AutomatonSpecification automaton1 = operator1.createFixedAutomaton();
NondeterministicAutomatonByThompsonApproach result1 =
new NondeterministicAutomatonByThompsonApproach(automaton1);
assertFalse(automaton1.isEmpty());
assertTrue(result1.accepts("\n"));
assertFalse(result1.accepts("\\nn"));
assertFalse(result1.accepts("n"));
}