package pipe_test import ( "errors" "io" "testing" "time" "github.com/google/go-cmp/cmp" "golang.org/x/sync/errgroup" "v2ray.com/core/common" "v2ray.com/core/common/buf" . "v2ray.com/core/transport/pipe" ) func TestPipeReadWrite(t *testing.T) { pReader, pWriter := New(WithSizeLimit(1024)) b := buf.New() b.WriteString("abcd") common.Must(pWriter.WriteMultiBuffer(buf.MultiBuffer{b})) b2 := buf.New() b2.WriteString("efg") common.Must(pWriter.WriteMultiBuffer(buf.MultiBuffer{b2})) rb, err := pReader.ReadMultiBuffer() common.Must(err) if r := cmp.Diff(rb.String(), "abcdefg"); r != "" { t.Error(r) } } func TestPipeInterrupt(t *testing.T) { pReader, pWriter := New(WithSizeLimit(1024)) payload := []byte{'a', 'b', 'c', 'd'} b := buf.New() b.Write(payload) common.Must(pWriter.WriteMultiBuffer(buf.MultiBuffer{b})) pWriter.Interrupt() rb, err := pReader.ReadMultiBuffer() if err != io.ErrClosedPipe { t.Fatal("expect io.ErrClosePipe, but got ", err) } if !rb.IsEmpty() { t.Fatal("expect empty buffer, but got ", rb.Len()) } } func TestPipeClose(t *testing.T) { pReader, pWriter := New(WithSizeLimit(1024)) payload := []byte{'a', 'b', 'c', 'd'} b := buf.New() common.Must2(b.Write(payload)) common.Must(pWriter.WriteMultiBuffer(buf.MultiBuffer{b})) common.Must(pWriter.Close()) rb, err := pReader.ReadMultiBuffer() common.Must(err) if rb.String() != string(payload) { t.Fatal("expect content ", string(payload), " but actually ", rb.String()) } rb, err = pReader.ReadMultiBuffer() if err != io.EOF { t.Fatal("expected EOF, but got ", err) } if !rb.IsEmpty() { t.Fatal("expect empty buffer, but got ", rb.String()) } } func TestPipeLimitZero(t *testing.T) { pReader, pWriter := New(WithSizeLimit(0)) bb := buf.New() common.Must2(bb.Write([]byte{'a', 'b'})) common.Must(pWriter.WriteMultiBuffer(buf.MultiBuffer{bb})) var errg errgroup.Group errg.Go(func() error { b := buf.New() b.Write([]byte{'c', 'd'}) return pWriter.WriteMultiBuffer(buf.MultiBuffer{b}) }) errg.Go(func() error { time.Sleep(time.Second) var container buf.MultiBufferContainer if err := buf.Copy(pReader, &container); err != nil { return err } if r := cmp.Diff(container.String(), "abcd"); r != "" { return errors.New(r) } return nil }) errg.Go(func() error { time.Sleep(time.Second * 2) return pWriter.Close() }) if err := errg.Wait(); err != nil { t.Error(err) } } func TestPipeWriteMultiThread(t *testing.T) { pReader, pWriter := New(WithSizeLimit(0)) var errg errgroup.Group for i := 0; i < 10; i++ { errg.Go(func() error { b := buf.New() b.WriteString("abcd") return pWriter.WriteMultiBuffer(buf.MultiBuffer{b}) }) } time.Sleep(time.Millisecond * 100) pWriter.Close() errg.Wait() b, err := pReader.ReadMultiBuffer() common.Must(err) if r := cmp.Diff(b[0].Bytes(), []byte{'a', 'b', 'c', 'd'}); r != "" { t.Error(r) } } func TestInterfaces(t *testing.T) { _ = (buf.Reader)(new(Reader)) _ = (buf.TimeoutReader)(new(Reader)) } func BenchmarkPipeReadWrite(b *testing.B) { reader, writer := New(WithoutSizeLimit()) a := buf.New() a.Extend(buf.Size) c := buf.MultiBuffer{a} b.ResetTimer() for i := 0; i < b.N; i++ { common.Must(writer.WriteMultiBuffer(c)) d, err := reader.ReadMultiBuffer() common.Must(err) c = d } }