mirror of
https://github.com/nspcc-dev/neo-go.git
synced 2024-10-16 15:43:25 +00:00
f5794e91a2
Refs #3415 This commit introduces a small new change that implements the Hooks API and more specifically the OnExecHook. This feature can be used to implement test coverage collection, tracing, breakpoints, and etc. To be more specific, this commit: 1. adds a new `hooks` field to the `VM` (this field contains the OnExecHook function) 2. sets the default value of this hook to be a NOP function 3. adds the `VM.SetOnExecHook` method Signed-off-by: Furetur <furetur@gmail.com>
2854 lines
89 KiB
Go
2854 lines
89 KiB
Go
package vm
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import (
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"bytes"
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"encoding/binary"
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"encoding/hex"
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"errors"
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"fmt"
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"math"
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"math/big"
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"math/rand"
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"strings"
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"testing"
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"github.com/nspcc-dev/neo-go/internal/random"
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"github.com/nspcc-dev/neo-go/pkg/core/interop/interopnames"
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"github.com/nspcc-dev/neo-go/pkg/encoding/bigint"
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"github.com/nspcc-dev/neo-go/pkg/io"
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"github.com/nspcc-dev/neo-go/pkg/smartcontract/callflag"
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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/emit"
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"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
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"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func fooInteropHandler(v *VM, id uint32) error {
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if id == interopnames.ToID([]byte("foo")) {
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if !v.AddGas(1) {
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return errors.New("invalid gas amount")
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}
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v.Estack().PushVal(1)
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return nil
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}
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return errors.New("syscall not found")
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}
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func TestInteropHook(t *testing.T) {
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v := newTestVM()
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v.SyscallHandler = fooInteropHandler
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buf := io.NewBufBinWriter()
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emit.Syscall(buf.BinWriter, "foo")
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emit.Opcodes(buf.BinWriter, opcode.RET)
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v.Load(buf.Bytes())
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runVM(t, v)
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assert.Equal(t, 1, v.estack.Len())
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assert.Equal(t, big.NewInt(1), v.estack.Pop().value.Value())
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}
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func TestVM_SetPriceGetter(t *testing.T) {
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v := newTestVM()
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prog := []byte{
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byte(opcode.PUSH4), byte(opcode.PUSH2),
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byte(opcode.PUSHDATA1), 0x01, 0x01,
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byte(opcode.PUSHDATA1), 0x02, 0xCA, 0xFE,
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byte(opcode.PUSH4), byte(opcode.RET),
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}
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t.Run("no price getter", func(t *testing.T) {
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v.Load(prog)
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runVM(t, v)
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require.EqualValues(t, 0, v.GasConsumed())
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})
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v.SetPriceGetter(func(op opcode.Opcode, p []byte) int64 {
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if op == opcode.PUSH4 {
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return 1
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} else if op == opcode.PUSHDATA1 && bytes.Equal(p, []byte{0xCA, 0xFE}) {
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return 7
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}
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return 0
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})
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t.Run("with price getter", func(t *testing.T) {
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v.Load(prog)
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runVM(t, v)
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require.EqualValues(t, 9, v.GasConsumed())
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})
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t.Run("with sufficient gas limit", func(t *testing.T) {
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v.Load(prog)
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v.GasLimit = 9
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runVM(t, v)
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require.EqualValues(t, 9, v.GasConsumed())
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})
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t.Run("with small gas limit", func(t *testing.T) {
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v.Load(prog)
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v.GasLimit = 8
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checkVMFailed(t, v)
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})
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}
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func TestAddGas(t *testing.T) {
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v := newTestVM()
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v.GasLimit = 10
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require.True(t, v.AddGas(5))
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require.True(t, v.AddGas(5))
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require.False(t, v.AddGas(5))
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}
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func TestPushBytes1to75(t *testing.T) {
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buf := io.NewBufBinWriter()
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for i := 1; i <= 75; i++ {
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b := randomBytes(i)
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emit.Bytes(buf.BinWriter, b)
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vm := load(buf.Bytes())
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err := vm.Step()
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require.NoError(t, err)
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assert.Equal(t, 1, vm.estack.Len())
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elem := vm.estack.Pop()
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assert.IsType(t, &stackitem.ByteArray{}, elem.value)
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assert.IsType(t, elem.Bytes(), b)
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assert.Equal(t, 0, vm.estack.Len())
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errExec := vm.execute(nil, opcode.RET, nil)
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require.NoError(t, errExec)
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assert.Nil(t, vm.Context())
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buf.Reset()
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}
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}
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func runVM(t *testing.T, vm *VM) {
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err := vm.Run()
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require.NoError(t, err)
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assert.Equal(t, false, vm.HasFailed())
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}
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func checkVMFailed(t *testing.T, vm *VM) {
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err := vm.Run()
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require.Error(t, err)
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assert.Equal(t, true, vm.HasFailed())
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}
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func TestStackLimitPUSH1Good(t *testing.T) {
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prog := make([]byte, MaxStackSize*2)
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for i := 0; i < MaxStackSize; i++ {
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prog[i] = byte(opcode.PUSH1)
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}
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for i := MaxStackSize; i < MaxStackSize*2; i++ {
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prog[i] = byte(opcode.DROP)
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}
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v := load(prog)
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runVM(t, v)
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}
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func TestStackLimitPUSH1Bad(t *testing.T) {
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prog := make([]byte, MaxStackSize+1)
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for i := range prog {
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prog[i] = byte(opcode.PUSH1)
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}
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v := load(prog)
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checkVMFailed(t, v)
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}
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func TestPUSHINT(t *testing.T) {
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for i := byte(0); i < 5; i++ {
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op := opcode.PUSHINT8 + opcode.Opcode(i)
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t.Run(op.String(), func(t *testing.T) {
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buf := random.Bytes((8 << i) / 8)
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prog := append([]byte{byte(op)}, buf...)
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runWithArgs(t, prog, bigint.FromBytes(buf))
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})
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}
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}
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func TestPUSHNULL(t *testing.T) {
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prog := makeProgram(opcode.PUSHNULL, opcode.PUSHNULL, opcode.EQUAL)
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v := load(prog)
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require.NoError(t, v.Step())
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require.Equal(t, 1, v.estack.Len())
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runVM(t, v)
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require.True(t, v.estack.Pop().Bool())
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}
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func TestISNULL(t *testing.T) {
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prog := makeProgram(opcode.ISNULL)
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t.Run("Integer", getTestFuncForVM(prog, false, 1))
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t.Run("Null", getTestFuncForVM(prog, true, stackitem.Null{}))
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}
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func testISTYPE(t *testing.T, result bool, typ stackitem.Type, item stackitem.Item) {
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prog := []byte{byte(opcode.ISTYPE), byte(typ)}
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runWithArgs(t, prog, result, item)
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}
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func TestISTYPE(t *testing.T) {
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t.Run("Integer", func(t *testing.T) {
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testISTYPE(t, true, stackitem.IntegerT, stackitem.NewBigInteger(big.NewInt(42)))
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testISTYPE(t, false, stackitem.IntegerT, stackitem.NewByteArray([]byte{}))
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})
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t.Run("Boolean", func(t *testing.T) {
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testISTYPE(t, true, stackitem.BooleanT, stackitem.NewBool(true))
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testISTYPE(t, false, stackitem.BooleanT, stackitem.NewByteArray([]byte{}))
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})
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t.Run("ByteArray", func(t *testing.T) {
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testISTYPE(t, true, stackitem.ByteArrayT, stackitem.NewByteArray([]byte{}))
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testISTYPE(t, false, stackitem.ByteArrayT, stackitem.NewBigInteger(big.NewInt(42)))
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})
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t.Run("Array", func(t *testing.T) {
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testISTYPE(t, true, stackitem.ArrayT, stackitem.NewArray([]stackitem.Item{}))
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testISTYPE(t, false, stackitem.ArrayT, stackitem.NewByteArray([]byte{}))
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})
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t.Run("Struct", func(t *testing.T) {
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testISTYPE(t, true, stackitem.StructT, stackitem.NewStruct([]stackitem.Item{}))
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testISTYPE(t, false, stackitem.StructT, stackitem.NewByteArray([]byte{}))
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})
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t.Run("Map", func(t *testing.T) {
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testISTYPE(t, true, stackitem.MapT, stackitem.NewMap())
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testISTYPE(t, false, stackitem.MapT, stackitem.NewByteArray([]byte{}))
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})
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t.Run("Interop", func(t *testing.T) {
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testISTYPE(t, true, stackitem.InteropT, stackitem.NewInterop(42))
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testISTYPE(t, false, stackitem.InteropT, stackitem.NewByteArray([]byte{}))
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})
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}
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func testCONVERT(to stackitem.Type, item, res stackitem.Item) func(t *testing.T) {
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return func(t *testing.T) {
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prog := []byte{byte(opcode.CONVERT), byte(to)}
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runWithArgs(t, prog, res, item)
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}
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}
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func TestCONVERT(t *testing.T) {
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type convertTC struct {
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item, res stackitem.Item
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}
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arr := []stackitem.Item{
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stackitem.NewBigInteger(big.NewInt(7)),
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stackitem.NewByteArray([]byte{4, 8, 15}),
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}
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m := stackitem.NewMap()
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m.Add(stackitem.NewByteArray([]byte{1}), stackitem.NewByteArray([]byte{2}))
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getName := func(item stackitem.Item, typ stackitem.Type) string {
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return fmt.Sprintf("%s->%s", item, typ)
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}
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t.Run("->Bool", func(t *testing.T) {
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testBool := func(a, b stackitem.Item) func(t *testing.T) {
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return testCONVERT(stackitem.BooleanT, a, b)
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}
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trueCases := []stackitem.Item{
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stackitem.NewBool(true), stackitem.NewBigInteger(big.NewInt(11)), stackitem.NewByteArray([]byte{1, 2, 3}),
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stackitem.NewArray(arr), stackitem.NewArray(nil),
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stackitem.NewStruct(arr), stackitem.NewStruct(nil),
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stackitem.NewMap(), m, stackitem.NewInterop(struct{}{}),
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stackitem.NewPointer(0, []byte{}),
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}
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for i := range trueCases {
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t.Run(getName(trueCases[i], stackitem.BooleanT), testBool(trueCases[i], stackitem.NewBool(true)))
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}
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falseCases := []stackitem.Item{
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stackitem.NewBigInteger(big.NewInt(0)), stackitem.NewByteArray([]byte{0, 0}), stackitem.NewBool(false),
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}
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for i := range falseCases {
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testBool(falseCases[i], stackitem.NewBool(false))
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}
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})
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t.Run("compound/interop -> basic", func(t *testing.T) {
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types := []stackitem.Type{stackitem.IntegerT, stackitem.ByteArrayT}
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items := []stackitem.Item{stackitem.NewArray(nil), stackitem.NewStruct(nil), stackitem.NewMap(), stackitem.NewInterop(struct{}{})}
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for _, typ := range types {
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for j := range items {
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t.Run(getName(items[j], typ), testCONVERT(typ, items[j], nil))
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}
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}
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})
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t.Run("primitive -> Integer/ByteArray", func(t *testing.T) {
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n := big.NewInt(42)
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b := bigint.ToBytes(n)
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itemInt := stackitem.NewBigInteger(n)
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itemBytes := stackitem.NewByteArray(b)
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trueCases := map[stackitem.Type][]convertTC{
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stackitem.IntegerT: {
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{itemInt, itemInt},
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{itemBytes, itemInt},
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{stackitem.NewBool(true), stackitem.NewBigInteger(big.NewInt(1))},
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{stackitem.NewBool(false), stackitem.NewBigInteger(big.NewInt(0))},
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},
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stackitem.ByteArrayT: {
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{itemInt, itemBytes},
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{itemBytes, itemBytes},
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{stackitem.NewBool(true), stackitem.NewByteArray([]byte{1})},
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{stackitem.NewBool(false), stackitem.NewByteArray([]byte{0})},
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},
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}
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for typ := range trueCases {
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for _, tc := range trueCases[typ] {
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t.Run(getName(tc.item, typ), testCONVERT(typ, tc.item, tc.res))
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}
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}
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})
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t.Run("Struct<->Array", func(t *testing.T) {
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arrayItem := stackitem.NewArray(arr)
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structItem := stackitem.NewStruct(arr)
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t.Run("Array->Array", testCONVERT(stackitem.ArrayT, arrayItem, arrayItem))
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t.Run("Array->Struct", testCONVERT(stackitem.StructT, arrayItem, structItem))
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t.Run("Struct->Array", testCONVERT(stackitem.ArrayT, structItem, arrayItem))
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t.Run("Struct->Struct", testCONVERT(stackitem.StructT, structItem, structItem))
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})
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t.Run("Map->Map", testCONVERT(stackitem.MapT, m, m))
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ptr := stackitem.NewPointer(1, []byte{1})
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t.Run("Pointer->Pointer", testCONVERT(stackitem.PointerT, ptr, ptr))
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t.Run("Null->", func(t *testing.T) {
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types := []stackitem.Type{
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stackitem.BooleanT, stackitem.ByteArrayT, stackitem.IntegerT, stackitem.ArrayT, stackitem.StructT, stackitem.MapT, stackitem.InteropT, stackitem.PointerT,
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}
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for i := range types {
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t.Run(types[i].String(), testCONVERT(types[i], stackitem.Null{}, stackitem.Null{}))
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}
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})
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t.Run("->Any", func(t *testing.T) {
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items := []stackitem.Item{
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stackitem.NewBigInteger(big.NewInt(1)), stackitem.NewByteArray([]byte{1}), stackitem.NewBool(true),
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stackitem.NewArray(arr), stackitem.NewStruct(arr), m, stackitem.NewInterop(struct{}{}),
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}
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for i := range items {
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t.Run(items[i].String(), testCONVERT(stackitem.AnyT, items[i], nil))
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}
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})
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}
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// appendBigStruct returns a program which:
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// 1. pushes size Structs on stack
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// 2. packs them into a new struct
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// 3. appends them to a zero-length array
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// Resulting stack size consists of:
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// - struct (size+1)
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// - array (1) of struct (size+1)
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// which equals to size*2+3 elements in total.
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func appendBigStruct(size uint16) []opcode.Opcode {
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prog := make([]opcode.Opcode, size*2)
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for i := uint16(0); i < size; i++ {
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prog[i*2] = opcode.PUSH0
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prog[i*2+1] = opcode.NEWSTRUCT
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}
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return append(prog,
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opcode.INITSSLOT, 1,
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opcode.PUSHINT16, opcode.Opcode(size), opcode.Opcode(size>>8), // LE
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opcode.PACK, opcode.CONVERT, opcode.Opcode(stackitem.StructT),
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opcode.STSFLD0, opcode.LDSFLD0,
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opcode.DUP,
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opcode.PUSH0, opcode.NEWARRAY,
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opcode.SWAP,
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opcode.APPEND, opcode.RET)
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}
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func TestStackLimitAPPENDStructGood(t *testing.T) {
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prog := makeProgram(appendBigStruct(MaxStackSize/2 - 2)...)
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v := load(prog)
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runVM(t, v) // size = 2047 = (Max/2-2)*2+3 = Max-1
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}
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func TestStackLimitAPPENDStructBad(t *testing.T) {
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prog := makeProgram(appendBigStruct(MaxStackSize/2 - 1)...)
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v := load(prog)
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checkVMFailed(t, v) // size = 2049 = (Max/2-1)*2+3 = Max+1
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}
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func TestStackLimit(t *testing.T) {
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expected := []struct {
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inst opcode.Opcode
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size int
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}{
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{opcode.PUSH2, 2}, // 1 from INITSSLOT and 1 for integer 2
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{opcode.NEWARRAY, 4}, // array + 2 items
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{opcode.STSFLD0, 3},
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{opcode.LDSFLD0, 4},
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{opcode.NEWMAP, 5},
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{opcode.DUP, 6},
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{opcode.PUSH2, 7},
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{opcode.LDSFLD0, 8},
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{opcode.SETITEM, 7}, // -3 items and 1 new kv pair in map
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{opcode.DUP, 8},
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{opcode.PUSH2, 9},
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{opcode.LDSFLD0, 10},
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{opcode.SETITEM, 7}, // -3 items and no new elements in map
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{opcode.DUP, 8},
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{opcode.PUSH2, 9},
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{opcode.REMOVE, 5}, // as we have right after NEWMAP
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{opcode.DROP, 4}, // DROP map with no elements
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}
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prog := make([]opcode.Opcode, len(expected)+2)
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prog[0] = opcode.INITSSLOT
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prog[1] = 1
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for i := range expected {
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prog[i+2] = expected[i].inst
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}
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vm := load(makeProgram(prog...))
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require.NoError(t, vm.Step(), "failed to initialize static slot")
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for i := range expected {
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require.NoError(t, vm.Step())
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require.Equal(t, expected[i].size, int(vm.refs), "i: %d", i)
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}
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}
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func TestPushm1to16(t *testing.T) {
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var prog []byte
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for i := int(opcode.PUSHM1); i <= int(opcode.PUSH16); i++ {
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if i == 80 {
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continue // opcode layout we got here.
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}
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prog = append(prog, byte(i))
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}
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vm := load(prog)
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for i := int(opcode.PUSHM1); i <= int(opcode.PUSH16); i++ {
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err := vm.Step()
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require.NoError(t, err)
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elem := vm.estack.Pop()
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val := i - int(opcode.PUSH1) + 1
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assert.Equal(t, elem.BigInt().Int64(), int64(val))
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}
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}
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func TestPUSHDATA1(t *testing.T) {
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t.Run("Good", getTestFuncForVM([]byte{byte(opcode.PUSHDATA1), 3, 1, 2, 3}, []byte{1, 2, 3}))
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t.Run("NoN", getTestFuncForVM([]byte{byte(opcode.PUSHDATA1)}, nil))
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t.Run("BadN", getTestFuncForVM([]byte{byte(opcode.PUSHDATA1), 1}, nil))
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}
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|
|
|
func TestPUSHDATA2(t *testing.T) {
|
|
t.Run("Good", getTestFuncForVM([]byte{byte(opcode.PUSHDATA2), 3, 0, 1, 2, 3}, []byte{1, 2, 3}))
|
|
t.Run("NoN", getTestFuncForVM([]byte{byte(opcode.PUSHDATA2)}, nil))
|
|
t.Run("ShortN", getTestFuncForVM([]byte{byte(opcode.PUSHDATA2), 0}, nil))
|
|
t.Run("BadN", getTestFuncForVM([]byte{byte(opcode.PUSHDATA2), 1, 0}, nil))
|
|
}
|
|
|
|
func TestPUSHDATA4(t *testing.T) {
|
|
t.Run("Good", getTestFuncForVM([]byte{byte(opcode.PUSHDATA4), 3, 0, 0, 0, 1, 2, 3}, []byte{1, 2, 3}))
|
|
t.Run("NoN", getTestFuncForVM([]byte{byte(opcode.PUSHDATA4)}, nil))
|
|
t.Run("BadN", getTestFuncForVM([]byte{byte(opcode.PUSHDATA4), 1, 0, 0, 0}, nil))
|
|
t.Run("ShortN", getTestFuncForVM([]byte{byte(opcode.PUSHDATA4), 0, 0, 0}, nil))
|
|
}
|
|
|
|
func TestPushData4BigN(t *testing.T) {
|
|
prog := make([]byte, 1+4+stackitem.MaxSize+1)
|
|
prog[0] = byte(opcode.PUSHDATA4)
|
|
binary.LittleEndian.PutUint32(prog[1:], stackitem.MaxSize+1)
|
|
|
|
vm := load(prog)
|
|
checkVMFailed(t, vm)
|
|
}
|
|
|
|
func getTestCallFlagsFunc(syscall []byte, flags callflag.CallFlag, result any) func(t *testing.T) {
|
|
return func(t *testing.T) {
|
|
script := append([]byte{byte(opcode.SYSCALL)}, syscall...)
|
|
v := newTestVM()
|
|
v.SyscallHandler = testSyscallHandler
|
|
v.LoadScriptWithFlags(script, flags)
|
|
if result == nil {
|
|
checkVMFailed(t, v)
|
|
return
|
|
}
|
|
runVM(t, v)
|
|
require.Equal(t, result, v.PopResult())
|
|
}
|
|
}
|
|
|
|
func TestCallFlags(t *testing.T) {
|
|
noFlags := []byte{0x77, 0x77, 0x77, 0x77}
|
|
readOnly := []byte{0x66, 0x66, 0x66, 0x66}
|
|
t.Run("NoFlagsNoRequired", getTestCallFlagsFunc(noFlags, callflag.NoneFlag, new(int)))
|
|
t.Run("ProvideFlagsNoRequired", getTestCallFlagsFunc(noFlags, callflag.AllowCall, new(int)))
|
|
t.Run("NoFlagsSomeRequired", getTestCallFlagsFunc(readOnly, callflag.NoneFlag, nil))
|
|
t.Run("OnlyOneProvided", getTestCallFlagsFunc(readOnly, callflag.AllowCall, nil))
|
|
t.Run("AllFlagsProvided", getTestCallFlagsFunc(readOnly, callflag.ReadOnly, new(int)))
|
|
}
|
|
|
|
func callNTimes(n uint16) []byte {
|
|
return makeProgram(
|
|
opcode.PUSHINT16, opcode.Opcode(n), opcode.Opcode(n>>8), // little-endian
|
|
opcode.INITSSLOT, 1,
|
|
opcode.STSFLD0, opcode.LDSFLD0,
|
|
opcode.JMPIF, 0x3, opcode.RET,
|
|
opcode.LDSFLD0, opcode.DEC,
|
|
opcode.CALL, 0xF9) // -7 -> JMP to TOALTSTACK)
|
|
}
|
|
|
|
func TestInvocationLimitGood(t *testing.T) {
|
|
prog := callNTimes(MaxInvocationStackSize - 1)
|
|
v := load(prog)
|
|
runVM(t, v)
|
|
}
|
|
|
|
func TestInvocationLimitBad(t *testing.T) {
|
|
prog := callNTimes(MaxInvocationStackSize)
|
|
v := load(prog)
|
|
checkVMFailed(t, v)
|
|
}
|
|
|
|
func isLongJMP(op opcode.Opcode) bool {
|
|
return op == opcode.JMPL || op == opcode.JMPIFL || op == opcode.JMPIFNOTL ||
|
|
op == opcode.JMPEQL || op == opcode.JMPNEL ||
|
|
op == opcode.JMPGEL || op == opcode.JMPGTL ||
|
|
op == opcode.JMPLEL || op == opcode.JMPLTL
|
|
}
|
|
|
|
func getJMPProgram(op opcode.Opcode) []byte {
|
|
prog := []byte{byte(op)}
|
|
if isLongJMP(op) {
|
|
prog = append(prog, 0x07, 0x00, 0x00, 0x00)
|
|
} else {
|
|
prog = append(prog, 0x04)
|
|
}
|
|
return append(prog, byte(opcode.PUSH1), byte(opcode.RET), byte(opcode.PUSH2), byte(opcode.RET))
|
|
}
|
|
|
|
func testJMP(t *testing.T, op opcode.Opcode, res any, items ...any) {
|
|
prog := getJMPProgram(op)
|
|
v := load(prog)
|
|
for i := range items {
|
|
v.estack.PushVal(items[i])
|
|
}
|
|
if res == nil {
|
|
checkVMFailed(t, v)
|
|
return
|
|
}
|
|
runVM(t, v)
|
|
require.EqualValues(t, res, v.estack.Pop().BigInt().Int64())
|
|
}
|
|
|
|
func TestJMPs(t *testing.T) {
|
|
testCases := []struct {
|
|
name string
|
|
items []any
|
|
}{
|
|
{
|
|
name: "no condition",
|
|
},
|
|
{
|
|
name: "single item (true)",
|
|
items: []any{true},
|
|
},
|
|
{
|
|
name: "single item (false)",
|
|
items: []any{false},
|
|
},
|
|
{
|
|
name: "24 and 42",
|
|
items: []any{24, 42},
|
|
},
|
|
{
|
|
name: "42 and 24",
|
|
items: []any{42, 24},
|
|
},
|
|
{
|
|
name: "42 and 42",
|
|
items: []any{42, 42},
|
|
},
|
|
}
|
|
|
|
// 2 is true, 1 is false
|
|
results := map[opcode.Opcode][]any{
|
|
opcode.JMP: {2, 2, 2, 2, 2, 2},
|
|
opcode.JMPIF: {nil, 2, 1, 2, 2, 2},
|
|
opcode.JMPIFNOT: {nil, 1, 2, 1, 1, 1},
|
|
opcode.JMPEQ: {nil, nil, nil, 1, 1, 2},
|
|
opcode.JMPNE: {nil, nil, nil, 2, 2, 1},
|
|
opcode.JMPGE: {nil, nil, nil, 1, 2, 2},
|
|
opcode.JMPGT: {nil, nil, nil, 1, 2, 1},
|
|
opcode.JMPLE: {nil, nil, nil, 2, 1, 2},
|
|
opcode.JMPLT: {nil, nil, nil, 2, 1, 1},
|
|
}
|
|
|
|
for i, tc := range testCases {
|
|
i := i
|
|
t.Run(tc.name, func(t *testing.T) {
|
|
for op := opcode.JMP; op < opcode.JMPLEL; op++ {
|
|
resOp := op
|
|
if isLongJMP(op) {
|
|
resOp--
|
|
}
|
|
t.Run(op.String(), func(t *testing.T) {
|
|
testJMP(t, op, results[resOp][i], tc.items...)
|
|
})
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestPUSHA(t *testing.T) {
|
|
t.Run("Negative", getTestFuncForVM(makeProgram(opcode.PUSHA, 0xFF, 0xFF, 0xFF, 0xFF), nil))
|
|
t.Run("TooBig", getTestFuncForVM(makeProgram(opcode.PUSHA, 10, 0, 0, 0), nil))
|
|
t.Run("Good", func(t *testing.T) {
|
|
prog := makeProgram(opcode.NOP, opcode.PUSHA, 2, 0, 0, 0)
|
|
runWithArgs(t, prog, stackitem.NewPointer(3, prog))
|
|
})
|
|
}
|
|
|
|
func TestCALLA(t *testing.T) {
|
|
prog := makeProgram(opcode.CALLA, opcode.PUSH2, opcode.ADD, opcode.RET, opcode.PUSH3, opcode.RET)
|
|
t.Run("InvalidScript", getTestFuncForVM(prog, nil, stackitem.NewPointer(4, []byte{1})))
|
|
t.Run("Good", getTestFuncForVM(prog, 5, stackitem.NewPointer(4, prog)))
|
|
}
|
|
|
|
func TestCALL(t *testing.T) {
|
|
prog := makeProgram(
|
|
opcode.CALL, 4, opcode.ADD, opcode.RET,
|
|
opcode.CALL, 3, opcode.RET,
|
|
opcode.PUSH1, opcode.PUSH2, opcode.RET)
|
|
runWithArgs(t, prog, 3)
|
|
}
|
|
|
|
func TestNOT(t *testing.T) {
|
|
prog := makeProgram(opcode.NOT)
|
|
t.Run("Bool", getTestFuncForVM(prog, true, false))
|
|
t.Run("NonZeroInt", getTestFuncForVM(prog, false, 3))
|
|
t.Run("Array", getTestFuncForVM(prog, false, []stackitem.Item{}))
|
|
t.Run("Struct", getTestFuncForVM(prog, false, stackitem.NewStruct([]stackitem.Item{})))
|
|
t.Run("ByteArray0", getTestFuncForVM(prog, true, []byte{0, 0}))
|
|
t.Run("ByteArray1", getTestFuncForVM(prog, false, []byte{0, 1}))
|
|
t.Run("NoArgument", getTestFuncForVM(prog, nil))
|
|
t.Run("Buffer0", getTestFuncForVM(prog, false, stackitem.NewBuffer([]byte{})))
|
|
t.Run("Buffer1", getTestFuncForVM(prog, false, stackitem.NewBuffer([]byte{1})))
|
|
}
|
|
|
|
// getBigInt returns 2^a+b.
|
|
func getBigInt(a, b int64) *big.Int {
|
|
p := new(big.Int).Exp(big.NewInt(2), big.NewInt(a), nil)
|
|
p.Add(p, big.NewInt(b))
|
|
return p
|
|
}
|
|
|
|
func TestArith(t *testing.T) {
|
|
// results for 5 and 2
|
|
testCases := map[opcode.Opcode]int{
|
|
opcode.ADD: 7,
|
|
opcode.MUL: 10,
|
|
opcode.DIV: 2,
|
|
opcode.MOD: 1,
|
|
opcode.SUB: 3,
|
|
}
|
|
|
|
for op, res := range testCases {
|
|
t.Run(op.String(), getTestFuncForVM(makeProgram(op), res, 5, 2))
|
|
}
|
|
}
|
|
|
|
func TestADDBigResult(t *testing.T) {
|
|
prog := makeProgram(opcode.ADD)
|
|
runWithArgs(t, prog, nil, getBigInt(stackitem.MaxBigIntegerSizeBits-1, -1), 1) // 0x7FFF...
|
|
}
|
|
|
|
func TestMULBigResult(t *testing.T) {
|
|
prog := makeProgram(opcode.MUL)
|
|
bi := getBigInt(stackitem.MaxBigIntegerSizeBits/2+1, 0)
|
|
runWithArgs(t, prog, nil, bi, bi)
|
|
}
|
|
|
|
func TestArithNegativeArguments(t *testing.T) {
|
|
runCase := func(op opcode.Opcode, p, q, result int64) func(t *testing.T) {
|
|
return getTestFuncForVM(makeProgram(op), result, p, q)
|
|
}
|
|
|
|
t.Run("DIV", func(t *testing.T) {
|
|
t.Run("positive/positive", runCase(opcode.DIV, 5, 2, 2))
|
|
t.Run("positive/negative", runCase(opcode.DIV, 5, -2, -2))
|
|
t.Run("negative/positive", runCase(opcode.DIV, -5, 2, -2))
|
|
t.Run("negative/negative", runCase(opcode.DIV, -5, -2, 2))
|
|
})
|
|
|
|
t.Run("MOD", func(t *testing.T) {
|
|
t.Run("positive/positive", runCase(opcode.MOD, 5, 2, 1))
|
|
t.Run("positive/negative", runCase(opcode.MOD, 5, -2, 1))
|
|
t.Run("negative/positive", runCase(opcode.MOD, -5, 2, -1))
|
|
t.Run("negative/negative", runCase(opcode.MOD, -5, -2, -1))
|
|
})
|
|
|
|
t.Run("SHR", func(t *testing.T) {
|
|
t.Run("positive/positive", runCase(opcode.SHR, 5, 2, 1))
|
|
t.Run("negative/positive", runCase(opcode.SHR, -5, 2, -2))
|
|
})
|
|
|
|
t.Run("SHL", func(t *testing.T) {
|
|
t.Run("positive/positive", runCase(opcode.SHL, 5, 2, 20))
|
|
t.Run("negative/positive", runCase(opcode.SHL, -5, 2, -20))
|
|
})
|
|
}
|
|
|
|
func TestSUBBigResult(t *testing.T) {
|
|
prog := makeProgram(opcode.SUB)
|
|
bi := getBigInt(stackitem.MaxBigIntegerSizeBits-1, -1)
|
|
runWithArgs(t, prog, new(big.Int).Sub(big.NewInt(-1), bi), -1, bi)
|
|
runWithArgs(t, prog, nil, -2, bi)
|
|
}
|
|
|
|
func TestPOW(t *testing.T) {
|
|
prog := makeProgram(opcode.POW)
|
|
t.Run("good, positive", getTestFuncForVM(prog, 9, 3, 2))
|
|
t.Run("good, negative, even", getTestFuncForVM(prog, 4, -2, 2))
|
|
t.Run("good, negative, odd", getTestFuncForVM(prog, -8, -2, 3))
|
|
t.Run("zero", getTestFuncForVM(prog, 1, 3, 0))
|
|
t.Run("negative exponent", getTestFuncForVM(prog, nil, 3, -1))
|
|
t.Run("too big exponent", getTestFuncForVM(prog, nil, 1, maxSHLArg+1))
|
|
}
|
|
|
|
func TestSQRT(t *testing.T) {
|
|
prog := makeProgram(opcode.SQRT)
|
|
t.Run("good, positive", getTestFuncForVM(prog, 3, 9))
|
|
t.Run("good, round down", getTestFuncForVM(prog, 2, 8))
|
|
t.Run("one", getTestFuncForVM(prog, 1, 1))
|
|
t.Run("zero", getTestFuncForVM(prog, 0, 0))
|
|
t.Run("negative value", getTestFuncForVM(prog, nil, -1))
|
|
}
|
|
|
|
func TestMODMUL(t *testing.T) {
|
|
prog := makeProgram(opcode.MODMUL)
|
|
t.Run("bad, zero mod", getTestFuncForVM(prog, nil, 1, 2, 0))
|
|
t.Run("good, positive base", getTestFuncForVM(prog, 2, 3, 4, 5))
|
|
t.Run("good, zero base", getTestFuncForVM(prog, 0, 0, 4, 5))
|
|
t.Run("good, negative base", getTestFuncForVM(prog, 3, -3, 4, 5))
|
|
t.Run("good, positive base, negative mod", getTestFuncForVM(prog, 2, 3, 4, -5))
|
|
t.Run("good, negative base, negative mod", getTestFuncForVM(prog, 3, -3, 4, -5))
|
|
}
|
|
|
|
func TestMODPOW(t *testing.T) {
|
|
prog := makeProgram(opcode.MODPOW)
|
|
t.Run("good, positive base", getTestFuncForVM(prog, 1, 3, 4, 5))
|
|
t.Run("good, negative base", getTestFuncForVM(prog, 2, -3, 5, 5))
|
|
t.Run("good, positive base, negative mod", getTestFuncForVM(prog, 1, 3, 4, -5))
|
|
t.Run("good, negative base, negative mod", getTestFuncForVM(prog, 2, -3, 5, -5))
|
|
t.Run("bad, big negative exponent", getTestFuncForVM(prog, nil, 3, -2, 5))
|
|
t.Run("bad, zero modulus", getTestFuncForVM(prog, nil, 3, 4, 0))
|
|
|
|
t.Run("inverse compatibility", func(t *testing.T) { // Tests are taken from C# node.
|
|
t.Run("bad mod", getTestFuncForVM(prog, nil, 1, -1, 0))
|
|
t.Run("bad mod", getTestFuncForVM(prog, nil, 1, -1, 1))
|
|
t.Run("bad base", getTestFuncForVM(prog, nil, 0, -1, 0))
|
|
t.Run("bad base", getTestFuncForVM(prog, nil, 0, -1, 1))
|
|
t.Run("no inverse exists", getTestFuncForVM(prog, nil, math.MaxUint16, -1, math.MaxUint8))
|
|
t.Run("good", getTestFuncForVM(prog, 52, 19, -1, 141))
|
|
})
|
|
}
|
|
|
|
func TestSHR(t *testing.T) {
|
|
prog := makeProgram(opcode.SHR)
|
|
t.Run("Good", getTestFuncForVM(prog, 1, 4, 2))
|
|
t.Run("Zero", getTestFuncForVM(prog, []byte{0, 1}, []byte{0, 1}, 0))
|
|
t.Run("Negative", getTestFuncForVM(prog, nil, 5, -1))
|
|
t.Run("very big", getTestFuncForVM(prog, nil, 5, maxu64Plus(1)))
|
|
}
|
|
|
|
func TestSHL(t *testing.T) {
|
|
prog := makeProgram(opcode.SHL)
|
|
t.Run("Good", getTestFuncForVM(prog, 16, 4, 2))
|
|
t.Run("Zero", getTestFuncForVM(prog, []byte{0, 1}, []byte{0, 1}, 0))
|
|
t.Run("BigShift", getTestFuncForVM(prog, nil, 5, maxSHLArg+1))
|
|
t.Run("BigResult", getTestFuncForVM(prog, nil, getBigInt(stackitem.MaxBigIntegerSizeBits/2, 0), stackitem.MaxBigIntegerSizeBits/2))
|
|
t.Run("very big shift", getTestFuncForVM(prog, nil, 5, maxu64Plus(1)))
|
|
}
|
|
|
|
func TestArithNullArg(t *testing.T) {
|
|
for _, op := range []opcode.Opcode{opcode.LT, opcode.LE, opcode.GT, opcode.GE} {
|
|
prog := makeProgram(op)
|
|
t.Run(op.String(), func(t *testing.T) {
|
|
runWithArgs(t, prog, false, stackitem.Null{}, 0)
|
|
runWithArgs(t, prog, false, 0, stackitem.Null{})
|
|
runWithArgs(t, prog, nil, stackitem.NewInterop(nil), 1) // also has `.Value() == nil`
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestLT(t *testing.T) {
|
|
prog := makeProgram(opcode.LT)
|
|
runWithArgs(t, prog, false, 4, 3)
|
|
}
|
|
|
|
func TestLE(t *testing.T) {
|
|
prog := makeProgram(opcode.LE)
|
|
runWithArgs(t, prog, true, 2, 3)
|
|
}
|
|
|
|
func TestGT(t *testing.T) {
|
|
prog := makeProgram(opcode.GT)
|
|
runWithArgs(t, prog, true, 9, 3)
|
|
}
|
|
|
|
func TestGE(t *testing.T) {
|
|
prog := makeProgram(opcode.GE)
|
|
runWithArgs(t, prog, true, 3, 3)
|
|
}
|
|
|
|
func TestDepth(t *testing.T) {
|
|
prog := makeProgram(opcode.DEPTH)
|
|
vm := load(prog)
|
|
vm.estack.PushVal(1)
|
|
vm.estack.PushVal(2)
|
|
vm.estack.PushVal(3)
|
|
runVM(t, vm)
|
|
assert.Equal(t, int64(3), vm.estack.Pop().BigInt().Int64())
|
|
}
|
|
|
|
type simpleEquatable struct {
|
|
ok bool
|
|
}
|
|
|
|
var _ = stackitem.Equatable(simpleEquatable{})
|
|
|
|
func (e simpleEquatable) Equals(other stackitem.Equatable) bool {
|
|
_, ok := other.(simpleEquatable)
|
|
return ok && e.ok
|
|
}
|
|
|
|
func TestEQUALTrue(t *testing.T) {
|
|
prog := makeProgram(opcode.DUP, opcode.EQUAL)
|
|
t.Run("Array", getTestFuncForVM(prog, true, []stackitem.Item{}))
|
|
t.Run("Map", getTestFuncForVM(prog, true, stackitem.NewMap()))
|
|
t.Run("Buffer", getTestFuncForVM(prog, true, stackitem.NewBuffer([]byte{1, 2})))
|
|
t.Run("Equatable", getTestFuncForVM(prog, true, stackitem.NewInterop(simpleEquatable{ok: true})))
|
|
}
|
|
|
|
func TestEQUAL(t *testing.T) {
|
|
prog := makeProgram(opcode.EQUAL)
|
|
t.Run("NoArgs", getTestFuncForVM(prog, nil))
|
|
t.Run("OneArgument", getTestFuncForVM(prog, nil, 1))
|
|
t.Run("Integer", getTestFuncForVM(prog, true, 5, 5))
|
|
t.Run("IntegerByteArray", getTestFuncForVM(prog, false, []byte{16}, 16))
|
|
t.Run("BooleanInteger", getTestFuncForVM(prog, false, true, 1))
|
|
t.Run("Map", getTestFuncForVM(prog, false, stackitem.NewMap(), stackitem.NewMap()))
|
|
t.Run("Array", getTestFuncForVM(prog, false, []stackitem.Item{}, []stackitem.Item{}))
|
|
t.Run("Buffer", getTestFuncForVM(prog, false, stackitem.NewBuffer([]byte{42}), stackitem.NewBuffer([]byte{42})))
|
|
t.Run("EquatableFalse", getTestFuncForVM(prog, false, stackitem.NewInterop(simpleEquatable{false}), stackitem.NewInterop(simpleEquatable{})))
|
|
t.Run("EquatableTrue", getTestFuncForVM(prog, true, stackitem.NewInterop(simpleEquatable{true}), stackitem.NewInterop(simpleEquatable{})))
|
|
}
|
|
|
|
func TestEQUALByteArrayWithLimit(t *testing.T) {
|
|
prog := makeProgram(opcode.EQUAL)
|
|
t.Run("fits limit, equal", func(t *testing.T) {
|
|
args := make([]stackitem.Item, 2)
|
|
for i := range args {
|
|
args[i] = stackitem.NewStruct([]stackitem.Item{
|
|
stackitem.NewByteArray(make([]byte, stackitem.MaxByteArrayComparableSize/2)),
|
|
stackitem.NewByteArray(make([]byte, stackitem.MaxByteArrayComparableSize/2)),
|
|
})
|
|
}
|
|
getTestFuncForVM(prog, true, args[0], args[1])(t)
|
|
})
|
|
t.Run("exceeds limit", func(t *testing.T) {
|
|
args := make([]stackitem.Item, 2)
|
|
for i := range args {
|
|
args[i] = stackitem.NewStruct([]stackitem.Item{
|
|
stackitem.NewByteArray(make([]byte, stackitem.MaxByteArrayComparableSize/2+1)),
|
|
stackitem.NewByteArray(make([]byte, stackitem.MaxByteArrayComparableSize/2)),
|
|
})
|
|
}
|
|
getTestFuncForVM(prog, nil, args[0], args[1])(t) // should FAULT due to comparable limit exceeding
|
|
})
|
|
t.Run("fits limit, second elements are not equal", func(t *testing.T) {
|
|
args := make([]stackitem.Item, 2)
|
|
for i := range args {
|
|
args[i] = stackitem.NewStruct([]stackitem.Item{
|
|
stackitem.NewByteArray(make([]byte, stackitem.MaxByteArrayComparableSize-1)),
|
|
stackitem.NewBuffer(make([]byte, 1)),
|
|
})
|
|
}
|
|
getTestFuncForVM(prog, false, args[0], args[1])(t) // no limit is exceeded, but the second struct item is a Buffer.
|
|
})
|
|
t.Run("fits limit, equal", func(t *testing.T) {
|
|
args := make([]stackitem.Item, 2)
|
|
buf := stackitem.NewBuffer(make([]byte, 100500)) // takes only 1 comparable unit despite its length
|
|
for i := range args {
|
|
args[i] = stackitem.NewStruct([]stackitem.Item{
|
|
stackitem.NewByteArray(make([]byte, stackitem.MaxByteArrayComparableSize-1)),
|
|
buf,
|
|
})
|
|
}
|
|
getTestFuncForVM(prog, true, args[0], args[1])(t) // should HALT, because no limit exceeded
|
|
})
|
|
t.Run("exceeds limit, equal", func(t *testing.T) {
|
|
args := make([]stackitem.Item, 2)
|
|
buf := stackitem.NewBuffer(make([]byte, 100500)) // takes only 1 comparable unit despite its length
|
|
for i := range args {
|
|
args[i] = stackitem.NewStruct([]stackitem.Item{
|
|
stackitem.NewByteArray(make([]byte, stackitem.MaxByteArrayComparableSize-1)), // MaxByteArrayComparableSize-1 comparable units
|
|
buf, // 1 comparable unit
|
|
buf, // 1 comparable unit
|
|
})
|
|
}
|
|
getTestFuncForVM(prog, nil, args[0], args[1])(t) // should FAULT, because limit is exceeded:
|
|
})
|
|
}
|
|
|
|
func runWithArgs(t *testing.T, prog []byte, result any, args ...any) {
|
|
getTestFuncForVM(prog, result, args...)(t)
|
|
}
|
|
|
|
func getCustomTestFuncForVM(prog []byte, check func(t *testing.T, v *VM), args ...any) func(t *testing.T) {
|
|
return func(t *testing.T) {
|
|
v := load(prog)
|
|
for i := range args {
|
|
v.estack.PushVal(args[i])
|
|
}
|
|
if check == nil {
|
|
checkVMFailed(t, v)
|
|
return
|
|
}
|
|
runVM(t, v)
|
|
check(t, v)
|
|
}
|
|
}
|
|
|
|
func getTestFuncForVM(prog []byte, result any, args ...any) func(t *testing.T) {
|
|
var f func(t *testing.T, v *VM)
|
|
if result != nil {
|
|
f = func(t *testing.T, v *VM) {
|
|
require.Equal(t, 1, v.estack.Len())
|
|
require.Equal(t, stackitem.Make(result).Value(), v.estack.Pop().Value())
|
|
}
|
|
}
|
|
return getCustomTestFuncForVM(prog, f, args...)
|
|
}
|
|
|
|
func makeRETProgram(t *testing.T, argCount, localCount int) []byte {
|
|
require.True(t, argCount+localCount <= 255)
|
|
|
|
fProg := []opcode.Opcode{opcode.INITSLOT, opcode.Opcode(localCount), opcode.Opcode(argCount)}
|
|
for i := 0; i < localCount; i++ {
|
|
fProg = append(fProg, opcode.PUSH8, opcode.STLOC, opcode.Opcode(i))
|
|
}
|
|
fProg = append(fProg, opcode.RET)
|
|
|
|
offset := uint32(len(fProg) + 5)
|
|
param := make([]byte, 4)
|
|
binary.LittleEndian.PutUint32(param, offset)
|
|
|
|
ops := []opcode.Opcode{
|
|
opcode.INITSSLOT, 0x01,
|
|
opcode.PUSHA, 11, 0, 0, 0,
|
|
opcode.STSFLD0,
|
|
opcode.JMPL, opcode.Opcode(param[0]), opcode.Opcode(param[1]), opcode.Opcode(param[2]), opcode.Opcode(param[3]),
|
|
}
|
|
ops = append(ops, fProg...)
|
|
|
|
// execute func multiple times to ensure total reference count is less than max
|
|
callCount := MaxStackSize/(argCount+localCount) + 1
|
|
args := make([]opcode.Opcode, argCount)
|
|
for i := range args {
|
|
args[i] = opcode.PUSH7
|
|
}
|
|
for i := 0; i < callCount; i++ {
|
|
ops = append(ops, args...)
|
|
ops = append(ops, opcode.LDSFLD0, opcode.CALLA)
|
|
}
|
|
return makeProgram(ops...)
|
|
}
|
|
|
|
func TestRETReferenceClear(t *testing.T) {
|
|
// 42 is a canary
|
|
t.Run("Argument", getTestFuncForVM(makeRETProgram(t, 100, 0), 42, 42))
|
|
t.Run("Local", getTestFuncForVM(makeRETProgram(t, 0, 100), 42, 42))
|
|
}
|
|
|
|
func TestNOTEQUALByteArray(t *testing.T) {
|
|
prog := makeProgram(opcode.NOTEQUAL)
|
|
t.Run("True", getTestFuncForVM(prog, true, []byte{1, 2}, []byte{0, 1, 2}))
|
|
t.Run("False", getTestFuncForVM(prog, false, []byte{1, 2}, []byte{1, 2}))
|
|
}
|
|
|
|
func TestNUMEQUAL(t *testing.T) {
|
|
prog := makeProgram(opcode.NUMEQUAL)
|
|
t.Run("True", getTestFuncForVM(prog, true, 2, 2))
|
|
t.Run("False", getTestFuncForVM(prog, false, 1, 2))
|
|
}
|
|
|
|
func TestNUMNOTEQUAL(t *testing.T) {
|
|
prog := makeProgram(opcode.NUMNOTEQUAL)
|
|
t.Run("True", getTestFuncForVM(prog, true, 1, 2))
|
|
t.Run("False", getTestFuncForVM(prog, false, 2, 2))
|
|
}
|
|
|
|
func TestINC(t *testing.T) {
|
|
prog := makeProgram(opcode.INC)
|
|
runWithArgs(t, prog, 2, 1)
|
|
}
|
|
|
|
func TestINCBigResult(t *testing.T) {
|
|
prog := makeProgram(opcode.INC, opcode.INC)
|
|
vm := load(prog)
|
|
x := getBigInt(stackitem.MaxBigIntegerSizeBits-1, -2)
|
|
vm.estack.PushVal(x)
|
|
|
|
require.NoError(t, vm.Step())
|
|
require.False(t, vm.HasFailed())
|
|
require.Equal(t, 1, vm.estack.Len())
|
|
require.Equal(t, new(big.Int).Add(x, big.NewInt(1)), vm.estack.Top().BigInt())
|
|
|
|
checkVMFailed(t, vm)
|
|
}
|
|
|
|
func TestDECBigResult(t *testing.T) {
|
|
prog := makeProgram(opcode.DEC, opcode.DEC)
|
|
vm := load(prog)
|
|
x := getBigInt(stackitem.MaxBigIntegerSizeBits-1, -1)
|
|
x.Neg(x)
|
|
vm.estack.PushVal(x)
|
|
|
|
require.NoError(t, vm.Step())
|
|
require.False(t, vm.HasFailed())
|
|
require.Equal(t, 1, vm.estack.Len())
|
|
require.Equal(t, new(big.Int).Sub(x, big.NewInt(1)), vm.estack.Top().BigInt())
|
|
|
|
checkVMFailed(t, vm)
|
|
}
|
|
|
|
func TestNEWBUFFER(t *testing.T) {
|
|
prog := makeProgram(opcode.NEWBUFFER)
|
|
t.Run("Good", getTestFuncForVM(prog, stackitem.NewBuffer([]byte{0, 0, 0}), 3))
|
|
t.Run("Negative", getTestFuncForVM(prog, nil, -1))
|
|
t.Run("TooBig", getTestFuncForVM(prog, nil, stackitem.MaxSize+1))
|
|
}
|
|
|
|
func getTRYProgram(tryBlock, catchBlock, finallyBlock []byte) []byte {
|
|
hasCatch := catchBlock != nil
|
|
hasFinally := finallyBlock != nil
|
|
tryOffset := len(tryBlock) + 3 + 2 // try args + endtry args
|
|
|
|
var (
|
|
catchLen, finallyLen int
|
|
catchOffset, finallyOffset int
|
|
)
|
|
if hasCatch {
|
|
catchLen = len(catchBlock) + 2 // endtry args
|
|
catchOffset = tryOffset
|
|
}
|
|
if hasFinally {
|
|
finallyLen = len(finallyBlock) + 1 // endfinally
|
|
finallyOffset = tryOffset + catchLen
|
|
}
|
|
prog := []byte{byte(opcode.TRY), byte(catchOffset), byte(finallyOffset)}
|
|
prog = append(prog, tryBlock...)
|
|
prog = append(prog, byte(opcode.ENDTRY), byte(catchLen+finallyLen+2))
|
|
if hasCatch {
|
|
prog = append(prog, catchBlock...)
|
|
prog = append(prog, byte(opcode.ENDTRY), byte(finallyLen+2))
|
|
}
|
|
if hasFinally {
|
|
prog = append(prog, finallyBlock...)
|
|
prog = append(prog, byte(opcode.ENDFINALLY))
|
|
}
|
|
prog = append(prog, byte(opcode.RET))
|
|
return prog
|
|
}
|
|
|
|
func getTRYTestFunc(result any, tryBlock, catchBlock, finallyBlock []byte) func(t *testing.T) {
|
|
return func(t *testing.T) {
|
|
prog := getTRYProgram(tryBlock, catchBlock, finallyBlock)
|
|
runWithArgs(t, prog, result)
|
|
}
|
|
}
|
|
|
|
func TestTRY(t *testing.T) {
|
|
throw := []byte{byte(opcode.PUSH13), byte(opcode.THROW)}
|
|
push1 := []byte{byte(opcode.PUSH1)}
|
|
add5 := []byte{byte(opcode.PUSH5), byte(opcode.ADD)}
|
|
add9 := []byte{byte(opcode.PUSH9), byte(opcode.ADD)}
|
|
t.Run("NoCatch", func(t *testing.T) {
|
|
t.Run("NoFinally", func(t *testing.T) {
|
|
prog := getTRYProgram(push1, nil, nil)
|
|
vm := load(prog)
|
|
checkVMFailed(t, vm)
|
|
})
|
|
t.Run("WithFinally", getTRYTestFunc(10, push1, nil, add9))
|
|
t.Run("Throw", getTRYTestFunc(nil, throw, nil, add9))
|
|
})
|
|
t.Run("WithCatch", func(t *testing.T) {
|
|
t.Run("NoFinally", func(t *testing.T) {
|
|
t.Run("Simple", getTRYTestFunc(1, push1, add5, nil))
|
|
t.Run("Throw", getTRYTestFunc(18, throw, add5, nil))
|
|
t.Run("Abort", getTRYTestFunc(nil, []byte{byte(opcode.ABORT)}, push1, nil))
|
|
t.Run("AbortMSG", getTRYTestFunc(nil, []byte{byte(opcode.PUSH1), byte(opcode.ABORTMSG)}, push1, nil))
|
|
t.Run("ThrowInCatch", getTRYTestFunc(nil, throw, throw, nil))
|
|
})
|
|
t.Run("WithFinally", func(t *testing.T) {
|
|
t.Run("Simple", getTRYTestFunc(10, push1, add5, add9))
|
|
t.Run("Throw", getTRYTestFunc(27, throw, add5, add9))
|
|
})
|
|
})
|
|
t.Run("Nested", func(t *testing.T) {
|
|
t.Run("ReThrowInTry", func(t *testing.T) {
|
|
inner := getTRYProgram(throw, []byte{byte(opcode.THROW)}, nil)
|
|
getTRYTestFunc(27, inner, add5, add9)(t)
|
|
})
|
|
t.Run("ThrowInFinally", func(t *testing.T) {
|
|
inner := getTRYProgram(throw, add5, []byte{byte(opcode.THROW)})
|
|
getTRYTestFunc(32, inner, add5, add9)(t)
|
|
})
|
|
t.Run("TryMaxDepth", func(t *testing.T) {
|
|
loopTries := []byte{byte(opcode.INITSLOT), 0x01, 0x00,
|
|
byte(opcode.PUSH16), byte(opcode.INC), byte(opcode.STLOC0),
|
|
byte(opcode.TRY), 1, 1, // jump target
|
|
byte(opcode.LDLOC0), byte(opcode.DEC), byte(opcode.DUP),
|
|
byte(opcode.STLOC0), byte(opcode.PUSH0),
|
|
byte(opcode.JMPGT), 0xf8, byte(opcode.LDLOC0)}
|
|
vm := load(loopTries)
|
|
checkVMFailed(t, vm)
|
|
})
|
|
})
|
|
t.Run("ThrowInCall", func(t *testing.T) {
|
|
catchP := []byte{byte(opcode.CALL), 2, byte(opcode.PUSH1), byte(opcode.ADD), byte(opcode.THROW), byte(opcode.RET)}
|
|
inner := getTRYProgram(throw, catchP, []byte{byte(opcode.PUSH2)})
|
|
// add 5 to the exception, mul to the result of inner finally (2)
|
|
getTRYTestFunc(47, inner, append(add5, byte(opcode.MUL)), add9)(t)
|
|
})
|
|
t.Run("nested, in throw and catch in call", func(t *testing.T) {
|
|
catchP := []byte{byte(opcode.PUSH10), byte(opcode.ADD)}
|
|
inner := getTRYProgram(throw, catchP, []byte{byte(opcode.PUSH2)})
|
|
outer := getTRYProgram([]byte{byte(opcode.CALL), 0}, []byte{byte(opcode.PUSH3)}, []byte{byte(opcode.PUSH4)})
|
|
outer = append(outer, byte(opcode.RET))
|
|
outer[4] = byte(len(outer) - 3) // CALL argument at 3 (TRY) + 1 (CALL opcode)
|
|
outer = append(outer, inner...)
|
|
outer = append(outer, byte(opcode.RET))
|
|
|
|
v := load(outer)
|
|
runVM(t, v)
|
|
require.Equal(t, 3, v.Estack().Len())
|
|
require.Equal(t, big.NewInt(4), v.Estack().Pop().Value()) // outer FINALLY
|
|
require.Equal(t, big.NewInt(2), v.Estack().Pop().Value()) // inner FINALLY
|
|
require.Equal(t, big.NewInt(23), v.Estack().Pop().Value()) // inner THROW + CATCH
|
|
})
|
|
}
|
|
|
|
func TestMEMCPY(t *testing.T) {
|
|
prog := makeProgram(opcode.MEMCPY)
|
|
t.Run("Good", func(t *testing.T) {
|
|
buf := stackitem.NewBuffer([]byte{0, 1, 2, 3})
|
|
runWithArgs(t, prog, stackitem.NewBuffer([]byte{0, 6, 7, 3}), buf, buf, 1, []byte{4, 5, 6, 7}, 2, 2)
|
|
})
|
|
t.Run("NonZeroDstIndex", func(t *testing.T) {
|
|
buf := stackitem.NewBuffer([]byte{0, 1, 2})
|
|
runWithArgs(t, prog, stackitem.NewBuffer([]byte{0, 6, 7}), buf, buf, 1, []byte{4, 5, 6, 7}, 2, 2)
|
|
})
|
|
t.Run("NegativeSize", getTestFuncForVM(prog, nil, stackitem.NewBuffer([]byte{0, 1}), 0, []byte{2}, 0, -1))
|
|
t.Run("NegativeSrcIndex", getTestFuncForVM(prog, nil, stackitem.NewBuffer([]byte{0, 1}), 0, []byte{2}, -1, 1))
|
|
t.Run("NegativeDstIndex", getTestFuncForVM(prog, nil, stackitem.NewBuffer([]byte{0, 1}), -1, []byte{2}, 0, 1))
|
|
t.Run("BigSizeSrc", getTestFuncForVM(prog, nil, stackitem.NewBuffer([]byte{0, 1}), 0, []byte{2}, 0, 2))
|
|
t.Run("BigSizeDst", getTestFuncForVM(prog, nil, stackitem.NewBuffer([]byte{0, 1}), 0, []byte{2, 3, 4}, 0, 3))
|
|
}
|
|
|
|
func TestNEWARRAY0(t *testing.T) {
|
|
prog := makeProgram(opcode.NEWARRAY0)
|
|
runWithArgs(t, prog, []stackitem.Item{})
|
|
}
|
|
|
|
func TestNEWSTRUCT0(t *testing.T) {
|
|
prog := makeProgram(opcode.NEWSTRUCT0)
|
|
runWithArgs(t, prog, stackitem.NewStruct([]stackitem.Item{}))
|
|
}
|
|
|
|
func TestNEWARRAYArray(t *testing.T) {
|
|
prog := makeProgram(opcode.NEWARRAY)
|
|
t.Run("ByteArray", getTestFuncForVM(prog, stackitem.NewArray([]stackitem.Item{}), []byte{}))
|
|
t.Run("BadSize", getTestFuncForVM(prog, nil, MaxStackSize+1))
|
|
t.Run("Integer", getTestFuncForVM(prog, []stackitem.Item{stackitem.Null{}}, 1))
|
|
}
|
|
|
|
func testNEWARRAYIssue437(t *testing.T, i1 opcode.Opcode, t2 stackitem.Type, appended bool) {
|
|
prog := makeProgram(
|
|
opcode.PUSH2, i1,
|
|
opcode.DUP, opcode.PUSH3, opcode.APPEND,
|
|
opcode.INITSSLOT, 1,
|
|
opcode.STSFLD0, opcode.LDSFLD0, opcode.CONVERT, opcode.Opcode(t2),
|
|
opcode.DUP, opcode.PUSH4, opcode.APPEND,
|
|
opcode.LDSFLD0, opcode.PUSH5, opcode.APPEND)
|
|
|
|
arr := makeArrayOfType(4, stackitem.AnyT)
|
|
arr[2] = stackitem.Make(3)
|
|
arr[3] = stackitem.Make(4)
|
|
if appended {
|
|
arr = append(arr, stackitem.Make(5))
|
|
}
|
|
|
|
if t2 == stackitem.ArrayT {
|
|
runWithArgs(t, prog, stackitem.NewArray(arr))
|
|
} else {
|
|
runWithArgs(t, prog, stackitem.NewStruct(arr))
|
|
}
|
|
}
|
|
|
|
func TestNEWARRAYIssue437(t *testing.T) {
|
|
t.Run("Array+Array", func(t *testing.T) { testNEWARRAYIssue437(t, opcode.NEWARRAY, stackitem.ArrayT, true) })
|
|
t.Run("Struct+Struct", func(t *testing.T) { testNEWARRAYIssue437(t, opcode.NEWSTRUCT, stackitem.StructT, true) })
|
|
t.Run("Array+Struct", func(t *testing.T) { testNEWARRAYIssue437(t, opcode.NEWARRAY, stackitem.StructT, false) })
|
|
t.Run("Struct+Array", func(t *testing.T) { testNEWARRAYIssue437(t, opcode.NEWSTRUCT, stackitem.ArrayT, false) })
|
|
}
|
|
|
|
func TestNEWARRAYT(t *testing.T) {
|
|
testCases := map[stackitem.Type]stackitem.Item{
|
|
stackitem.BooleanT: stackitem.NewBool(false),
|
|
stackitem.IntegerT: stackitem.NewBigInteger(big.NewInt(0)),
|
|
stackitem.ByteArrayT: stackitem.NewByteArray([]byte{}),
|
|
stackitem.ArrayT: stackitem.Null{},
|
|
0xFF: nil,
|
|
}
|
|
for typ, item := range testCases {
|
|
prog := makeProgram(opcode.NEWARRAYT, opcode.Opcode(typ), opcode.PUSH0, opcode.PICKITEM)
|
|
t.Run(typ.String(), getTestFuncForVM(prog, item, 1))
|
|
}
|
|
}
|
|
|
|
func TestNEWSTRUCT(t *testing.T) {
|
|
prog := makeProgram(opcode.NEWSTRUCT)
|
|
t.Run("ByteArray", getTestFuncForVM(prog, stackitem.NewStruct([]stackitem.Item{}), []byte{}))
|
|
t.Run("BadSize", getTestFuncForVM(prog, nil, MaxStackSize+1))
|
|
t.Run("Integer", getTestFuncForVM(prog, stackitem.NewStruct([]stackitem.Item{stackitem.Null{}}), 1))
|
|
}
|
|
|
|
func TestAPPEND(t *testing.T) {
|
|
prog := makeProgram(opcode.DUP, opcode.PUSH5, opcode.APPEND)
|
|
arr := []stackitem.Item{stackitem.Make(5)}
|
|
t.Run("Array", getTestFuncForVM(prog, stackitem.NewArray(arr), stackitem.NewArray(nil)))
|
|
t.Run("Struct", getTestFuncForVM(prog, stackitem.NewStruct(arr), stackitem.NewStruct(nil)))
|
|
}
|
|
|
|
func TestAPPENDCloneStruct(t *testing.T) {
|
|
prog := makeProgram(opcode.DUP, opcode.PUSH0, opcode.NEWSTRUCT, opcode.INITSSLOT, 1, opcode.STSFLD0,
|
|
opcode.LDSFLD0, opcode.APPEND, opcode.LDSFLD0, opcode.PUSH1, opcode.APPEND)
|
|
arr := []stackitem.Item{stackitem.NewStruct([]stackitem.Item{})}
|
|
runWithArgs(t, prog, stackitem.NewArray(arr), stackitem.NewArray(nil))
|
|
}
|
|
|
|
func TestAPPENDBad(t *testing.T) {
|
|
prog := makeProgram(opcode.APPEND)
|
|
t.Run("no arguments", getTestFuncForVM(prog, nil))
|
|
t.Run("one argument", getTestFuncForVM(prog, nil, 1))
|
|
t.Run("wrong type", getTestFuncForVM(prog, nil, []byte{}, 1))
|
|
}
|
|
|
|
func TestAPPENDGoodSizeLimit(t *testing.T) {
|
|
prog := makeProgram(opcode.NEWARRAY, opcode.DUP, opcode.PUSH0, opcode.APPEND)
|
|
vm := load(prog)
|
|
vm.estack.PushVal(MaxStackSize - 3) // 1 for array, 1 for copy, 1 for pushed 0.
|
|
runVM(t, vm)
|
|
assert.Equal(t, 1, vm.estack.Len())
|
|
assert.Equal(t, MaxStackSize-2, len(vm.estack.Pop().Array()))
|
|
}
|
|
|
|
func TestAPPENDBadSizeLimit(t *testing.T) {
|
|
prog := makeProgram(opcode.NEWARRAY, opcode.DUP, opcode.PUSH0, opcode.APPEND)
|
|
runWithArgs(t, prog, nil, MaxStackSize)
|
|
}
|
|
|
|
func TestAPPENDRefSizeLimit(t *testing.T) {
|
|
prog := makeProgram(opcode.NEWARRAY0, opcode.DUP, opcode.DUP, opcode.APPEND, opcode.JMP, 0xfd)
|
|
runWithArgs(t, prog, nil)
|
|
}
|
|
|
|
func TestPICKITEM(t *testing.T) {
|
|
prog := makeProgram(opcode.PICKITEM)
|
|
t.Run("bad index", getTestFuncForVM(prog, nil, []stackitem.Item{}, 0))
|
|
t.Run("Array", getTestFuncForVM(prog, 2, []stackitem.Item{stackitem.Make(1), stackitem.Make(2)}, 1))
|
|
t.Run("ByteArray", getTestFuncForVM(prog, 2, []byte{1, 2}, 1))
|
|
t.Run("Buffer", getTestFuncForVM(prog, 2, stackitem.NewBuffer([]byte{1, 2}), 1))
|
|
t.Run("Exceptions", func(t *testing.T) {
|
|
tryProg := getTRYProgram(
|
|
[]byte{byte(opcode.PICKITEM), byte(opcode.RET)},
|
|
[]byte{byte(opcode.RET)}, nil)
|
|
items := []stackitem.Item{
|
|
stackitem.NewArray([]stackitem.Item{}),
|
|
stackitem.NewBuffer([]byte{}),
|
|
stackitem.NewByteArray([]byte{}),
|
|
}
|
|
for _, item := range items {
|
|
t.Run(item.String()+", negative", getTestFuncForVM(tryProg,
|
|
fmt.Sprintf("The value %d is out of range.", math.MinInt32),
|
|
item, math.MinInt32))
|
|
t.Run(item.String()+", very big index",
|
|
getTestFuncForVM(tryProg, nil, item, int64(math.MaxInt32)+1))
|
|
}
|
|
|
|
m := stackitem.NewMap()
|
|
t.Run("Map, missing key", getTestFuncForVM(tryProg, "Key not found in Map", m, 1))
|
|
})
|
|
}
|
|
|
|
func TestVMPrintOps(t *testing.T) {
|
|
w := io.NewBufBinWriter()
|
|
emit.Bytes(w.BinWriter, make([]byte, 1000))
|
|
emit.Opcodes(w.BinWriter, opcode.PUSH0)
|
|
emit.Bytes(w.BinWriter, make([]byte, 8))
|
|
|
|
buf := bytes.NewBuffer(nil)
|
|
v := New()
|
|
v.Load(w.Bytes())
|
|
v.PrintOps(buf)
|
|
|
|
ss := strings.Split(buf.String(), "\n")
|
|
require.Equal(t, 5, len(ss)) // header + 3 opcodes + trailing newline
|
|
require.True(t, len(ss[0]) < 1000)
|
|
require.True(t, len(ss[1]) > 1000)
|
|
require.True(t, len(ss[2]) < 1000)
|
|
require.True(t, len(ss[3]) < 1000)
|
|
}
|
|
|
|
func TestPICKITEMDupArray(t *testing.T) {
|
|
prog := makeProgram(opcode.DUP, opcode.PUSH0, opcode.PICKITEM, opcode.ABS)
|
|
vm := load(prog)
|
|
vm.estack.PushVal([]stackitem.Item{stackitem.Make(-1)})
|
|
runVM(t, vm)
|
|
assert.Equal(t, 2, vm.estack.Len())
|
|
assert.Equal(t, int64(1), vm.estack.Pop().BigInt().Int64())
|
|
items := vm.estack.Pop().Value().([]stackitem.Item)
|
|
assert.Equal(t, big.NewInt(-1), items[0].Value())
|
|
}
|
|
|
|
func TestPICKITEMDupMap(t *testing.T) {
|
|
prog := makeProgram(opcode.DUP, opcode.PUSHINT8, 42, opcode.PICKITEM, opcode.ABS)
|
|
vm := load(prog)
|
|
m := stackitem.NewMap()
|
|
m.Add(stackitem.Make(42), stackitem.Make(-1))
|
|
vm.estack.Push(Element{value: m})
|
|
runVM(t, vm)
|
|
assert.Equal(t, 2, vm.estack.Len())
|
|
assert.Equal(t, int64(1), vm.estack.Pop().BigInt().Int64())
|
|
items := vm.estack.Pop().Value().([]stackitem.MapElement)
|
|
assert.Equal(t, 1, len(items))
|
|
assert.Equal(t, big.NewInt(42), items[0].Key.Value())
|
|
assert.Equal(t, big.NewInt(-1), items[0].Value.Value())
|
|
}
|
|
|
|
func TestPICKITEMMap(t *testing.T) {
|
|
prog := makeProgram(opcode.PICKITEM)
|
|
m := stackitem.NewMap()
|
|
m.Add(stackitem.Make(5), stackitem.Make(3))
|
|
runWithArgs(t, prog, 3, m, 5)
|
|
}
|
|
|
|
func TestSETITEMBuffer(t *testing.T) {
|
|
prog := makeProgram(opcode.DUP, opcode.REVERSE4, opcode.SETITEM)
|
|
t.Run("Good", getTestFuncForVM(prog, stackitem.NewBuffer([]byte{0, 42, 2}), 42, 1, stackitem.NewBuffer([]byte{0, 1, 2})))
|
|
t.Run("BadValue", getTestFuncForVM(prog, nil, 256, 1, stackitem.NewBuffer([]byte{0, 1, 2})))
|
|
t.Run("Exceptions", func(t *testing.T) {
|
|
tryProg := getTRYProgram(
|
|
[]byte{byte(opcode.SETITEM), byte(opcode.PUSH12), byte(opcode.RET)},
|
|
[]byte{byte(opcode.RET)}, nil)
|
|
t.Run("negative index", getTestFuncForVM(tryProg,
|
|
fmt.Sprintf("The value %d is out of range.", math.MinInt32),
|
|
stackitem.NewBuffer([]byte{0, 1, 2}), math.MinInt32, 0))
|
|
t.Run("very big index", getTestFuncForVM(tryProg,
|
|
nil, stackitem.NewBuffer([]byte{0, 1, 2}), int64(math.MaxInt32)+1, 0))
|
|
})
|
|
}
|
|
|
|
func TestSETITEMArray(t *testing.T) {
|
|
tryProg := getTRYProgram(
|
|
[]byte{byte(opcode.SETITEM), byte(opcode.RET)},
|
|
[]byte{byte(opcode.RET)}, nil)
|
|
t.Run("Good", func(t *testing.T) {
|
|
arr := stackitem.NewArray([]stackitem.Item{stackitem.Make(12), stackitem.Make(2)})
|
|
expected := stackitem.NewArray([]stackitem.Item{stackitem.Make(12), stackitem.Make(42)})
|
|
runWithArgs(t, tryProg, expected, arr, arr, 1, 42)
|
|
})
|
|
t.Run("negative index", getTestFuncForVM(tryProg,
|
|
fmt.Sprintf("The value %d is out of range.", math.MinInt32),
|
|
[]stackitem.Item{}, math.MinInt32, 42))
|
|
t.Run("very big index", getTestFuncForVM(tryProg,
|
|
nil, []stackitem.Item{}, int64(math.MaxInt32)+1, 0))
|
|
}
|
|
|
|
func TestSETITEMMap(t *testing.T) {
|
|
prog := makeProgram(opcode.SETITEM, opcode.PICKITEM)
|
|
m := stackitem.NewMap()
|
|
m.Add(stackitem.Make(5), stackitem.Make(3))
|
|
runWithArgs(t, prog, []byte{0, 1}, m, 5, m, 5, []byte{0, 1})
|
|
|
|
t.Run("big key", func(t *testing.T) {
|
|
m := stackitem.NewMap()
|
|
key := make([]byte, stackitem.MaxKeySize)
|
|
for i := range key {
|
|
key[i] = 0x0F
|
|
}
|
|
m.Add(stackitem.NewByteArray(key), stackitem.Make(3))
|
|
runWithArgs(t, prog, "value", m, key, m, key, "value")
|
|
})
|
|
}
|
|
|
|
func TestSETITEMBigMapBad(t *testing.T) {
|
|
prog := makeProgram(opcode.SETITEM)
|
|
m := stackitem.NewMap()
|
|
for i := 0; i < MaxStackSize; i++ {
|
|
m.Add(stackitem.Make(i), stackitem.Make(i))
|
|
}
|
|
|
|
runWithArgs(t, prog, nil, m, m, MaxStackSize, 0)
|
|
}
|
|
|
|
// This test checks is SETITEM properly updates reference counter.
|
|
// 1. Create 2 arrays of size MaxStackSize/2 - 3.
|
|
// 2. SETITEM each of them to a map.
|
|
// 3. Replace each of them with a scalar value.
|
|
func TestSETITEMMapStackLimit(t *testing.T) {
|
|
size := MaxStackSize/2 - 4
|
|
m := stackitem.NewMap()
|
|
m.Add(stackitem.NewBigInteger(big.NewInt(1)), stackitem.NewArray(makeArrayOfType(size, stackitem.BooleanT)))
|
|
m.Add(stackitem.NewBigInteger(big.NewInt(2)), stackitem.NewArray(makeArrayOfType(size, stackitem.BooleanT)))
|
|
|
|
prog := makeProgram(
|
|
opcode.DUP, opcode.PUSH1, opcode.PUSH1, opcode.SETITEM,
|
|
opcode.DUP, opcode.PUSH2, opcode.PUSH2, opcode.SETITEM,
|
|
opcode.DUP, opcode.PUSH3, opcode.PUSH3, opcode.SETITEM,
|
|
opcode.DUP, opcode.PUSH4, opcode.PUSH4, opcode.SETITEM)
|
|
v := load(prog)
|
|
v.estack.PushVal(m)
|
|
runVM(t, v)
|
|
}
|
|
|
|
func TestSETITEMBigMapGood(t *testing.T) {
|
|
prog := makeProgram(opcode.SETITEM)
|
|
vm := load(prog)
|
|
|
|
m := stackitem.NewMap()
|
|
for i := 0; i < MaxStackSize-3; i++ {
|
|
m.Add(stackitem.Make(i), stackitem.Make(i))
|
|
}
|
|
vm.estack.Push(Element{value: m})
|
|
vm.estack.PushVal(0)
|
|
vm.estack.PushVal(0)
|
|
|
|
runVM(t, vm)
|
|
}
|
|
|
|
func TestSIZE(t *testing.T) {
|
|
prog := makeProgram(opcode.SIZE)
|
|
t.Run("NoArgument", getTestFuncForVM(prog, nil))
|
|
t.Run("ByteArray", getTestFuncForVM(prog, 2, []byte{0, 1}))
|
|
t.Run("Buffer", getTestFuncForVM(prog, 2, stackitem.NewBuffer([]byte{0, 1})))
|
|
t.Run("Bool", getTestFuncForVM(prog, 1, false))
|
|
t.Run("Array", getTestFuncForVM(prog, 2, []stackitem.Item{stackitem.Make(1), stackitem.Make([]byte{})}))
|
|
t.Run("Map", func(t *testing.T) {
|
|
m := stackitem.NewMap()
|
|
m.Add(stackitem.Make(5), stackitem.Make(6))
|
|
m.Add(stackitem.Make([]byte{0, 1}), stackitem.Make(6))
|
|
runWithArgs(t, prog, 2, m)
|
|
})
|
|
}
|
|
|
|
func TestKEYSMap(t *testing.T) {
|
|
prog := makeProgram(opcode.KEYS)
|
|
vm := load(prog)
|
|
|
|
m := stackitem.NewMap()
|
|
m.Add(stackitem.Make(5), stackitem.Make(6))
|
|
m.Add(stackitem.Make([]byte{0, 1}), stackitem.Make(6))
|
|
vm.estack.Push(Element{value: m})
|
|
|
|
runVM(t, vm)
|
|
assert.Equal(t, 1, vm.estack.Len())
|
|
|
|
top := vm.estack.Pop().value.(*stackitem.Array)
|
|
assert.Equal(t, 2, len(top.Value().([]stackitem.Item)))
|
|
assert.Contains(t, top.Value().([]stackitem.Item), stackitem.Make(5))
|
|
assert.Contains(t, top.Value().([]stackitem.Item), stackitem.Make([]byte{0, 1}))
|
|
}
|
|
|
|
func TestKEYS(t *testing.T) {
|
|
prog := makeProgram(opcode.KEYS)
|
|
t.Run("NoArgument", getTestFuncForVM(prog, nil))
|
|
t.Run("WrongType", getTestFuncForVM(prog, nil, []stackitem.Item{}))
|
|
}
|
|
|
|
func TestTry_ENDFINALLY_before_ENDTRY(t *testing.T) {
|
|
prog := makeProgram(opcode.TRY, 0, 3, opcode.ENDFINALLY)
|
|
require.NoError(t, IsScriptCorrect(prog, nil))
|
|
|
|
v := load(prog)
|
|
|
|
var err error
|
|
require.NotPanics(t, func() { err = v.Run() })
|
|
require.Error(t, err)
|
|
}
|
|
|
|
func TestVALUESMap(t *testing.T) {
|
|
prog := makeProgram(opcode.VALUES)
|
|
vm := load(prog)
|
|
|
|
m := stackitem.NewMap()
|
|
m.Add(stackitem.Make(5), stackitem.Make([]byte{2, 3}))
|
|
m.Add(stackitem.Make([]byte{0, 1}), stackitem.Make([]stackitem.Item{}))
|
|
vm.estack.Push(Element{value: m})
|
|
|
|
runVM(t, vm)
|
|
assert.Equal(t, 1, vm.estack.Len())
|
|
|
|
top := vm.estack.Pop().value.(*stackitem.Array)
|
|
assert.Equal(t, 2, len(top.Value().([]stackitem.Item)))
|
|
assert.Contains(t, top.Value().([]stackitem.Item), stackitem.Make([]byte{2, 3}))
|
|
assert.Contains(t, top.Value().([]stackitem.Item), stackitem.Make([]stackitem.Item{}))
|
|
}
|
|
|
|
func TestVALUES(t *testing.T) {
|
|
prog := makeProgram(opcode.VALUES)
|
|
t.Run("NoArgument", getTestFuncForVM(prog, nil))
|
|
t.Run("WrongType", getTestFuncForVM(prog, nil, 5))
|
|
t.Run("Array", getTestFuncForVM(prog, []int{4}, []int{4}))
|
|
}
|
|
|
|
func TestHASKEY(t *testing.T) {
|
|
prog := makeProgram(opcode.HASKEY)
|
|
t.Run("NoArgument", getTestFuncForVM(prog, nil))
|
|
t.Run("OneArgument", getTestFuncForVM(prog, nil, 1))
|
|
t.Run("WrongKeyType", getTestFuncForVM(prog, nil, []stackitem.Item{}, []stackitem.Item{}))
|
|
t.Run("WrongCollectionType", getTestFuncForVM(prog, nil, 1, 2))
|
|
|
|
arr := makeArrayOfType(5, stackitem.BooleanT)
|
|
t.Run("Array", func(t *testing.T) {
|
|
t.Run("True", getTestFuncForVM(prog, true, stackitem.NewArray(arr), 4))
|
|
t.Run("too big", getTestFuncForVM(prog, nil, stackitem.NewArray(arr), maxu64Plus(4)))
|
|
t.Run("False", getTestFuncForVM(prog, false, stackitem.NewArray(arr), 5))
|
|
})
|
|
t.Run("Struct", func(t *testing.T) {
|
|
t.Run("True", getTestFuncForVM(prog, true, stackitem.NewStruct(arr), 4))
|
|
t.Run("too big", getTestFuncForVM(prog, nil, stackitem.NewStruct(arr), maxu64Plus(4)))
|
|
t.Run("False", getTestFuncForVM(prog, false, stackitem.NewStruct(arr), 5))
|
|
})
|
|
|
|
t.Run("Buffer", func(t *testing.T) {
|
|
t.Run("True", getTestFuncForVM(prog, true, stackitem.NewBuffer([]byte{5, 5, 5}), 2))
|
|
t.Run("too big", getTestFuncForVM(prog, nil, stackitem.NewBuffer([]byte{5, 5, 5}), maxu64Plus(2)))
|
|
t.Run("False", getTestFuncForVM(prog, false, stackitem.NewBuffer([]byte{5, 5, 5}), 3))
|
|
t.Run("Negative", getTestFuncForVM(prog, nil, stackitem.NewBuffer([]byte{5, 5, 5}), -1))
|
|
})
|
|
|
|
t.Run("ByteArray", func(t *testing.T) {
|
|
t.Run("True", getTestFuncForVM(prog, true, stackitem.NewByteArray([]byte{5, 5, 5}), 2))
|
|
t.Run("too big", getTestFuncForVM(prog, nil, stackitem.NewByteArray([]byte{5, 5, 5}), maxu64Plus(2)))
|
|
t.Run("False", getTestFuncForVM(prog, false, stackitem.NewByteArray([]byte{5, 5, 5}), 3))
|
|
t.Run("Negative", getTestFuncForVM(prog, nil, stackitem.NewByteArray([]byte{5, 5, 5}), -1))
|
|
})
|
|
}
|
|
|
|
func TestHASKEYMap(t *testing.T) {
|
|
prog := makeProgram(opcode.HASKEY)
|
|
m := stackitem.NewMap()
|
|
m.Add(stackitem.Make(5), stackitem.Make(6))
|
|
t.Run("True", getTestFuncForVM(prog, true, m, 5))
|
|
t.Run("False", getTestFuncForVM(prog, false, m, 6))
|
|
}
|
|
|
|
func TestHASKEYBigKey(t *testing.T) {
|
|
v := newTestVM()
|
|
|
|
buf := io.NewBufBinWriter()
|
|
emit.Int(buf.BinWriter, 1024*1024)
|
|
emit.Opcodes(buf.BinWriter, opcode.NEWBUFFER, opcode.NEWMAP)
|
|
emit.Int(buf.BinWriter, 64)
|
|
emit.Opcodes(buf.BinWriter, opcode.NEWBUFFER)
|
|
emit.Opcodes(buf.BinWriter, opcode.INITSLOT, opcode.Opcode(0), opcode.Opcode(3))
|
|
|
|
emit.Opcodes(buf.BinWriter, opcode.LDARG1, opcode.LDARG0, opcode.CONVERT, opcode.Opcode(stackitem.ByteArrayT))
|
|
emit.Opcodes(buf.BinWriter, opcode.LDARG0, opcode.SETITEM, opcode.LDARG1, opcode.LDARG2)
|
|
emit.Opcodes(buf.BinWriter, opcode.CONVERT, opcode.Opcode(stackitem.ByteArrayT))
|
|
emit.Opcodes(buf.BinWriter, opcode.HASKEY)
|
|
|
|
emit.Opcodes(buf.BinWriter, opcode.JMP, opcode.Opcode(0xFB)) // -5
|
|
v.Load(buf.Bytes())
|
|
checkVMFailed(t, v)
|
|
}
|
|
|
|
func TestSIGN(t *testing.T) {
|
|
prog := makeProgram(opcode.SIGN)
|
|
t.Run("NoArgument", getTestFuncForVM(prog, nil))
|
|
t.Run("WrongType", getTestFuncForVM(prog, nil, []stackitem.Item{}))
|
|
t.Run("Bool", getTestFuncForVM(prog, 0, false))
|
|
t.Run("PositiveInt", getTestFuncForVM(prog, 1, 2))
|
|
t.Run("NegativeInt", getTestFuncForVM(prog, -1, -1))
|
|
t.Run("Zero", getTestFuncForVM(prog, 0, 0))
|
|
t.Run("ByteArray", getTestFuncForVM(prog, 1, []byte{0, 1}))
|
|
}
|
|
|
|
func TestSimpleCall(t *testing.T) {
|
|
buf := io.NewBufBinWriter()
|
|
w := buf.BinWriter
|
|
emit.Opcodes(w, opcode.PUSH2)
|
|
emit.Instruction(w, opcode.CALL, []byte{03})
|
|
emit.Opcodes(w, opcode.RET)
|
|
emit.Opcodes(w, opcode.PUSH10)
|
|
emit.Opcodes(w, opcode.ADD)
|
|
emit.Opcodes(w, opcode.RET)
|
|
|
|
result := 12
|
|
vm := load(buf.Bytes())
|
|
runVM(t, vm)
|
|
assert.Equal(t, result, int(vm.estack.Pop().BigInt().Int64()))
|
|
}
|
|
|
|
func TestNZ(t *testing.T) {
|
|
prog := makeProgram(opcode.NZ)
|
|
t.Run("True", getTestFuncForVM(prog, true, 1))
|
|
t.Run("False", getTestFuncForVM(prog, false, 0))
|
|
}
|
|
|
|
func TestPICK(t *testing.T) {
|
|
prog := makeProgram(opcode.PICK)
|
|
t.Run("NoItem", getTestFuncForVM(prog, nil, 1))
|
|
t.Run("Negative", getTestFuncForVM(prog, nil, -1))
|
|
t.Run("very big", getTestFuncForVM(prog, nil, 1, 2, 3, maxu64Plus(1)))
|
|
}
|
|
|
|
func TestPICKgood(t *testing.T) {
|
|
prog := makeProgram(opcode.PICK)
|
|
result := 2
|
|
vm := load(prog)
|
|
vm.estack.PushVal(0)
|
|
vm.estack.PushVal(1)
|
|
vm.estack.PushVal(result)
|
|
vm.estack.PushVal(3)
|
|
vm.estack.PushVal(4)
|
|
vm.estack.PushVal(5)
|
|
vm.estack.PushVal(3)
|
|
runVM(t, vm)
|
|
assert.Equal(t, int64(result), vm.estack.Pop().BigInt().Int64())
|
|
}
|
|
|
|
func TestPICKDup(t *testing.T) {
|
|
prog := makeProgram(opcode.PUSHM1, opcode.PUSH0,
|
|
opcode.PUSH1,
|
|
opcode.PUSH2,
|
|
opcode.PICK,
|
|
opcode.ABS)
|
|
vm := load(prog)
|
|
runVM(t, vm)
|
|
assert.Equal(t, 4, vm.estack.Len())
|
|
assert.Equal(t, int64(1), vm.estack.Pop().BigInt().Int64())
|
|
assert.Equal(t, int64(1), vm.estack.Pop().BigInt().Int64())
|
|
assert.Equal(t, int64(0), vm.estack.Pop().BigInt().Int64())
|
|
assert.Equal(t, int64(-1), vm.estack.Pop().BigInt().Int64())
|
|
}
|
|
|
|
func TestROTBad(t *testing.T) {
|
|
prog := makeProgram(opcode.ROT)
|
|
runWithArgs(t, prog, nil, 1, 2)
|
|
}
|
|
|
|
func TestROTGood(t *testing.T) {
|
|
prog := makeProgram(opcode.ROT)
|
|
vm := load(prog)
|
|
vm.estack.PushVal(1)
|
|
vm.estack.PushVal(2)
|
|
vm.estack.PushVal(3)
|
|
runVM(t, vm)
|
|
assert.Equal(t, 3, vm.estack.Len())
|
|
assert.Equal(t, stackitem.Make(1), vm.estack.Pop().value)
|
|
assert.Equal(t, stackitem.Make(3), vm.estack.Pop().value)
|
|
assert.Equal(t, stackitem.Make(2), vm.estack.Pop().value)
|
|
}
|
|
|
|
func TestROLLBad1(t *testing.T) {
|
|
prog := makeProgram(opcode.ROLL)
|
|
runWithArgs(t, prog, nil, 1, -1)
|
|
}
|
|
|
|
func TestROLLBad2(t *testing.T) {
|
|
prog := makeProgram(opcode.ROLL)
|
|
runWithArgs(t, prog, nil, 1, 2, 3, 3)
|
|
}
|
|
|
|
func maxu64Plus(x int64) *big.Int {
|
|
bi := new(big.Int).SetUint64(math.MaxUint64)
|
|
bi.Add(bi, big.NewInt(2))
|
|
return bi
|
|
}
|
|
|
|
func TestROLLBad3(t *testing.T) {
|
|
prog := makeProgram(opcode.ROLL)
|
|
runWithArgs(t, prog, nil, 1, 2, 3, maxu64Plus(2))
|
|
}
|
|
|
|
func TestROLLGood(t *testing.T) {
|
|
prog := makeProgram(opcode.ROLL)
|
|
vm := load(prog)
|
|
vm.estack.PushVal(1)
|
|
vm.estack.PushVal(2)
|
|
vm.estack.PushVal(3)
|
|
vm.estack.PushVal(4)
|
|
vm.estack.PushVal(1)
|
|
runVM(t, vm)
|
|
assert.Equal(t, 4, vm.estack.Len())
|
|
assert.Equal(t, stackitem.Make(3), vm.estack.Pop().value)
|
|
assert.Equal(t, stackitem.Make(4), vm.estack.Pop().value)
|
|
assert.Equal(t, stackitem.Make(2), vm.estack.Pop().value)
|
|
assert.Equal(t, stackitem.Make(1), vm.estack.Pop().value)
|
|
}
|
|
|
|
func getCheckEStackFunc(items ...any) func(t *testing.T, v *VM) {
|
|
return func(t *testing.T, v *VM) {
|
|
require.Equal(t, len(items), v.estack.Len())
|
|
for i := 0; i < len(items); i++ {
|
|
assert.Equal(t, stackitem.Make(items[i]), v.estack.Peek(i).Item())
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestREVERSE3(t *testing.T) {
|
|
prog := makeProgram(opcode.REVERSE3)
|
|
t.Run("SmallStack", getTestFuncForVM(prog, nil, 1, 2))
|
|
t.Run("Good", getCustomTestFuncForVM(prog, getCheckEStackFunc(1, 2, 3), 1, 2, 3))
|
|
}
|
|
|
|
func TestREVERSE4(t *testing.T) {
|
|
prog := makeProgram(opcode.REVERSE4)
|
|
t.Run("SmallStack", getTestFuncForVM(prog, nil, 1, 2, 3))
|
|
t.Run("Good", getCustomTestFuncForVM(prog, getCheckEStackFunc(1, 2, 3, 4), 1, 2, 3, 4))
|
|
}
|
|
|
|
func TestREVERSEN(t *testing.T) {
|
|
prog := makeProgram(opcode.REVERSEN)
|
|
t.Run("NoArgument", getTestFuncForVM(prog, nil))
|
|
t.Run("SmallStack", getTestFuncForVM(prog, nil, 1, 2, 3))
|
|
t.Run("NegativeArgument", getTestFuncForVM(prog, nil, 1, 2, -1))
|
|
t.Run("Zero", getCustomTestFuncForVM(prog, getCheckEStackFunc(3, 2, 1), 1, 2, 3, 0))
|
|
t.Run("OneItem", getCustomTestFuncForVM(prog, getCheckEStackFunc(42), 42, 1))
|
|
t.Run("Good", getCustomTestFuncForVM(prog, getCheckEStackFunc(1, 2, 3, 4, 5), 1, 2, 3, 4, 5, 5))
|
|
t.Run("VeryBigNumber", getCustomTestFuncForVM(prog, nil, 1, 2, maxu64Plus(2)))
|
|
}
|
|
|
|
func TestTUCKbadNoitems(t *testing.T) {
|
|
prog := makeProgram(opcode.TUCK)
|
|
t.Run("NoArgument", getTestFuncForVM(prog, nil))
|
|
t.Run("NoItem", getTestFuncForVM(prog, nil, 1))
|
|
}
|
|
|
|
func TestTUCKgood(t *testing.T) {
|
|
prog := makeProgram(opcode.TUCK)
|
|
vm := load(prog)
|
|
vm.estack.PushVal(42)
|
|
vm.estack.PushVal(34)
|
|
runVM(t, vm)
|
|
assert.Equal(t, int64(34), vm.estack.Peek(0).BigInt().Int64())
|
|
assert.Equal(t, int64(42), vm.estack.Peek(1).BigInt().Int64())
|
|
assert.Equal(t, int64(34), vm.estack.Peek(2).BigInt().Int64())
|
|
}
|
|
|
|
func TestTUCKgood2(t *testing.T) {
|
|
prog := makeProgram(opcode.TUCK)
|
|
vm := load(prog)
|
|
vm.estack.PushVal(11)
|
|
vm.estack.PushVal(42)
|
|
vm.estack.PushVal(34)
|
|
runVM(t, vm)
|
|
assert.Equal(t, int64(34), vm.estack.Peek(0).BigInt().Int64())
|
|
assert.Equal(t, int64(42), vm.estack.Peek(1).BigInt().Int64())
|
|
assert.Equal(t, int64(34), vm.estack.Peek(2).BigInt().Int64())
|
|
assert.Equal(t, int64(11), vm.estack.Peek(3).BigInt().Int64())
|
|
}
|
|
|
|
func TestOVER(t *testing.T) {
|
|
prog := makeProgram(opcode.OVER)
|
|
t.Run("NoArgument", getTestFuncForVM(prog, nil))
|
|
t.Run("NoItem", getTestFuncForVM(prog, nil, 1))
|
|
}
|
|
|
|
func TestOVERgood(t *testing.T) {
|
|
prog := makeProgram(opcode.OVER)
|
|
vm := load(prog)
|
|
vm.estack.PushVal(42)
|
|
vm.estack.PushVal(34)
|
|
runVM(t, vm)
|
|
assert.Equal(t, int64(42), vm.estack.Peek(0).BigInt().Int64())
|
|
assert.Equal(t, int64(34), vm.estack.Peek(1).BigInt().Int64())
|
|
assert.Equal(t, int64(42), vm.estack.Peek(2).BigInt().Int64())
|
|
assert.Equal(t, 3, vm.estack.Len())
|
|
}
|
|
|
|
func TestOVERDup(t *testing.T) {
|
|
prog := makeProgram(opcode.PUSHDATA1, 2, 1, 0,
|
|
opcode.PUSH1,
|
|
opcode.OVER,
|
|
opcode.PUSH1,
|
|
opcode.LEFT,
|
|
opcode.PUSHDATA1, 1, 2,
|
|
opcode.CAT)
|
|
vm := load(prog)
|
|
runVM(t, vm)
|
|
assert.Equal(t, 3, vm.estack.Len())
|
|
assert.Equal(t, []byte{0x01, 0x02}, vm.estack.Pop().Bytes())
|
|
assert.Equal(t, int64(1), vm.estack.Pop().BigInt().Int64())
|
|
assert.Equal(t, []byte{0x01, 0x00}, vm.estack.Pop().Bytes())
|
|
}
|
|
|
|
func TestNIPBadNoItem(t *testing.T) {
|
|
prog := makeProgram(opcode.NIP)
|
|
runWithArgs(t, prog, nil, 1)
|
|
}
|
|
|
|
func TestNIPGood(t *testing.T) {
|
|
prog := makeProgram(opcode.NIP)
|
|
runWithArgs(t, prog, 2, 1, 2)
|
|
}
|
|
|
|
func TestDROPBadNoItem(t *testing.T) {
|
|
prog := makeProgram(opcode.DROP)
|
|
runWithArgs(t, prog, nil)
|
|
}
|
|
|
|
func TestDROPGood(t *testing.T) {
|
|
prog := makeProgram(opcode.DROP)
|
|
vm := load(prog)
|
|
vm.estack.PushVal(1)
|
|
runVM(t, vm)
|
|
assert.Equal(t, 0, vm.estack.Len())
|
|
}
|
|
|
|
func TestXDROP(t *testing.T) {
|
|
prog := makeProgram(opcode.XDROP)
|
|
t.Run("NoArgument", getTestFuncForVM(prog, nil))
|
|
t.Run("NoN", getTestFuncForVM(prog, nil, 1, 2))
|
|
t.Run("very big argument", getTestFuncForVM(prog, nil, 1, 2, maxu64Plus(1)))
|
|
t.Run("Negative", getTestFuncForVM(prog, nil, 1, -1))
|
|
}
|
|
|
|
func TestXDROPgood(t *testing.T) {
|
|
prog := makeProgram(opcode.XDROP)
|
|
vm := load(prog)
|
|
vm.estack.PushVal(0)
|
|
vm.estack.PushVal(1)
|
|
vm.estack.PushVal(2)
|
|
vm.estack.PushVal(2)
|
|
runVM(t, vm)
|
|
assert.Equal(t, 2, vm.estack.Len())
|
|
assert.Equal(t, int64(2), vm.estack.Peek(0).BigInt().Int64())
|
|
assert.Equal(t, int64(1), vm.estack.Peek(1).BigInt().Int64())
|
|
}
|
|
|
|
func TestCLEAR(t *testing.T) {
|
|
prog := makeProgram(opcode.CLEAR)
|
|
v := load(prog)
|
|
v.estack.PushVal(123)
|
|
require.Equal(t, 1, v.estack.Len())
|
|
require.NoError(t, v.Run())
|
|
require.Equal(t, 0, v.estack.Len())
|
|
}
|
|
|
|
func TestINVERTbadNoitem(t *testing.T) {
|
|
prog := makeProgram(opcode.INVERT)
|
|
runWithArgs(t, prog, nil)
|
|
}
|
|
|
|
func TestINVERTgood1(t *testing.T) {
|
|
prog := makeProgram(opcode.INVERT)
|
|
runWithArgs(t, prog, -1, 0)
|
|
}
|
|
|
|
func TestINVERTgood2(t *testing.T) {
|
|
prog := makeProgram(opcode.INVERT)
|
|
vm := load(prog)
|
|
vm.estack.PushVal(-1)
|
|
runVM(t, vm)
|
|
assert.Equal(t, int64(0), vm.estack.Peek(0).BigInt().Int64())
|
|
}
|
|
|
|
func TestINVERTgood3(t *testing.T) {
|
|
prog := makeProgram(opcode.INVERT)
|
|
vm := load(prog)
|
|
vm.estack.PushVal(0x69)
|
|
runVM(t, vm)
|
|
assert.Equal(t, int64(-0x6A), vm.estack.Peek(0).BigInt().Int64())
|
|
}
|
|
|
|
func TestINVERTWithConversion1(t *testing.T) {
|
|
prog := makeProgram(opcode.PUSHDATA2, 0, 0, opcode.INVERT)
|
|
vm := load(prog)
|
|
runVM(t, vm)
|
|
assert.Equal(t, int64(-1), vm.estack.Peek(0).BigInt().Int64())
|
|
}
|
|
|
|
func TestINVERTWithConversion2(t *testing.T) {
|
|
prog := makeProgram(opcode.PUSH0, opcode.PUSH1, opcode.NUMEQUAL, opcode.INVERT)
|
|
vm := load(prog)
|
|
runVM(t, vm)
|
|
assert.Equal(t, int64(-1), vm.estack.Peek(0).BigInt().Int64())
|
|
}
|
|
|
|
func TestCAT(t *testing.T) {
|
|
prog := makeProgram(opcode.CAT)
|
|
t.Run("NoArgument", getTestFuncForVM(prog, nil))
|
|
t.Run("OneArgument", getTestFuncForVM(prog, nil, []byte("abc")))
|
|
t.Run("BigItem", func(t *testing.T) {
|
|
arg := make([]byte, stackitem.MaxSize/2+1)
|
|
runWithArgs(t, prog, nil, arg, arg)
|
|
})
|
|
t.Run("Good", getTestFuncForVM(prog, stackitem.NewBuffer([]byte("abcdef")), []byte("abc"), []byte("def")))
|
|
t.Run("Int0ByteArray", getTestFuncForVM(prog, stackitem.NewBuffer([]byte{}), 0, []byte{}))
|
|
t.Run("ByteArrayInt1", getTestFuncForVM(prog, stackitem.NewBuffer([]byte{1}), []byte{}, 1))
|
|
}
|
|
|
|
func TestSUBSTR(t *testing.T) {
|
|
prog := makeProgram(opcode.SUBSTR)
|
|
t.Run("NoArgument", getTestFuncForVM(prog, nil))
|
|
t.Run("OneArgument", getTestFuncForVM(prog, nil, 1))
|
|
t.Run("TwoArguments", getTestFuncForVM(prog, nil, 0, 2))
|
|
t.Run("Good", getTestFuncForVM(prog, stackitem.NewBuffer([]byte("bc")), []byte("abcdef"), 1, 2))
|
|
t.Run("BadOffset", getTestFuncForVM(prog, nil, []byte("abcdef"), 7, 1))
|
|
t.Run("very big offset", getTestFuncForVM(prog, nil, []byte("abcdef"), maxu64Plus(1), 1))
|
|
t.Run("BigLen", getTestFuncForVM(prog, nil, []byte("abcdef"), 1, 6))
|
|
t.Run("very big len", getTestFuncForVM(prog, nil, []byte("abcdef"), 1, maxu64Plus(1)))
|
|
t.Run("NegativeOffset", getTestFuncForVM(prog, nil, []byte("abcdef"), -1, 3))
|
|
t.Run("NegativeLen", getTestFuncForVM(prog, nil, []byte("abcdef"), 3, -1))
|
|
}
|
|
|
|
func TestSUBSTRBad387(t *testing.T) {
|
|
prog := makeProgram(opcode.SUBSTR)
|
|
vm := load(prog)
|
|
b := make([]byte, 6, 20)
|
|
copy(b, "abcdef")
|
|
vm.estack.PushVal(b)
|
|
vm.estack.PushVal(1)
|
|
vm.estack.PushVal(6)
|
|
checkVMFailed(t, vm)
|
|
}
|
|
|
|
func TestLEFT(t *testing.T) {
|
|
prog := makeProgram(opcode.LEFT)
|
|
t.Run("NoArgument", getTestFuncForVM(prog, nil))
|
|
t.Run("NoString", getTestFuncForVM(prog, nil, 2))
|
|
t.Run("NegativeLen", getTestFuncForVM(prog, nil, "abcdef", -1))
|
|
t.Run("Good", getTestFuncForVM(prog, stackitem.NewBuffer([]byte("ab")), "abcdef", 2))
|
|
t.Run("BadBigLen", getTestFuncForVM(prog, nil, "abcdef", 8))
|
|
t.Run("bad, very big len", getTestFuncForVM(prog, nil, "abcdef", maxu64Plus(2)))
|
|
}
|
|
|
|
func TestRIGHT(t *testing.T) {
|
|
prog := makeProgram(opcode.RIGHT)
|
|
t.Run("NoArgument", getTestFuncForVM(prog, nil))
|
|
t.Run("NoString", getTestFuncForVM(prog, nil, 2))
|
|
t.Run("NegativeLen", getTestFuncForVM(prog, nil, "abcdef", -1))
|
|
t.Run("Good", getTestFuncForVM(prog, stackitem.NewBuffer([]byte("ef")), "abcdef", 2))
|
|
t.Run("BadLen", getTestFuncForVM(prog, nil, "abcdef", 8))
|
|
t.Run("bad, very big len", getTestFuncForVM(prog, nil, "abcdef", maxu64Plus(2)))
|
|
}
|
|
|
|
func TestPACK(t *testing.T) {
|
|
for _, op := range []opcode.Opcode{opcode.PACK, opcode.PACKSTRUCT} {
|
|
t.Run(op.String(), func(t *testing.T) {
|
|
prog := makeProgram(op)
|
|
t.Run("BadLen", getTestFuncForVM(prog, nil, 1))
|
|
t.Run("BigLen", getTestFuncForVM(prog, nil, 100500))
|
|
t.Run("Good0Len", getTestFuncForVM(prog, []stackitem.Item{}, 0))
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestPACKGood(t *testing.T) {
|
|
for _, op := range []opcode.Opcode{opcode.PACK, opcode.PACKSTRUCT} {
|
|
t.Run(op.String(), func(t *testing.T) {
|
|
prog := makeProgram(op)
|
|
elements := []int{55, 34, 42}
|
|
vm := load(prog)
|
|
// canary
|
|
vm.estack.PushVal(1)
|
|
for i := len(elements) - 1; i >= 0; i-- {
|
|
vm.estack.PushVal(elements[i])
|
|
}
|
|
vm.estack.PushVal(len(elements))
|
|
runVM(t, vm)
|
|
assert.Equal(t, 2, vm.estack.Len())
|
|
a := vm.estack.Peek(0).Array()
|
|
assert.Equal(t, len(elements), len(a))
|
|
for i := 0; i < len(elements); i++ {
|
|
e := a[i].Value().(*big.Int)
|
|
assert.Equal(t, int64(elements[i]), e.Int64())
|
|
}
|
|
assert.Equal(t, int64(1), vm.estack.Peek(1).BigInt().Int64())
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestPACK_UNPACK_MaxSize(t *testing.T) {
|
|
prog := makeProgram(opcode.PACK, opcode.UNPACK)
|
|
elements := make([]int, MaxStackSize-2)
|
|
vm := load(prog)
|
|
// canary
|
|
vm.estack.PushVal(1)
|
|
for i := len(elements) - 1; i >= 0; i-- {
|
|
vm.estack.PushVal(elements[i])
|
|
}
|
|
vm.estack.PushVal(len(elements))
|
|
runVM(t, vm)
|
|
// check reference counter = 1+1+1024
|
|
assert.Equal(t, 1+1+len(elements), int(vm.refs))
|
|
assert.Equal(t, 1+1+len(elements), vm.estack.Len()) // canary + length + elements
|
|
assert.Equal(t, int64(len(elements)), vm.estack.Peek(0).Value().(*big.Int).Int64())
|
|
for i := 0; i < len(elements); i++ {
|
|
e, ok := vm.estack.Peek(i + 1).Value().(*big.Int)
|
|
assert.True(t, ok)
|
|
assert.Equal(t, int64(elements[i]), e.Int64())
|
|
}
|
|
assert.Equal(t, int64(1), vm.estack.Peek(1+len(elements)).BigInt().Int64())
|
|
}
|
|
|
|
func TestPACK_UNPACK_PACK_MaxSize(t *testing.T) {
|
|
prog := makeProgram(opcode.PACK, opcode.UNPACK, opcode.PACK)
|
|
elements := make([]int, MaxStackSize-2)
|
|
vm := load(prog)
|
|
// canary
|
|
vm.estack.PushVal(1)
|
|
for i := len(elements) - 1; i >= 0; i-- {
|
|
vm.estack.PushVal(elements[i])
|
|
}
|
|
vm.estack.PushVal(len(elements))
|
|
runVM(t, vm)
|
|
// check reference counter = 1+1+1024
|
|
assert.Equal(t, 1+1+len(elements), int(vm.refs))
|
|
assert.Equal(t, 2, vm.estack.Len())
|
|
a := vm.estack.Peek(0).Array()
|
|
assert.Equal(t, len(elements), len(a))
|
|
for i := 0; i < len(elements); i++ {
|
|
e := a[i].Value().(*big.Int)
|
|
assert.Equal(t, int64(elements[i]), e.Int64())
|
|
}
|
|
assert.Equal(t, int64(1), vm.estack.Peek(1).BigInt().Int64())
|
|
}
|
|
|
|
func TestPACKMAP_UNPACK_PACKMAP_MaxSize(t *testing.T) {
|
|
prog := makeProgram(opcode.PACKMAP, opcode.UNPACK, opcode.PACKMAP)
|
|
elements := make([]int, (MaxStackSize-2)/2)
|
|
vm := load(prog)
|
|
// canary
|
|
vm.estack.PushVal(-1)
|
|
for i := len(elements) - 1; i >= 0; i-- {
|
|
elements[i] = i
|
|
vm.estack.PushVal(i * 2)
|
|
vm.estack.PushVal(i)
|
|
}
|
|
vm.estack.PushVal(len(elements))
|
|
runVM(t, vm)
|
|
// check reference counter = 1+1+1024*2
|
|
assert.Equal(t, 1+1+len(elements)*2, int(vm.refs))
|
|
assert.Equal(t, 2, vm.estack.Len())
|
|
m := vm.estack.Peek(0).value.(*stackitem.Map).Value().([]stackitem.MapElement)
|
|
assert.Equal(t, len(elements), len(m))
|
|
for i := 0; i < len(elements); i++ {
|
|
k := m[i].Key.Value().(*big.Int)
|
|
v := m[i].Value.Value().(*big.Int)
|
|
assert.Equal(t, int64(elements[i]), k.Int64())
|
|
assert.Equal(t, int64(elements[i])*2, v.Int64())
|
|
}
|
|
assert.Equal(t, int64(-1), vm.estack.Peek(1).BigInt().Int64())
|
|
}
|
|
|
|
func TestPACKMAPBadKey(t *testing.T) {
|
|
prog := makeProgram(opcode.PACKMAP)
|
|
vm := load(prog)
|
|
vm.estack.PushVal(1)
|
|
vm.estack.PushItem(stackitem.NewBuffer([]byte{1}))
|
|
vm.estack.PushVal(1)
|
|
checkVMFailed(t, vm)
|
|
}
|
|
|
|
func TestUNPACKBadNotArray(t *testing.T) {
|
|
prog := makeProgram(opcode.UNPACK)
|
|
runWithArgs(t, prog, nil, 1)
|
|
}
|
|
|
|
func TestUNPACKGood(t *testing.T) {
|
|
prog := makeProgram(opcode.UNPACK)
|
|
elements := []int{55, 34, 42}
|
|
vm := load(prog)
|
|
// canary
|
|
vm.estack.PushVal(1)
|
|
vm.estack.PushVal(elements)
|
|
runVM(t, vm)
|
|
assert.Equal(t, 5, vm.estack.Len())
|
|
assert.Equal(t, int64(len(elements)), vm.estack.Peek(0).BigInt().Int64())
|
|
for k, v := range elements {
|
|
assert.Equal(t, int64(v), vm.estack.Peek(k+1).BigInt().Int64())
|
|
}
|
|
assert.Equal(t, int64(1), vm.estack.Peek(len(elements)+1).BigInt().Int64())
|
|
}
|
|
|
|
func TestREVERSEITEMS(t *testing.T) {
|
|
prog := makeProgram(opcode.DUP, opcode.REVERSEITEMS)
|
|
t.Run("InvalidItem", getTestFuncForVM(prog, nil, 1))
|
|
t.Run("Buffer", getTestFuncForVM(prog, stackitem.NewBuffer([]byte{3, 2, 1}), stackitem.NewBuffer([]byte{1, 2, 3})))
|
|
}
|
|
|
|
func testREVERSEITEMSIssue437(t *testing.T, i1 opcode.Opcode, t2 stackitem.Type, reversed bool) {
|
|
prog := makeProgram(
|
|
opcode.PUSH0, i1,
|
|
opcode.DUP, opcode.PUSH1, opcode.APPEND,
|
|
opcode.DUP, opcode.PUSH2, opcode.APPEND,
|
|
opcode.DUP, opcode.CONVERT, opcode.Opcode(t2), opcode.REVERSEITEMS)
|
|
|
|
arr := make([]stackitem.Item, 2)
|
|
if reversed {
|
|
arr[0] = stackitem.Make(2)
|
|
arr[1] = stackitem.Make(1)
|
|
} else {
|
|
arr[0] = stackitem.Make(1)
|
|
arr[1] = stackitem.Make(2)
|
|
}
|
|
|
|
if i1 == opcode.NEWARRAY {
|
|
runWithArgs(t, prog, stackitem.NewArray(arr))
|
|
} else {
|
|
runWithArgs(t, prog, stackitem.NewStruct(arr))
|
|
}
|
|
}
|
|
|
|
func TestREVERSEITEMSIssue437(t *testing.T) {
|
|
t.Run("Array+Array", func(t *testing.T) { testREVERSEITEMSIssue437(t, opcode.NEWARRAY, stackitem.ArrayT, true) })
|
|
t.Run("Struct+Struct", func(t *testing.T) { testREVERSEITEMSIssue437(t, opcode.NEWSTRUCT, stackitem.StructT, true) })
|
|
t.Run("Array+Struct", func(t *testing.T) { testREVERSEITEMSIssue437(t, opcode.NEWARRAY, stackitem.StructT, false) })
|
|
t.Run("Struct+Array", func(t *testing.T) { testREVERSEITEMSIssue437(t, opcode.NEWSTRUCT, stackitem.ArrayT, false) })
|
|
}
|
|
|
|
func TestREVERSEITEMSGoodOneElem(t *testing.T) {
|
|
prog := makeProgram(opcode.DUP, opcode.REVERSEITEMS)
|
|
elements := []int{22}
|
|
vm := load(prog)
|
|
vm.estack.PushVal(1)
|
|
vm.estack.PushVal(elements)
|
|
runVM(t, vm)
|
|
assert.Equal(t, 2, vm.estack.Len())
|
|
a := vm.estack.Peek(0).Array()
|
|
assert.Equal(t, len(elements), len(a))
|
|
e := a[0].Value().(*big.Int)
|
|
assert.Equal(t, int64(elements[0]), e.Int64())
|
|
}
|
|
|
|
func TestREVERSEITEMSGoodStruct(t *testing.T) {
|
|
eodd := []int{22, 34, 42, 55, 81}
|
|
even := []int{22, 34, 42, 55, 81, 99}
|
|
eall := [][]int{eodd, even}
|
|
|
|
for _, elements := range eall {
|
|
prog := makeProgram(opcode.DUP, opcode.REVERSEITEMS)
|
|
vm := load(prog)
|
|
vm.estack.PushVal(1)
|
|
|
|
arr := make([]stackitem.Item, len(elements))
|
|
for i := range elements {
|
|
arr[i] = stackitem.Make(elements[i])
|
|
}
|
|
vm.estack.Push(Element{value: stackitem.NewStruct(arr)})
|
|
|
|
runVM(t, vm)
|
|
assert.Equal(t, 2, vm.estack.Len())
|
|
a := vm.estack.Peek(0).Array()
|
|
assert.Equal(t, len(elements), len(a))
|
|
for k, v := range elements {
|
|
e := a[len(a)-1-k].Value().(*big.Int)
|
|
assert.Equal(t, int64(v), e.Int64())
|
|
}
|
|
assert.Equal(t, int64(1), vm.estack.Peek(1).BigInt().Int64())
|
|
}
|
|
}
|
|
|
|
func TestREVERSEITEMSGood(t *testing.T) {
|
|
eodd := []int{22, 34, 42, 55, 81}
|
|
even := []int{22, 34, 42, 55, 81, 99}
|
|
eall := [][]int{eodd, even}
|
|
|
|
for _, elements := range eall {
|
|
prog := makeProgram(opcode.DUP, opcode.REVERSEITEMS)
|
|
vm := load(prog)
|
|
vm.estack.PushVal(1)
|
|
vm.estack.PushVal(elements)
|
|
runVM(t, vm)
|
|
assert.Equal(t, 2, vm.estack.Len())
|
|
a := vm.estack.Peek(0).Array()
|
|
assert.Equal(t, len(elements), len(a))
|
|
for k, v := range elements {
|
|
e := a[len(a)-1-k].Value().(*big.Int)
|
|
assert.Equal(t, int64(v), e.Int64())
|
|
}
|
|
assert.Equal(t, int64(1), vm.estack.Peek(1).BigInt().Int64())
|
|
}
|
|
}
|
|
|
|
func TestREMOVE(t *testing.T) {
|
|
prog := makeProgram(opcode.REMOVE)
|
|
t.Run("NoArgument", getTestFuncForVM(prog, nil))
|
|
t.Run("OneArgument", getTestFuncForVM(prog, nil, 1))
|
|
t.Run("NotArray", getTestFuncForVM(prog, nil, 1, 1))
|
|
t.Run("BadIndex", getTestFuncForVM(prog, nil, []int{22, 34, 42, 55, 81}, 10))
|
|
t.Run("very big index", getTestFuncForVM(prog, nil, []int{22, 34, 42, 55, 81}, maxu64Plus(1)))
|
|
}
|
|
|
|
func TestREMOVEGood(t *testing.T) {
|
|
prog := makeProgram(opcode.DUP, opcode.PUSH2, opcode.REMOVE)
|
|
elements := []int{22, 34, 42, 55, 81}
|
|
reselements := []int{22, 34, 55, 81}
|
|
vm := load(prog)
|
|
vm.estack.PushVal(1)
|
|
vm.estack.PushVal(elements)
|
|
runVM(t, vm)
|
|
assert.Equal(t, 2, vm.estack.Len())
|
|
assert.Equal(t, stackitem.Make(reselements), vm.estack.Pop().value)
|
|
assert.Equal(t, stackitem.Make(1), vm.estack.Pop().value)
|
|
}
|
|
|
|
func TestREMOVEMap(t *testing.T) {
|
|
prog := makeProgram(opcode.REMOVE, opcode.PUSH5, opcode.HASKEY)
|
|
vm := load(prog)
|
|
|
|
m := stackitem.NewMap()
|
|
m.Add(stackitem.Make(5), stackitem.Make(3))
|
|
m.Add(stackitem.Make([]byte{0, 1}), stackitem.Make([]byte{2, 3}))
|
|
vm.estack.Push(Element{value: m})
|
|
vm.estack.Push(Element{value: m})
|
|
vm.estack.PushVal(stackitem.Make(5))
|
|
|
|
runVM(t, vm)
|
|
assert.Equal(t, 1, vm.estack.Len())
|
|
assert.Equal(t, stackitem.Make(false), vm.estack.Pop().value)
|
|
}
|
|
|
|
func testCLEARITEMS(t *testing.T, item stackitem.Item) {
|
|
prog := makeProgram(opcode.DUP, opcode.DUP, opcode.CLEARITEMS, opcode.SIZE)
|
|
v := load(prog)
|
|
v.estack.PushVal(item)
|
|
runVM(t, v)
|
|
require.Equal(t, 2, v.estack.Len())
|
|
require.EqualValues(t, 2, int(v.refs)) // empty collection + it's size
|
|
require.EqualValues(t, 0, v.estack.Pop().BigInt().Int64())
|
|
}
|
|
|
|
func TestCLEARITEMS(t *testing.T) {
|
|
arr := []stackitem.Item{stackitem.NewBigInteger(big.NewInt(1)), stackitem.NewByteArray([]byte{1})}
|
|
m := stackitem.NewMap()
|
|
m.Add(stackitem.NewBigInteger(big.NewInt(1)), stackitem.NewByteArray([]byte{}))
|
|
m.Add(stackitem.NewByteArray([]byte{42}), stackitem.NewBigInteger(big.NewInt(2)))
|
|
|
|
testCases := map[string]stackitem.Item{
|
|
"empty Array": stackitem.NewArray([]stackitem.Item{}),
|
|
"filled Array": stackitem.NewArray(arr),
|
|
"empty Struct": stackitem.NewStruct([]stackitem.Item{}),
|
|
"filled Struct": stackitem.NewStruct(arr),
|
|
"empty Map": stackitem.NewMap(),
|
|
"filled Map": m,
|
|
}
|
|
|
|
for name, item := range testCases {
|
|
t.Run(name, func(t *testing.T) { testCLEARITEMS(t, item) })
|
|
}
|
|
|
|
t.Run("Integer", func(t *testing.T) {
|
|
prog := makeProgram(opcode.CLEARITEMS)
|
|
runWithArgs(t, prog, nil, 1)
|
|
})
|
|
}
|
|
|
|
func TestPOPITEM(t *testing.T) {
|
|
testPOPITEM := func(t *testing.T, item, elem, arr any) {
|
|
prog := makeProgram(opcode.DUP, opcode.POPITEM)
|
|
v := load(prog)
|
|
v.estack.PushVal(item)
|
|
|
|
runVM(t, v)
|
|
require.EqualValues(t, stackitem.Make(elem), v.estack.Pop().Item())
|
|
require.EqualValues(t, stackitem.Make(arr), v.estack.Pop().Item())
|
|
}
|
|
|
|
elems := []stackitem.Item{stackitem.Make(11), stackitem.Make(31)}
|
|
t.Run("Array", func(t *testing.T) {
|
|
testPOPITEM(t, stackitem.NewArray(elems), 31, elems[:1])
|
|
})
|
|
t.Run("Struct", func(t *testing.T) {
|
|
testPOPITEM(t, stackitem.NewStruct(elems), 31, elems[:1])
|
|
})
|
|
t.Run("0-length array", func(t *testing.T) {
|
|
prog := makeProgram(opcode.NEWARRAY0, opcode.POPITEM)
|
|
v := load(prog)
|
|
checkVMFailed(t, v)
|
|
})
|
|
t.Run("primitive type", func(t *testing.T) {
|
|
prog := makeProgram(opcode.PUSH4, opcode.POPITEM)
|
|
v := load(prog)
|
|
checkVMFailed(t, v)
|
|
})
|
|
}
|
|
|
|
func TestSWAPGood(t *testing.T) {
|
|
prog := makeProgram(opcode.SWAP)
|
|
vm := load(prog)
|
|
vm.estack.PushVal(2)
|
|
vm.estack.PushVal(4)
|
|
runVM(t, vm)
|
|
assert.Equal(t, 2, vm.estack.Len())
|
|
assert.Equal(t, int64(2), vm.estack.Pop().BigInt().Int64())
|
|
assert.Equal(t, int64(4), vm.estack.Pop().BigInt().Int64())
|
|
}
|
|
|
|
func TestSWAP(t *testing.T) {
|
|
prog := makeProgram(opcode.SWAP)
|
|
t.Run("EmptyStack", getTestFuncForVM(prog, nil))
|
|
t.Run("SmallStack", getTestFuncForVM(prog, nil, 4))
|
|
}
|
|
|
|
func TestDupInt(t *testing.T) {
|
|
prog := makeProgram(opcode.DUP, opcode.ABS)
|
|
vm := load(prog)
|
|
vm.estack.PushVal(-1)
|
|
runVM(t, vm)
|
|
assert.Equal(t, 2, vm.estack.Len())
|
|
assert.Equal(t, int64(1), vm.estack.Pop().BigInt().Int64())
|
|
assert.Equal(t, int64(-1), vm.estack.Pop().BigInt().Int64())
|
|
}
|
|
|
|
func TestNegateCopy(t *testing.T) {
|
|
prog := makeProgram(opcode.NEGATE)
|
|
v := load(prog)
|
|
bi := stackitem.Make(-1)
|
|
v.estack.PushVal(bi)
|
|
v.estack.PushVal(bi)
|
|
runVM(t, v)
|
|
assert.Equal(t, 2, v.estack.Len())
|
|
assert.Equal(t, int64(1), v.estack.Pop().BigInt().Int64())
|
|
assert.Equal(t, int64(-1), v.estack.Pop().BigInt().Int64())
|
|
}
|
|
|
|
func TestDupByteArray(t *testing.T) {
|
|
prog := makeProgram(opcode.PUSHDATA1, 2, 1, 0,
|
|
opcode.DUP,
|
|
opcode.PUSH1,
|
|
opcode.LEFT,
|
|
opcode.PUSHDATA1, 1, 2,
|
|
opcode.CAT)
|
|
vm := load(prog)
|
|
runVM(t, vm)
|
|
assert.Equal(t, 2, vm.estack.Len())
|
|
assert.Equal(t, []byte{0x01, 0x02}, vm.estack.Pop().Bytes())
|
|
assert.Equal(t, []byte{0x01, 0x00}, vm.estack.Pop().Bytes())
|
|
}
|
|
|
|
func TestDupBool(t *testing.T) {
|
|
prog := makeProgram(opcode.PUSH0, opcode.NOT,
|
|
opcode.DUP,
|
|
opcode.PUSH1, opcode.NOT,
|
|
opcode.BOOLAND)
|
|
vm := load(prog)
|
|
runVM(t, vm)
|
|
assert.Equal(t, 2, vm.estack.Len())
|
|
assert.Equal(t, false, vm.estack.Pop().Bool())
|
|
assert.Equal(t, true, vm.estack.Pop().Bool())
|
|
}
|
|
|
|
var opcodesTestCases = map[opcode.Opcode][]struct {
|
|
name string
|
|
args []any
|
|
expected any
|
|
actual func(vm *VM) any
|
|
}{
|
|
opcode.AND: {
|
|
{
|
|
name: "1_1",
|
|
args: []any{1, 1},
|
|
expected: int64(1),
|
|
actual: func(vm *VM) any {
|
|
return vm.estack.Pop().BigInt().Int64()
|
|
},
|
|
},
|
|
{
|
|
name: "1_0",
|
|
args: []any{1, 0},
|
|
expected: int64(0),
|
|
actual: func(vm *VM) any {
|
|
return vm.estack.Pop().BigInt().Int64()
|
|
},
|
|
},
|
|
{
|
|
name: "0_1",
|
|
args: []any{0, 1},
|
|
expected: int64(0),
|
|
actual: func(vm *VM) any {
|
|
return vm.estack.Pop().BigInt().Int64()
|
|
},
|
|
},
|
|
{
|
|
name: "0_0",
|
|
args: []any{0, 0},
|
|
expected: int64(0),
|
|
actual: func(vm *VM) any {
|
|
return vm.estack.Pop().BigInt().Int64()
|
|
},
|
|
},
|
|
{
|
|
name: "random_values",
|
|
args: []any{
|
|
[]byte{1, 0, 1, 0, 1, 0, 1, 1},
|
|
[]byte{1, 1, 0, 0, 0, 0, 0, 1},
|
|
},
|
|
expected: []byte{1, 0, 0, 0, 0, 0, 0, 1},
|
|
actual: func(vm *VM) any {
|
|
return vm.estack.Pop().Bytes()
|
|
},
|
|
},
|
|
},
|
|
opcode.OR: {
|
|
{
|
|
name: "1_1",
|
|
args: []any{1, 1},
|
|
expected: int64(1),
|
|
actual: func(vm *VM) any {
|
|
return vm.estack.Pop().BigInt().Int64()
|
|
},
|
|
},
|
|
{
|
|
name: "0_0",
|
|
args: []any{0, 0},
|
|
expected: int64(0),
|
|
actual: func(vm *VM) any {
|
|
return vm.estack.Pop().BigInt().Int64()
|
|
},
|
|
},
|
|
{
|
|
name: "0_1",
|
|
args: []any{0, 1},
|
|
expected: int64(1),
|
|
actual: func(vm *VM) any {
|
|
return vm.estack.Pop().BigInt().Int64()
|
|
},
|
|
},
|
|
{
|
|
name: "1_0",
|
|
args: []any{1, 0},
|
|
expected: int64(1),
|
|
actual: func(vm *VM) any {
|
|
return vm.estack.Pop().BigInt().Int64()
|
|
},
|
|
},
|
|
{
|
|
name: "random_values",
|
|
args: []any{
|
|
[]byte{1, 0, 1, 0, 1, 0, 1, 1},
|
|
[]byte{1, 1, 0, 0, 0, 0, 0, 1},
|
|
},
|
|
expected: []byte{1, 1, 1, 0, 1, 0, 1, 1},
|
|
actual: func(vm *VM) any {
|
|
return vm.estack.Pop().Bytes()
|
|
},
|
|
},
|
|
},
|
|
opcode.XOR: {
|
|
{
|
|
name: "1_1",
|
|
args: []any{1, 1},
|
|
expected: int64(0),
|
|
actual: func(vm *VM) any {
|
|
return vm.estack.Pop().BigInt().Int64()
|
|
},
|
|
},
|
|
{
|
|
name: "0_0",
|
|
args: []any{0, 0},
|
|
expected: int64(0),
|
|
actual: func(vm *VM) any {
|
|
return vm.estack.Pop().BigInt().Int64()
|
|
},
|
|
},
|
|
{
|
|
name: "0_1",
|
|
args: []any{0, 1},
|
|
expected: int64(1),
|
|
actual: func(vm *VM) any {
|
|
return vm.estack.Pop().BigInt().Int64()
|
|
},
|
|
},
|
|
{
|
|
name: "1_0",
|
|
args: []any{1, 0},
|
|
expected: int64(1),
|
|
actual: func(vm *VM) any {
|
|
return vm.estack.Pop().BigInt().Int64()
|
|
},
|
|
},
|
|
{
|
|
name: "random_values",
|
|
args: []any{
|
|
[]byte{1, 0, 1, 0, 1, 0, 1, 1},
|
|
[]byte{1, 1, 0, 0, 0, 0, 0, 1},
|
|
},
|
|
expected: []byte{0, 1, 1, 0, 1, 0, 1},
|
|
actual: func(vm *VM) any {
|
|
return vm.estack.Pop().Bytes()
|
|
},
|
|
},
|
|
},
|
|
opcode.BOOLOR: {
|
|
{
|
|
name: "1_1",
|
|
args: []any{true, true},
|
|
expected: true,
|
|
actual: func(vm *VM) any {
|
|
return vm.estack.Pop().Bool()
|
|
},
|
|
},
|
|
{
|
|
name: "0_0",
|
|
args: []any{false, false},
|
|
expected: false,
|
|
actual: func(vm *VM) any {
|
|
return vm.estack.Pop().Bool()
|
|
},
|
|
},
|
|
{
|
|
name: "0_1",
|
|
args: []any{false, true},
|
|
expected: true,
|
|
actual: func(vm *VM) any {
|
|
return vm.estack.Pop().Bool()
|
|
},
|
|
},
|
|
{
|
|
name: "1_0",
|
|
args: []any{true, false},
|
|
expected: true,
|
|
actual: func(vm *VM) any {
|
|
return vm.estack.Pop().Bool()
|
|
},
|
|
},
|
|
},
|
|
opcode.MIN: {
|
|
{
|
|
name: "3_5",
|
|
args: []any{3, 5},
|
|
expected: int64(3),
|
|
actual: func(vm *VM) any {
|
|
return vm.estack.Pop().BigInt().Int64()
|
|
},
|
|
},
|
|
{
|
|
name: "5_3",
|
|
args: []any{5, 3},
|
|
expected: int64(3),
|
|
actual: func(vm *VM) any {
|
|
return vm.estack.Pop().BigInt().Int64()
|
|
},
|
|
},
|
|
{
|
|
name: "3_3",
|
|
args: []any{3, 3},
|
|
expected: int64(3),
|
|
actual: func(vm *VM) any {
|
|
return vm.estack.Pop().BigInt().Int64()
|
|
},
|
|
},
|
|
},
|
|
opcode.MAX: {
|
|
{
|
|
name: "3_5",
|
|
args: []any{3, 5},
|
|
expected: int64(5),
|
|
actual: func(vm *VM) any {
|
|
return vm.estack.Pop().BigInt().Int64()
|
|
},
|
|
},
|
|
{
|
|
name: "5_3",
|
|
args: []any{5, 3},
|
|
expected: int64(5),
|
|
actual: func(vm *VM) any {
|
|
return vm.estack.Pop().BigInt().Int64()
|
|
},
|
|
},
|
|
{
|
|
name: "3_3",
|
|
args: []any{3, 3},
|
|
expected: int64(3),
|
|
actual: func(vm *VM) any {
|
|
return vm.estack.Pop().BigInt().Int64()
|
|
},
|
|
},
|
|
},
|
|
opcode.WITHIN: {
|
|
{
|
|
name: "within",
|
|
args: []any{4, 3, 5},
|
|
expected: true,
|
|
actual: func(vm *VM) any {
|
|
return vm.estack.Pop().Bool()
|
|
},
|
|
},
|
|
{
|
|
name: "less",
|
|
args: []any{2, 3, 5},
|
|
expected: false,
|
|
actual: func(vm *VM) any {
|
|
return vm.estack.Pop().Bool()
|
|
},
|
|
},
|
|
{
|
|
name: "more",
|
|
args: []any{6, 3, 5},
|
|
expected: false,
|
|
actual: func(vm *VM) any {
|
|
return vm.estack.Pop().Bool()
|
|
},
|
|
},
|
|
},
|
|
opcode.NEGATE: {
|
|
{
|
|
name: "3",
|
|
args: []any{3},
|
|
expected: int64(-3),
|
|
actual: func(vm *VM) any {
|
|
return vm.estack.Pop().BigInt().Int64()
|
|
},
|
|
},
|
|
{
|
|
name: "-3",
|
|
args: []any{-3},
|
|
expected: int64(3),
|
|
actual: func(vm *VM) any {
|
|
return vm.estack.Pop().BigInt().Int64()
|
|
},
|
|
},
|
|
{
|
|
name: "0",
|
|
args: []any{0},
|
|
expected: int64(0),
|
|
actual: func(vm *VM) any {
|
|
return vm.estack.Pop().BigInt().Int64()
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
func TestBitAndNumericOpcodes(t *testing.T) {
|
|
for code, opcodeTestCases := range opcodesTestCases {
|
|
t.Run(code.String(), func(t *testing.T) {
|
|
for _, testCase := range opcodeTestCases {
|
|
prog := makeProgram(code)
|
|
vm := load(prog)
|
|
t.Run(testCase.name, func(t *testing.T) {
|
|
for _, arg := range testCase.args {
|
|
vm.estack.PushVal(arg)
|
|
}
|
|
runVM(t, vm)
|
|
assert.Equal(t, testCase.expected, testCase.actual(vm))
|
|
})
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestSLOTOpcodes(t *testing.T) {
|
|
t.Run("Fail", func(t *testing.T) {
|
|
t.Run("EmptyStatic", getTestFuncForVM(makeProgram(opcode.INITSSLOT, 0), nil))
|
|
t.Run("EmptyLocal", getTestFuncForVM(makeProgram(opcode.INITSLOT, 0, 0), nil))
|
|
t.Run("NotEnoughArguments", getTestFuncForVM(makeProgram(opcode.INITSSLOT, 0, 2), nil, 1))
|
|
t.Run("DoubleStatic", getTestFuncForVM(makeProgram(opcode.INITSSLOT, 1, opcode.INITSSLOT, 1), nil))
|
|
t.Run("DoubleLocal", getTestFuncForVM(makeProgram(opcode.INITSLOT, 1, 0, opcode.INITSLOT, 1, 0), nil))
|
|
t.Run("DoubleArgument", getTestFuncForVM(makeProgram(opcode.INITSLOT, 0, 1, opcode.INITSLOT, 0, 1), nil, 1, 2))
|
|
t.Run("LoadBigStatic", getTestFuncForVM(makeProgram(opcode.INITSSLOT, 2, opcode.LDSFLD2), nil))
|
|
t.Run("LoadBigLocal", getTestFuncForVM(makeProgram(opcode.INITSLOT, 2, 2, opcode.LDLOC2), nil, 1, 2))
|
|
t.Run("LoadBigArgument", getTestFuncForVM(makeProgram(opcode.INITSLOT, 2, 2, opcode.LDARG2), nil, 1, 2))
|
|
t.Run("StoreBigStatic", getTestFuncForVM(makeProgram(opcode.INITSSLOT, 2, opcode.STSFLD2), nil, 0))
|
|
t.Run("StoreBigLocal", getTestFuncForVM(makeProgram(opcode.INITSLOT, 2, 2, opcode.STLOC2), nil, 0, 1, 2))
|
|
t.Run("StoreBigArgument", getTestFuncForVM(makeProgram(opcode.INITSLOT, 2, 2, opcode.STARG2), nil, 0, 1, 2))
|
|
})
|
|
|
|
t.Run("Default", func(t *testing.T) {
|
|
t.Run("DefaultStatic", getTestFuncForVM(makeProgram(opcode.INITSSLOT, 2, opcode.LDSFLD1), stackitem.Null{}))
|
|
t.Run("DefaultLocal", getTestFuncForVM(makeProgram(opcode.INITSLOT, 2, 0, opcode.LDLOC1), stackitem.Null{}))
|
|
t.Run("DefaultArgument", getTestFuncForVM(makeProgram(opcode.INITSLOT, 0, 2, opcode.LDARG1), 2, 2, 1))
|
|
})
|
|
|
|
t.Run("Set/Get", func(t *testing.T) {
|
|
t.Run("FailCrossLoads", func(t *testing.T) {
|
|
t.Run("Static/Local", getTestFuncForVM(makeProgram(opcode.INITSSLOT, 2, opcode.LDLOC1), nil))
|
|
t.Run("Static/Argument", getTestFuncForVM(makeProgram(opcode.INITSSLOT, 2, opcode.LDARG1), nil))
|
|
t.Run("Local/Argument", getTestFuncForVM(makeProgram(opcode.INITSLOT, 0, 2, opcode.LDLOC1), nil))
|
|
t.Run("Argument/Local", getTestFuncForVM(makeProgram(opcode.INITSLOT, 2, 0, opcode.LDARG1), nil))
|
|
})
|
|
|
|
t.Run("Static", getTestFuncForVM(makeProgram(opcode.INITSSLOT, 8, opcode.STSFLD, 7, opcode.LDSFLD, 7), 42, 42))
|
|
t.Run("Local", getTestFuncForVM(makeProgram(opcode.INITSLOT, 8, 0, opcode.STLOC, 7, opcode.LDLOC, 7), 42, 42))
|
|
t.Run("Argument", getTestFuncForVM(makeProgram(opcode.INITSLOT, 0, 2, opcode.STARG, 1, opcode.LDARG, 1), 42, 42, 1, 2))
|
|
})
|
|
|
|
t.Run("InitStaticSlotInMethod", func(t *testing.T) {
|
|
prog := makeProgram(
|
|
opcode.CALL, 4, opcode.LDSFLD0, opcode.RET,
|
|
opcode.INITSSLOT, 1, opcode.PUSH12, opcode.STSFLD0, opcode.RET,
|
|
)
|
|
runWithArgs(t, prog, 12)
|
|
})
|
|
}
|
|
|
|
func TestNestedStructClone(t *testing.T) {
|
|
progs := []string{
|
|
// VALUES for deeply nested structs, see neo-project/neo#2534.
|
|
"5601c501fe0360589d604a12c0db415824f7cd45",
|
|
// APPEND of deeply nested struct to empty array.
|
|
"5601c2c501fe0360589d604a12c0db415824f7cf45",
|
|
// VALUES for map with deeply nested struct.
|
|
"5601c84a11c501fe0060589d604a12c0db415824f7d0cd45",
|
|
// VALUES for a lot of not-so-deep nested structs.
|
|
"5601c5000a60589d604a12c0db415824f701fe03504a519d4a102afa01ff03c0cd45",
|
|
}
|
|
for _, h := range progs {
|
|
prog, err := hex.DecodeString(h)
|
|
require.NoError(t, err)
|
|
vm := load(prog)
|
|
checkVMFailed(t, vm)
|
|
}
|
|
}
|
|
|
|
func TestNestedStructEquals(t *testing.T) {
|
|
h := "560112c501fe0160589d604a12c0db415824f7509d4a102aec4597" // See neo-project/neo-vm#426.
|
|
prog, err := hex.DecodeString(h)
|
|
require.NoError(t, err)
|
|
vm := load(prog)
|
|
checkVMFailed(t, vm)
|
|
}
|
|
|
|
func TestRemoveReferrer(t *testing.T) {
|
|
h := "560110c34a10c36058cf4540" // #2501
|
|
prog, err := hex.DecodeString(h)
|
|
require.NoError(t, err)
|
|
vm := load(prog)
|
|
require.NoError(t, vm.StepInto()) // INITSSLOT
|
|
assert.Equal(t, 1, int(vm.refs))
|
|
require.NoError(t, vm.StepInto()) // PUSH0
|
|
assert.Equal(t, 2, int(vm.refs))
|
|
require.NoError(t, vm.StepInto()) // NEWARRAY
|
|
assert.Equal(t, 2, int(vm.refs))
|
|
require.NoError(t, vm.StepInto()) // DUP
|
|
assert.Equal(t, 3, int(vm.refs))
|
|
require.NoError(t, vm.StepInto()) // PUSH0
|
|
assert.Equal(t, 4, int(vm.refs))
|
|
require.NoError(t, vm.StepInto()) // NEWARRAY
|
|
assert.Equal(t, 4, int(vm.refs))
|
|
require.NoError(t, vm.StepInto()) // STSFLD0
|
|
assert.Equal(t, 3, int(vm.refs))
|
|
require.NoError(t, vm.StepInto()) // LDSFLD0
|
|
assert.Equal(t, 4, int(vm.refs))
|
|
require.NoError(t, vm.StepInto()) // APPEND
|
|
assert.Equal(t, 3, int(vm.refs))
|
|
require.NoError(t, vm.StepInto()) // DROP
|
|
assert.Equal(t, 1, int(vm.refs))
|
|
require.NoError(t, vm.StepInto()) // RET
|
|
assert.Equal(t, 0, int(vm.refs))
|
|
}
|
|
|
|
func TestUninitializedSyscallHandler(t *testing.T) {
|
|
v := newTestVM()
|
|
v.Reset(trigger.Application) // Reset SyscallHandler.
|
|
id := make([]byte, 4)
|
|
binary.LittleEndian.PutUint32(id, interopnames.ToID([]byte(interopnames.SystemRuntimeGasLeft)))
|
|
script := append([]byte{byte(opcode.SYSCALL)}, id...)
|
|
v.LoadScript(script)
|
|
err := v.Run()
|
|
require.Error(t, err)
|
|
require.True(t, strings.Contains(err.Error(), "SyscallHandler is not initialized"), err.Error())
|
|
assert.Equal(t, true, v.HasFailed())
|
|
}
|
|
|
|
func TestCannotSetOnExecHookOfStartedVm(t *testing.T) {
|
|
prog := makeProgram(opcode.NOP)
|
|
v := load(prog)
|
|
runVM(t, v)
|
|
require.Panics(t, func() {
|
|
v.SetOnExecHook(func(scriptHash util.Uint160, offset int, opcode opcode.Opcode) {})
|
|
})
|
|
}
|
|
|
|
func TestOnExecHookGivesValidTrace(t *testing.T) {
|
|
prog := makeProgram(opcode.NOP, opcode.NOP, opcode.NOP)
|
|
expectedOffsets := []int{0, 1, 2, 3}
|
|
expectedOpcodes := []opcode.Opcode{opcode.NOP, opcode.NOP, opcode.NOP, opcode.RET}
|
|
|
|
actualScriptHashes, actualOffsets, actualOpcodes := runWithTrace(t, prog)
|
|
|
|
require.Equal(t, expectedOffsets, actualOffsets, "Invalid offsets")
|
|
require.Equal(t, expectedOpcodes, actualOpcodes, "Invalid opcodes")
|
|
|
|
t.Run("Validate collected script hashes", func(t *testing.T) {
|
|
scriptHash := actualScriptHashes[0]
|
|
expectedScriptHashes := []util.Uint160{scriptHash, scriptHash, scriptHash, scriptHash}
|
|
require.Equal(t, expectedScriptHashes, actualScriptHashes)
|
|
})
|
|
}
|
|
|
|
func runWithTrace(t *testing.T, prog []byte) ([]util.Uint160, []int, []opcode.Opcode) {
|
|
v := load(prog)
|
|
|
|
scriptHashes := make([]util.Uint160, 0)
|
|
offsets := make([]int, 0)
|
|
opcodes := make([]opcode.Opcode, 0)
|
|
|
|
onExec := func(scriptHash util.Uint160, offset int, opcode opcode.Opcode) {
|
|
scriptHashes = append(scriptHashes, scriptHash)
|
|
offsets = append(offsets, offset)
|
|
opcodes = append(opcodes, opcode)
|
|
}
|
|
v.SetOnExecHook(onExec)
|
|
runVM(t, v)
|
|
|
|
return scriptHashes, offsets, opcodes
|
|
}
|
|
|
|
func makeProgram(opcodes ...opcode.Opcode) []byte {
|
|
prog := make([]byte, len(opcodes)+1) // RET
|
|
for i := 0; i < len(opcodes); i++ {
|
|
prog[i] = byte(opcodes[i])
|
|
}
|
|
prog[len(prog)-1] = byte(opcode.RET)
|
|
return prog
|
|
}
|
|
|
|
func load(prog []byte) *VM {
|
|
vm := newTestVM()
|
|
if len(prog) != 0 {
|
|
vm.LoadScript(prog)
|
|
}
|
|
return vm
|
|
}
|
|
|
|
func randomBytes(n int) []byte {
|
|
const charset = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
|
|
b := make([]byte, n)
|
|
for i := range b {
|
|
b[i] = charset[rand.Intn(len(charset))]
|
|
}
|
|
return b
|
|
}
|
|
|
|
func newTestVM() *VM {
|
|
v := New()
|
|
v.GasLimit = -1
|
|
return v
|
|
}
|