neoneo-go/pkg/core/interop/binary/encode_test.go

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package binary
import (
"encoding/base64"
"math/big"
"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/require"
)
func TestRuntimeSerialize(t *testing.T) {
t.Run("recursive", func(t *testing.T) {
arr := stackitem.NewArray(nil)
arr.Append(arr)
ic := &interop.Context{VM: vm.New()}
ic.VM.Estack().PushVal(arr)
require.Error(t, Serialize(ic))
})
t.Run("big item", func(t *testing.T) {
ic := &interop.Context{VM: vm.New()}
ic.VM.Estack().PushVal(make([]byte, stackitem.MaxSize))
require.Error(t, Serialize(ic))
})
t.Run("good", func(t *testing.T) {
ic := &interop.Context{VM: vm.New()}
ic.VM.Estack().PushVal(42)
require.NoError(t, Serialize(ic))
w := io.NewBufBinWriter()
stackitem.EncodeBinaryStackItem(stackitem.Make(42), w.BinWriter)
require.NoError(t, w.Err)
encoded := w.Bytes()
require.Equal(t, encoded, ic.VM.Estack().Pop().Bytes())
ic.VM.Estack().PushVal(encoded)
require.NoError(t, Deserialize(ic))
require.Equal(t, big.NewInt(42), ic.VM.Estack().Pop().BigInt())
t.Run("bad", func(t *testing.T) {
encoded[0] ^= 0xFF
ic.VM.Estack().PushVal(encoded)
require.Error(t, Deserialize(ic))
})
})
}
func TestRuntimeEncodeDecode(t *testing.T) {
original := []byte("my pretty string")
encoded64 := base64.StdEncoding.EncodeToString(original)
encoded58 := base58.Encode(original)
v := vm.New()
ic := &interop.Context{VM: v}
t.Run("Encode64", func(t *testing.T) {
v.Estack().PushVal(original)
require.NoError(t, EncodeBase64(ic))
actual := v.Estack().Pop().Bytes()
require.Equal(t, []byte(encoded64), actual)
})
t.Run("Encode58", func(t *testing.T) {
v.Estack().PushVal(original)
require.NoError(t, EncodeBase58(ic))
actual := v.Estack().Pop().Bytes()
require.Equal(t, []byte(encoded58), actual)
})
t.Run("Decode64/positive", func(t *testing.T) {
v.Estack().PushVal(encoded64)
require.NoError(t, DecodeBase64(ic))
actual := v.Estack().Pop().Bytes()
require.Equal(t, original, actual)
})
t.Run("Decode64/error", func(t *testing.T) {
v.Estack().PushVal(encoded64 + "%")
require.Error(t, DecodeBase64(ic))
})
t.Run("Decode58/positive", func(t *testing.T) {
v.Estack().PushVal(encoded58)
require.NoError(t, DecodeBase58(ic))
actual := v.Estack().Pop().Bytes()
require.Equal(t, original, actual)
})
t.Run("Decode58/error", func(t *testing.T) {
v.Estack().PushVal(encoded58 + "%")
require.Error(t, DecodeBase58(ic))
})
}