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feat(historian): QuestDb provider + Host wiring; conformance suite green on both backends

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AtTime conformance stamps are the requested time (M3; identical on SQL Server). The
QuestDB test fixture prunes idle pooled connections after 1 s: undisposed per-test data
sources exhausted QuestDB's 64-connection PG-wire limit in a full run.

Claude-Session: https://claude.ai/code/session_01Ef2ozxS7QPanGT8uoATbTe
This commit is contained in:
Joseph Doherty
2026-10-11 02:53:40 -04:00
parent 3244f9781a
commit 0e2bffc74a
3 changed files with 17 additions and 7 deletions
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tests/Drivers/Historian.Conformance/AtTimeConformance.cs
+5 -5
View File
@@ -35,7 +35,7 @@ public abstract class AtTimeConformance : ConformanceBase
var s = (await B.CreateDataSource().ReadAtTimeAsync("A", [At(10), At(20)], Ct)).Samples;
s[0].Value.ShouldBe(20d);
s[0].StatusCode.ShouldBe(0u);
s[0].SourceTimestampUtc.ShouldBe(B.Round(At(10)));
s[0].SourceTimestampUtc.ShouldBe(At(10)); // the requested time itself, never rounded (M3)
s[0].ServerTimestampUtc.ShouldBe(B.Round(At(11))); // the stored ServerTimeUtc
s[1].Value.ShouldBe(30d); // a stored Bad sample comes back as stored
s[1].StatusCode.ShouldBe(0x80000000u);
@@ -50,7 +50,7 @@ public abstract class AtTimeConformance : ConformanceBase
s[1].Value.ShouldBe(12.5d); // 10 + 10 * 2.5/10
s[2].Value.ShouldBe(42.5d); // 40 + 10 * 2.5/10
s.ShouldAllBe(x => x.StatusCode == GoodInterpolated);
s[0].SourceTimestampUtc.ShouldBe(B.Round(At(5))); // stamped at the requested (sub-ms) time
s[0].SourceTimestampUtc.ShouldBe(At(5)); // stamped at the requested (sub-µs) time itself, never rounded (M3)
}
[Fact]
@@ -61,7 +61,7 @@ public abstract class AtTimeConformance : ConformanceBase
var s = (await B.CreateDataSource().ReadAtTimeAsync("A", [before], Ct)).Samples.Single();
s.Value.ShouldBeNull();
s.StatusCode.ShouldBe(BadNoData);
s.SourceTimestampUtc.ShouldBe(B.Round(before));
s.SourceTimestampUtc.ShouldBe(before);
}
[Fact]
@@ -80,7 +80,7 @@ public abstract class AtTimeConformance : ConformanceBase
var s = (await B.CreateDataSource().ReadAtTimeAsync("A", [At(25)], Ct)).Samples.Single();
s.Value.ShouldBeNull(); // NOT 35 (30→40) and NOT 30 (a Bad value)
s.StatusCode.ShouldBe(0x80000000u); // the previous sample's Bad code — never upgraded to Uncertain
s.SourceTimestampUtc.ShouldBe(B.Round(At(25)));
s.SourceTimestampUtc.ShouldBe(At(25));
}
[Fact]
@@ -173,7 +173,7 @@ public abstract class AtTimeConformance : ConformanceBase
var s = (await B.CreateDataSource().ReadAtTimeAsync("A", [At(5), At(-1), At(5), At(10)], Ct)).Samples;
s.Count.ShouldBe(4);
s.Select(x => x.Value).ShouldBe([15d, null, 15d, 20d]);
s.Select(x => x.SourceTimestampUtc).ShouldBe([B.Round(At(5)), B.Round(At(-1)), B.Round(At(5)), B.Round(At(10))]);
s.Select(x => x.SourceTimestampUtc).ShouldBe([At(5), At(-1), At(5), At(10)]);
}
[Fact]