Adding role creation during startup + minor fixes in tests

MainProject.Tests/Program_Tests.cs

@@ -70,7 +70,7 @@ public class Program_Tests
         catch (Exception ex)
         {
             Console.WriteLine(ex.InnerException);
-            Assert.Fail($"An exception was thrown: {ex.Message}");
+            Assert.Fail($"An exception was thrown: {ex}");
         }
     }