import (
	. "bufio"
	"bytes"
	"errors"
	"io"
	"strings"
	"testing"
	"unicode"
	"unicode/utf8"
)

const smallMaxTokenSize = 256 // Much smaller for more efficient testing.

// Test white space table matches the Unicode definition.
func TestSpace(t *testing.T) {
	for r := rune(0); r <= utf8.MaxRune; r++ {
		if IsSpace(r) != unicode.IsSpace(r) {

func (r *Reader) ReadRune() (ch rune, size int, err error) {
	if r.i >= int64(len(r.s)) {
		r.prevRune = -1
		return 0, 0, io.EOF
	}
	r.prevRune = int(r.i)
	if c := r.s[r.i]; c < utf8.RuneSelf {
		r.i++
		return rune(c), 1, nil
	}
	ch, size = utf8.DecodeRune(r.s[r.i:])
	r.i += int64(size)
	return
}

// UnreadRune complements [Reader.ReadRune] in implementing the [io.RuneScanner] interface.

        return readText(path, UTF8);
    }

    /**
     * Reads text from a file in UTF-8 encoding.
     *
     * @param file
     *            The file. Must not be {@literal null}.
     * @return The text read from the file.
     */
    public static String readUTF8(final File file) {
        assertArgumentNotNull("file", file);
        return readText(file, UTF8);
    }

    /**

 *   <li>{@link Stopwatch}
 *   <li>{@link Throwables}
 *   <li>{@link Verify}
 * </ul>
 *
 * <h3>The rest</h3>
 *
 * This package also contains some classes with niche use cases (e.g., {@link Utf8} and {@link
 * Defaults}), as well as a number of classes that have been superseded by additions to the JDK.
 */
@CheckReturnValue
@NullMarked
package com.google.common.base;

        path: ~/go/pkg/mod
        key: ${{ runner.os }}-go-${{ matrix.go }}-${{ hashFiles('tests/go.mod') }}

    - name: Tests
      run: GITHUB_ACTION=true GORM_DIALECT=mysql GORM_DSN="gorm:gorm@tcp(localhost:9910)/gorm?charset=utf8&parseTime=True" ./tests/tests_all.sh

  mariadb:
    strategy:
      matrix:
        dbversion: [ 'mariadb:latest' ]
        go: ['1.23', '1.24']
        platform: [ ubuntu-latest ]

	}
}

func TestRuneIO(t *testing.T) {
	const NRune = 1000
	// Built a test slice while we write the data
	b := make([]byte, utf8.UTFMax*NRune)
	var buf Buffer
	n := 0
	for r := rune(0); r < NRune; r++ {
		size := utf8.EncodeRune(b[n:], r)
		nbytes, err := buf.WriteRune(r)
		if err != nil {
			t.Fatalf("WriteRune(%U) error: %s", r, err)
		}
		if nbytes != size {

     */
    @Nonnull
    Optional<String> getString(@Nonnull URI relativeSource, @Nonnull Charset charset);

    /**
     * GETs the source URI content as string using UTF8 charset. The source MUST BE relative from the
     * {@link RemoteRepository#getUrl()} root.
     *
     * @return the string if operation succeeded, {@code null} if source does not exist.

    assertThat(recordedRequest1.method).isEqualTo("POST")
    assertThat(recordedRequest1.body?.utf8()).isEqualTo(body)
    assertThat(recordedRequest1.headers["Authorization"]).isNull()
    val recordedRequest2 = server.takeRequest()
    assertThat(recordedRequest2.method).isEqualTo("POST")
    assertThat(recordedRequest2.body?.utf8()).isEqualTo(body)
    assertThat(recordedRequest2.headers["Authorization"]).isEqualTo(credential)
  }

          rangesBuffer.writeByte(range.b3)
        }
        is MappedRange.External -> {
          // Write the mapping.
          val mappingOffset: Int
          val mappedTo = range.mappedTo.utf8()
          val mappingIndex = mappingsBuffer.indexOf(mappedTo)
          if (mappingIndex == -1) {
            mappingOffset = mappingsBuffer.length
            mappingsBuffer.append(mappedTo)
          } else {

		//
		// Forbid 0x7e and 0x5c since EUC-KR and Shift-JIS replace those
		// characters with localized currency and overline characters.
		if r < 0x20 || r > 0x7d || r == 0x5c {
			if !utf8.ValidRune(r) || (r == utf8.RuneError && size == 1) {
				return false, false
			}
			require = true
		}
	}
	return true, require
}

// prepare performs the bookkeeping operations required at the start of