Tony-X commented on code in PR #12909:
URL: https://github.com/apache/lucene/pull/12909#discussion_r1423089503
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lucene/core/src/test/org/apache/lucene/util/automaton/TestNFARunAutomaton.java:
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@@ -73,6 +73,37 @@ public void testWithRandomRegex() {
}
}
+ public void testRandomAccessTransition() {
+ Automaton nfa = new RegExp(AutomatonTestUtil.randomRegexp(random()),
RegExp.NONE).toAutomaton();
+ while (nfa.isDeterministic()) {
+ nfa = new RegExp(AutomatonTestUtil.randomRegexp(random()),
RegExp.NONE).toAutomaton();
+ }
+ NFARunAutomaton runAutomaton1, runAutomaton2;
+ runAutomaton1 = new NFARunAutomaton(nfa);
+ runAutomaton2 = new NFARunAutomaton(nfa);
+ assertRandomAccessTransition(runAutomaton1, runAutomaton2, 0, new
HashSet<>());
+ }
+
+ private void assertRandomAccessTransition(
+ NFARunAutomaton automaton1, NFARunAutomaton automaton2, int state,
Set<Integer> visited) {
+ if (visited.contains(state)) {
+ return;
+ }
+ visited.add(state);
+
+ Transition t1 = new Transition();
+ Transition t2 = new Transition();
+ automaton1.initTransition(state, t1);
+ automaton2.initTransition(state, t2);
Review Comment:
maybe add a random flag here. For the RA API you don't strictly need to
init, as long as you know the state and the index of the transition.
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