func (r *Reader) readLine() ([]byte, error) {
	line, err := r.r.ReadSlice('\n')
	if err == bufio.ErrBufferFull {
		r.rawBuffer = append(r.rawBuffer[:0], line...)
		for err == bufio.ErrBufferFull {
			line, err = r.r.ReadSlice('\n')
			r.rawBuffer = append(r.rawBuffer, line...)
		}
		line = r.rawBuffer
	}
	readSize := len(line)
	if readSize > 0 && err == io.EOF {
		err = nil

                  }
                ],
                "transport_socket": {
                  "name": "raw_buffer",
                  "typed_config": {
                    "@type": "type.googleapis.com/envoy.extensions.transport_sockets.raw_buffer.v3.RawBuffer"
                  }
                }
              }
            },
            "metadata": {
              "filter_metadata": {

                  }
                ],
                "transport_socket": {
                  "name": "raw_buffer",
                  "typed_config": {
                    "@type": "type.googleapis.com/envoy.extensions.transport_sockets.raw_buffer.v3.RawBuffer"
                  }
                }
              }
            },
            "metadata": {
              "filter_metadata": {

		src      io.Reader
		skipLen  int64
		expected string
	}{
		{bytes.NewBuffer([]byte("")), 0, ""},
		{bytes.NewBuffer([]byte("")), 1, ""},
		{bytes.NewBuffer([]byte("abc")), 0, "abc"},
		{bytes.NewBuffer([]byte("abc")), 1, "bc"},
		{bytes.NewBuffer([]byte("abc")), 2, "c"},
		{bytes.NewBuffer([]byte("abc")), 3, ""},
		{bytes.NewBuffer([]byte("abc")), 4, ""},
	}
	for i, testCase := range testCases {

            }

            if (closed) {
              throw IOException("stream closed")
            } else if (readBuffer.size > 0L) {
              // Prepare to read bytes. Start by moving them to the caller's buffer.
              readBytesDelivered = readBuffer.read(sink, minOf(byteCount, readBuffer.size))
              readBytes.update(total = readBytesDelivered)

		}
		s += string(fub)
		check(t, testname+" (fill 4)", buf, s)
	}
	return s
}

func TestNewBuffer(t *testing.T) {
	buf := NewBuffer(testBytes)
	check(t, "NewBuffer", buf, testString)
}

var buf Buffer

// Calling NewBuffer and immediately shallow copying the Buffer struct
// should not result in any allocations.
// This can be used to reset the underlying []byte of an existing Buffer.

	data := []byte{
		0x00, 0x00, 0x00, 0x04,
		0x01, 0x02, 0x03, 0x04,
		0x00, 0x00, 0x00, 0x03,
		0x05, 0x06, 0x07,
		0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x01,
		0x08,
	}
	b := bytes.NewBuffer(data)
	r := NewLengthDelimitedFrameReader(io.NopCloser(b))
	buf := make([]byte, 1)
	if n, err := r.Read(buf); err != io.ErrShortBuffer && n != 1 && bytes.Equal(buf, []byte{0x01}) {
		t.Fatalf("unexpected: %v %d %v", err, n, buf)

            BufferCaster.cast(buffer).limit(0);
        }

        @Override
        public int read() throws IOException {
            int nread = read(readBuffer, 0, 1);
            if (nread <= 0) {
                return nread;
            }
            return readBuffer[0];
        }

        @Override
        public int read(byte[] dest, int offset, int max) throws IOException {
            if (max == 0) {

// limitations under the License.

package progress

import (
	"bytes"
	"io"
	"testing"

	"istio.io/istio/operator/pkg/name"
)

func TestProgressLog(t *testing.T) {
	buf := bytes.NewBuffer(nil)
	testBuf := io.Writer(buf)
	testWriter = &testBuf
	expected := ""
	expect := func(e string) {
		t.Helper()
		// In buffer mode we don't overwrite old data, so we are constantly appending to the expected

	}()
	for _, sz := range []int{128, 256} {
		genericAllocFunc[uint32](sz / 4)
	}
	for _, sz := range []int{32, 64} {
		genericAllocFunc[uint64](sz / 8)
	}

	runtime.GC()
	buf := bytes.NewBuffer(nil)
	if err := WriteHeapProfile(buf); err != nil {
		t.Fatalf("writing profile: %v", err)
	}
	p, err := profile.Parse(buf)
	if err != nil {
		t.Fatalf("profile.Parse: %v", err)
	}