* @param snapshotNames set of snapshot names/nonces to verify
*/
public static void verifySnapshots(
final List<String> directories, final Set<String> snapshotNames, boolean expectHashinator) {
FileFilter filter = new SnapshotFilter();
if (!snapshotNames.isEmpty()) {
filter = new SpecificSnapshotFilter(snapshotNames);
}
Map<String, Snapshot> snapshots = new HashMap<String, Snapshot>();