policyMapFile := strings.TrimPrefix(event.keyPath, iamConfigPolicyDBUsersPrefix)
		user := strings.TrimSuffix(policyMapFile, ".json")
		err = sys.store.PolicyMappingNotificationHandler(ctx, user, false, regUser)
	case policyDBSTSUsersPrefix:
		policyMapFile := strings.TrimPrefix(event.keyPath, iamConfigPolicyDBSTSUsersPrefix)
		user := strings.TrimSuffix(policyMapFile, ".json")
		err = sys.store.PolicyMappingNotificationHandler(ctx, user, false, stsUser)

func TrimPrefix(s, prefix []byte) []byte {
	if HasPrefix(s, prefix) {
		return s[len(prefix):]
	}
	return s
}

// TrimSuffix returns s without the provided trailing suffix string.
// If s doesn't end with suffix, s is returned unchanged.
func TrimSuffix(s, suffix []byte) []byte {
	if HasSuffix(s, suffix) {
		return s[:len(s)-len(suffix)]
	}
	return s
}

		_, ok1 := x.(headerError)
		_, ok2 := y.(headerError)
		if ok1 || ok2 {
			return ok1 && ok2
		}
		return x == y
	}
	for _, v := range vectors {
		t.Run(strings.TrimSuffix(path.Base(v.file), ".base64"), func(t *testing.T) {
			const maxSize = 10 << 10 // 10KiB
			buf := new(bytes.Buffer)
			tw := NewWriter(iotest.TruncateWriter(buf, maxSize))

			for i, tf := range v.tests {

		log.Printf("feature: %s", f)
	}
}

func needApproval(filename string) bool {
	name := filepath.Base(filename)
	if name == "go1.txt" {
		return false
	}
	minor := strings.TrimSuffix(strings.TrimPrefix(name, "go1."), ".txt")
	n, err := strconv.Atoi(minor)
	if err != nil {
		log.Fatalf("unexpected api file: %v", name)
	}
	return n >= 19 // started tracking approvals in Go 1.19
}

			}
			for _, volName := range volsInfo {
				vi, err := storageDisks[index].StatVol(ctx, pathJoin(minioMetaBucket, bucketMetaPrefix, deletedBucketsPrefix, volName))
				if err == nil {
					vi.Name = strings.TrimSuffix(volName, SlashSeparator)
					delBuckets.Store(volName, vi)
				}
			}
			return nil
		}, index)
	}
	return reduceReadQuorumErrs(ctx, g.Wait(), bucketMetadataOpIgnoredErrs, readQuorum)
}

				}
				groupSet.Add(group)
			}
		}

		groupPolicyMappingsList := listedConfigItems[policyDBGroupsListKey]
		for _, item := range groupPolicyMappingsList {
			group := strings.TrimSuffix(item, ".json")
			if err = iamOS.loadMappedPolicy(ctx, group, regUser, true, cache.iamGroupPolicyMap); err != nil && !errors.Is(err, errNoSuchPolicy) {

			len(existingFolders)+len(newFolders) >= dataScannerForceCompactAtFolders

		if totalFolders := len(existingFolders) + len(newFolders); totalFolders > int(scannerExcessFolders.Load()) {
			prefixName := strings.TrimSuffix(folder.name, "/") + "/"
			sendEvent(eventArgs{
				EventName:  event.PrefixManyFolders,
				BucketName: f.root,
				Object: ObjectInfo{
					Name: prefixName,
					Size: int64(totalFolders),
				},

			}
			if errors.Is(err, errFileNotFound) {
				return result, nil
			}
			return result, toObjectErr(err, bucket, object)
		}
		break
	}

	for i := range uploadIDs {
		uploadIDs[i] = strings.TrimSuffix(uploadIDs[i], SlashSeparator)
	}

	// S3 spec says uploadIDs should be sorted based on initiated time, we need
	// to read the metadata entry.
	var uploads []MultipartInfo

		// a file with a very large GNU 1.0 sparse map.
		file: "testdata/gnu-sparse-many-zeros.tar.bz2",
		err:  errSparseTooLong,
	}}

	for _, v := range vectors {
		t.Run(strings.TrimSuffix(path.Base(v.file), ".base64"), func(t *testing.T) {
			path := v.file
			if v.obscured {
				tf, err := obscuretestdata.DecodeToTempFile(path)
				if err != nil {

pkg bufio, var ErrAdvanceTooFar error
pkg bufio, var ErrNegativeAdvance error
pkg bufio, var ErrTooLong error
pkg bytes, const MinRead = 512
pkg bytes, func TrimPrefix([]uint8, []uint8) []uint8
pkg bytes, func TrimSuffix([]uint8, []uint8) []uint8
pkg bytes, method (*Buffer) Grow(int)
pkg bytes, method (*Reader) WriteTo(io.Writer) (int64, error)
pkg compress/flate, const BestCompression = 9
pkg compress/flate, const BestSpeed = 1