start refactoring

models/msg/pack_test.go

@@ -0,0 +1,86 @@
+// Copyright 2016 fatedier, fatedier@gmail.com
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package msg
+
+import (
+	"bytes"
+	"encoding/binary"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+
+	"github.com/fatedier/frp/utils/errors"
+)
+
+type TestStruct struct{}
+
+func TestPack(t *testing.T) {
+	assert := assert.New(t)
+
+	var (
+		msg    Message
+		buffer []byte
+		err    error
+	)
+
+	// error type
+	msg = &TestStruct{}
+	buffer, err = Pack(msg)
+	assert.Error(err, errors.ErrMsgType.Error())
+
+	// correct
+	msg = &Ping{}
+	buffer, err = Pack(msg)
+	assert.NoError(err)
+	b := bytes.NewBuffer(nil)
+	b.WriteByte(TypePing)
+	binary.Write(b, binary.BigEndian, int64(2))
+	b.WriteString("{}")
+	assert.True(bytes.Equal(b.Bytes(), buffer))
+}
+
+func TestUnPack(t *testing.T) {
+	assert := assert.New(t)
+
+	var (
+		msg Message
+		err error
+	)
+
+	// error message type
+	msg, err = UnPack('-', []byte("{}"))
+	assert.Error(err)
+
+	// correct
+	msg, err = UnPack(TypePong, []byte("{}"))
+	assert.NoError(err)
+	assert.Equal(getTypeFn(msg), getTypeFn((*Pong)(nil)))
+}
+
+func TestUnPackInto(t *testing.T) {
+	assert := assert.New(t)
+
+	var err error
+
+	// correct type
+	pongMsg := &Pong{}
+	err = UnPackInto([]byte("{}"), pongMsg)
+	assert.NoError(err)
+
+	// wrong type
+	loginMsg := &Login{}
+	err = UnPackInto([]byte(`{"version": 123}`), loginMsg)
+	assert.Error(err)
+}