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/Ticket87016/Ticket87016Test.cs

@@ -0,0 +1,146 @@
+using Centron.BusinessLogic;
+using Centron.BusinessLogic.Administration.Settings;
+using Centron.BusinessLogic.EmployeeArea;
+using Centron.BusinessLogic.WebServices.Sales.Receipts;
+using Centron.Data.WebServices.Sales.Receipts.Invoices;
+using Centron.Interfaces;
+using Centron.Tests.EndToEnd.Infrastructure;
+using Centron.Tests.EndToEnd.Infrastructure.Verifier;
+using CentronSoftware.Centron.WebServices.Entities.Sales.CustomerAssets.TimerBilling;
+using Xunit.Abstractions;
+
+namespace Centron.Tests.EndToEnd.TicketTests.Ticket87016
+{
+    public class Ticket87016Test : EndToEndTest
+    {
+        public static readonly int HelpdeskI3D = 10461;
+        public static readonly int HelpdeskTimerI3D = 10509;
+        public static readonly int HelpdeskTimerArticleI3D = 94;
+        public static readonly int SpecialArticleFirstI3D = 6228;
+        public static readonly int SpecialArticleSecondI3D = 6229;
+        public static readonly int GlobalDriveArticleFirstI3D = 1;
+        public static readonly int GlobalDriveArticleSecondI3D = 7;
+        public static readonly int ContractI3D = 28;
+
+        public Ticket87016Test(ITestOutputHelper testOutputHelper)
+            : base(testOutputHelper)
+        {
+        }
+
+        public override void Execute()
+        {
+            this.PrepareDatabase();
+            // We will create many invoices here from the same single timer
+            // But we will make some changes to the database between each run, to make sure everything works as expected
+            //
+            // So the current state in the database looks like this
+            //
+            // Ticket: 
+            //     I3D 10461, Number 12475, AddressI3D 1
+            // Timer: 
+            //     I3D 10509, ArticleI3D 94, Timer 407 Seconds, ContractI3D 28
+            // Special Articles: 
+            //     I3D 6228, ArticleI3D 56, Type 0 (Fixed Price), Price 35
+            //     I3D 6229, ArticleI3D 1184, Type 1 (Multiplicator), Multiplier 44           
+            // Global Drive Articles:
+            //     I3D 1, AddressI3D 1, ArticleI3D 56, Type 0 (Fixed Price), Price 35
+            //     I3D 7, AddressI3D 1, ArticleI3D 1184, Type 1(Multiplicator), Multiplier 44
+            // 
+            // There are NO special prices at the contract
+
+            this.CreateOriginalInvoice();
+            this.CreateInvoiceWithSpecialArticlePriceZero();
+            this.CreateInvoiceWithCustomPrice();
+            this.CreateInvoiceWithContractPriceForTimer();
+        }
+
+        private void PrepareDatabase()
+        {
+            this.Sql($"UPDATE dbo.Stammdat SET WertText = 'g' WHERE I3D = {(int)AppSettingsConst.HelpdeskTimerStartTimeFormat}");
+            this.Sql($"UPDATE dbo.Stammdat SET WertText = 'g' WHERE I3D = {(int)AppSettingsConst.HelpdeskTimerEndTimeFormat}");
+        }
+
+        private void CreateOriginalInvoice()
+        {
+            // Original Invoice should have the following prices
+            // Time: 30 €, Quantity 1
+            // SpecialArticle 56: 35 €, Quantity 1
+            // SpecialArticle 1184: 1 €, Quantity 44
+            this.CreateInvoice("Original");
+        }
+
+        private void CreateInvoiceWithSpecialArticlePriceZero()
+        {
+            // Set SpecialArticle Price to 0, so the global drive article price should be used
+            this.Sql($"UPDATE dbo.HelpdeskTimerSpecialArticles SET Price = 0 WHERE I3D = {SpecialArticleFirstI3D}");
+            this.Sql($"UPDATE dbo.AnschriftSonderartikel SET Preis = 20 WHERE I3D = {GlobalDriveArticleFirstI3D}");
+
+            // So now the prices should be
+            // Time: 30 €, Quantity 1
+            // SpecialArticle 56: 20 €, Quantity 1
+            // SpecialArticle 1184: 1 €, Quantity 44
+            this.CreateInvoice("SpecialArticlePriceZero");
+
+            // Reset back to default values
+            this.Sql($"UPDATE dbo.HelpdeskTimerSpecialArticles SET Price = 35 WHERE I3D = {SpecialArticleFirstI3D}");
+            this.Sql($"UPDATE dbo.AnschriftSonderartikel SET Preis = 35 WHERE I3D = {GlobalDriveArticleFirstI3D}");
+        }
+
+        private void CreateInvoiceWithCustomPrice()
+        {
+            // Set SpecialArticle Price to 50, making sure the custom price is going to be used
+            this.Sql($"UPDATE dbo.HelpdeskTimerSpecialArticles SET Price = 50 WHERE I3D = {SpecialArticleFirstI3D}");
+
+            // So now the prices should be
+            // Time: 30 €, Quantity 1
+            // SpecialArticle 56: 50 €, Quantity 1
+            // SpecialArticle 1184: 1 €, Quantity 44
+            this.CreateInvoice("CustomSpecialPrice");
+
+            // Reset back to default values
+            this.Sql($"UPDATE dbo.HelpdeskTimerSpecialArticles SET Price = 35 WHERE I3D = {SpecialArticleFirstI3D}");
+        }
+
+        private void CreateInvoiceWithContractPriceForTimer()
+        {
+            // Add a contract price for this contract and the timer article 
+            this.Sql($"INSERT INTO dbo.VertragBepreisungArtikel (VertragI3D, ArtikelI3D, Aenderungsart, Aenderungsweise, Aenderungswert, Status)" +
+                     $"VALUES({ContractI3D}, {HelpdeskTimerArticleI3D}, 3, 1, 80, 1)");
+
+            // So now the prices should be
+            // Time: 80 €, Quantity 1
+            // SpecialArticle 56: 35 €, Quantity 1
+            // SpecialArticle 1184: 1 €, Quantity 44
+            this.CreateInvoice("ContractPriceForTimer");
+
+            // Reset back to default values
+            this.Sql($"DELETE FROM dbo.VertragBepreisungArtikel WHERE VertragI3D = {ContractI3D} AND ArtikelI3D = {HelpdeskTimerArticleI3D}");
+        }
+
+        private void CreateInvoice(string name)
+        {
+            using (var session = new BLSession())
+            {
+                var user = session.GetBL<AppUserBL>().GetAppUser(f => f.I3D == 11);
+
+                var settings = new TimerBillingSettingsDTO
+                {
+                    InsertHelpdeskDescription = true,
+                    InsertHelpdeskShortDescription = true,
+                    InsertTimerText = true,
+                    InsertTimerTime = true,
+                    InsertTheFollowingAreTimersFromHelpdeskText = true,
+                    Sorting = Interfaces.Sales.Receipts.TimerBilling.TimerSorting.ChronologicalUp,
+
+                    ReceiptKind = CentronObjectKindNumeric.InvoiceClass,
+                };
+                var invoiceResult = session.GetBL<ReceiptWebServiceBL>().CreateNewReceiptForHelpdekTimers(new[] { HelpdeskTimerI3D }, settings, user);
+
+                var verifierSettings = new CentronVerifierSettings();
+                verifierSettings.IgnoreProperty<ReceiptInvoiceItemDTO>(f => f.BalanceID);
+
+                this.Verifier.Verify(name, invoiceResult, verifierSettings);
+            }
+        }
+    }
+}