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feat(twincat): TIME/TOD as Double ms, DATE/DT as UTC DateTime with read decode + write encode (#306)

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Claude-Session: https://claude.ai/code/session_01Ef2ozxS7QPanGT8uoATbTe
This commit is contained in:
Joseph Doherty
2026-10-08 14:24:12 -04:00
parent d898262c4a
commit 90e3fe1cf7
10 changed files with 226 additions and 32 deletions
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tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.TwinCAT.Tests/TwinCATArrayCodecTests.cs
+17 -7
View File
@@ -194,18 +194,28 @@ public sealed class TwinCATArrayCodecTests
}
/// <summary>
/// TIME / DATE / DT / TOD elements publish as their raw 32-bit count (<c>uint[]</c>) — the same
/// CLR shape a scalar of those types publishes. Live: <c>.THROTTLE_MODE_DEFAULT</c>
/// (<c>ARRAY [0..12] OF TIME</c>) begins <c>0, 10, 20</c> ms.
/// TIME / TOD elements publish as Double milliseconds and DATE / DT as UTC DateTime (#306) — the same
/// CLR shape a scalar publishes. Live: <c>.THROTTLE_MODE_DEFAULT</c> (<c>ARRAY [0..12] OF TIME</c>)
/// begins <c>0, 10, 20</c> ms.
/// </summary>
[Theory]
[InlineData(TwinCATDataType.Time)]
[InlineData(TwinCATDataType.TimeOfDay)]
public void Decode_duration_elements_as_double_ms(TwinCATDataType type)
=> TwinCATArrayCodec.Decode(type, [0, 0, 0, 0, 10, 0, 0, 0, 20, 0, 0, 0], new TwinCATArrayLayout(3, 4), utf8: false)
.ShouldBe(new double[] { 0, 10, 20 });
/// <summary>DATE / DT elements decode to UTC DateTime from seconds since 1970.</summary>
[Theory]
[InlineData(TwinCATDataType.Date)]
[InlineData(TwinCATDataType.DateTime)]
[InlineData(TwinCATDataType.TimeOfDay)]
public void Decode_time_and_date_elements_as_uint(TwinCATDataType type)
=> TwinCATArrayCodec.Decode(type, [0, 0, 0, 0, 10, 0, 0, 0, 20, 0, 0, 0], new TwinCATArrayLayout(3, 4), utf8: false)
.ShouldBe(new uint[] { 0, 10, 20 });
public void Decode_date_elements_as_utc_datetime(TwinCATDataType type)
=> TwinCATArrayCodec.Decode(type, [0, 0, 0, 0, 60, 0, 0, 0], new TwinCATArrayLayout(2, 4), utf8: false)
.ShouldBe(new[]
{
new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc),
new DateTime(1970, 1, 1, 0, 1, 0, DateTimeKind.Utc),
});
/// <summary>A BOOL element is one byte; any non-zero byte is TRUE (live: <c>.ARGTYPE_IS_BIT_TYPE</c>).</summary>
[Fact]