package kcp_test import ( "testing" "github.com/google/go-cmp/cmp" "github.com/google/go-cmp/cmp/cmpopts" . "github.com/v2fly/v2ray-core/v5/transport/internet/kcp" ) func TestBadSegment(t *testing.T) { seg, buf := ReadSegment(nil) if seg != nil { t.Error("non-nil seg") } if len(buf) != 0 { t.Error("buf len: ", len(buf)) } } func TestDataSegment(t *testing.T) { seg := &DataSegment{ Conv: 1, Timestamp: 3, Number: 4, SendingNext: 5, } seg.Data().Write([]byte{'a', 'b', 'c', 'd'}) nBytes := seg.ByteSize() bytes := make([]byte, nBytes) seg.Serialize(bytes) iseg, _ := ReadSegment(bytes) seg2 := iseg.(*DataSegment) if r := cmp.Diff(seg2, seg, cmpopts.IgnoreUnexported(DataSegment{})); r != "" { t.Error(r) } if r := cmp.Diff(seg2.Data().Bytes(), seg.Data().Bytes()); r != "" { t.Error(r) } } func Test1ByteDataSegment(t *testing.T) { seg := &DataSegment{ Conv: 1, Timestamp: 3, Number: 4, SendingNext: 5, } seg.Data().WriteByte('a') nBytes := seg.ByteSize() bytes := make([]byte, nBytes) seg.Serialize(bytes) iseg, _ := ReadSegment(bytes) seg2 := iseg.(*DataSegment) if r := cmp.Diff(seg2, seg, cmpopts.IgnoreUnexported(DataSegment{})); r != "" { t.Error(r) } if r := cmp.Diff(seg2.Data().Bytes(), seg.Data().Bytes()); r != "" { t.Error(r) } } func TestACKSegment(t *testing.T) { seg := &AckSegment{ Conv: 1, ReceivingWindow: 2, ReceivingNext: 3, Timestamp: 10, NumberList: []uint32{1, 3, 5, 7, 9}, } nBytes := seg.ByteSize() bytes := make([]byte, nBytes) seg.Serialize(bytes) iseg, _ := ReadSegment(bytes) seg2 := iseg.(*AckSegment) if r := cmp.Diff(seg2, seg); r != "" { t.Error(r) } } func TestCmdSegment(t *testing.T) { seg := &CmdOnlySegment{ Conv: 1, Cmd: CommandPing, Option: SegmentOptionClose, SendingNext: 11, ReceivingNext: 13, PeerRTO: 15, } nBytes := seg.ByteSize() bytes := make([]byte, nBytes) seg.Serialize(bytes) iseg, _ := ReadSegment(bytes) seg2 := iseg.(*CmdOnlySegment) if r := cmp.Diff(seg2, seg); r != "" { t.Error(r) } }