fix bug for encTypeInt32 (#148)

* fix bug for encTypeInt32

* modify go.mod

* add assert

* compare the response

encode.go

@@ -126,6 +126,11 @@ func (e *Encoder) Encode(v interface{}) error {
 	case map[interface{}]interface{}:
 		return e.encUntypedMap(val)
 
+	case POJOEnum:
+		if p, ok := v.(POJOEnum); ok {
+			return e.encObject(p)
+		}
+
 	default:
 		t := UnpackPtrType(reflect.TypeOf(v))
 		switch t.Kind() {
@@ -168,9 +173,6 @@ func (e *Encoder) Encode(v interface{}) error {
 				return err
 			}
 		default:
-			if p, ok := v.(POJOEnum); ok { // JavaEnum
-				return e.encObject(p)
-			}
 			return perrors.Errorf("type not supported! %s", t.Kind().String())
 		}
 	}

int.go

@@ -109,7 +109,7 @@ func (d *Decoder) decInt32(flag int32) (int32, error) {
 
 func (d *Encoder) encTypeInt32(b []byte, p interface{}) ([]byte, error) {
 	value := reflect.ValueOf(p)
-	if value.IsNil() {
+	if PackPtr(value).IsNil() {
 		return encNull(b), nil
 	}
 	value = UnpackPtrValue(value)

int_test.go

@@ -18,6 +18,7 @@
 package hessian
 
 import (
+	"github.com/stretchr/testify/assert"
 	"testing"
 )
 
@@ -39,6 +40,7 @@ func TestEncInt32Len1B(t *testing.T) {
 	}
 	d = NewDecoder(e.Buffer())
 	res, err = d.Decode()
+	assert.Equal(t, v, res)
 	t.Logf("decode(%v) = %v, %v\n", v, res, err)
 }
 
@@ -60,9 +62,34 @@ func TestEncInt32Len2B(t *testing.T) {
 	t.Logf("%#v\n", e.buffer)
 	d = NewDecoder(e.Buffer())
 	res, err = d.Decode()
+	assert.Nil(t, err)
+	assert.Equal(t, v, res)
 	t.Logf("decode(%#x) = %#x, %v\n", v, res, err)
 }
 
+func TestEncInt32ForAlias(t *testing.T) {
+	var (
+		v   JavaEnum
+		err error
+		e   *Encoder
+		d   *Decoder
+		res interface{}
+	)
+
+	v = 0xe6
+	// var v int32 = 0xf016
+	e = NewEncoder()
+	e.Encode(v)
+	if len(e.Buffer()) == 0 {
+		t.Fail()
+	}
+	d = NewDecoder(e.Buffer())
+	res, err = d.Decode()
+	assert.Nil(t, err)
+	assert.Equal(t, int32(v), res)
+	t.Logf("decode(%v) = %v, %v\n", v, res, err)
+}
+
 func TestEncInt32Len4B(t *testing.T) {
 	var (
 		v   int32
@@ -81,6 +108,7 @@ func TestEncInt32Len4B(t *testing.T) {
 
 	d = NewDecoder(e.Buffer())
 	res, err = d.Decode()
+	assert.Nil(t, err)
 	t.Logf("decode(%v) = %v, %v\n", v, res, err)
 }