Xray-core/common/buf/reader_test.go

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2020-11-25 13:01:53 +02:00
package buf_test
import (
"bytes"
"io"
"strings"
"testing"
"github.com/xtls/xray-core/v1/common"
. "github.com/xtls/xray-core/v1/common/buf"
"github.com/xtls/xray-core/v1/transport/pipe"
)
func TestBytesReaderWriteTo(t *testing.T) {
pReader, pWriter := pipe.New(pipe.WithSizeLimit(1024))
reader := &BufferedReader{Reader: pReader}
b1 := New()
b1.WriteString("abc")
b2 := New()
b2.WriteString("efg")
common.Must(pWriter.WriteMultiBuffer(MultiBuffer{b1, b2}))
pWriter.Close()
pReader2, pWriter2 := pipe.New(pipe.WithSizeLimit(1024))
writer := NewBufferedWriter(pWriter2)
writer.SetBuffered(false)
nBytes, err := io.Copy(writer, reader)
common.Must(err)
if nBytes != 6 {
t.Error("copy: ", nBytes)
}
mb, err := pReader2.ReadMultiBuffer()
common.Must(err)
if s := mb.String(); s != "abcefg" {
t.Error("content: ", s)
}
}
func TestBytesReaderMultiBuffer(t *testing.T) {
pReader, pWriter := pipe.New(pipe.WithSizeLimit(1024))
reader := &BufferedReader{Reader: pReader}
b1 := New()
b1.WriteString("abc")
b2 := New()
b2.WriteString("efg")
common.Must(pWriter.WriteMultiBuffer(MultiBuffer{b1, b2}))
pWriter.Close()
mbReader := NewReader(reader)
mb, err := mbReader.ReadMultiBuffer()
common.Must(err)
if s := mb.String(); s != "abcefg" {
t.Error("content: ", s)
}
}
func TestReadByte(t *testing.T) {
sr := strings.NewReader("abcd")
reader := &BufferedReader{
Reader: NewReader(sr),
}
b, err := reader.ReadByte()
common.Must(err)
if b != 'a' {
t.Error("unexpected byte: ", b, " want a")
}
if reader.BufferedBytes() != 3 { // 3 bytes left in buffer
t.Error("unexpected buffered Bytes: ", reader.BufferedBytes())
}
nBytes, err := reader.WriteTo(DiscardBytes)
common.Must(err)
if nBytes != 3 {
t.Error("unexpect bytes written: ", nBytes)
}
}
func TestReadBuffer(t *testing.T) {
{
sr := strings.NewReader("abcd")
buf, err := ReadBuffer(sr)
common.Must(err)
if s := buf.String(); s != "abcd" {
t.Error("unexpected str: ", s, " want abcd")
}
buf.Release()
}
}
func TestReadAtMost(t *testing.T) {
sr := strings.NewReader("abcd")
reader := &BufferedReader{
Reader: NewReader(sr),
}
mb, err := reader.ReadAtMost(3)
common.Must(err)
if s := mb.String(); s != "abc" {
t.Error("unexpected read result: ", s)
}
nBytes, err := reader.WriteTo(DiscardBytes)
common.Must(err)
if nBytes != 1 {
t.Error("unexpect bytes written: ", nBytes)
}
}
func TestPacketReader_ReadMultiBuffer(t *testing.T) {
const alpha = "abcefg"
buf := bytes.NewBufferString(alpha)
reader := &PacketReader{buf}
mb, err := reader.ReadMultiBuffer()
common.Must(err)
if s := mb.String(); s != alpha {
t.Error("content: ", s)
}
}
func TestReaderInterface(t *testing.T) {
_ = (io.Reader)(new(ReadVReader))
_ = (Reader)(new(ReadVReader))
_ = (Reader)(new(BufferedReader))
_ = (io.Reader)(new(BufferedReader))
_ = (io.ByteReader)(new(BufferedReader))
_ = (io.WriterTo)(new(BufferedReader))
}