feat(historian): SQL Server value writer, tag provisioner, alarm writer (T9)

Claude-Session: https://claude.ai/code/session_01Ef2ozxS7QPanGT8uoATbTe
2026-10-09 13:08:43 -04:00
parent 65e6352dad
commit bef47f89da
8 changed files with 864 additions and 0 deletions
@@ -0,0 +1,46 @@
+using Shouldly;
+using Xunit;
+using ZB.MOM.WW.OtOpcUa.Core.Abstractions;
+
+namespace ZB.MOM.WW.OtOpcUa.Driver.Historian.SqlServer.Tests;
+
+public sealed class ValueWriterPrepareTests
+{
+    private static readonly DateTime T = new(2026, 10, 9, 1, 2, 3, DateTimeKind.Utc);
+
+    [Fact]
+    public void Non_finite_doubles_become_Empty_keeping_status()
+    {
+        const uint status = 0x40000000u;
+        var rows = SqlServerHistorianValueWriter.Prepare(
+        [
+            new(T, HistorianValue.FromDouble(double.NaN), status),
+            new(T.AddTicks(1), HistorianValue.FromDouble(double.PositiveInfinity), 0),
+            new(T.AddTicks(2), HistorianValue.FromDouble(double.NegativeInfinity), 0),
+            new(T.AddTicks(3), HistorianValue.FromDouble(1.5), 0),
+        ], () => T);
+        rows.Select(r => r.Value.Kind).ShouldBe([HistorianValueKind.Empty, HistorianValueKind.Empty, HistorianValueKind.Empty, HistorianValueKind.Double]);
+        rows[0].StatusCode.ShouldBe(status);
+    }
+
+    [Fact]
+    public void Duplicate_timestamps_keep_the_first_and_null_timestamp_uses_the_clock()
+    {
+        var rows = SqlServerHistorianValueWriter.Prepare(
+        [
+            new(T, HistorianValue.FromInt64(1), 0), new(T, HistorianValue.FromInt64(2), 0),
+            new(null, HistorianValue.FromInt64(3), 0),
+        ], () => T.AddDays(1));
+        rows.Count.ShouldBe(2);
+        rows[0].Value.Integer.ShouldBe(1);
+        rows[1].TimeUtc.ShouldBe(T.AddDays(1));
+    }
+
+    [Fact]
+    public void Data_type_mapping_is_one_table()
+    {
+        SqlHistorianDataTypes.FromKind(HistorianValueKind.Double).ShouldBe((byte)DriverDataType.Float64);
+        SqlHistorianDataTypes.FromKind(HistorianValueKind.Boolean).ShouldBe((byte)DriverDataType.Boolean);
+        SqlHistorianDataTypes.FromKind(HistorianValueKind.Empty).ShouldBe((byte)DriverDataType.Float64);
+    }
+}