feat(dcl): OPC UA A&C field mapper (Task 11 part 1 — pure, unit-tested)

2026-05-29 16:13:02 -04:00
parent d3b3d15018
commit 1fbb814daa
2 changed files with 110 additions and 0 deletions
@@ -0,0 +1,58 @@
+using ZB.MOM.WW.ScadaBridge.Commons.Types.Enums;
+using ZB.MOM.WW.ScadaBridge.DataConnectionLayer.Adapters;
+
+namespace ZB.MOM.WW.ScadaBridge.DataConnectionLayer.Tests;
+
+/// <summary>Task-11: pure OPC UA A&C field → AlarmConditionState/transition mapping.</summary>
+public class OpcUaAlarmMapperTests
+{
+    [Fact]
+    public void NormalizeSeverity_ClampsTo0_1000()
+    {
+        Assert.Equal(1000, OpcUaAlarmMapper.NormalizeSeverity(5000));
+        Assert.Equal(0, OpcUaAlarmMapper.NormalizeSeverity(-1));
+        Assert.Equal(500, OpcUaAlarmMapper.NormalizeSeverity(500));
+    }
+
+    [Fact]
+    public void BuildCondition_ActiveUnacked()
+    {
+        var c = OpcUaAlarmMapper.BuildCondition(active: true, acked: false, confirmed: null,
+            shelve: AlarmShelveState.Unshelved, suppressed: false, severity: 700);
+        Assert.True(c.Active);
+        Assert.False(c.Acknowledged);
+        Assert.Equal(700, c.Severity);
+        Assert.Equal(AlarmShelveState.Unshelved, c.Shelve);
+    }
+
+    [Fact]
+    public void DeriveKind_AckEdge_YieldsAcknowledge()
+    {
+        Assert.Equal(AlarmTransitionKind.Acknowledge,
+            OpcUaAlarmMapper.DeriveKind(prevAcked: false, nowAcked: true, prevActive: true, nowActive: true));
+    }
+
+    [Fact]
+    public void DeriveKind_ActiveEdge_YieldsRaise()
+    {
+        Assert.Equal(AlarmTransitionKind.Raise,
+            OpcUaAlarmMapper.DeriveKind(prevAcked: true, nowAcked: true, prevActive: false, nowActive: true));
+    }
+
+    [Fact]
+    public void DeriveKind_InactiveEdge_YieldsClear()
+    {
+        Assert.Equal(AlarmTransitionKind.Clear,
+            OpcUaAlarmMapper.DeriveKind(prevAcked: true, nowAcked: true, prevActive: true, nowActive: false));
+    }
+
+    [Theory]
+    [InlineData("OneShotShelved", AlarmShelveState.OneShotShelved)]
+    [InlineData("TimedShelved", AlarmShelveState.TimedShelved)]
+    [InlineData("Unshelved", AlarmShelveState.Unshelved)]
+    [InlineData(null, AlarmShelveState.Unshelved)]
+    public void MapShelve_MapsCurrentStateName(string? name, AlarmShelveState expected)
+    {
+        Assert.Equal(expected, OpcUaAlarmMapper.MapShelve(name));
+    }
+}