feat(Mock): Erstellt, um gefälschte Daten zu erzeugen.

- Methode zur Erstellung eines gefälschten Hosts hinzugefügt.

EnvelopeGenerator.Tests.Application/Mock.cs

@@ -0,0 +1,25 @@
+using Microsoft.Extensions.Hosting;
+using EnvelopeGenerator.Application.Extensions;
+using EnvelopeGenerator.Infrastructure;
+using Microsoft.Extensions.Configuration;
+
+namespace EnvelopeGenerator.Tests.Application;
+
+public class Mock
+{
+    public static IHost CreateHost(Action<HostApplicationBuilder>? builderOptions = null, string configPath = "appsettings.json", params string[] args)
+    {
+        var builder = Host.CreateApplicationBuilder(args.Any() ? args : null);
+        builder.Configuration.AddJsonFile(configPath, optional: true, reloadOnChange: true);
+
+        builder.Services
+            .AddEnvelopeGeneratorRepositories()
+            .AddEnvelopeGeneratorServices(builder.Configuration);
+
+        builderOptions?.Invoke(builder);
+
+        var host = builder.Build();
+
+        return host;
+    }
+}