// +build linux package tcp_test import ( "context" "testing" "v2ray.com/core/testing/assert" "v2ray.com/core/testing/servers/tcp" . "v2ray.com/core/transport/internet/tcp" ) func TestGetOriginalDestination(t *testing.T) { assert := assert.On(t) tcpServer := tcp.Server{} dest, err := tcpServer.Start() assert.Error(err).IsNil() defer tcpServer.Close() conn, err := Dial(context.Background(), dest) assert.Error(err).IsNil() defer conn.Close() _, err := GetOriginalDestination(conn) assert.String(err.Error()).Contains("failed to call getsockopt") }