private void VerifyCommitOrder <T>(IList <T> commits) where T : IndexCommit
{
IndexCommit firstCommit = commits[0];
long last = SegmentInfos.GenerationFromSegmentsFileName(firstCommit.SegmentsFileName);
Assert.AreEqual(last, firstCommit.Generation);
long lastVersion = firstCommit.Version;
long lastTimestamp = firstCommit.Timestamp(null);
for (int i = 1; i < commits.Count; i++)
{
IndexCommit commit = commits[i];
long now = SegmentInfos.GenerationFromSegmentsFileName(commit.SegmentsFileName);
long nowVersion = commit.Version;
long nowTimestamp = commit.Timestamp(null);
Assert.IsTrue(now > last, "SegmentInfos commits are out-of-order");
Assert.IsTrue(nowVersion > lastVersion, "SegmentInfos versions are out-of-order");
Assert.IsTrue(nowTimestamp >= lastTimestamp, "SegmentInfos timestamps are out-of-order: now=" + nowTimestamp + " vs last=" + lastTimestamp);
Assert.AreEqual(now, commit.Generation);
last = now;
lastVersion = nowVersion;
lastTimestamp = nowTimestamp;
}
}