neo-go/pkg/core/native/std_test.go

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package native
import (
"encoding/base64"
"encoding/hex"
"math"
"math/big"
"strings"
"testing"
"github.com/mr-tron/base58"
"github.com/nspcc-dev/neo-go/pkg/core/interop"
"github.com/nspcc-dev/neo-go/pkg/io"
"github.com/nspcc-dev/neo-go/pkg/vm"
"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestStdLibItoaAtoi(t *testing.T) {
s := newStd()
ic := &interop.Context{VM: vm.New()}
var actual stackitem.Item
t.Run("itoa-atoi", func(t *testing.T) {
var testCases = []struct {
num *big.Int
base *big.Int
result string
}{
{big.NewInt(0), big.NewInt(10), "0"},
{big.NewInt(0), big.NewInt(16), "0"},
{big.NewInt(1), big.NewInt(10), "1"},
{big.NewInt(-1), big.NewInt(10), "-1"},
{big.NewInt(1), big.NewInt(16), "1"},
{big.NewInt(7), big.NewInt(16), "7"},
{big.NewInt(8), big.NewInt(16), "08"},
{big.NewInt(65535), big.NewInt(16), "0FFFF"},
{big.NewInt(15), big.NewInt(16), "0F"},
{big.NewInt(-1), big.NewInt(16), "F"},
}
for _, tc := range testCases {
require.NotPanics(t, func() {
actual = s.itoa(ic, []stackitem.Item{stackitem.Make(tc.num), stackitem.Make(tc.base)})
})
require.Equal(t, stackitem.Make(tc.result), actual)
require.NotPanics(t, func() {
actual = s.atoi(ic, []stackitem.Item{stackitem.Make(tc.result), stackitem.Make(tc.base)})
})
require.Equal(t, stackitem.Make(tc.num), actual)
if tc.base.Int64() == 10 {
require.NotPanics(t, func() {
actual = s.itoa10(ic, []stackitem.Item{stackitem.Make(tc.num)})
})
require.Equal(t, stackitem.Make(tc.result), actual)
require.NotPanics(t, func() {
actual = s.atoi10(ic, []stackitem.Item{stackitem.Make(tc.result)})
})
require.Equal(t, stackitem.Make(tc.num), actual)
}
}
t.Run("-1", func(t *testing.T) {
for _, str := range []string{"FF", "FFF", "FFFF"} {
require.NotPanics(t, func() {
actual = s.atoi(ic, []stackitem.Item{stackitem.Make(str), stackitem.Make(16)})
})
require.Equal(t, stackitem.Make(-1), actual)
}
})
})
t.Run("itoa error", func(t *testing.T) {
var testCases = []struct {
num *big.Int
base *big.Int
err error
}{
{big.NewInt(1), big.NewInt(13), ErrInvalidBase},
{big.NewInt(-1), new(big.Int).Add(big.NewInt(math.MaxInt64), big.NewInt(10)), ErrInvalidBase},
}
for _, tc := range testCases {
require.PanicsWithError(t, tc.err.Error(), func() {
_ = s.itoa(ic, []stackitem.Item{stackitem.Make(tc.num), stackitem.Make(tc.base)})
})
}
})
t.Run("atoi error", func(t *testing.T) {
var testCases = []struct {
num string
base *big.Int
err error
}{
{"1", big.NewInt(13), ErrInvalidBase},
{"1", new(big.Int).Add(big.NewInt(math.MaxInt64), big.NewInt(16)), ErrInvalidBase},
{"1_000", big.NewInt(10), ErrInvalidFormat},
{"FE", big.NewInt(10), ErrInvalidFormat},
{"XD", big.NewInt(16), ErrInvalidFormat},
{strings.Repeat("0", stdMaxInputLength+1), big.NewInt(10), ErrTooBigInput},
}
for _, tc := range testCases {
require.PanicsWithError(t, tc.err.Error(), func() {
_ = s.atoi(ic, []stackitem.Item{stackitem.Make(tc.num), stackitem.Make(tc.base)})
})
}
})
}
func TestStdLibJSON(t *testing.T) {
s := newStd()
ic := &interop.Context{VM: vm.New()}
var actual stackitem.Item
t.Run("JSONSerialize", func(t *testing.T) {
t.Run("Good", func(t *testing.T) {
require.NotPanics(t, func() {
actual = s.jsonSerialize(ic, []stackitem.Item{stackitem.Make(42)})
})
require.Equal(t, stackitem.Make([]byte("42")), actual)
})
t.Run("Bad", func(t *testing.T) {
arr := stackitem.NewArray([]stackitem.Item{
stackitem.NewByteArray(make([]byte, stackitem.MaxSize/2)),
stackitem.NewByteArray(make([]byte, stackitem.MaxSize/2)),
})
require.Panics(t, func() {
_ = s.jsonSerialize(ic, []stackitem.Item{arr})
})
})
})
t.Run("JSONDeserialize", func(t *testing.T) {
t.Run("Good", func(t *testing.T) {
require.NotPanics(t, func() {
actual = s.jsonDeserialize(ic, []stackitem.Item{stackitem.Make("42")})
})
require.Equal(t, stackitem.Make(42), actual)
})
t.Run("Bad", func(t *testing.T) {
require.Panics(t, func() {
_ = s.jsonDeserialize(ic, []stackitem.Item{stackitem.Make("{]")})
})
require.Panics(t, func() {
_ = s.jsonDeserialize(ic, []stackitem.Item{stackitem.NewInterop(nil)})
})
})
})
}
func TestStdLibEncodeDecode(t *testing.T) {
s := newStd()
original := []byte("my pretty string")
encoded64 := base64.StdEncoding.EncodeToString(original)
encoded58 := base58.Encode(original)
ic := &interop.Context{VM: vm.New()}
var actual stackitem.Item
bigInputArgs := []stackitem.Item{stackitem.Make(strings.Repeat("6", stdMaxInputLength+1))}
t.Run("Encode64", func(t *testing.T) {
require.NotPanics(t, func() {
actual = s.base64Encode(ic, []stackitem.Item{stackitem.Make(original)})
})
require.Equal(t, stackitem.Make(encoded64), actual)
})
t.Run("Encode64/error", func(t *testing.T) {
require.PanicsWithError(t, ErrTooBigInput.Error(),
func() { s.base64Encode(ic, bigInputArgs) })
})
t.Run("Encode58", func(t *testing.T) {
require.NotPanics(t, func() {
actual = s.base58Encode(ic, []stackitem.Item{stackitem.Make(original)})
})
require.Equal(t, stackitem.Make(encoded58), actual)
})
t.Run("Encode58/error", func(t *testing.T) {
require.PanicsWithError(t, ErrTooBigInput.Error(),
func() { s.base58Encode(ic, bigInputArgs) })
})
t.Run("Decode64/positive", func(t *testing.T) {
require.NotPanics(t, func() {
actual = s.base64Decode(ic, []stackitem.Item{stackitem.Make(encoded64)})
})
require.Equal(t, stackitem.Make(original), actual)
})
t.Run("Decode64/error", func(t *testing.T) {
require.Panics(t, func() {
_ = s.base64Decode(ic, []stackitem.Item{stackitem.Make(encoded64 + "%")})
})
require.Panics(t, func() {
_ = s.base64Decode(ic, []stackitem.Item{stackitem.NewInterop(nil)})
})
require.PanicsWithError(t, ErrTooBigInput.Error(),
func() { s.base64Decode(ic, bigInputArgs) })
})
t.Run("Decode58/positive", func(t *testing.T) {
require.NotPanics(t, func() {
actual = s.base58Decode(ic, []stackitem.Item{stackitem.Make(encoded58)})
})
require.Equal(t, stackitem.Make(original), actual)
})
t.Run("Decode58/error", func(t *testing.T) {
require.Panics(t, func() {
_ = s.base58Decode(ic, []stackitem.Item{stackitem.Make(encoded58 + "%")})
})
require.Panics(t, func() {
_ = s.base58Decode(ic, []stackitem.Item{stackitem.NewInterop(nil)})
})
require.PanicsWithError(t, ErrTooBigInput.Error(),
func() { s.base58Decode(ic, bigInputArgs) })
})
}
func TestStdLibSerialize(t *testing.T) {
s := newStd()
ic := &interop.Context{VM: vm.New()}
t.Run("recursive", func(t *testing.T) {
arr := stackitem.NewArray(nil)
arr.Append(arr)
require.Panics(t, func() {
_ = s.serialize(ic, []stackitem.Item{arr})
})
})
t.Run("big item", func(t *testing.T) {
require.Panics(t, func() {
_ = s.serialize(ic, []stackitem.Item{stackitem.NewByteArray(make([]byte, stackitem.MaxSize))})
})
})
t.Run("good", func(t *testing.T) {
var (
actualSerialized stackitem.Item
actualDeserialized stackitem.Item
)
require.NotPanics(t, func() {
actualSerialized = s.serialize(ic, []stackitem.Item{stackitem.Make(42)})
})
w := io.NewBufBinWriter()
stackitem.EncodeBinaryStackItem(stackitem.Make(42), w.BinWriter)
require.NoError(t, w.Err)
encoded := w.Bytes()
require.Equal(t, stackitem.Make(encoded), actualSerialized)
require.NotPanics(t, func() {
actualDeserialized = s.deserialize(ic, []stackitem.Item{actualSerialized})
})
require.Equal(t, stackitem.Make(42), actualDeserialized)
t.Run("bad", func(t *testing.T) {
encoded[0] ^= 0xFF
require.Panics(t, func() {
_ = s.deserialize(ic, []stackitem.Item{stackitem.Make(encoded)})
})
})
})
}
func TestStdLibSerializeDeserialize(t *testing.T) {
s := newStd()
ic := &interop.Context{VM: vm.New()}
var actual stackitem.Item
checkSerializeDeserialize := func(t *testing.T, value interface{}, expected stackitem.Item) {
require.NotPanics(t, func() {
actual = s.serialize(ic, []stackitem.Item{stackitem.Make(value)})
})
require.NotPanics(t, func() {
actual = s.deserialize(ic, []stackitem.Item{actual})
})
require.Equal(t, expected, actual)
}
t.Run("Bool", func(t *testing.T) {
checkSerializeDeserialize(t, true, stackitem.NewBool(true))
})
t.Run("ByteArray", func(t *testing.T) {
checkSerializeDeserialize(t, []byte{1, 2, 3}, stackitem.NewByteArray([]byte{1, 2, 3}))
})
t.Run("Integer", func(t *testing.T) {
checkSerializeDeserialize(t, 48, stackitem.NewBigInteger(big.NewInt(48)))
})
t.Run("Array", func(t *testing.T) {
arr := stackitem.NewArray([]stackitem.Item{
stackitem.Make(true),
stackitem.Make(123),
stackitem.NewMap()})
checkSerializeDeserialize(t, arr, arr)
})
t.Run("Struct", func(t *testing.T) {
st := stackitem.NewStruct([]stackitem.Item{
stackitem.Make(true),
stackitem.Make(123),
stackitem.NewMap(),
})
checkSerializeDeserialize(t, st, st)
})
t.Run("Map", func(t *testing.T) {
item := stackitem.NewMap()
item.Add(stackitem.Make(true), stackitem.Make([]byte{1, 2, 3}))
item.Add(stackitem.Make([]byte{0}), stackitem.Make(false))
checkSerializeDeserialize(t, item, item)
})
t.Run("Serialize MapCompat", func(t *testing.T) {
resHex := "480128036b6579280576616c7565"
res, err := hex.DecodeString(resHex)
require.NoError(t, err)
item := stackitem.NewMap()
item.Add(stackitem.Make([]byte("key")), stackitem.Make([]byte("value")))
require.NotPanics(t, func() {
actual = s.serialize(ic, []stackitem.Item{stackitem.Make(item)})
})
bytes, err := actual.TryBytes()
require.NoError(t, err)
assert.Equal(t, res, bytes)
})
t.Run("Serialize Interop", func(t *testing.T) {
require.Panics(t, func() {
actual = s.serialize(ic, []stackitem.Item{stackitem.NewInterop("kek")})
})
})
t.Run("Serialize Array bad", func(t *testing.T) {
item := stackitem.NewArray([]stackitem.Item{stackitem.NewBool(true), stackitem.NewBool(true)})
item.Value().([]stackitem.Item)[1] = item
require.Panics(t, func() {
actual = s.serialize(ic, []stackitem.Item{item})
})
})
t.Run("Deserialize unknown", func(t *testing.T) {
data, err := stackitem.SerializeItem(stackitem.NewBigInteger(big.NewInt(123)))
require.NoError(t, err)
data[0] = 0xFF
require.Panics(t, func() {
actual = s.deserialize(ic, []stackitem.Item{stackitem.Make(data)})
})
})
t.Run("Deserialize not a byte array", func(t *testing.T) {
require.Panics(t, func() {
actual = s.deserialize(ic, []stackitem.Item{stackitem.NewInterop(nil)})
})
})
}
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func TestMemoryCompare(t *testing.T) {
s := newStd()
ic := &interop.Context{VM: vm.New()}
check := func(t *testing.T, result int64, s1, s2 string) {
actual := s.memoryCompare(ic, []stackitem.Item{stackitem.Make(s1), stackitem.Make(s2)})
require.Equal(t, big.NewInt(result), actual.Value())
}
check(t, -1, "a", "ab")
check(t, 1, "ab", "a")
check(t, 0, "ab", "ab")
check(t, -1, "", "a")
check(t, 0, "", "")
t.Run("C# compatibility", func(t *testing.T) {
// These tests are taken from C# node.
check(t, -1, "abc", "c")
check(t, -1, "abc", "d")
check(t, 0, "abc", "abc")
check(t, -1, "abc", "abcd")
})
t.Run("big arguments", func(t *testing.T) {
s1 := stackitem.Make(strings.Repeat("x", stdMaxInputLength+1))
s2 := stackitem.Make("xxx")
require.PanicsWithError(t, ErrTooBigInput.Error(),
func() { s.memoryCompare(ic, []stackitem.Item{s1, s2}) })
require.PanicsWithError(t, ErrTooBigInput.Error(),
func() { s.memoryCompare(ic, []stackitem.Item{s2, s1}) })
})
}
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func TestMemorySearch(t *testing.T) {
s := newStd()
ic := &interop.Context{VM: vm.New()}
check := func(t *testing.T, result int64, args ...interface{}) {
items := make([]stackitem.Item, len(args))
for i := range args {
items[i] = stackitem.Make(args[i])
}
var actual stackitem.Item
switch len(items) {
case 2:
actual = s.memorySearch2(ic, items)
case 3:
actual = s.memorySearch3(ic, items)
case 4:
actual = s.memorySearch4(ic, items)
default:
panic("invalid args length")
}
require.Equal(t, big.NewInt(result), actual.Value())
}
t.Run("C# compatibility", func(t *testing.T) {
// These tests are taken from C# node.
check(t, 2, "abc", "c", 0)
check(t, 2, "abc", "c", 1)
check(t, 2, "abc", "c", 2)
check(t, -1, "abc", "c", 3)
check(t, -1, "abc", "d", 0)
check(t, 2, "abc", "c", 0, false)
check(t, 2, "abc", "c", 1, false)
check(t, 2, "abc", "c", 2, false)
check(t, -1, "abc", "c", 3, false)
check(t, -1, "abc", "d", 0, false)
check(t, -1, "abc", "c", 0, true)
check(t, -1, "abc", "c", 1, true)
check(t, -1, "abc", "c", 2, true)
check(t, 2, "abc", "c", 3, true)
check(t, -1, "abc", "d", 0, true)
})
t.Run("boundary indices", func(t *testing.T) {
arg := stackitem.Make("aaa")
require.Panics(t, func() {
s.memorySearch3(ic, []stackitem.Item{arg, arg, stackitem.Make(-1)})
})
require.Panics(t, func() {
s.memorySearch3(ic, []stackitem.Item{arg, arg, stackitem.Make(4)})
})
t.Run("still in capacity", func(t *testing.T) {
require.Panics(t, func() {
arr := stackitem.NewByteArray(make([]byte, 5, 10))
s.memorySearch3(ic, []stackitem.Item{arr, arg, stackitem.Make(7)})
})
require.Panics(t, func() {
arr := stackitem.NewByteArray(make([]byte, 5, 10))
s.memorySearch4(ic, []stackitem.Item{arr, arg,
stackitem.Make(7), stackitem.Make(true)})
})
})
})
t.Run("big arguments", func(t *testing.T) {
s1 := stackitem.Make(strings.Repeat("x", stdMaxInputLength+1))
s2 := stackitem.Make("xxx")
start := stackitem.Make(1)
b := stackitem.Make(true)
require.PanicsWithError(t, ErrTooBigInput.Error(),
func() { s.memorySearch2(ic, []stackitem.Item{s1, s2}) })
require.PanicsWithError(t, ErrTooBigInput.Error(),
func() { s.memorySearch2(ic, []stackitem.Item{s2, s1}) })
require.PanicsWithError(t, ErrTooBigInput.Error(),
func() { s.memorySearch3(ic, []stackitem.Item{s1, s2, start}) })
require.PanicsWithError(t, ErrTooBigInput.Error(),
func() { s.memorySearch3(ic, []stackitem.Item{s2, s1, start}) })
require.PanicsWithError(t, ErrTooBigInput.Error(),
func() { s.memorySearch4(ic, []stackitem.Item{s1, s2, start, b}) })
require.PanicsWithError(t, ErrTooBigInput.Error(),
func() { s.memorySearch4(ic, []stackitem.Item{s2, s1, start, b}) })
})
}
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func TestStringSplit(t *testing.T) {
s := newStd()
ic := &interop.Context{VM: vm.New()}
check := func(t *testing.T, result []string, str, sep string, remove interface{}) {
args := []stackitem.Item{stackitem.Make(str), stackitem.Make(sep)}
var actual stackitem.Item
if remove == nil {
actual = s.stringSplit2(ic, args)
} else {
args = append(args, stackitem.NewBool(remove.(bool)))
actual = s.stringSplit3(ic, args)
}
arr, ok := actual.Value().([]stackitem.Item)
require.True(t, ok)
require.Equal(t, len(result), len(arr))
for i := range result {
require.Equal(t, stackitem.Make(result[i]), arr[i])
}
}
check(t, []string{"a", "b", "c"}, "abc", "", nil)
check(t, []string{"a", "b", "c"}, "abc", "", true)
check(t, []string{"a", "c", "", "", "d"}, "abcbbbd", "b", nil)
check(t, []string{"a", "c", "", "", "d"}, "abcbbbd", "b", false)
check(t, []string{"a", "c", "d"}, "abcbbbd", "b", true)
check(t, []string{""}, "", "abc", nil)
check(t, []string{}, "", "abc", true)
t.Run("C# compatibility", func(t *testing.T) {
// These tests are taken from C# node.
check(t, []string{"a", "b"}, "a,b", ",", nil)
})
t.Run("big arguments", func(t *testing.T) {
s1 := stackitem.Make(strings.Repeat("x", stdMaxInputLength+1))
s2 := stackitem.Make("xxx")
require.PanicsWithError(t, ErrTooBigInput.Error(),
func() { s.stringSplit2(ic, []stackitem.Item{s1, s2}) })
})
}