type readBadSeeker struct{ io.ReadSeeker }

func (rbs *readBadSeeker) Seek(int64, int) (int64, error) { return 0, fmt.Errorf("illegal seek") }

// TestReadTruncation test the ending condition on various truncated files and
// that truncated files are still detected even if the underlying io.Reader
// satisfies io.Seeker.
func TestReadTruncation(t *testing.T) {
	var ss []string
	for _, p := range []string{
		"testdata/gnu.tar",

// 3. Binary. Blob of metadata. Length 0 on directories.
// ... Next element.
//
// Streams can be assumed to be sorted in ascending order.
// If the stream ends before a false boolean it can be assumed it was truncated.

const metacacheStreamVersion = 2

// metacacheWriter provides a serializer of metacache objects.
type metacacheWriter struct {
	streamErr   error
	mw          *msgp.Writer
	creator     func() error

    webServer.dispatcher =
      object : Dispatcher() {
        override fun dispatch(request: RecordedRequest): MockResponse =
          upgradeResponse(request)
            .body(Buffer().write("81".decodeHex())) // Truncated frame.
            .removeHeader("Content-Length")
            .build()
      }
    val webSocket: WebSocket = newWebSocket()
    clientListener.assertOpen()
    clientListener.assertFailure(

          lineCount++
        } catch (_: EOFException) {
          break // End of journal.
        }
      }

      redundantOpCount = lineCount - lruEntries.size

      // If we ended on a truncated line, rebuild the journal before appending to it.
      if (!exhausted()) {
        rebuildJournal()
      } else {
        journalWriter?.closeQuietly()
        journalWriter = newJournalWriter()
      }

          )
        }
      } else if (base != null) {
        this.scheme = base.scheme
      } else {
        val truncated = if (input.length > 6) input.take(6) + "..." else input
        throw IllegalArgumentException(
          "Expected URL scheme 'http' or 'https' but no scheme was found for $truncated",
        )
      }

      // Authority.
      var hasUsername = false
      var hasPassword = false

    and `www.squareup.com`. If a server refuses such sharing it will return HTTP 421 and OkHttp will
    automatically retry on an unshared connection.
 *  Fix: Don't crash if a TLS tunnel's response body is truncated.
 *  Fix: Don't track unusable routes beyond their usefulness. We had a bug where we could track
    certain bad routes indefinitely; now we only track the ones that could be necessary.

	"strconv"
	"strings"
	"time"
)

// BUG: Use of the Uid and Gid fields in Header could overflow on 32-bit
// architectures. If a large value is encountered when decoding, the result
// stored in Header will be the truncated version.

var tarinsecurepath = godebug.New("tarinsecurepath")

var (
	ErrHeader          = errors.New("archive/tar: invalid tar header")
	ErrWriteTooLong    = errors.New("archive/tar: write too long")

        }
      };

  /**
   * A Throwable used to record a stack trace that illustrates an example of a specific lock
   * acquisition ordering. The top of the stack trace is truncated such that it starts with the
   * acquisition of the lock in question, e.g.
   *
   * <pre>
   * com...ExampleStackTrace: LockB -&gt; LockC

func discard(r io.Reader, n int64) error {
	// If possible, Seek to the last byte before the end of the data section.
	// Do this because Seek is often lazy about reporting errors; this will mask
	// the fact that the stream may be truncated. We can rely on the
	// io.CopyN done shortly afterwards to trigger any IO errors.
	var seekSkipped int64 // Number of bytes skipped via Seek
	if sr, ok := r.(io.Seeker); ok && n > 1 {

          }
        };
      }
    };
  }

  /**
   * Returns an unmodifiable view of the difference of two multisets. In the returned multiset, the
   * count of each element is the result of the <i>zero-truncated subtraction</i> of its count in
   * the second multiset from its count in the first multiset, with elements that would have a count
   * of 0 not included. The iteration order of the returned multiset matches that of the element set