Joseph Doherty
84 lines
2.7 KiB
C#
84 lines
2.7 KiB
C#
using Opc.Ua;
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using ZB.MOM.WW.ScadaBridge.DataConnectionLayer.Adapters;
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namespace ZB.MOM.WW.ScadaBridge.DataConnectionLayer.Tests;
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/// <summary>
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/// M7-B1 (T16 type-info): pure NodeId → friendly built-in DataType name mapping.
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/// Known OPC UA built-in DataType NodeIds (ns=0;i=…) resolve to their CLR-ish
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/// friendly names; unknown/custom DataType NodeIds fall back to the NodeId string.
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/// No live server is required — this is a pure lookup helper.
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/// </summary>
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public class OpcUaDataTypeNameMapTests
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{
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[Theory]
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[InlineData("Boolean")]
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[InlineData("SByte")]
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[InlineData("Byte")]
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[InlineData("Int16")]
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[InlineData("UInt16")]
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[InlineData("Int32")]
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[InlineData("UInt32")]
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[InlineData("Int64")]
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[InlineData("UInt64")]
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[InlineData("Float")]
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[InlineData("Double")]
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[InlineData("String")]
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[InlineData("DateTime")]
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[InlineData("Guid")]
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[InlineData("ByteString")]
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public void Resolve_KnownBuiltInTypes_ReturnFriendlyNames(string typeName)
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{
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// Look up the well-known DataType NodeId by its standard name on
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// DataTypeIds (e.g. DataTypeIds.Double) so the test mirrors exactly
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// the constants the helper maps against.
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var field = typeof(DataTypeIds).GetField(typeName)!;
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var nodeId = (NodeId)field.GetValue(null)!;
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Assert.Equal(typeName, OpcUaBuiltInTypeNames.Resolve(nodeId));
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}
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[Fact]
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public void Resolve_Double_ReturnsDouble()
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{
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Assert.Equal("Double", OpcUaBuiltInTypeNames.Resolve(DataTypeIds.Double));
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}
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[Fact]
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public void Resolve_Int32_ReturnsInt32()
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{
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Assert.Equal("Int32", OpcUaBuiltInTypeNames.Resolve(DataTypeIds.Int32));
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}
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[Fact]
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public void Resolve_Boolean_ReturnsBoolean()
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{
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Assert.Equal("Boolean", OpcUaBuiltInTypeNames.Resolve(DataTypeIds.Boolean));
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}
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[Fact]
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public void Resolve_String_ReturnsString()
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{
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Assert.Equal("String", OpcUaBuiltInTypeNames.Resolve(DataTypeIds.String));
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}
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[Fact]
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public void Resolve_UnknownCustomNodeId_ReturnsNodeIdString()
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{
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// A vendor-defined DataType (string identifier, non-zero namespace) is
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// not a built-in, so the helper falls back to the NodeId string — the
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// only thing the UI can meaningfully display for an opaque type.
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var custom = new NodeId("CustomType", 5);
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Assert.Equal(custom.ToString(), OpcUaBuiltInTypeNames.Resolve(custom));
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}
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[Fact]
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public void Resolve_Null_ReturnsEmptyString()
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{
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// Defensive: a null DataType attribute value must not throw during a
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// best-effort browse type-read.
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Assert.Equal(string.Empty, OpcUaBuiltInTypeNames.Resolve(null));
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}
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}
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