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* the Apache License, Version 2.0 (the "License"); you may
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* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
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package org.elasticsearch.index.seqno;
import org.elasticsearch.test.ESTestCase;
import static org.hamcrest.Matchers.containsString;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.hasToString;
public class SequenceNumbersTests extends ESTestCase {
public void testMin() {
final long seqNo = randomNonNegativeLong();
assertThat(SequenceNumbers.min(SequenceNumbersService.NO_OPS_PERFORMED, seqNo), equalTo(seqNo));
assertThat(
SequenceNumbers.min(SequenceNumbersService.NO_OPS_PERFORMED, SequenceNumbersService.UNASSIGNED_SEQ_NO),
equalTo(SequenceNumbersService.UNASSIGNED_SEQ_NO));
assertThat(SequenceNumbers.min(SequenceNumbersService.UNASSIGNED_SEQ_NO, seqNo), equalTo(seqNo));
final long minSeqNo = randomNonNegativeLong();
assertThat(SequenceNumbers.min(minSeqNo, seqNo), equalTo(Math.min(minSeqNo, seqNo)));
final IllegalArgumentException e =
expectThrows(IllegalArgumentException.class, () -> SequenceNumbers.min(minSeqNo, SequenceNumbersService.UNASSIGNED_SEQ_NO));
assertThat(e, hasToString(containsString("sequence number must be assigned")));
}
public void testMax() {
final long seqNo = randomNonNegativeLong();
assertThat(SequenceNumbers.max(SequenceNumbersService.NO_OPS_PERFORMED, seqNo), equalTo(seqNo));
assertThat(
SequenceNumbers.max(SequenceNumbersService.NO_OPS_PERFORMED, SequenceNumbersService.UNASSIGNED_SEQ_NO),
equalTo(SequenceNumbersService.UNASSIGNED_SEQ_NO));
assertThat(SequenceNumbers.max(SequenceNumbersService.UNASSIGNED_SEQ_NO, seqNo), equalTo(seqNo));
final long maxSeqNo = randomNonNegativeLong();
assertThat(SequenceNumbers.min(maxSeqNo, seqNo), equalTo(Math.min(maxSeqNo, seqNo)));
final IllegalArgumentException e =
expectThrows(IllegalArgumentException.class, () -> SequenceNumbers.min(maxSeqNo, SequenceNumbersService.UNASSIGNED_SEQ_NO));
assertThat(e, hasToString(containsString("sequence number must be assigned")));
}
}