}
	}
}

// Tests - CheckPreconditions()
func TestCheckPreconditions(t *testing.T) {
	objModTime := time.Date(2024, time.August, 26, 0o2, 0o1, 0o1, 0, time.UTC)
	objInfo := ObjectInfo{ETag: "aa", ModTime: objModTime}
	testCases := []struct {
		name              string
		ifMatch           string
		ifNoneMatch       string
		ifModifiedSince   string
		ifUnmodifiedSince string
		objInfo           ObjectInfo

		if si.Mode == 0 {
			// Not, set it to default.
			si.Mode = 0o600
		}
		if si.ModTime.IsZero() {
			// Set time to now.
			si.ModTime = time.Now()
		}
		header, zerr := zip.FileInfoHeader(dummyFileInfo{
			name:    filename,
			size:    si.Size,
			mode:    os.FileMode(si.Mode),
			modTime: si.ModTime,
			isDir:   si.Dir,
			sys:     nil,
		})
		if zerr != nil {

	hdr.Size = p.parseNumeric(v7.size())
	hdr.Mode = p.parseNumeric(v7.mode())
	hdr.Uid = int(p.parseNumeric(v7.uid()))
	hdr.Gid = int(p.parseNumeric(v7.gid()))
	hdr.ModTime = time.Unix(p.parseNumeric(v7.modTime()), 0)

	// Unpack format specific fields.
	if format > formatV7 {
		ustar := tr.blk.toUSTAR()
		hdr.Uname = p.parseString(ustar.userName())
		hdr.Gname = p.parseString(ustar.groupName())

		Bucket:      bucket,
		Name:        object,
		Size:        r.Size(),
		IsLatest:    true,
		ContentType: string(mimeXML),
		NumVersions: 1,
		ETag:        etag,
		ModTime:     UTCNow(),
	}, opts)

		Size:                       oi.Size,
		ActualSize:                 asz,
		Bucket:                     oi.Bucket,
		VersionID:                  oi.VersionID,
		ETag:                       oi.ETag,
		ModTime:                    oi.ModTime,
		ReplicationStatus:          oi.ReplicationStatus,
		ReplicationStatusInternal:  oi.ReplicationStatusInternal,
		DeleteMarker:               oi.DeleteMarker,

		case isSysErrIO(err):
			return VolInfo{}, errFaultyDisk
		default:
			return VolInfo{}, err
		}
	}
	// As os.Lstat() doesn't carry other than ModTime(), use ModTime()
	// as CreatedTime.
	createdTime := st.ModTime()
	return VolInfo{
		Name:    volume,
		Created: createdTime,
	}, nil
}

// DeleteVol - delete a volume.

			lastObjMetaName = object.Name
		}
		content := ObjectVersion{}
		content.Key = s3EncodeName(object.Name, encodingType)
		content.LastModified = amztime.ISO8601Format(object.ModTime.UTC())
		if object.ETag != "" {
			content.ETag = "\"" + object.ETag + "\""
		}
		content.Size = object.Size
		if object.StorageClass != "" {
			content.StorageClass = filterStorageClass(ctx, object.StorageClass)

			errs, bucket, object, versionID), err
	}

	result.ParityBlocks = result.DiskCount - readQuorum
	result.DataBlocks = readQuorum

	// List of disks having latest version of the object xl.meta
	// (by modtime).
	onlineDisks, quorumModTime, quorumETag := listOnlineDisks(storageDisks, partsMetadata, errs, readQuorum)

	// Latest FileInfo for reference. If a valid metadata is not
	// present, it is as good as object not found.

	// set common headers
	setCommonHeaders(w)

	// Set last modified time.
	lastModified := objInfo.ModTime.UTC().Format(http.TimeFormat)
	w.Header().Set(xhttp.LastModified, lastModified)

	// Set Etag if available.
	if objInfo.ETag != "" {
		w.Header()[xhttp.ETag] = []string{"\"" + objInfo.ETag + "\""}
	}

	if err != nil {
		t.Fatal(err)
	}

	// Write xl.meta with different modtime to simulate the case where a disk had
	// gone down when an object was replaced by a new object.
	fileInfoOutDated := fileInfoPreHeal
	fileInfoOutDated.ModTime = time.Now()
	err = disk.WriteMetadata(t.Context(), "", bucket, object, fileInfoOutDated)
	if err != nil {
		t.Fatal(err)
	}