Joseph Doherty
f0700571e8
51 new test cases (34 methods) in Sql.Common.Tests covering AtTimeEvaluator, AggregateEvaluator (hand-built tag-A bucket rows, ProcessedRead literals), BucketPlan, LiveWritePreparer and HistoryUpdatePlanner (incl. resolutionTicks=10 truncate-before-dedup and the superseded-duplicate outcome), plus EventContinuation, HistorianHealthCounters, ClampSeverity and StoredSample.FromStored. Each was falsified by reverting the rule it pins (37 mutations, all red, all restored). Claude-Session: https://claude.ai/code/session_01Ef2ozxS7QPanGT8uoATbTe
38 lines
1.5 KiB
C#
38 lines
1.5 KiB
C#
using Shouldly;
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using Xunit;
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using ZB.MOM.WW.OtOpcUa.Core.Abstractions;
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namespace ZB.MOM.WW.OtOpcUa.Driver.Historian.Sql.Common.Tests;
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public sealed class LiveWritePreparerTests
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{
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private static readonly DateTime T = new DateTime(2026, 10, 9, 8, 0, 0, DateTimeKind.Utc).AddTicks(1234567);
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[Fact]
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public void Prepare_truncates_to_microseconds_before_dedup_when_resolution_is_10()
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{
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// The brief's example used AddTicks(3), but …567 + 3 = …570 crosses into the NEXT microsecond; +2 (…569) stays
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// in the same one (…560), which is the case the test means to pin.
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var t = T;
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var rows = LiveWritePreparer.Prepare([new(t, HistorianValue.FromDouble(1), 0), new(t.AddTicks(2), HistorianValue.FromDouble(2), 0)], () => t, 10);
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rows.Count.ShouldBe(1);
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rows[0].TimeUtc.Ticks.ShouldBe(t.Ticks - t.Ticks % 10);
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rows[0].Value.Number.ShouldBe(1);
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}
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[Fact]
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public void Resolution_1_keeps_100ns_ticks_distinct()
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{
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var rows = LiveWritePreparer.Prepare([new(T, HistorianValue.FromDouble(1), 0), new(T.AddTicks(3), HistorianValue.FromDouble(2), 0)], () => T);
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rows.Select(r => r.TimeUtc.Ticks).ShouldBe([T.Ticks, T.Ticks + 3]);
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}
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[Fact]
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public void Truncation_also_applies_to_the_clock_and_the_result_is_utc()
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{
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var rows = LiveWritePreparer.Prepare([new(null, HistorianValue.FromDouble(1), 0)], () => T, 10);
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rows[0].TimeUtc.ShouldBe(new DateTime(T.Ticks - 7, DateTimeKind.Utc));
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rows[0].TimeUtc.Kind.ShouldBe(DateTimeKind.Utc);
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}
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}
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