mirror of
https://github.com/nspcc-dev/neo-go.git
synced 2024-12-30 15:01:35 +00:00
651 lines
18 KiB
Go
651 lines
18 KiB
Go
package emit
|
|
|
|
import (
|
|
"encoding/binary"
|
|
"errors"
|
|
"math"
|
|
"math/big"
|
|
"strings"
|
|
"testing"
|
|
|
|
"github.com/nspcc-dev/neo-go/pkg/core/interop/interopnames"
|
|
"github.com/nspcc-dev/neo-go/pkg/encoding/bigint"
|
|
"github.com/nspcc-dev/neo-go/pkg/io"
|
|
"github.com/nspcc-dev/neo-go/pkg/util"
|
|
"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
|
|
"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
|
|
"github.com/stretchr/testify/assert"
|
|
"github.com/stretchr/testify/require"
|
|
)
|
|
|
|
func TestEmitInt(t *testing.T) {
|
|
t.Run("minis one", func(t *testing.T) {
|
|
buf := io.NewBufBinWriter()
|
|
Int(buf.BinWriter, -1)
|
|
result := buf.Bytes()
|
|
assert.Len(t, result, 1)
|
|
assert.EqualValues(t, opcode.PUSHM1, result[0])
|
|
})
|
|
|
|
t.Run("zero", func(t *testing.T) {
|
|
buf := io.NewBufBinWriter()
|
|
Int(buf.BinWriter, 0)
|
|
result := buf.Bytes()
|
|
assert.Len(t, result, 1)
|
|
assert.EqualValues(t, opcode.PUSH0, result[0])
|
|
})
|
|
|
|
t.Run("1-byte int", func(t *testing.T) {
|
|
buf := io.NewBufBinWriter()
|
|
Int(buf.BinWriter, 10)
|
|
result := buf.Bytes()
|
|
assert.EqualValues(t, opcode.PUSH10, result[0])
|
|
})
|
|
|
|
t.Run("big 1-byte int", func(t *testing.T) {
|
|
buf := io.NewBufBinWriter()
|
|
Int(buf.BinWriter, 42)
|
|
result := buf.Bytes()
|
|
assert.EqualValues(t, opcode.PUSHINT8, result[0])
|
|
assert.EqualValues(t, 42, result[1])
|
|
})
|
|
|
|
t.Run("2-byte int", func(t *testing.T) {
|
|
buf := io.NewBufBinWriter()
|
|
Int(buf.BinWriter, 300)
|
|
result := buf.Bytes()
|
|
assert.Equal(t, 3, len(result))
|
|
assert.EqualValues(t, opcode.PUSHINT16, result[0])
|
|
assert.EqualValues(t, 300, bigint.FromBytes(result[1:]).Int64())
|
|
})
|
|
|
|
t.Run("3-byte int", func(t *testing.T) {
|
|
buf := io.NewBufBinWriter()
|
|
Int(buf.BinWriter, 1<<20)
|
|
result := buf.Bytes()
|
|
assert.Equal(t, 5, len(result))
|
|
assert.EqualValues(t, opcode.PUSHINT32, result[0])
|
|
assert.EqualValues(t, 1<<20, bigint.FromBytes(result[1:]).Int64())
|
|
})
|
|
|
|
t.Run("4-byte int", func(t *testing.T) {
|
|
buf := io.NewBufBinWriter()
|
|
Int(buf.BinWriter, 1<<28)
|
|
result := buf.Bytes()
|
|
assert.Equal(t, 5, len(result))
|
|
assert.EqualValues(t, opcode.PUSHINT32, result[0])
|
|
assert.EqualValues(t, 1<<28, bigint.FromBytes(result[1:]).Int64())
|
|
})
|
|
|
|
t.Run("negative 3-byte int with padding", func(t *testing.T) {
|
|
const num = -(1 << 23)
|
|
buf := io.NewBufBinWriter()
|
|
Int(buf.BinWriter, num)
|
|
result := buf.Bytes()
|
|
assert.Equal(t, 5, len(result))
|
|
assert.EqualValues(t, opcode.PUSHINT32, result[0])
|
|
assert.EqualValues(t, num, bigint.FromBytes(result[1:]).Int64())
|
|
})
|
|
}
|
|
|
|
func TestEmitBigInt(t *testing.T) {
|
|
t.Run("biggest positive number", func(t *testing.T) {
|
|
buf := io.NewBufBinWriter()
|
|
bi := big.NewInt(1)
|
|
bi.Lsh(bi, 255)
|
|
bi.Sub(bi, big.NewInt(1))
|
|
|
|
// sanity check
|
|
require.NotPanics(t, func() { stackitem.NewBigInteger(bi) })
|
|
|
|
BigInt(buf.BinWriter, bi)
|
|
require.NoError(t, buf.Err)
|
|
|
|
expected := make([]byte, 33)
|
|
expected[0] = byte(opcode.PUSHINT256)
|
|
for i := 1; i < 32; i++ {
|
|
expected[i] = 0xFF
|
|
}
|
|
expected[32] = 0x7F
|
|
require.Equal(t, expected, buf.Bytes())
|
|
})
|
|
t.Run("smallest negative number", func(t *testing.T) {
|
|
buf := io.NewBufBinWriter()
|
|
bi := big.NewInt(-1)
|
|
bi.Lsh(bi, 255)
|
|
|
|
// sanity check
|
|
require.NotPanics(t, func() { stackitem.NewBigInteger(bi) })
|
|
|
|
BigInt(buf.BinWriter, bi)
|
|
require.NoError(t, buf.Err)
|
|
|
|
expected := make([]byte, 33)
|
|
expected[0] = byte(opcode.PUSHINT256)
|
|
expected[32] = 0x80
|
|
require.Equal(t, expected, buf.Bytes())
|
|
})
|
|
t.Run("biggest positive number plus 1", func(t *testing.T) {
|
|
buf := io.NewBufBinWriter()
|
|
bi := big.NewInt(1)
|
|
bi.Lsh(bi, 255)
|
|
|
|
// sanity check
|
|
require.Panics(t, func() { stackitem.NewBigInteger(bi) })
|
|
|
|
BigInt(buf.BinWriter, bi)
|
|
require.Error(t, buf.Err)
|
|
|
|
t.Run("do not clear previous error", func(t *testing.T) {
|
|
buf.Reset()
|
|
expected := errors.New("expected")
|
|
buf.Err = expected
|
|
BigInt(buf.BinWriter, bi)
|
|
require.Equal(t, expected, buf.Err)
|
|
})
|
|
})
|
|
t.Run("smallest negative number minus 1", func(t *testing.T) {
|
|
buf := io.NewBufBinWriter()
|
|
bi := big.NewInt(-1)
|
|
bi.Lsh(bi, 255)
|
|
bi.Sub(bi, big.NewInt(1))
|
|
|
|
// sanity check
|
|
require.Panics(t, func() { stackitem.NewBigInteger(bi) })
|
|
|
|
BigInt(buf.BinWriter, bi)
|
|
require.Error(t, buf.Err)
|
|
})
|
|
}
|
|
|
|
func getSlice(n int) []byte {
|
|
data := make([]byte, n)
|
|
for i := range data {
|
|
data[i] = byte(i)
|
|
}
|
|
|
|
return data
|
|
}
|
|
|
|
func TestBytes(t *testing.T) {
|
|
t.Run("small slice", func(t *testing.T) {
|
|
buf := io.NewBufBinWriter()
|
|
Bytes(buf.BinWriter, []byte{0, 1, 2, 3})
|
|
|
|
result := buf.Bytes()
|
|
assert.EqualValues(t, opcode.PUSHDATA1, result[0])
|
|
assert.EqualValues(t, 4, result[1])
|
|
assert.EqualValues(t, []byte{0, 1, 2, 3}, result[2:])
|
|
})
|
|
|
|
t.Run("slice with len <= 255", func(t *testing.T) {
|
|
const size = 200
|
|
|
|
buf := io.NewBufBinWriter()
|
|
Bytes(buf.BinWriter, getSlice(size))
|
|
|
|
result := buf.Bytes()
|
|
assert.EqualValues(t, opcode.PUSHDATA1, result[0])
|
|
assert.EqualValues(t, size, result[1])
|
|
assert.Equal(t, getSlice(size), result[2:])
|
|
})
|
|
|
|
t.Run("slice with len <= 65535", func(t *testing.T) {
|
|
const size = 60000
|
|
|
|
buf := io.NewBufBinWriter()
|
|
Bytes(buf.BinWriter, getSlice(size))
|
|
|
|
result := buf.Bytes()
|
|
assert.EqualValues(t, opcode.PUSHDATA2, result[0])
|
|
assert.EqualValues(t, size, binary.LittleEndian.Uint16(result[1:3]))
|
|
assert.Equal(t, getSlice(size), result[3:])
|
|
})
|
|
|
|
t.Run("slice with len > 65535", func(t *testing.T) {
|
|
const size = 100000
|
|
|
|
buf := io.NewBufBinWriter()
|
|
Bytes(buf.BinWriter, getSlice(size))
|
|
|
|
result := buf.Bytes()
|
|
assert.EqualValues(t, opcode.PUSHDATA4, result[0])
|
|
assert.EqualValues(t, size, binary.LittleEndian.Uint32(result[1:5]))
|
|
assert.Equal(t, getSlice(size), result[5:])
|
|
})
|
|
}
|
|
|
|
func TestEmitArray(t *testing.T) {
|
|
t.Run("good", func(t *testing.T) {
|
|
buf := io.NewBufBinWriter()
|
|
var p160 *util.Uint160
|
|
var p256 *util.Uint256
|
|
u160 := util.Uint160{1, 2, 3}
|
|
u256 := util.Uint256{1, 2, 3}
|
|
veryBig := new(big.Int).SetUint64(math.MaxUint64)
|
|
veryBig.Add(veryBig, big.NewInt(1))
|
|
Array(buf.BinWriter,
|
|
uint64(math.MaxUint64),
|
|
uint(math.MaxUint32), // don't use MaxUint to keep test results the same throughout all platforms.
|
|
stackitem.NewMapWithValue([]stackitem.MapElement{
|
|
{
|
|
Key: stackitem.Make(1),
|
|
Value: stackitem.Make("str1"),
|
|
},
|
|
{
|
|
Key: stackitem.Make(2),
|
|
Value: stackitem.Make("str2"),
|
|
},
|
|
}),
|
|
stackitem.NewStruct([]stackitem.Item{
|
|
stackitem.Make(4),
|
|
stackitem.Make("str"),
|
|
}),
|
|
&ConvertibleStruct{
|
|
SomeInt: 5,
|
|
SomeString: "str",
|
|
},
|
|
stackitem.Make(5),
|
|
stackitem.Make("str"),
|
|
stackitem.NewArray([]stackitem.Item{
|
|
stackitem.Make(true),
|
|
stackitem.Make("str"),
|
|
}),
|
|
p160, p256, &u160, &u256, u160, u256, big.NewInt(0), veryBig,
|
|
[]any{int64(1), int64(2)}, nil, int64(1), "str", false, true, []byte{0xCA, 0xFE})
|
|
require.NoError(t, buf.Err)
|
|
|
|
res := buf.Bytes()
|
|
assert.EqualValues(t, opcode.PUSHDATA1, res[0])
|
|
assert.EqualValues(t, 2, res[1])
|
|
assert.EqualValues(t, []byte{0xCA, 0xFE}, res[2:4])
|
|
assert.EqualValues(t, opcode.PUSHT, res[4])
|
|
assert.EqualValues(t, opcode.PUSHF, res[5])
|
|
assert.EqualValues(t, opcode.PUSHDATA1, res[6])
|
|
assert.EqualValues(t, 3, res[7])
|
|
assert.EqualValues(t, []byte("str"), res[8:11])
|
|
assert.EqualValues(t, opcode.PUSH1, res[11])
|
|
assert.EqualValues(t, opcode.PUSHNULL, res[12])
|
|
assert.EqualValues(t, opcode.PUSH2, res[13])
|
|
assert.EqualValues(t, opcode.PUSH1, res[14])
|
|
assert.EqualValues(t, opcode.PUSH2, res[15])
|
|
assert.EqualValues(t, opcode.PACK, res[16])
|
|
assert.EqualValues(t, opcode.PUSHINT128, res[17])
|
|
assert.EqualValues(t, veryBig, bigint.FromBytes(res[18:34]))
|
|
assert.EqualValues(t, opcode.PUSH0, res[34])
|
|
assert.EqualValues(t, opcode.PUSHDATA1, res[35])
|
|
assert.EqualValues(t, 32, res[36])
|
|
assert.EqualValues(t, u256.BytesBE(), res[37:69])
|
|
assert.EqualValues(t, opcode.PUSHDATA1, res[69])
|
|
assert.EqualValues(t, 20, res[70])
|
|
assert.EqualValues(t, u160.BytesBE(), res[71:91])
|
|
assert.EqualValues(t, opcode.PUSHDATA1, res[91])
|
|
assert.EqualValues(t, 32, res[92])
|
|
assert.EqualValues(t, u256.BytesBE(), res[93:125])
|
|
assert.EqualValues(t, opcode.PUSHDATA1, res[125])
|
|
assert.EqualValues(t, 20, res[126])
|
|
assert.EqualValues(t, u160.BytesBE(), res[127:147])
|
|
assert.EqualValues(t, opcode.PUSHNULL, res[147])
|
|
assert.EqualValues(t, opcode.PUSHNULL, res[148])
|
|
// Array of two stackitems:
|
|
assert.EqualValues(t, opcode.PUSHDATA1, res[149])
|
|
assert.EqualValues(t, 3, res[150])
|
|
assert.EqualValues(t, []byte("str"), res[151:154])
|
|
assert.EqualValues(t, opcode.PUSHT, res[154])
|
|
assert.EqualValues(t, opcode.PUSH2, res[155])
|
|
assert.EqualValues(t, opcode.PACK, res[156])
|
|
// ByteString stackitem ("str"):
|
|
assert.EqualValues(t, opcode.PUSHDATA1, res[157])
|
|
assert.EqualValues(t, 3, res[158])
|
|
assert.EqualValues(t, []byte("str"), res[159:162])
|
|
// Integer stackitem (5):
|
|
assert.EqualValues(t, opcode.PUSH5, res[162])
|
|
// Convertible struct:
|
|
assert.EqualValues(t, opcode.PUSHDATA1, res[163])
|
|
assert.EqualValues(t, 3, res[164])
|
|
assert.EqualValues(t, []byte("str"), res[165:168])
|
|
assert.EqualValues(t, opcode.PUSH5, res[168])
|
|
assert.EqualValues(t, opcode.PUSH2, res[169])
|
|
assert.EqualValues(t, opcode.PACK, res[170])
|
|
// Struct stackitem (4, "str")
|
|
assert.EqualValues(t, opcode.PUSHDATA1, res[171])
|
|
assert.EqualValues(t, 3, res[172])
|
|
assert.EqualValues(t, []byte("str"), res[173:176])
|
|
assert.EqualValues(t, opcode.PUSH4, res[176])
|
|
assert.EqualValues(t, opcode.PUSH2, res[177])
|
|
assert.EqualValues(t, opcode.PACKSTRUCT, res[178])
|
|
// Map stackitem (1:"str1", 2:"str2")
|
|
assert.EqualValues(t, opcode.PUSHDATA1, res[179])
|
|
assert.EqualValues(t, 4, res[180])
|
|
assert.EqualValues(t, []byte("str2"), res[181:185])
|
|
assert.EqualValues(t, opcode.PUSH2, res[185])
|
|
assert.EqualValues(t, opcode.PUSHDATA1, res[186])
|
|
assert.EqualValues(t, 4, res[187])
|
|
assert.EqualValues(t, []byte("str1"), res[188:192])
|
|
assert.EqualValues(t, opcode.PUSH1, res[192])
|
|
assert.EqualValues(t, opcode.PUSH2, res[193])
|
|
assert.EqualValues(t, opcode.PACKMAP, res[194])
|
|
// uint (MaxUint32)
|
|
assert.EqualValues(t, opcode.PUSHINT64, res[195])
|
|
assert.EqualValues(t, []byte{
|
|
0xff, 0xff, 0xff, 0xff,
|
|
0, 0, 0, 0,
|
|
}, res[196:204])
|
|
// uint64 (MaxUint64)
|
|
assert.EqualValues(t, opcode.PUSHINT128, res[204])
|
|
assert.EqualValues(t, []byte{
|
|
0xff, 0xff, 0xff, 0xff,
|
|
0xff, 0xff, 0xff, 0xff,
|
|
0, 0, 0, 0,
|
|
0, 0, 0, 0}, res[205:221])
|
|
|
|
// Values packing:
|
|
assert.EqualValues(t, opcode.PUSHINT8, res[221])
|
|
assert.EqualValues(t, byte(23), res[222])
|
|
assert.EqualValues(t, opcode.PACK, res[223])
|
|
|
|
// Overall script length:
|
|
assert.EqualValues(t, 224, len(res))
|
|
})
|
|
|
|
t.Run("empty", func(t *testing.T) {
|
|
buf := io.NewBufBinWriter()
|
|
Array(buf.BinWriter)
|
|
require.NoError(t, buf.Err)
|
|
assert.EqualValues(t, []byte{byte(opcode.NEWARRAY0)}, buf.Bytes())
|
|
})
|
|
|
|
t.Run("invalid type", func(t *testing.T) {
|
|
buf := io.NewBufBinWriter()
|
|
Array(buf.BinWriter, struct{}{})
|
|
require.Error(t, buf.Err)
|
|
})
|
|
}
|
|
|
|
func TestEmitBool(t *testing.T) {
|
|
buf := io.NewBufBinWriter()
|
|
Bool(buf.BinWriter, true)
|
|
Bool(buf.BinWriter, false)
|
|
result := buf.Bytes()
|
|
assert.EqualValues(t, opcode.PUSHT, result[0])
|
|
assert.EqualValues(t, opcode.PUSHF, result[1])
|
|
}
|
|
|
|
func TestEmitOpcode(t *testing.T) {
|
|
w := io.NewBufBinWriter()
|
|
Opcodes(w.BinWriter, opcode.PUSH1, opcode.NEWMAP)
|
|
result := w.Bytes()
|
|
assert.Equal(t, result, []byte{byte(opcode.PUSH1), byte(opcode.NEWMAP)})
|
|
}
|
|
|
|
func TestEmitString(t *testing.T) {
|
|
buf := io.NewBufBinWriter()
|
|
str := "City Of Zion"
|
|
String(buf.BinWriter, str)
|
|
assert.Equal(t, buf.Len(), len(str)+2)
|
|
assert.Equal(t, buf.Bytes()[2:], []byte(str))
|
|
}
|
|
|
|
func TestEmitSyscall(t *testing.T) {
|
|
syscalls := []string{
|
|
interopnames.SystemRuntimeLog,
|
|
interopnames.SystemRuntimeNotify,
|
|
"System.Runtime.Whatever",
|
|
}
|
|
|
|
buf := io.NewBufBinWriter()
|
|
for _, syscall := range syscalls {
|
|
Syscall(buf.BinWriter, syscall)
|
|
result := buf.Bytes()
|
|
assert.Equal(t, 5, len(result))
|
|
assert.Equal(t, opcode.Opcode(result[0]), opcode.SYSCALL)
|
|
assert.Equal(t, binary.LittleEndian.Uint32(result[1:]), interopnames.ToID([]byte(syscall)))
|
|
buf.Reset()
|
|
}
|
|
|
|
t.Run("empty syscall", func(t *testing.T) {
|
|
buf := io.NewBufBinWriter()
|
|
Syscall(buf.BinWriter, "")
|
|
assert.Error(t, buf.Err)
|
|
})
|
|
|
|
t.Run("empty syscall after error", func(t *testing.T) {
|
|
buf := io.NewBufBinWriter()
|
|
err := errors.New("first error")
|
|
|
|
buf.Err = err
|
|
Syscall(buf.BinWriter, "")
|
|
assert.Equal(t, err, buf.Err)
|
|
})
|
|
}
|
|
|
|
func TestJmp(t *testing.T) {
|
|
const label = 0x23
|
|
|
|
t.Run("correct", func(t *testing.T) {
|
|
ops := []opcode.Opcode{opcode.JMP, opcode.JMPIF, opcode.JMPIFNOT, opcode.CALL}
|
|
for i := range ops {
|
|
t.Run(ops[i].String(), func(t *testing.T) {
|
|
buf := io.NewBufBinWriter()
|
|
Jmp(buf.BinWriter, ops[i], label)
|
|
assert.NoError(t, buf.Err)
|
|
|
|
result := buf.Bytes()
|
|
assert.EqualValues(t, ops[i], result[0])
|
|
assert.EqualValues(t, 0x23, binary.LittleEndian.Uint16(result[1:]))
|
|
})
|
|
}
|
|
})
|
|
|
|
t.Run("not a jump instruction", func(t *testing.T) {
|
|
buf := io.NewBufBinWriter()
|
|
Jmp(buf.BinWriter, opcode.ABS, label)
|
|
assert.Error(t, buf.Err)
|
|
})
|
|
|
|
t.Run("not a jump after error", func(t *testing.T) {
|
|
buf := io.NewBufBinWriter()
|
|
err := errors.New("first error")
|
|
|
|
buf.Err = err
|
|
Jmp(buf.BinWriter, opcode.ABS, label)
|
|
assert.Error(t, buf.Err)
|
|
})
|
|
}
|
|
|
|
func TestEmitCall(t *testing.T) {
|
|
buf := io.NewBufBinWriter()
|
|
Call(buf.BinWriter, opcode.JMP, 100)
|
|
result := buf.Bytes()
|
|
assert.Equal(t, opcode.Opcode(result[0]), opcode.JMP)
|
|
label := binary.LittleEndian.Uint16(result[1:3])
|
|
assert.Equal(t, label, uint16(100))
|
|
}
|
|
|
|
func TestEmitStackitem(t *testing.T) {
|
|
t.Run("good", func(t *testing.T) {
|
|
buf := io.NewBufBinWriter()
|
|
itms := []stackitem.Item{
|
|
stackitem.Make(true),
|
|
stackitem.Make(false),
|
|
stackitem.Make(5),
|
|
stackitem.Make("str"),
|
|
stackitem.Make([]stackitem.Item{
|
|
stackitem.Make(true),
|
|
stackitem.Make([]stackitem.Item{
|
|
stackitem.Make(1),
|
|
stackitem.Make("str"),
|
|
}),
|
|
}),
|
|
stackitem.NewStruct([]stackitem.Item{
|
|
stackitem.Make(true),
|
|
stackitem.Make(7),
|
|
}),
|
|
stackitem.NewMapWithValue([]stackitem.MapElement{
|
|
{
|
|
Key: stackitem.Make(7),
|
|
Value: stackitem.Make("str1"),
|
|
},
|
|
{
|
|
Key: stackitem.Make(8),
|
|
Value: stackitem.Make("str2"),
|
|
},
|
|
}),
|
|
stackitem.Null{},
|
|
}
|
|
for _, si := range itms {
|
|
StackItem(buf.BinWriter, si)
|
|
}
|
|
require.NoError(t, buf.Err)
|
|
res := buf.Bytes()
|
|
|
|
// Single values:
|
|
assert.EqualValues(t, opcode.PUSHT, res[0])
|
|
assert.EqualValues(t, opcode.PUSHF, res[1])
|
|
assert.EqualValues(t, opcode.PUSH5, res[2])
|
|
assert.EqualValues(t, opcode.PUSHDATA1, res[3])
|
|
assert.EqualValues(t, 3, res[4])
|
|
assert.EqualValues(t, []byte("str"), res[5:8])
|
|
// Nested array:
|
|
assert.EqualValues(t, opcode.PUSHDATA1, res[8])
|
|
assert.EqualValues(t, 3, res[9])
|
|
assert.EqualValues(t, []byte("str"), res[10:13])
|
|
assert.EqualValues(t, opcode.PUSH1, res[13])
|
|
assert.EqualValues(t, opcode.PUSH2, res[14])
|
|
assert.EqualValues(t, opcode.PACK, res[15])
|
|
assert.EqualValues(t, opcode.PUSHT, res[16])
|
|
assert.EqualValues(t, opcode.PUSH2, res[17])
|
|
assert.EqualValues(t, opcode.PACK, res[18])
|
|
// Struct (true, 7):
|
|
assert.EqualValues(t, opcode.PUSH7, res[19])
|
|
assert.EqualValues(t, opcode.PUSHT, res[20])
|
|
assert.EqualValues(t, opcode.PUSH2, res[21])
|
|
assert.EqualValues(t, opcode.PACKSTRUCT, res[22])
|
|
// Map (7:"str1", 8:"str2"):
|
|
assert.EqualValues(t, opcode.PUSHDATA1, res[23])
|
|
assert.EqualValues(t, 4, res[24])
|
|
assert.EqualValues(t, []byte("str2"), res[25:29])
|
|
assert.EqualValues(t, opcode.PUSH8, res[29])
|
|
assert.EqualValues(t, opcode.PUSHDATA1, res[30])
|
|
assert.EqualValues(t, 4, res[31])
|
|
assert.EqualValues(t, []byte("str1"), res[32:36])
|
|
assert.EqualValues(t, opcode.PUSH7, res[36])
|
|
assert.EqualValues(t, opcode.PUSH2, res[37])
|
|
assert.EqualValues(t, opcode.PACKMAP, res[38])
|
|
// Null:
|
|
assert.EqualValues(t, opcode.PUSHNULL, res[39])
|
|
|
|
// Overall script length:
|
|
require.Equal(t, 40, len(res))
|
|
})
|
|
|
|
t.Run("unsupported", func(t *testing.T) {
|
|
itms := []stackitem.Item{
|
|
stackitem.NewInterop(nil),
|
|
stackitem.NewPointer(123, []byte{123}),
|
|
}
|
|
for _, si := range itms {
|
|
buf := io.NewBufBinWriter()
|
|
StackItem(buf.BinWriter, si)
|
|
require.Error(t, buf.Err)
|
|
}
|
|
})
|
|
|
|
t.Run("invalid any", func(t *testing.T) {
|
|
buf := io.NewBufBinWriter()
|
|
StackItem(buf.BinWriter, StrangeStackItem{})
|
|
actualErr := buf.Err
|
|
require.Error(t, actualErr)
|
|
require.True(t, strings.Contains(actualErr.Error(), "only nil value supported"), actualErr.Error())
|
|
})
|
|
}
|
|
|
|
type StrangeStackItem struct{}
|
|
|
|
var _ = stackitem.Item(StrangeStackItem{})
|
|
|
|
func (StrangeStackItem) Value() any {
|
|
return struct{}{}
|
|
}
|
|
func (StrangeStackItem) Type() stackitem.Type {
|
|
return stackitem.AnyT
|
|
}
|
|
func (StrangeStackItem) String() string {
|
|
panic("TODO")
|
|
}
|
|
func (StrangeStackItem) Dup() stackitem.Item {
|
|
panic("TODO")
|
|
}
|
|
func (StrangeStackItem) TryBool() (bool, error) {
|
|
panic("TODO")
|
|
}
|
|
func (StrangeStackItem) TryBytes() ([]byte, error) {
|
|
panic("TODO")
|
|
}
|
|
func (StrangeStackItem) TryInteger() (*big.Int, error) {
|
|
panic("TODO")
|
|
}
|
|
func (StrangeStackItem) Equals(stackitem.Item) bool {
|
|
panic("TODO")
|
|
}
|
|
func (StrangeStackItem) Convert(stackitem.Type) (stackitem.Item, error) {
|
|
panic("TODO")
|
|
}
|
|
|
|
type ConvertibleStruct struct {
|
|
SomeInt int
|
|
SomeString string
|
|
err error
|
|
}
|
|
|
|
var _ = stackitem.Convertible(&ConvertibleStruct{})
|
|
|
|
func (s *ConvertibleStruct) ToStackItem() (stackitem.Item, error) {
|
|
if s.err != nil {
|
|
return nil, s.err
|
|
}
|
|
return stackitem.NewArray([]stackitem.Item{
|
|
stackitem.Make(s.SomeInt),
|
|
stackitem.Make(s.SomeString),
|
|
}), nil
|
|
}
|
|
|
|
func (s *ConvertibleStruct) FromStackItem(si stackitem.Item) error {
|
|
panic("TODO")
|
|
}
|
|
|
|
func TestEmitConvertible(t *testing.T) {
|
|
t.Run("good", func(t *testing.T) {
|
|
buf := io.NewBufBinWriter()
|
|
str := &ConvertibleStruct{
|
|
SomeInt: 5,
|
|
SomeString: "str",
|
|
}
|
|
Convertible(buf.BinWriter, str)
|
|
require.NoError(t, buf.Err)
|
|
res := buf.Bytes()
|
|
|
|
// The struct itself:
|
|
assert.EqualValues(t, opcode.PUSHDATA1, res[0])
|
|
assert.EqualValues(t, 3, res[1])
|
|
assert.EqualValues(t, []byte("str"), res[2:5])
|
|
assert.EqualValues(t, opcode.PUSH5, res[5])
|
|
assert.EqualValues(t, opcode.PUSH2, res[6])
|
|
assert.EqualValues(t, opcode.PACK, res[7])
|
|
|
|
// Overall length:
|
|
assert.EqualValues(t, 8, len(res))
|
|
})
|
|
|
|
t.Run("error on conversion", func(t *testing.T) {
|
|
buf := io.NewBufBinWriter()
|
|
expectedErr := errors.New("error on conversion")
|
|
str := &ConvertibleStruct{
|
|
err: expectedErr,
|
|
}
|
|
Convertible(buf.BinWriter, str)
|
|
actualErr := buf.Err
|
|
require.Error(t, actualErr)
|
|
require.ErrorIs(t, actualErr, expectedErr)
|
|
})
|
|
}
|