unittests

TrafagSalesExporter/TrafagSalesExporter.Tests/TransformationStrategiesTests.cs

@@ -0,0 +1,50 @@
+using TrafagSalesExporter.Models;
+using TrafagSalesExporter.Services;
+
+namespace TrafagSalesExporter.Tests;
+
+public class TransformationStrategiesTests
+{
+    [Fact]
+    public void ReplaceStrategy_Replaces_Text_Using_Argument_Syntax()
+    {
+        var strategy = new ReplaceTransformationStrategy();
+
+        var result = strategy.Transform("Intercompany Kunde", "Intercompany=>Extern");
+
+        Assert.Equal("Extern Kunde", result);
+    }
+
+    [Fact]
+    public void ConstantStrategy_Returns_Argument_Ignoring_SourceValue()
+    {
+        var strategy = new ConstantTransformationStrategy();
+
+        var result = strategy.Transform("ignored", "CHF");
+
+        Assert.Equal("CHF", result);
+    }
+
+    [Fact]
+    public void FirstNonEmptyRecordStrategy_Uses_First_Non_Empty_Field_From_Argument_List()
+    {
+        var strategy = new FirstNonEmptyRecordTransformationStrategy();
+        var record = new SalesRecord
+        {
+            CustomerName = "",
+            SupplierName = "Fallback Supplier",
+            Name = "Article Name"
+        };
+        var rule = new FieldTransformationRule
+        {
+            RuleScope = "Record",
+            TargetField = nameof(SalesRecord.CustomerName),
+            TransformationType = "FirstNonEmpty",
+            Argument = $"{nameof(SalesRecord.CustomerName)}|{nameof(SalesRecord.SupplierName)}|{nameof(SalesRecord.Name)}"
+        };
+
+        strategy.Transform(record, rule);
+
+        Assert.Equal("Fallback Supplier", record.CustomerName);
+    }
+}