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99 lines
2.3 KiB
99 lines
2.3 KiB
package buf_test
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import (
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"bufio"
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"bytes"
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"crypto/rand"
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"io"
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"testing"
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"github.com/google/go-cmp/cmp"
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"github.com/xtls/xray-core/common"
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. "github.com/xtls/xray-core/common/buf"
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"github.com/xtls/xray-core/transport/pipe"
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)
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func TestWriter(t *testing.T) {
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lb := New()
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common.Must2(lb.ReadFrom(rand.Reader))
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expectedBytes := append([]byte(nil), lb.Bytes()...)
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writeBuffer := bytes.NewBuffer(make([]byte, 0, 1024*1024))
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writer := NewBufferedWriter(NewWriter(writeBuffer))
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writer.SetBuffered(false)
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common.Must(writer.WriteMultiBuffer(MultiBuffer{lb}))
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common.Must(writer.Flush())
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if r := cmp.Diff(expectedBytes, writeBuffer.Bytes()); r != "" {
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t.Error(r)
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}
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}
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func TestBytesWriterReadFrom(t *testing.T) {
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const size = 50000
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pReader, pWriter := pipe.New(pipe.WithSizeLimit(size))
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reader := bufio.NewReader(io.LimitReader(rand.Reader, size))
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writer := NewBufferedWriter(pWriter)
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writer.SetBuffered(false)
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nBytes, err := reader.WriteTo(writer)
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if nBytes != size {
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t.Fatal("unexpected size of bytes written: ", nBytes)
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}
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if err != nil {
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t.Fatal("expect success, but actually error: ", err.Error())
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}
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mb, err := pReader.ReadMultiBuffer()
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common.Must(err)
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if mb.Len() != size {
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t.Fatal("unexpected size read: ", mb.Len())
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}
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}
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func TestDiscardBytes(t *testing.T) {
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b := New()
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common.Must2(b.ReadFullFrom(rand.Reader, Size))
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nBytes, err := io.Copy(DiscardBytes, b)
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common.Must(err)
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if nBytes != Size {
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t.Error("copy size: ", nBytes)
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}
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}
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func TestDiscardBytesMultiBuffer(t *testing.T) {
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const size = 10240*1024 + 1
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buffer := bytes.NewBuffer(make([]byte, 0, size))
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common.Must2(buffer.ReadFrom(io.LimitReader(rand.Reader, size)))
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r := NewReader(buffer)
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nBytes, err := io.Copy(DiscardBytes, &BufferedReader{Reader: r})
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common.Must(err)
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if nBytes != size {
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t.Error("copy size: ", nBytes)
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}
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}
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func TestWriterInterface(t *testing.T) {
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{
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var writer interface{} = (*BufferToBytesWriter)(nil)
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switch writer.(type) {
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case Writer, io.Writer, io.ReaderFrom:
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default:
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t.Error("BufferToBytesWriter is not Writer, io.Writer or io.ReaderFrom")
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}
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}
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{
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var writer interface{} = (*BufferedWriter)(nil)
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switch writer.(type) {
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case Writer, io.Writer, io.ReaderFrom, io.ByteWriter:
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default:
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t.Error("BufferedWriter is not Writer, io.Writer, io.ReaderFrom or io.ByteWriter")
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}
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}
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}
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