Codebasis als Dateien ins Arbeitsrepo statt als Gitlink

QuellCode/CentronERP war nur als Gitlink (Submodul-Referenz auf 79c1142)
getrackt, ohne .gitmodules und ohne erreichbares Remote. Der
Untersuchungsgegenstand der Versuchsreihe war damit nicht reproduzierbar
gesichert: Ein Klon haette ein leeres Verzeichnis erhalten, und die Belege
der 3.287 Anforderungen waeren nicht ueberpruefbar gewesen.

Umstellung:
- Historie nach c:\DEV\CentronERP_git_snapshot_79c1142 ausgelagert
  (vollstaendig lesbar, enthaelt 79c1142 und Vorgaenger 89ccfd6)
- Gitlink aus dem Index entfernt
- Dateiinhalt aufgenommen: 24.557 Dateien, rund 333 MB

Die verschachtelte .gitignore der Codebasis gilt weiter, Build-Artefakte
bleiben ausgeschlossen. Details in Versuche/Versuch_01/_Codebasis-Nachweis.md

QuellCode/CentronERP/tests/Centron.Tests.EndToEnd/TicketTests/Ticket119564/Ticket119564Tests.cs

@@ -0,0 +1,101 @@
+using System.Collections.Generic;
+using System.Linq;
+using Centron.BusinessLogic;
+using Centron.BusinessLogic.EmployeeArea;
+using Centron.BusinessLogic.Sales.Receipts.DataAndResults;
+using Centron.BusinessLogic.Warehousing;
+using Centron.BusinessLogic.WebServices.Sales.Receipts;
+using Centron.BusinessLogic.WebServices.Warehousing;
+using Centron.Data.Entities.Administration.Logins;
+using Centron.Data.WebServices.Sales.Receipts.DeliveryLists;
+using Centron.Interfaces;
+using Centron.Interfaces.Administration.Environment;
+using Centron.Interfaces.BL;
+using Centron.Interfaces.Sales.Receipts;
+using Centron.Interfaces.Warehousing;
+using Centron.Tests.EndToEnd.Infrastructure;
+using Xunit;
+using Xunit.Abstractions;
+
+namespace Centron.Tests.EndToEnd.TicketTests.Ticket119564
+{
+    public class Ticket119564Tests : EndToEndTest
+    {
+        public Ticket119564Tests(ITestOutputHelper testOutputHelper) 
+            : base(testOutputHelper)
+        {
+        }
+
+        public override void Execute()
+        {
+            // This test validates that the SaveReceipt method returns NegativeArticleStockBookings
+            // Article 4329 has a quantity of 1 in the database, and we want to create a delivery-list with 10 of it
+            // That means oldQuantity should be 1, newQuantity should be -9
+            
+            var deliveryList = this.CreateDeliveryList();
+
+            using (var saveSession = new BLSession())
+            {
+                var user = saveSession.GetBL<AppUserBL>().GetAppUser(f => f.I3D == 11);
+
+                var saveResult = saveSession.GetBL<ReceiptWebServiceBL>().SaveReceipt(
+                    deliveryList, 
+                    user, 
+                    new SaveReceiptData 
+                    { 
+                        IgnoreCallbacks = false, //Allow callbacks, because I want to check the negative-article-booking callback 
+                        InsertFreightArticle = false
+                    }, 
+                    autoLockIfNewReceipt: false, 
+                    CreatedThroughApplication.CentronNet, 
+                    receiptTemplateFolderI3D: null);
+
+                Assert.Equal(ResultStatus.Error, saveResult.Status);
+                this.Verifier.Verify("NegativeArticleBookings", saveResult.Data.NegativeArticleStockBookings);
+            }
+        }
+
+        private ReceiptDeliveryListDTO CreateDeliveryList()
+        {
+            const int ArticleI3D = 4329;
+            
+            ReceiptDeliveryListDTO deliveryList;
+            using (var session = new BLSession())
+            {
+                var user = session.GetBL<AppUserBL>().GetAppUser(f => f.I3D == 11);
+
+                // Create delivery-list
+                var result = session.GetBL<ReceiptWebServiceBL>().CreateNewReceipt(
+                    CentronObjectKindNumeric.DeliveryListClass,
+                    new LoggedInUser(user),
+                    customerI3D: 10022,
+                    new CreateReceiptData(),
+                    addressI3D: null,
+                    contactPersonI3D: null,
+                    insertSalutationAndAgreement: true,
+                    ignoreDefaultContract: false,
+                    insertCustomerDiscount: true);
+
+                // Create delivery-list-items
+                var receiptItem = session.GetBL<ReceiptItemWebServiceBL>().CreateArticleReceiptItems(
+                    result.Data.Receipt,
+                    isExternalArticle: false,
+                    ArticleI3D,
+                    externalArticleKind: null,
+                    externalArticleId: null,
+                    warehouseI3D: -1,
+                    new LoggedInUser(user));
+
+                // Add items to delivery-list
+                deliveryList = (ReceiptDeliveryListDTO) result.Data.Receipt;
+                deliveryList.Items.AddRange(receiptItem.Data.ReceiptItems.Cast<ReceiptDeliveryListItemDTO>());
+
+                // Set quantity to more than available in the database, right now there is only 1 piece available
+                var articlePosition = deliveryList.Items.Single(f => f.ArticleI3D == ArticleI3D);
+                articlePosition.QuantityComplete = 10;
+            }
+
+            return deliveryList;
+        }
+    }
+}