Joseph Doherty
47 lines
1.8 KiB
C#
47 lines
1.8 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.SqlServer.Tests;
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public sealed class ValueWriterPrepareTests
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{
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private static readonly DateTime T = new(2026, 10, 9, 1, 2, 3, DateTimeKind.Utc);
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[Fact]
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public void Non_finite_doubles_become_Empty_keeping_status()
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{
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const uint status = 0x40000000u;
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var rows = SqlServerHistorianValueWriter.Prepare(
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[
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new(T, HistorianValue.FromDouble(double.NaN), status),
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new(T.AddTicks(1), HistorianValue.FromDouble(double.PositiveInfinity), 0),
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new(T.AddTicks(2), HistorianValue.FromDouble(double.NegativeInfinity), 0),
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new(T.AddTicks(3), HistorianValue.FromDouble(1.5), 0),
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], () => T);
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rows.Select(r => r.Value.Kind).ShouldBe([HistorianValueKind.Empty, HistorianValueKind.Empty, HistorianValueKind.Empty, HistorianValueKind.Double]);
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rows[0].StatusCode.ShouldBe(status);
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}
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[Fact]
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public void Duplicate_timestamps_keep_the_first_and_null_timestamp_uses_the_clock()
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{
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var rows = SqlServerHistorianValueWriter.Prepare(
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[
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new(T, HistorianValue.FromInt64(1), 0), new(T, HistorianValue.FromInt64(2), 0),
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new(null, HistorianValue.FromInt64(3), 0),
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], () => T.AddDays(1));
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rows.Count.ShouldBe(2);
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rows[0].Value.Integer.ShouldBe(1);
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rows[1].TimeUtc.ShouldBe(T.AddDays(1));
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}
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[Fact]
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public void Data_type_mapping_is_one_table()
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{
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SqlHistorianDataTypes.FromKind(HistorianValueKind.Double).ShouldBe((byte)DriverDataType.Float64);
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SqlHistorianDataTypes.FromKind(HistorianValueKind.Boolean).ShouldBe((byte)DriverDataType.Boolean);
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SqlHistorianDataTypes.FromKind(HistorianValueKind.Empty).ShouldBe((byte)DriverDataType.Float64);
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}
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}
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