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refactor(historian): one QuestDbTimeClusters helper for writer + updater existence reads; redelivery tombstone test

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Claude-Session: https://claude.ai/code/session_01Ef2ozxS7QPanGT8uoATbTe
This commit is contained in:
Joseph Doherty
2026-10-11 02:32:11 -04:00
parent d2be213e86
commit 3244f9781a
8 changed files with 152 additions and 91 deletions
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tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Historian.QuestDb.IntegrationTests/WriteTests.cs
-19
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@@ -274,23 +274,4 @@ public sealed class WriteTests(QuestDbFixture fx)
(await w.WriteLiveValuesAsync("tag.far", vals, CancellationToken.None)).ShouldBeTrue();
(await RowsAsync(c, "tag.far")).Count.ShouldBe(2);
}
[Fact]
public void Cluster_splits_on_a_gap_over_the_limit_and_at_the_per_cluster_cap()
{
var g = TimeSpan.FromMinutes(1);
QuestDbHistorianValueWriter.Cluster([], g, 10).ShouldBeEmpty();
QuestDbHistorianValueWriter.Cluster([T0], g, 10).ShouldBe([(T0, T0)]);
// exactly the gap stays together; one tick over splits
QuestDbHistorianValueWriter.Cluster([T0, T0 + g], g, 10).ShouldBe([(T0, T0 + g)]);
QuestDbHistorianValueWriter.Cluster([T0, T0 + g + TimeSpan.FromTicks(10)], g, 10)
.ShouldBe([(T0, T0), (T0 + g + TimeSpan.FromTicks(10), T0 + g + TimeSpan.FromTicks(10))]);
// outlier gets its own range
var far = T0.AddYears(1);
QuestDbHistorianValueWriter.Cluster([T0, T0.AddSeconds(1), far], g, 10).ShouldBe([(T0, T0.AddSeconds(1)), (far, far)]);
// cap: 5 close times, max 2 per cluster
var five = Enumerable.Range(0, 5).Select(i => T0.AddSeconds(i)).ToList();
QuestDbHistorianValueWriter.Cluster(five, g, 2)
.ShouldBe([(five[0], five[1]), (five[2], five[3]), (five[4], five[4])]);
}
}