// Copyright (C) 2014 Nippon Telegraph and Telephone Corporation.
//
// 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 table

import (
	"github.com/osrg/gobgp/packet/bgp"
	"github.com/stretchr/testify/assert"
	"testing"
	"time"
)

// before:
//  as-path  : 65000, 4000, 400000, 300000, 40001
// expected result:
//  as-path  : 65000, 4000, 23456, 23456, 40001
//  as4-path : 65000, 4000, 400000, 300000, 40001
func TestAsPathAs2Trans1(t *testing.T) {
	as := []uint32{65000, 4000, 400000, 300000, 40001}
	params := []bgp.AsPathParamInterface{bgp.NewAs4PathParam(bgp.BGP_ASPATH_ATTR_TYPE_SEQ, as)}
	aspath := bgp.NewPathAttributeAsPath(params)
	msg := bgp.NewBGPUpdateMessage(nil, []bgp.PathAttributeInterface{aspath}, nil).Body.(*bgp.BGPUpdate)
	UpdatePathAttrs2ByteAs(msg)
	assert.Equal(t, len(msg.PathAttributes), 2)
	assert.Equal(t, len(msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value), 1)
	assert.Equal(t, len(msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.AsPathParam).AS), 5)
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.AsPathParam).AS[0], uint16(65000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.AsPathParam).AS[1], uint16(4000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.AsPathParam).AS[2], uint16(bgp.AS_TRANS))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.AsPathParam).AS[3], uint16(bgp.AS_TRANS))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.AsPathParam).AS[4], uint16(40001))
	assert.Equal(t, len(msg.PathAttributes[1].(*bgp.PathAttributeAs4Path).Value), 1)
	assert.Equal(t, len(msg.PathAttributes[1].(*bgp.PathAttributeAs4Path).Value[0].AS), 5)
	assert.Equal(t, msg.PathAttributes[1].(*bgp.PathAttributeAs4Path).Value[0].AS[0], uint32(65000))
	assert.Equal(t, msg.PathAttributes[1].(*bgp.PathAttributeAs4Path).Value[0].AS[1], uint32(4000))
	assert.Equal(t, msg.PathAttributes[1].(*bgp.PathAttributeAs4Path).Value[0].AS[2], uint32(400000))
	assert.Equal(t, msg.PathAttributes[1].(*bgp.PathAttributeAs4Path).Value[0].AS[3], uint32(300000))
	assert.Equal(t, msg.PathAttributes[1].(*bgp.PathAttributeAs4Path).Value[0].AS[4], uint32(40001))
}

// before:
//  as-path  : 65000, 4000, 40000, 30000, 40001
// expected result:
//  as-path  : 65000, 4000, 40000, 30000, 40001
func TestAsPathAs2Trans2(t *testing.T) {
	as := []uint32{65000, 4000, 40000, 30000, 40001}
	params := []bgp.AsPathParamInterface{bgp.NewAs4PathParam(bgp.BGP_ASPATH_ATTR_TYPE_SEQ, as)}
	aspath := bgp.NewPathAttributeAsPath(params)
	msg := bgp.NewBGPUpdateMessage(nil, []bgp.PathAttributeInterface{aspath}, nil).Body.(*bgp.BGPUpdate)
	UpdatePathAttrs2ByteAs(msg)
	assert.Equal(t, len(msg.PathAttributes), 1)
	assert.Equal(t, len(msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value), 1)
	assert.Equal(t, len(msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.AsPathParam).AS), 5)
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.AsPathParam).AS[0], uint16(65000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.AsPathParam).AS[1], uint16(4000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.AsPathParam).AS[2], uint16(40000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.AsPathParam).AS[3], uint16(30000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.AsPathParam).AS[4], uint16(40001))
}

// before:
//  as-path  : 65000, 4000, 23456, 23456, 40001
//  as4-path : 400000, 300000, 40001
// expected result:
//  as-path  : 65000, 4000, 400000, 300000, 40001
func TestAsPathAs4Trans1(t *testing.T) {
	as := []uint16{65000, 4000, bgp.AS_TRANS, bgp.AS_TRANS, 40001}
	params := []bgp.AsPathParamInterface{bgp.NewAsPathParam(bgp.BGP_ASPATH_ATTR_TYPE_SEQ, as)}
	aspath := bgp.NewPathAttributeAsPath(params)

	as4 := []uint32{400000, 300000, 40001}
	param4s := []*bgp.As4PathParam{bgp.NewAs4PathParam(bgp.BGP_ASPATH_ATTR_TYPE_SEQ, as4)}
	as4path := bgp.NewPathAttributeAs4Path(param4s)
	msg := bgp.NewBGPUpdateMessage(nil, []bgp.PathAttributeInterface{aspath, as4path}, nil).Body.(*bgp.BGPUpdate)
	UpdatePathAttrs4ByteAs(msg)
	assert.Equal(t, len(msg.PathAttributes), 1)
	assert.Equal(t, len(msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value), 1)
	assert.Equal(t, len(msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS), 5)
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[0], uint32(65000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[1], uint32(4000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[2], uint32(400000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[3], uint32(300000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[4], uint32(40001))
}

// before:
//  as-path  : 65000, 4000, {10, 20, 30}, 23456, 23456, 40001
//  as4-path : 400000, 300000, 40001
// expected result:
//  as-path  : 65000, 4000, {10, 20, 30}, 400000, 300000, 40001
func TestAsPathAs4Trans2(t *testing.T) {
	as1 := []uint16{65000, 4000}
	param1 := bgp.NewAsPathParam(bgp.BGP_ASPATH_ATTR_TYPE_SEQ, as1)
	as2 := []uint16{10, 20, 30}
	param2 := bgp.NewAsPathParam(bgp.BGP_ASPATH_ATTR_TYPE_SET, as2)
	as3 := []uint16{bgp.AS_TRANS, bgp.AS_TRANS, 40001}
	param3 := bgp.NewAsPathParam(bgp.BGP_ASPATH_ATTR_TYPE_SEQ, as3)
	params := []bgp.AsPathParamInterface{param1, param2, param3}
	aspath := bgp.NewPathAttributeAsPath(params)

	as4 := []uint32{400000, 300000, 40001}
	param4s := []*bgp.As4PathParam{bgp.NewAs4PathParam(bgp.BGP_ASPATH_ATTR_TYPE_SEQ, as4)}
	as4path := bgp.NewPathAttributeAs4Path(param4s)
	msg := bgp.NewBGPUpdateMessage(nil, []bgp.PathAttributeInterface{aspath, as4path}, nil).Body.(*bgp.BGPUpdate)
	UpdatePathAttrs4ByteAs(msg)
	assert.Equal(t, len(msg.PathAttributes), 1)
	assert.Equal(t, len(msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value), 3)
	assert.Equal(t, len(msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS), 2)
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[0], uint32(65000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[1], uint32(4000))
	assert.Equal(t, len(msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[1].(*bgp.As4PathParam).AS), 3)
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[1].(*bgp.As4PathParam).AS[0], uint32(10))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[1].(*bgp.As4PathParam).AS[1], uint32(20))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[1].(*bgp.As4PathParam).AS[2], uint32(30))
	assert.Equal(t, len(msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[2].(*bgp.As4PathParam).AS), 3)
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[2].(*bgp.As4PathParam).AS[0], uint32(400000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[2].(*bgp.As4PathParam).AS[1], uint32(300000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[2].(*bgp.As4PathParam).AS[2], uint32(40001))
}

// before:
//  as-path  : 65000, 4000, {10, 20, 30}, 23456, 23456, 40001
//  as4-path : 3000, 400000, 300000, 40001
// expected result:
//  as-path  : 65000, 4000, 3000, 400000, 300000, 40001
func TestAsPathAs4Trans3(t *testing.T) {
	as1 := []uint16{65000, 4000}
	param1 := bgp.NewAsPathParam(bgp.BGP_ASPATH_ATTR_TYPE_SEQ, as1)
	as2 := []uint16{10, 20, 30}
	param2 := bgp.NewAsPathParam(bgp.BGP_ASPATH_ATTR_TYPE_SET, as2)
	as3 := []uint16{bgp.AS_TRANS, bgp.AS_TRANS, 40001}
	param3 := bgp.NewAsPathParam(bgp.BGP_ASPATH_ATTR_TYPE_SEQ, as3)
	params := []bgp.AsPathParamInterface{param1, param2, param3}
	aspath := bgp.NewPathAttributeAsPath(params)

	as4 := []uint32{3000, 400000, 300000, 40001}
	param4s := []*bgp.As4PathParam{bgp.NewAs4PathParam(bgp.BGP_ASPATH_ATTR_TYPE_SEQ, as4)}
	as4path := bgp.NewPathAttributeAs4Path(param4s)
	msg := bgp.NewBGPUpdateMessage(nil, []bgp.PathAttributeInterface{aspath, as4path}, nil).Body.(*bgp.BGPUpdate)
	UpdatePathAttrs4ByteAs(msg)
	assert.Equal(t, len(msg.PathAttributes), 1)
	assert.Equal(t, len(msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value), 1)
	assert.Equal(t, len(msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS), 6)
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[0], uint32(65000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[1], uint32(4000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[2], uint32(3000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[3], uint32(400000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[4], uint32(300000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[5], uint32(40001))
}

// before:
//  as-path  : 65000, 4000, 23456, 23456, 40001
//  as4-path : 400000, 300000, 40001, {10, 20, 30}
// expected result:
//  as-path  : 65000, 400000, 300000, 40001, {10, 20, 30}
func TestAsPathAs4Trans4(t *testing.T) {
	as := []uint16{65000, 4000, bgp.AS_TRANS, bgp.AS_TRANS, 40001}
	params := []bgp.AsPathParamInterface{bgp.NewAsPathParam(bgp.BGP_ASPATH_ATTR_TYPE_SEQ, as)}
	aspath := bgp.NewPathAttributeAsPath(params)

	as4 := []uint32{400000, 300000, 40001}
	as4param1 := bgp.NewAs4PathParam(bgp.BGP_ASPATH_ATTR_TYPE_SEQ, as4)
	as5 := []uint32{10, 20, 30}
	as4param2 := bgp.NewAs4PathParam(bgp.BGP_ASPATH_ATTR_TYPE_SET, as5)
	param4s := []*bgp.As4PathParam{as4param1, as4param2}
	as4path := bgp.NewPathAttributeAs4Path(param4s)
	msg := bgp.NewBGPUpdateMessage(nil, []bgp.PathAttributeInterface{aspath, as4path}, nil).Body.(*bgp.BGPUpdate)
	UpdatePathAttrs4ByteAs(msg)
	assert.Equal(t, len(msg.PathAttributes), 1)
	assert.Equal(t, len(msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value), 2)
	assert.Equal(t, len(msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS), 4)
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[0], uint32(65000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[1], uint32(400000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[2], uint32(300000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[3], uint32(40001))
	assert.Equal(t, len(msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[1].(*bgp.As4PathParam).AS), 3)
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[1].(*bgp.As4PathParam).AS[0], uint32(10))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[1].(*bgp.As4PathParam).AS[1], uint32(20))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[1].(*bgp.As4PathParam).AS[2], uint32(30))
}

// before:
//  as-path  : 65000, 4000, 23456, 23456, 40001
//  as4-path : {10, 20, 30} 400000, 300000, 40001
// expected result:
//  as-path  : 65000, {10, 20, 30}, 400000, 300000, 40001
func TestAsPathAs4Trans5(t *testing.T) {
	as := []uint16{65000, 4000, bgp.AS_TRANS, bgp.AS_TRANS, 40001}
	params := []bgp.AsPathParamInterface{bgp.NewAsPathParam(bgp.BGP_ASPATH_ATTR_TYPE_SEQ, as)}
	aspath := bgp.NewPathAttributeAsPath(params)

	as4 := []uint32{400000, 300000, 40001}
	as4param1 := bgp.NewAs4PathParam(bgp.BGP_ASPATH_ATTR_TYPE_SEQ, as4)
	as5 := []uint32{10, 20, 30}
	as4param2 := bgp.NewAs4PathParam(bgp.BGP_ASPATH_ATTR_TYPE_SET, as5)
	param4s := []*bgp.As4PathParam{as4param2, as4param1}
	as4path := bgp.NewPathAttributeAs4Path(param4s)
	msg := bgp.NewBGPUpdateMessage(nil, []bgp.PathAttributeInterface{aspath, as4path}, nil).Body.(*bgp.BGPUpdate)
	UpdatePathAttrs4ByteAs(msg)
	assert.Equal(t, len(msg.PathAttributes), 1)
	assert.Equal(t, len(msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value), 3)
	assert.Equal(t, len(msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS), 1)
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[0], uint32(65000))
	assert.Equal(t, len(msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[1].(*bgp.As4PathParam).AS), 3)
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[1].(*bgp.As4PathParam).AS[0], uint32(10))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[1].(*bgp.As4PathParam).AS[1], uint32(20))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[1].(*bgp.As4PathParam).AS[2], uint32(30))
	assert.Equal(t, len(msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[2].(*bgp.As4PathParam).AS), 3)
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[2].(*bgp.As4PathParam).AS[0], uint32(400000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[2].(*bgp.As4PathParam).AS[1], uint32(300000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[2].(*bgp.As4PathParam).AS[2], uint32(40001))
}

// before:
//  as-path  : 65000, 4000, 23456, 23456, 40001
//  as4-path : 100000, 65000, 4000, 400000, 300000, 40001
// expected result:
//  as-path  : 65000, 4000, 23456, 23456, 40001
func TestAsPathAs4TransInvalid1(t *testing.T) {
	as := []uint16{65000, 4000, bgp.AS_TRANS, bgp.AS_TRANS, 40001}
	params := []bgp.AsPathParamInterface{bgp.NewAsPathParam(bgp.BGP_ASPATH_ATTR_TYPE_SEQ, as)}
	aspath := bgp.NewPathAttributeAsPath(params)

	as4 := []uint32{100000, 65000, 4000, 400000, 300000, 40001}
	as4param1 := bgp.NewAs4PathParam(bgp.BGP_ASPATH_ATTR_TYPE_SEQ, as4)
	param4s := []*bgp.As4PathParam{as4param1}
	as4path := bgp.NewPathAttributeAs4Path(param4s)
	msg := bgp.NewBGPUpdateMessage(nil, []bgp.PathAttributeInterface{aspath, as4path}, nil).Body.(*bgp.BGPUpdate)
	UpdatePathAttrs4ByteAs(msg)
	assert.Equal(t, len(msg.PathAttributes), 1)
	assert.Equal(t, len(msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value), 1)
	assert.Equal(t, len(msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS), 5)
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[0], uint32(65000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[1], uint32(4000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[2], uint32(bgp.AS_TRANS))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[3], uint32(bgp.AS_TRANS))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[4], uint32(40001))
}

// before:
//  as-path  : 65000, 4000, 23456, 23456, 40001
//  as4-path : 300000, 40001
// expected result:
//  as-path  : 65000, 4000, 23456, 300000, 40001
func TestAsPathAs4TransInvalid2(t *testing.T) {
	as := []uint16{65000, 4000, bgp.AS_TRANS, bgp.AS_TRANS, 40001}
	params := []bgp.AsPathParamInterface{bgp.NewAsPathParam(bgp.BGP_ASPATH_ATTR_TYPE_SEQ, as)}
	aspath := bgp.NewPathAttributeAsPath(params)

	as4 := []uint32{300000, 40001}
	as4param1 := bgp.NewAs4PathParam(bgp.BGP_ASPATH_ATTR_TYPE_SEQ, as4)
	param4s := []*bgp.As4PathParam{as4param1}
	as4path := bgp.NewPathAttributeAs4Path(param4s)
	msg := bgp.NewBGPUpdateMessage(nil, []bgp.PathAttributeInterface{aspath, as4path}, nil).Body.(*bgp.BGPUpdate)
	UpdatePathAttrs4ByteAs(msg)
	assert.Equal(t, len(msg.PathAttributes), 1)
	assert.Equal(t, len(msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value), 1)
	assert.Equal(t, len(msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS), 5)
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[0], uint32(65000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[1], uint32(4000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[2], uint32(bgp.AS_TRANS))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[3], uint32(300000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[4], uint32(40001))
}

// before:
//  as-path  : 65000, 4000, 23456, 23456, 40001
//  as4-path : nil
// expected result:
//  as-path  : 65000, 4000, 23456, 23456, 40001
func TestAsPathAs4TransInvalid3(t *testing.T) {
	as := []uint16{65000, 4000, bgp.AS_TRANS, bgp.AS_TRANS, 40001}
	params := []bgp.AsPathParamInterface{bgp.NewAsPathParam(bgp.BGP_ASPATH_ATTR_TYPE_SEQ, as)}
	aspath := bgp.NewPathAttributeAsPath(params)

	msg := bgp.NewBGPUpdateMessage(nil, []bgp.PathAttributeInterface{aspath}, nil).Body.(*bgp.BGPUpdate)
	UpdatePathAttrs4ByteAs(msg)
	assert.Equal(t, len(msg.PathAttributes), 1)
	assert.Equal(t, len(msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value), 1)
	assert.Equal(t, len(msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS), 5)
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[0], uint32(65000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[1], uint32(4000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[2], uint32(bgp.AS_TRANS))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[3], uint32(bgp.AS_TRANS))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[4], uint32(40001))
}

// before:
//  as-path  : 65000, 4000, 23456, 23456, 40001
//  as4-path : empty
// expected result:
//  as-path  : 65000, 4000, 23456, 23456, 40001
func TestAsPathAs4TransInvalid4(t *testing.T) {
	as := []uint16{65000, 4000, bgp.AS_TRANS, bgp.AS_TRANS, 40001}
	params := []bgp.AsPathParamInterface{bgp.NewAsPathParam(bgp.BGP_ASPATH_ATTR_TYPE_SEQ, as)}
	aspath := bgp.NewPathAttributeAsPath(params)

	as4 := []uint32{}
	as4param1 := bgp.NewAs4PathParam(bgp.BGP_ASPATH_ATTR_TYPE_SEQ, as4)
	param4s := []*bgp.As4PathParam{as4param1}
	as4path := bgp.NewPathAttributeAs4Path(param4s)
	msg := bgp.NewBGPUpdateMessage(nil, []bgp.PathAttributeInterface{aspath, as4path}, nil).Body.(*bgp.BGPUpdate)
	UpdatePathAttrs4ByteAs(msg)
	assert.Equal(t, len(msg.PathAttributes), 1)
	assert.Equal(t, len(msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value), 1)
	assert.Equal(t, len(msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS), 5)
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[0], uint32(65000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[1], uint32(4000))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[2], uint32(bgp.AS_TRANS))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[3], uint32(bgp.AS_TRANS))
	assert.Equal(t, msg.PathAttributes[0].(*bgp.PathAttributeAsPath).Value[0].(*bgp.As4PathParam).AS[4], uint32(40001))
}

func TestBMP(t *testing.T) {
	aspath1 := []bgp.AsPathParamInterface{
		bgp.NewAs4PathParam(2, []uint32{1000000}),
		bgp.NewAs4PathParam(1, []uint32{1000001, 1002}),
		bgp.NewAs4PathParam(2, []uint32{1003, 100004}),
	}
	mp_nlri := []bgp.AddrPrefixInterface{bgp.NewIPv6AddrPrefix(100,
		"fe80:1234:1234:5667:8967:af12:8912:1023")}

	p := []bgp.PathAttributeInterface{
		bgp.NewPathAttributeOrigin(3),
		bgp.NewPathAttributeAsPath(aspath1),
		bgp.NewPathAttributeMpUnreachNLRI(mp_nlri),
	}
	w := []*bgp.IPAddrPrefix{}
	n := []*bgp.IPAddrPrefix{}

	msg := bgp.NewBGPUpdateMessage(w, p, n)
	pList := ProcessMessage(msg, peerR1(), time.Now())
	CreateUpdateMsgFromPaths(pList)
}