package core import ( "math/big" "testing" "github.com/nspcc-dev/neo-go/pkg/config/netmode" "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/iterator" istorage "github.com/nspcc-dev/neo-go/pkg/core/interop/storage" "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/hash" "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/opcode" "github.com/nspcc-dev/neo-go/pkg/vm/stackitem" "github.com/stretchr/testify/require" ) /* Missing tests: * TestTxGetWitnesses * TestAccountIsStandard * TestCreateContractStateFromVM * TestContractCreate * TestContractMigrate * TestRuntimeSerialize * TestRuntimeDeserialize */ func TestStorageFind(t *testing.T) { v, contractState, context, chain := createVMAndContractState(t) arr := []stackitem.Item{ stackitem.NewBigInteger(big.NewInt(42)), stackitem.NewByteArray([]byte("second")), stackitem.Null{}, } rawArr, err := stackitem.SerializeItem(stackitem.NewArray(arr)) require.NoError(t, err) rawArr0, err := stackitem.SerializeItem(stackitem.NewArray(arr[:0])) require.NoError(t, err) rawArr1, err := stackitem.SerializeItem(stackitem.NewArray(arr[:1])) require.NoError(t, err) skeys := [][]byte{{0x01, 0x02}, {0x02, 0x01}, {0x01, 0x01}, {0x04, 0x00}, {0x05, 0x00}, {0x06}, {0x07}, {0x08}} items := []*state.StorageItem{ { Value: []byte{0x01, 0x02, 0x03, 0x04}, }, { Value: []byte{0x04, 0x03, 0x02, 0x01}, }, { Value: []byte{0x03, 0x04, 0x05, 0x06}, }, { Value: []byte{byte(stackitem.ByteArrayT), 2, 0xCA, 0xFE}, }, { Value: []byte{0xFF, 0xFF}, }, { Value: rawArr, }, { Value: rawArr0, }, { Value: rawArr1, }, } require.NoError(t, chain.contracts.Management.PutContractState(chain.dao, contractState)) id := contractState.ID for i := range skeys { err := context.DAO.PutStorageItem(id, skeys[i], items[i]) require.NoError(t, err) } testFind := func(t *testing.T, prefix byte, opts int64, expected []stackitem.Item) { v.Estack().PushVal(opts) v.Estack().PushVal([]byte{prefix}) v.Estack().PushVal(stackitem.NewInterop(&StorageContext{ID: id})) err := storageFind(context) require.NoError(t, err) var iter *stackitem.Interop require.NotPanics(t, func() { iter = v.Estack().Pop().Interop() }) for i := range expected { // sorted indices with mathing prefix v.Estack().PushVal(iter) require.NoError(t, iterator.Next(context)) require.True(t, v.Estack().Pop().Bool()) v.Estack().PushVal(iter) if expected[i] == nil { require.Panics(t, func() { _ = iterator.Value(context) }) return } require.NoError(t, iterator.Value(context)) require.Equal(t, expected[i], v.Estack().Pop().Item()) } v.Estack().PushVal(iter) require.NoError(t, iterator.Next(context)) require.False(t, v.Estack().Pop().Bool()) } t.Run("normal invocation", func(t *testing.T) { testFind(t, 0x01, istorage.FindDefault, []stackitem.Item{ stackitem.NewStruct([]stackitem.Item{ stackitem.NewByteArray(skeys[2]), stackitem.NewByteArray(items[2].Value), }), stackitem.NewStruct([]stackitem.Item{ stackitem.NewByteArray(skeys[0]), stackitem.NewByteArray(items[0].Value), }), }) }) t.Run("keys only", func(t *testing.T) { testFind(t, 0x01, istorage.FindKeysOnly, []stackitem.Item{ stackitem.NewByteArray(skeys[2]), stackitem.NewByteArray(skeys[0]), }) }) t.Run("remove prefix", func(t *testing.T) { testFind(t, 0x01, istorage.FindKeysOnly|istorage.FindRemovePrefix, []stackitem.Item{ stackitem.NewByteArray(skeys[2][1:]), stackitem.NewByteArray(skeys[0][1:]), }) }) t.Run("values only", func(t *testing.T) { testFind(t, 0x01, istorage.FindValuesOnly, []stackitem.Item{ stackitem.NewByteArray(items[2].Value), stackitem.NewByteArray(items[0].Value), }) }) t.Run("deserialize values", func(t *testing.T) { testFind(t, 0x04, istorage.FindValuesOnly|istorage.FindDeserialize, []stackitem.Item{ stackitem.NewByteArray(items[3].Value[2:]), }) t.Run("invalid", func(t *testing.T) { v.Estack().PushVal(istorage.FindDeserialize) v.Estack().PushVal([]byte{0x05}) v.Estack().PushVal(stackitem.NewInterop(&StorageContext{ID: id})) err := storageFind(context) require.NoError(t, err) var iter *stackitem.Interop require.NotPanics(t, func() { iter = v.Estack().Pop().Interop() }) v.Estack().PushVal(iter) require.NoError(t, iterator.Next(context)) v.Estack().PushVal(iter) require.Panics(t, func() { _ = iterator.Value(context) }) }) }) t.Run("PickN", func(t *testing.T) { testFind(t, 0x06, istorage.FindPick0|istorage.FindValuesOnly|istorage.FindDeserialize, arr[:1]) testFind(t, 0x06, istorage.FindPick1|istorage.FindValuesOnly|istorage.FindDeserialize, arr[1:2]) // Array with 0 elements. testFind(t, 0x07, istorage.FindPick0|istorage.FindValuesOnly|istorage.FindDeserialize, []stackitem.Item{nil}) // Array with 1 element. testFind(t, 0x08, istorage.FindPick1|istorage.FindValuesOnly|istorage.FindDeserialize, []stackitem.Item{nil}) // Not an array, but serialized ByteArray. testFind(t, 0x04, istorage.FindPick1|istorage.FindValuesOnly|istorage.FindDeserialize, []stackitem.Item{nil}) }) t.Run("normal invocation, empty result", func(t *testing.T) { testFind(t, 0x03, istorage.FindDefault, nil) }) t.Run("invalid options", func(t *testing.T) { invalid := []int64{ istorage.FindKeysOnly | istorage.FindValuesOnly, ^istorage.FindAll, istorage.FindKeysOnly | istorage.FindDeserialize, istorage.FindPick0, istorage.FindPick0 | istorage.FindPick1 | istorage.FindDeserialize, istorage.FindPick0 | istorage.FindPick1, } for _, opts := range invalid { v.Estack().PushVal(opts) v.Estack().PushVal([]byte{0x01}) v.Estack().PushVal(stackitem.NewInterop(&StorageContext{ID: id})) require.Error(t, storageFind(context)) } }) t.Run("invalid type for StorageContext", func(t *testing.T) { v.Estack().PushVal(istorage.FindDefault) v.Estack().PushVal([]byte{0x01}) v.Estack().PushVal(stackitem.NewInterop(nil)) require.Error(t, storageFind(context)) }) t.Run("invalid id", func(t *testing.T) { invalidID := id + 1 v.Estack().PushVal(istorage.FindDefault) v.Estack().PushVal([]byte{0x01}) v.Estack().PushVal(stackitem.NewInterop(&StorageContext{ID: invalidID})) require.NoError(t, storageFind(context)) require.NoError(t, iterator.Next(context)) require.False(t, v.Estack().Pop().Bool()) }) } // Helper functions to create VM, InteropContext, TX, Account, Contract. func createVM(t *testing.T) (*vm.VM, *interop.Context, *Blockchain) { chain := newTestChain(t) context := chain.newInteropContext(trigger.Application, dao.NewSimple(storage.NewMemoryStore(), netmode.UnitTestNet, chain.config.StateRootInHeader), nil, nil) v := context.SpawnVM() return v, context, chain } func createVMAndPushBlock(t *testing.T) (*vm.VM, *block.Block, *interop.Context, *Blockchain) { v, block, context, chain := createVMAndBlock(t) v.Estack().PushVal(stackitem.NewInterop(block)) return v, block, context, chain } func createVMAndBlock(t *testing.T) (*vm.VM, *block.Block, *interop.Context, *Blockchain) { block := newDumbBlock() chain := newTestChain(t) d := dao.NewSimple(storage.NewMemoryStore(), netmode.UnitTestNet, chain.GetConfig().StateRootInHeader) context := chain.newInteropContext(trigger.Application, d, block, nil) v := context.SpawnVM() 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) { script := []byte("testscript") m := manifest.NewManifest("Test") ne, err := nef.NewFile(script) require.NoError(t, err) contractState := &state.Contract{ ContractBase: state.ContractBase{ NEF: *ne, Hash: hash.Hash160(script), Manifest: *m, ID: 123, }, } chain := newTestChain(t) d := dao.NewSimple(storage.NewMemoryStore(), netmode.UnitTestNet, chain.config.StateRootInHeader) context := chain.newInteropContext(trigger.Application, d, nil, nil) v := context.SpawnVM() return v, contractState, context, chain } func createVMAndTX(t *testing.T) (*vm.VM, *transaction.Transaction, *interop.Context, *Blockchain) { script := []byte{byte(opcode.PUSH1), byte(opcode.RET)} tx := transaction.New(netmode.UnitTestNet, script, 0) tx.Signers = []transaction.Signer{{Account: util.Uint160{1, 2, 3, 4}}} tx.Scripts = []transaction.Witness{{InvocationScript: []byte{}, VerificationScript: []byte{}}} chain := newTestChain(t) d := dao.NewSimple(storage.NewMemoryStore(), netmode.UnitTestNet, chain.config.StateRootInHeader) context := chain.newInteropContext(trigger.Application, d, nil, tx) v := context.SpawnVM() return v, tx, context, chain }