{"a\xe0\x80cd", not(isValidRune), 1, 2},
}

func TestIndexFunc(t *testing.T) {
	for _, tc := range indexFuncTests {
		first := IndexFunc([]byte(tc.in), tc.f.f)
		if first != tc.first {
			t.Errorf("IndexFunc(%q, %s) = %d; want %d", tc.in, tc.f.name, first, tc.first)
		}
		last := LastIndexFunc([]byte(tc.in), tc.f.f)
		if last != tc.last {

		return checkPartVolumeNotFound
	case errDiskNotFound:
		return checkPartDiskNotFound
	default:
		return checkPartUnknown
	}
}

func partNeedsHealing(partErrs []int) bool {
	return slices.IndexFunc(partErrs, func(i int) bool { return i != checkPartSuccess && i != checkPartUnknown }) > -1
}

func countPartNotSuccess(partErrs []int) (c int) {
	for _, pe := range partErrs {
		if pe != checkPartSuccess {
			c++

	// Output:
	// 4
	// -1
}

func ExampleIndexFunc() {
	f := func(c rune) bool {
		return unicode.Is(unicode.Han, c)
	}
	fmt.Println(bytes.IndexFunc([]byte("Hello, 世界"), f))
	fmt.Println(bytes.IndexFunc([]byte("Hello, world"), f))
	// Output:
	// 7
	// -1
}

func ExampleIndexAny() {
	fmt.Println(bytes.IndexAny([]byte("chicken"), "aeiouy"))

			// For Format detection, check if block is properly formatted since
			// the parser is more liberal than what USTAR actually permits.
			notASCII := func(r rune) bool { return r >= 0x80 }
			if bytes.IndexFunc(tr.blk[:], notASCII) >= 0 {
				hdr.Format = FormatUnknown // Non-ASCII characters in block.
			}
			nul := func(b []byte) bool { return int(b[len(b)-1]) == 0 }

		Policy: []string{policy},
	})
	if err != nil {
		c.Fatalf("GetLDAPPolicyEntities should not fail: %v", err)
	}
	{
		// Check that the mapping we created exists.
		idx := slices.IndexFunc(policyResult.PolicyMappings, func(e madmin.PolicyEntities) bool {
			return e.Policy == policy && slices.Contains(e.Groups, actualGroupDN)
		})
		if idx < 0 {

		// then add only one delete marker if requested
		sort.SliceStable(fivs.Versions, func(i, j int) bool {
			return !fivs.Versions[i].Deleted
		})
		if idx := slices.IndexFunc(fivs.Versions, func(fi FileInfo) bool {
			return fi.Deleted
		}); idx > -1 {
			fivs.Versions = fivs.Versions[:idx+1]
		}
		dedupVersions = append(dedupVersions, fivs)
	}