mikemccand commented on issue #12458:
URL: https://github.com/apache/lucene/issues/12458#issuecomment-1653651762
And ... 2 -> 3 bytes DOES fail, fun :)
```
public void testUTF8TwoToThreeBytes() throws Exception {
Automaton.Builder b = new Automaton.Builder();
// start state:
int s1 = b.createState();
// single end accept state:
int s2 = b.createState();
b.setAccept(s2, true);
// add two single-code-point terms
b.addTransition(s1, s2, 0x7FF);
b.addTransition(s1, s2, 0x800);
Automaton a = b.finish();
CompiledAutomaton c = new CompiledAutomaton(a);
FiniteStringsIterator it = new FiniteStringsIterator(c.automaton);
int termCount = 0;
for (IntsRef r = it.next(); r != null; r = it.next()) {
termCount++;
}
assertEquals(2, termCount);
}
```
```
> java.lang.AssertionError: expected:<2> but was:<2050>
> at
__randomizedtesting.SeedInfo.seed([E20E213BD5F7763C:1E8F5BB354E27C83]:0)
> at org.junit.Assert.fail(Assert.java:89)
> at org.junit.Assert.failNotEquals(Assert.java:835)
> at org.junit.Assert.assertEquals(Assert.java:647)
> at org.junit.Assert.assertEquals(Assert.java:633)
> at
org.apache.lucene.util.automaton.TestUTF32ToUTF8.testUTF8TwoToThreeBytes(TestUTF32ToUTF8.java:335)
```
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