{"2021-09-29T16:04:33.012345678Z", 12_345_678},
	// 10 digits, truncates
	{"2021-09-29T16:04:33.0000000000Z", 0},
	{"2021-09-29T16:04:33.0000000001Z", 0},
	{"2021-09-29T16:04:33.1000000000Z", 100_000_000},
	{"2021-09-29T16:04:33.1000000009Z", 100_000_000},
	{"2021-09-29T16:04:33.9999999999Z", 999_999_999},
	{"2021-09-29T16:04:33.0123456789Z", 12_345_678},
	// 11 digits, truncates

	// 8-byte needle
	{"xxxxxxxxxxxx", "01234567", false},
	{"01234567xxxx", "01234567", true},
	{"xx01234567xx", "01234567", true},
	{"xxxx01234567", "01234567", true},
	{"01234567xxxxx"[1:], "01234567", false},
	{"xxxxx01234567"[:12], "01234567", false},
	// 9-15-byte needle
	{"xxxxxxxxxxxxx", "012345678", false},
	{"012345678xxxx", "012345678", true},
	{"xx012345678xx", "012345678", true},

		1: 1,
		2: 1,
	}
	for i, v := range map[int]int{
		0: 1,
		2: 3,
		4: 5,
		6: 7,
		8: 9,
	} {
		want[i] = v
	}

	if !Equal(got, want) {
		t.Errorf("Insert got: %v, want: %v", got, want)
	}
}

func TestCollect(t *testing.T) {
	m := map[int]int{
		0: 1,
		2: 3,
		4: 5,
		6: 7,
		8: 9,
	}
	got := Collect(All(m))
	if !Equal(got, m) {

		results    []string // expected results of reads
	}{
		{12, 15, []string{"0123456789", "ab\x00\x00\x00fghij", "klmn"}},                              // within one read
		{8, 21, []string{"01234567\x00\x00", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", "\x00lmn"}}, // across multiple reads
		{10, 20, []string{"0123456789", "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", "klmn"}},         // a whole read

	}
	if p == ^uintptr(0) {
		return 0, false
	}
	return *(*uint32)(unsafe.Pointer(p + _HPET_MAIN_COUNTER)), true
}

//go:systemstack
func initHPETTimecounter(idx int) {
	const digits = "0123456789"

	var devPath [len(hpetDevPath)]byte
	copy(devPath[:], hpetDevPath)
	devPath[9] = digits[idx]

	fd := open(&devPath[0], 0 /* O_RDONLY */ |_O_CLOEXEC, 0)
	if fd < 0 {

 * Useful when streams are interpreted a text streams as it happens on IBM java for standard input.
 */
public abstract class EncodedStream {
    private final static char[] HEX_DIGIT = new char[] {
        '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'
    };

    @SuppressWarnings("InputStreamSlowMultibyteRead")
    public static class EncodedInput extends InputStream {

        private final InputStream delegate;

     */
    @Test
    public void testIsNumver() throws Exception {
        assertFalse(StringUtil.isNumber(null));
        assertTrue(StringUtil.isNumber("0123456789"));
        assertFalse(StringUtil.isNumber("aaaBBBccc"));
        assertFalse(StringUtil.isNumber("０１２３４５６７８９"));
        assertFalse(StringUtil.isNumber(""));
        assertFalse(StringUtil.isNumber("01234abcdef"));
        assertFalse(StringUtil.isNumber("abcdef01234"));

import java.net.URL;

import org.codelibs.core.net.URLUtil;
import org.junit.Test;

/**
 * @author koichik
 */
public class CopyUtilTest {

    static byte[] srcBytes = new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };

    static String srcString = "ABCDEFGHIJKLMN";

    static String urlString = "あいうえお";

    InputStream is = new ByteArrayInputStream(srcBytes);

        given:
        WorkerConfig original = new WorkerConfig(
            LogLevel.ERROR,
            true,
            "/path/to/user/home",
            new MultiChoiceAddress(new UUID(123, 456), 789, [InetAddress.getByName("example.com")]),
            987,
            "name",
            new TestAction("value"),
            NativeServicesMode.ENABLED
        )

        when:

func TestDirent(t *testing.T) {
	const (
		direntBufSize   = 2048 // arbitrary? See https://go.dev/issue/37323.
		filenameMinSize = 11
	)

	d := t.TempDir()
	t.Logf("tmpdir: %s", d)

	for i, c := range []byte("0123456789") {
		name := string(bytes.Repeat([]byte{c}, filenameMinSize+i))
		err := os.WriteFile(filepath.Join(d, name), nil, 0644)
		if err != nil {
			t.Fatalf("writefile: %v", err)
		}
	}