v1.0.0

transport/internet/kcp/segment_test.go

@@ -0,0 +1,107 @@
+package kcp_test
+
+import (
+	"testing"
+
+	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp/cmpopts"
+
+	. "github.com/xtls/xray-core/v1/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)
+	}
+}