* there is no need to use this method.
   *
   * @param comparator the comparator that defines the order
   * @return comparator itself if it is already an {@code Ordering}; otherwise an ordering that
   *     wraps that comparator
   */
  public static <T extends @Nullable Object> Ordering<T> from(Comparator<T> comparator) {
    return (comparator instanceof Ordering)
        ? (Ordering<T>) comparator

	return ge.msg
}

// ErrConfigNotFound is an error to indicate
// that a config parameter is not found
type ErrConfigNotFound struct {
	ErrConfigGeneric
}

// Error creates an error message and wraps
// it with the error type specified in the type parameter
func Error[T ErrorConfig, PT interface {
	*T
	setMsg(string)
}](format string, vals ...any,
) T {
	pt := PT(new(T))
	pt.setMsg(fmt.Sprintf(format, vals...))

			return trw.headerWritten
		} else if uw, ok := w.(unwrapper); ok {
			w = uw.Unwrap()
		} else {
			return false
		}
	}
}

// trackingResponseWriter wraps a ResponseWriter and notes when WriterHeader has
// been called. This allows high level request handlers to check if something
// has already sent the header.
type trackingResponseWriter struct {
	http.ResponseWriter

// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Package bufio implements buffered I/O. It wraps an io.Reader or io.Writer
// object, creating another object (Reader or Writer) that also implements
// the interface but provides buffering and some help for textual I/O.
package bufio

import (
	"bytes"
	"errors"
	"io"
	"strings"

		}
		if v.wantErr == nil && r.Len() == 0 {
			t.Errorf("test %d, canary byte unexpectedly consumed", i)
		}
	}
}

// testNonEmptyReader wraps an io.Reader and ensures that
// Read is never called with an empty buffer.
type testNonEmptyReader struct{ io.Reader }

func (r testNonEmptyReader) Read(b []byte) (int, error) {
	if len(b) == 0 {

			if 'A' <= sr && sr <= 'Z' && tr == sr+'a'-'A' {
				continue
			}
			return false
		}

		// General case. SimpleFold(x) returns the next equivalent rune > x
		// or wraps around to smaller values.
		r := unicode.SimpleFold(sr)
		for r != sr && r < tr {
			r = unicode.SimpleFold(r)
		}
		if r == tr {
			continue
		}
		return false
	}

var testInput = []byte("012\n345\n678\n9ab\ncde\nfgh\nijk\nlmn\nopq\nrst\nuvw\nxy")
var testInputrn = []byte("012\r\n345\r\n678\r\n9ab\r\ncde\r\nfgh\r\nijk\r\nlmn\r\nopq\r\nrst\r\nuvw\r\nxy\r\n\n\r\n")

// TestReader wraps a []byte and returns reads of a specific length.
type testReader struct {
	data   []byte
	stride int
}

func (t *testReader) Read(buf []byte) (n int, err error) {
	n = t.stride
	if n > len(t.data) {

    cache.refresh(key);
    checkNothingLogged();
    assertThat(countingLoader.getCount()).isEqualTo(3);
  }

  /**
   * Make sure LoadingCache correctly wraps ExecutionExceptions and UncheckedExecutionExceptions.
   */
  public void testLoadingExceptionWithCause() {
    Exception cause = new Exception();

    cache.refresh(key);
    checkNothingLogged();
    assertThat(countingLoader.getCount()).isEqualTo(3);
  }

  /**
   * Make sure LoadingCache correctly wraps ExecutionExceptions and UncheckedExecutionExceptions.
   */
  public void testLoadingExceptionWithCause() {
    Exception cause = new Exception();

	rw := httptest.NewRecorder()
	trw := &trackingResponseWriter{ResponseWriter: rw}
	wrap1 := &gzhttp.NoGzipResponseWriter{ResponseWriter: trw}
	wrap2 := &gzhttp.NoGzipResponseWriter{ResponseWriter: wrap1}

	if headersAlreadyWritten(wrap2) {
		t.Fatal("headers have not been written yet")
	}

	wrap2.WriteHeader(123)
	if !headersAlreadyWritten(wrap2) {
		t.Fatal("headers were written")
	}
}