcc-dev/neo-go/pkg/smartcontract/trigger"
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"github.com/nspcc-dev/neo-go/pkg/util"
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"github.com/nspcc-dev/neo-go/pkg/vm"
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"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
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"github.com/stretchr/testify/require"
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)
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/* Missing tests:
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* TestTxGetReferences
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* TestTxGetUnspentCoins
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* TestTxGetWitnesses
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* TestBcGetAccount
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* TestBcGetAsset
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* TestAccountGetBalance
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* TestAccountIsStandard
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* TestCreateContractStateFromVM
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* TestContractCreate
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* TestContractMigrate
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* TestAssetCreate
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* TestAssetRenew
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* TestRuntimeSerialize
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* TestRuntimeDeserialize
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*/
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func TestGetTrigger(t *testing.T) {
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v, _, context, chain := createVMAndPushBlock(t)
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defer chain.Close()
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require.NoError(t, context.runtimeGetTrigger(v))
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}
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func TestStorageFind(t *testing.T) {
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v, contractState, context, chain := createVMAndContractState(t)
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defer chain.Close()
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skeys := [][]byte{{0x01, 0x02}, {0x02, 0x01}}
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items := []*state.StorageItem{
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{
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Value: []byte{0x01, 0x02, 0x03, 0x04},
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},
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{
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Value: []byte{0x04, 0x03, 0x02, 0x01},
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},
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}
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require.NoError(t, context.dao.PutContractState(contractState))
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scriptHash := contractState.ScriptHash()
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for i := range skeys {
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err := context.dao.PutStorageItem(scriptHash, skeys[i], items[i])
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require.NoError(t, err)
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}
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t.Run("normal invocation", func(t *testing.T) {
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v.Estack().PushVal([]byte{0x01})
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v.Estack().PushVal(vm.NewInteropItem(&StorageContext{ScriptHash: scriptHash}))
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err := context.storageFind(v)
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require.NoError(t, err)
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var iter *vm.InteropItem
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require.NotPanics(t, func() { iter = v.Estack().Top().Interop() })
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require.NoError(t, context.enumeratorNext(v))
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require.True(t, v.Estack().Pop().Bool())
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v.Estack().PushVal(iter)
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require.NoError(t, context.iteratorKey(v))
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require.Equal(t, []byte{0x01, 0x02}, v.Estack().Pop().Bytes())
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v.Estack().PushVal(iter)
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require.NoError(t, context.enumeratorValue(v))
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require.Equal(t, []byte{0x01, 0x02, 0x03, 0x04}, v.Estack().Pop().Bytes())
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v.Estack().PushVal(iter)
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require.NoError(t, context.enumeratorNext(v))
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require.False(t, v.Estack().Pop().Bool())
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})
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t.Run("invalid type for StorageContext", func(t *testing.T) {
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v.Estack().PushVal([]byte{0x01})
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v.Estack().PushVal(vm.NewInteropItem(nil))
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require.Error(t, context.storageFind(v))
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})
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t.Run("invalid script hash", func(t *testing.T) {
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invalidHash := scriptHash
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invalidHash[0] = ^invalidHash[0]
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v.Estack().PushVal([]byte{0x01})
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v.Estack().PushVal(vm.NewInteropItem(&StorageContext{ScriptHash: invalidHash}))
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require.Error(t, context.storageFind(v))
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})
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}
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func TestHeaderGetVersion(t *testing.T) {
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v, block, context, chain := createVMAndPushBlock(t)
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defer chain.Close()
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err := context.headerGetVersion(v)
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require.NoError(t, err)
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value := v.Estack().Pop().Value().(*big.Int)
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require.Equal(t, uint64(block.Version), value.Uint64())
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}
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func TestHeaderGetVersion_Negative(t *testing.T) {
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v := vm.New()
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block := newDumbBlock()
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chain := newTestChain(t)
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defer chain.Close()
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context := chain.newInteropContext(trigger.Application, dao.NewSimple(storage.NewMemoryStore()), block, nil)
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v.Estack().PushVal(vm.NewBoolItem(false))
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err := context.headerGetVersion(v)
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require.Errorf(t, err, "value is not a header or block")
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}
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func TestHeaderGetConsensusData(t *testing.T) {
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v, block, context, chain := createVMAndPushBlock(t)
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defer chain.Close()
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err := context.headerGetConsensusData(v)
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require.NoError(t, err)
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value := v.Estack().Pop().Value().(*big.Int)
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require.Equal(t, block.ConsensusData, value.Uint64())
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}
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func TestHeaderGetMerkleRoot(t *testing.T) {
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v, block, context, chain := createVMAndPushBlock(t)
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defer chain.Close()
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err := context.headerGetMerkleRoot(v)
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require.NoError(t, err)
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value := v.Estack().Pop().Value()
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require.Equal(t, block.MerkleRoot.BytesBE(), value)
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}
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func TestHeaderGetNextConsensus(t *testing.T) {
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v, block, context, chain := createVMAndPushBlock(t)
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defer chain.Close()
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err := context.headerGetNextConsensus(v)
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require.NoError(t, err)
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value := v.Estack().Pop().Value()
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require.Equal(t, block.NextConsensus.BytesBE(), value)
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}
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func TestTxGetAttributes(t *testing.T) {
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v, tx, context, chain := createVMAndPushTX(t)
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defer chain.Close()
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err := context.txGetAttributes(v)
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require.NoError(t, err)
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value := v.Estack().Pop().Value().([]vm.StackItem)
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require.Equal(t, tx.Attributes[0].Usage, value[0].Value().(*transaction.Attribute).Usage)
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}
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func TestTxGetInputs(t *testing.T) {
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v, tx, context, chain := createVMAndPushTX(t)
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defer chain.Close()
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err := context.txGetInputs(v)
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require.NoError(t, err)
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value := v.Estack().Pop().Value().([]vm.StackItem)
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require.Equal(t, tx.Inputs[0], *value[0].Value().(*transaction.Input))
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}
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func TestTxGetOutputs(t *testing.T) {
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v, tx, context, chain := createVMAndPushTX(t)
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defer chain.Close()
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err := context.txGetOutputs(v)
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require.NoError(t, err)
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value := v.Estack().Pop().Value().([]vm.StackItem)
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require.Equal(t, tx.Outputs[0], *value[0].Value().(*transaction.Output))
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}
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func TestTxGetType(t *testing.T) {
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v, tx, context, chain := createVMAndPushTX(t)
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defer chain.Close()
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err := context.txGetType(v)
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require.NoError(t, err)
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value := v.Estack().Pop().Value().(*big.Int)
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require.Equal(t, big.NewInt(int64(tx.Type)), value)
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}
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func TestInvocationTxGetScript(t *testing.T) {
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v, tx, context, chain := createVMAndPushTX(t)
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defer chain.Close()
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err := context.invocationTxGetScript(v)
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require.NoError(t, err)
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value := v.Estack().Pop().Value().([]byte)
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inv := tx.Data.(*transaction.InvocationTX)
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require.Equal(t, inv.Script, value)
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}
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func TestWitnessGetVerificationScript(t *testing.T) {
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v := vm.New()
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script := []byte{byte(opcode.PUSHM1), byte(opcode.RET)}
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witness := transaction.Witness{InvocationScript: nil, VerificationScript: script}
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chain := newTestChain(t)
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defer chain.Close()
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context := chain.newInteropContext(trigger.Application, dao.NewSimple(storage.NewMemoryStore()), nil, nil)
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v.Estack().PushVal(vm.NewInteropItem(&witness))
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err := context.witnessGetVerificationScript(v)
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require.NoError(t, err)
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value := v.Estack().Pop().Value().([]byte)
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require.Equal(t, witness.VerificationScript, value)
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}
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func TestPopInputFromVM(t *testing.T) {
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v, tx, _, chain := createVMAndTX(t)
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defer chain.Close()
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v.Estack().PushVal(vm.NewInteropItem(&tx.Inputs[0]))
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input, err := popInputFromVM(v)
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require.NoError(t, err)
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require.Equal(t, tx.Inputs[0], *input)
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}
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func TestInputGetHash(t *testing.T) {
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v, tx, context, chain := createVMAndTX(t)
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defer chain.Close()
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v.Estack().PushVal(vm.NewInteropItem(&tx.Inputs[0]))
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err := context.inputGetHash(v)
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require.NoError(t, err)
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hash := v.Estack().Pop().Value()
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require.Equal(t, tx.Inputs[0].PrevHash.BytesBE(), hash)
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}
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func TestInputGetIndex(t *testing.T) {
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v, tx, context, chain := createVMAndTX(t)
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defer chain.Close()
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v.Estack().PushVal(vm.NewInteropItem(&tx.Inputs[0]))
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err := context.inputGetIndex(v)
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require.NoError(t, err)
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index := v.Estack().Pop().Value()
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require.Equal(t, big.NewInt(int64(tx.Inputs[0].PrevIndex)), index)
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}
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func TestPopOutputFromVM(t *testing.T) {
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v, tx, _, chain := createVMAndTX(t)
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defer chain.Close()
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v.Estack().PushVal(vm.NewInteropItem(&tx.Outputs[0]))
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output, err := popOutputFromVM(v)
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require.NoError(t, err)
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require.Equal(t, tx.Outputs[0], *output)
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}
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func TestOutputGetAssetID(t *testing.T) {
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v, tx, context, chain := createVMAndTX(t)
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defer chain.Close()
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v.Estack().PushVal(vm.NewInteropItem(&tx.Outputs[0]))
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err := context.outputGetAssetID(v)
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require.NoError(t, err)
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assetID := v.Estack().Pop().Value()
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require.Equal(t, tx.Outputs[0].AssetID.BytesBE(), assetID)
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}
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func TestOutputGetScriptHash(t *testing.T) {
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v, tx, context, chain := createVMAndTX(t)
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defer chain.Close()
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v.Estack().PushVal(vm.NewInteropItem(&tx.Outputs[0]))
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err := context.outputGetScriptHash(v)
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require.NoError(t, err)
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scriptHash := v.Estack().Pop().Value()
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require.Equal(t, tx.Outputs[0].ScriptHash.BytesBE(), scriptHash)
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}
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func TestOutputGetValue(t *testing.T) {
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v, tx, context, chain := createVMAndTX(t)
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defer chain.Close()
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v.Estack().PushVal(vm.NewInteropItem(&tx.Outputs[0]))
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err := context.outputGetValue(v)
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require.NoError(t, err)
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amount := v.Estack().Pop().Value()
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require.Equal(t, big.NewInt(int64(tx.Outputs[0].Amount)), amount)
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}
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func TestAttrGetData(t *testing.T) {
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v, tx, context, chain := createVMAndTX(t)
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defer chain.Close()
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v.Estack().PushVal(vm.NewInteropItem(&tx.Attributes[0]))
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err := context.attrGetData(v)
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require.NoError(t, err)
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data := v.Estack().Pop().Value()
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require.Equal(t, tx.Attributes[0].Data, data)
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}
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func TestAttrGetUsage(t *testing.T) {
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v, tx, context, chain := createVMAndTX(t)
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defer chain.Close()
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v.Estack().PushVal(vm.NewInteropItem(&tx.Attributes[0]))
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err := context.attrGetUsage(v)
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require.NoError(t, err)
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usage := v.Estack().Pop().Value()
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require.Equal(t, big.NewInt(int64(tx.Attributes[0].Usage)), usage)
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}
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func TestAccountGetScriptHash(t *testing.T) {
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v, accState, context, chain := createVMAndAccState(t)
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defer chain.Close()
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v.Estack().PushVal(vm.NewInteropItem(accState))
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err := context.accountGetScriptHash(v)
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require.NoError(t, err)
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hash := v.Estack().Pop().Value()
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require.Equal(t, accState.ScriptHash.BytesBE(), hash)
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}
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func TestAccountGetVotes(t *testing.T) {
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v, accState, context, chain := createVMAndAccState(t)
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defer chain.Close()
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v.Estack().PushVal(vm.NewInteropItem(accState))
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err := context.accountGetVotes(v)
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require.NoError(t, err)
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votes := v.Estack().Pop().Value().([]vm.StackItem)
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require.Equal(t, vm.NewByteArrayItem(accState.Votes[0].Bytes()), votes[0])
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}
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func TestContractGetScript(t *testing.T) {
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v, contractState, context, chain := createVMAndContractState(t)
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defer chain.Close()
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v.Estack().PushVal(vm.NewInteropItem(contractState))
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err := context.contractGetScript(v)
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require.NoError(t, err)
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script := v.Estack().Pop().Value()
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require.Equal(t, contractState.Script, script)
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}
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func TestContractIsPayable(t *testing.T) {
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v, contractState, context, chain := createVMAndContractState(t)
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defer chain.Close()
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v.Estack().PushVal(vm.NewInteropItem(contractState))
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err := context.contractIsPayable(v)
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require.NoError(t, err)
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isPayable := v.Estack().Pop().Value()
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require.Equal(t, contractState.IsPayable(), isPayable)
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}
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func TestAssetGetAdmin(t *testing.T) {
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v, assetState, context, chain := createVMAndAssetState(t)
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defer chain.Close()
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v.Estack().PushVal(vm.NewInteropItem(assetState))
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err := context.assetGetAdmin(v)
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require.NoError(t, err)
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admin := v.Estack().Pop().Value()
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require.Equal(t, assetState.Admin.BytesBE(), admin)
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}
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func TestAssetGetAmount(t *testing.T) {
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v, assetState, context, chain := createVMAndAssetState(t)
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defer chain.Close()
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v.Estack().PushVal(vm.NewInteropItem(assetState))
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err := context.assetGetAmount(v)
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require.NoError(t, err)
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amount := v.Estack().Pop().Value()
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require.Equal(t, big.NewInt(int64(assetState.Amount)), amount)
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}
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func TestAssetGetAssetID(t *testing.T) {
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v, assetState, context, chain := createVMAndAssetState(t)
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defer chain.Close()
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v.Estack().PushVal(vm.NewInteropItem(assetState))
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err := context.assetGetAssetID(v)
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require.NoError(t, err)
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assetID := v.Estack().Pop().Value()
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require.Equal(t, assetState.ID.BytesBE(), assetID)
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}
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func TestAssetGetAssetType(t *testing.T) {
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v, assetState, context, chain := createVMAndAssetState(t)
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defer chain.Close()
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v.Estack().PushVal(vm.NewInteropItem(assetState))
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err := context.assetGetAssetType(v)
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require.NoError(t, err)
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assetType := v.Estack().Pop().Value()
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require.Equal(t, big.NewInt(int64(assetState.AssetType)), assetType)
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}
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func TestAssetGetAvailable(t *testing.T) {
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v, assetState, context, chain := createVMAndAssetState(t)
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defer chain.Close()
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v.Estack().PushVal(vm.NewInteropItem(assetState))
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err := context.assetGetAvailable(v)
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require.NoError(t, err)
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available := v.Estack().Pop().Value()
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require.Equal(t, big.NewInt(int64(assetState.Available)), available)
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}
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func TestAssetGetIssuer(t *testing.T) {
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v, assetState, context, chain := createVMAndAssetState(t)
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defer chain.Close()
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v.Estack().PushVal(vm.NewInteropItem(assetState))
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err := context.assetGetIssuer(v)
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require.NoError(t, err)
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issuer := v.Estack().Pop().Value()
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require.Equal(t, assetState.Issuer.BytesBE(), issuer)
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}
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func TestAssetGetOwner(t *testing.T) {
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v, assetState, context, chain := createVMAndAssetState(t)
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defer chain.Close()
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v.Estack().PushVal(vm.NewInteropItem(assetState))
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err := context.assetGetOwner(v)
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require.NoError(t, err)
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owner := v.Estack().Pop().Value()
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require.Equal(t, assetState.Owner.Bytes(), owner)
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}
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func TestAssetGetPrecision(t *testing.T) {
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v, assetState, context, chain := createVMAndAssetState(t)
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defer chain.Close()
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v.Estack().PushVal(vm.NewInteropItem(assetState))
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err := context.assetGetPrecision(v)
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require.NoError(t, err)
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precision := v.Estack().Pop().Value()
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require.Equal(t, big.NewInt(int64(assetState.Precision)), precision)
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}
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func TestSecp256k1Recover(t *testing.T) {
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v, context, chain := createVM(t)
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defer chain.Close()
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|
privateKey, err := btcec.NewPrivateKey(btcec.S256())
|
|
require.NoError(t, err)
|
|
message := []byte("The quick brown fox jumps over the lazy dog")
|
|
signature, err := privateKey.Sign(message)
|
|
require.NoError(t, err)
|
|
require.True(t, signature.Verify(message, privateKey.PubKey()))
|
|
pubKey := keys.PublicKey{
|
|
X: privateKey.PubKey().X,
|
|
Y: privateKey.PubKey().Y,
|
|
}
|
|
expected := pubKey.Bytes()[1:]
|
|
|
|
// We don't know which of two recovered keys suites, so let's try both.
|
|
putOnStackGetResult := func(isEven bool) []byte {
|
|
v.Estack().PushVal(message)
|
|
v.Estack().PushVal(isEven)
|
|
v.Estack().PushVal(signature.S.Bytes())
|
|
v.Estack().PushVal(signature.R.Bytes())
|
|
err = context.secp256k1Recover(v)
|
|
require.NoError(t, err)
|
|
return v.Estack().Pop().Value().([]byte)
|
|
}
|
|
|
|
// First one:
|
|
actualFalse := putOnStackGetResult(false)
|
|
// Second one:
|
|
actualTrue := putOnStackGetResult(true)
|
|
|
|
require.True(t, bytes.Compare(expected, actualFalse) != bytes.Compare(expected, actualTrue))
|
|
}
|
|
|
|
func TestSecp256r1Recover(t *testing.T) {
|
|
v, context, chain := createVM(t)
|
|
defer chain.Close()
|
|
|
|
privateKey, err := keys.NewPrivateKey()
|
|
require.NoError(t, err)
|
|
message := []byte("The quick brown fox jumps over the lazy dog")
|
|
messageHash := hash.Sha256(message).BytesBE()
|
|
signature := privateKey.Sign(message)
|
|
require.True(t, privateKey.PublicKey().Verify(signature, messageHash))
|
|
expected := privateKey.PublicKey().Bytes()[1:]
|
|
|
|
// We don't know which of two recovered keys suites, so let's try both.
|
|
putOnStackGetResult := func(isEven bool) []byte {
|
|
v.Estack().PushVal(messageHash)
|
|
v.Estack().PushVal(isEven)
|
|
v.Estack().PushVal(signature[32:64])
|
|
v.Estack().PushVal(signature[0:32])
|
|
err = context.secp256r1Recover(v)
|
|
require.NoError(t, err)
|
|
return v.Estack().Pop().Value().([]byte)
|
|
}
|
|
|
|
// First one:
|
|
actualFalse := putOnStackGetResult(false)
|
|
// Second one:
|
|
actualTrue := putOnStackGetResult(true)
|
|
|
|
require.True(t, bytes.Compare(expected, actualFalse) != bytes.Compare(expected, actualTrue))
|
|
}
|
|
|
|
// Helper functions to create VM, InteropContext, TX, Account, Contract, Asset.
|
|
|
|
func createVM(t *testing.T) (*vm.VM, *interopContext, *Blockchain) {
|
|
v := vm.New()
|
|
chain := newTestChain(t)
|
|
context := chain.newInteropContext(trigger.Application, dao.NewSimple(storage.NewMemoryStore()), nil, nil)
|
|
return v, context, chain
|
|
}
|
|
|
|
func createVMAndPushBlock(t *testing.T) (*vm.VM, *block.Block, *interopContext, *Blockchain) {
|
|
v := vm.New()
|
|
block := newDumbBlock()
|
|
chain := newTestChain(t)
|
|
context := chain.newInteropContext(trigger.Application, dao.NewSimple(storage.NewMemoryStore()), block, nil)
|
|
v.Estack().PushVal(vm.NewInteropItem(block))
|
|
return v, block, context, chain
|
|
}
|
|
|
|
func createVMAndPushTX(t *testing.T) (*vm.VM, *transaction.Transaction, *interopContext, *Blockchain) {
|
|
v, tx, context, chain := createVMAndTX(t)
|
|
v.Estack().PushVal(vm.NewInteropItem(tx))
|
|
return v, tx, context, chain
|
|
}
|
|
|
|
func createVMAndAssetState(t *testing.T) (*vm.VM, *state.Asset, *interopContext, *Blockchain) {
|
|
v := vm.New()
|
|
assetState := &state.Asset{
|
|
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(),
|
|
Expiration: 10,
|
|
IsFrozen: false,
|
|
}
|
|
|
|
chain := newTestChain(t)
|
|
context := chain.newInteropContext(trigger.Application, dao.NewSimple(storage.NewMemoryStore()), nil, nil)
|
|
return v, assetState, context, chain
|
|
}
|
|
|
|
func createVMAndContractState(t *testing.T) (*vm.VM, *state.Contract, *interopContext, *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, *interopContext, *Blockchain) {
|
|
v := vm.New()
|
|
rawHash := "4d3b96ae1bcc5a585e075e3b81920210dec16302"
|
|
hash, err := util.Uint160DecodeStringBE(rawHash)
|
|
accountState := state.NewAccount(hash)
|
|
|
|
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, dao.NewSimple(storage.NewMemoryStore()), nil, nil)
|
|
return v, accountState, context, chain
|
|
}
|
|
|
|
func createVMAndTX(t *testing.T) (*vm.VM, *transaction.Transaction, *interopContext, *Blockchain) {
|
|
v := vm.New()
|
|
script := []byte{byte(opcode.PUSH1), byte(opcode.RET)}
|
|
tx := transaction.NewInvocationTX(script, 0)
|
|
|
|
bytes := make([]byte, 1)
|
|
attributes := append(tx.Attributes, transaction.Attribute{
|
|
Usage: transaction.Description,
|
|
Data: bytes,
|
|
})
|
|
|
|
inputs := append(tx.Inputs, transaction.Input{
|
|
PrevHash: random.Uint256(),
|
|
PrevIndex: 1,
|
|
})
|
|
|
|
outputs := append(tx.Outputs, transaction.Output{
|
|
AssetID: random.Uint256(),
|
|
Amount: 10,
|
|
ScriptHash: random.Uint160(),
|
|
Position: 1,
|
|
})
|
|
|
|
tx.Attributes = attributes
|
|
tx.Inputs = inputs
|
|
tx.Outputs = outputs
|
|
chain := newTestChain(t)
|
|
context := chain.newInteropContext(trigger.Application, dao.NewSimple(storage.NewMemoryStore()), nil, tx)
|
|
return v, tx, context, chain
|
|
}
|