Add .GetOrder() and .GetOperation() to IProcessExtensions

Created a UnitTest for both methods.

Author: DosenSuppe

src/Moryx.ControlSystem/Processes/IProcessExtensions.cs

@@ -1,8 +1,10 @@
-using Moryx.AbstractionLayer.Products;
-using Moryx.AbstractionLayer;
 using System;
 using System.Collections.Generic;
 using System.Text;
+using Moryx.AbstractionLayer;
+using Moryx.AbstractionLayer.Products;
+using Moryx.AbstractionLayer.Recipes;
+using Moryx.ControlSystem.Recipes;
 
 namespace Moryx.ControlSystem.Processes
 {
@@ -66,5 +68,37 @@ public static bool TryModifyProductInstance<TInstance>(this IProcess process, Ac
             setter.Invoke(instance);
             return true;
         }
+
+        /// <summary>
+        /// Returns <see cref="IOrderBasedRecipe.OrderNumber"/> on the <see cref="IProcess"/> using the given <paramref name="process"/>. 
+        /// </summary>
+        /// <param name="process">The process holding the order number</param>
+        /// <example>
+        /// <code>
+        /// <![CDATA[
+        /// process.GetOrder()
+        /// ]]>
+        /// </code>
+        /// </example>
+        public static string GetOrder(this IProcess process)
+        {
+            return (process.Recipe as IOrderBasedRecipe)?.OrderNumber;
+        }
+
+        /// <summary>
+        /// Returns <see cref="IOrderBasedRecipe.OperationNumber"/> on the <see cref="IProcess"/> using the given <paramref name="process"/>. 
+        /// </summary>
+        /// <param name="process">The process holding the operation number</param>
+        /// <example>
+        /// <code>
+        /// <![CDATA[
+        /// process.GetOperation()
+        /// ]]>
+        /// </code>
+        /// </example>
+        public static string GetOperation(this IProcess process)
+        {
+            return (process.Recipe as IOrderBasedRecipe)?.OperationNumber;
+        }
     }
 }

src/Tests/Moryx.ControlSystem.Tests/Mocks/DummyRecipe.cs

@@ -0,0 +1,16 @@
+// Copyright (c) 2023, Phoenix Contact GmbH & Co. KG
+
+using Moryx.AbstractionLayer.Recipes;
+using Moryx.ControlSystem.Recipes;
+
+namespace Moryx.ControlSystem.Tests.Mocks;
+
+public class DummyRecipe : ProductionRecipe, IOrderBasedRecipe
+{
+    public string OrderNumber { get; set; }
+    public string OperationNumber { get; set; }
+
+    public DummyRecipe()
+    {
+    }
+}

src/Tests/Moryx.ControlSystem.Tests/ProcessExtensionsTest.cs

@@ -0,0 +1,28 @@
+// Copyright (c) 2023, Phoenix Contact GmbH & Co. KG
+
+using Moryx.AbstractionLayer;
+using Moryx.ControlSystem.Processes;
+using Moryx.ControlSystem.Tests.Mocks;
+using NUnit.Framework;
+
+namespace Moryx.ControlSystem.Tests;
+
+[TestFixture]
+internal class ProcessExtensionsTest
+{
+    [Test]
+    public void ShouldReturnOrderAndOperationNumber()
+    {
+        // Arrange
+        var recipe = new DummyRecipe { OrderNumber = "O10", OperationNumber = "Op082"};
+        var process = new Process { Recipe = recipe};
+
+        // Act
+        var orderNumber = process?.GetOrder();
+        var operationNumber = process?.GetOperation();
+
+        // Assert
+        Assert.That(orderNumber, Is.EqualTo(recipe.OrderNumber));
+        Assert.That(operationNumber, Is.EqualTo(recipe.OperationNumber));
+    }
+}