public void RandomCustomerLogicTest()
{
LibraryLogic logic = new LibraryLogic(new Library());
AbstCustomer c = new RndIdCustomer("Paul", 10000);
logic.AddCustomer(c);
Assert.IsTrue(logic.GetLibrary.Customers.Contains(c));
Assert.IsTrue(logic.IsCustomer(c));
logic.AddCustomer(c);
Assert.AreEqual(logic.GetLibrary.Customers.Count(), 1);
logic.AddFunds(c, 10000);
Assert.AreEqual(logic.GetLibrary.Customers[0].MoneyInCents, 20000);
logic.RemoveCustomer(logic.GetLibrary.Customers[0]);
Assert.AreEqual(logic.GetLibrary.Customers.Count(), 0);
}