public void WaggonRepository_SaveAllChanges_AllWaggonsAreWrittenIntoFile()
{
WaggonRepository repository = new WaggonRepository("WaggonConfiguration.xml");
Waggon waggon = CreateFakeWaggon("1234");
repository.Add(waggon);
repository.FilePath = "EmptyConfiguration.xml";
repository.SaveChanges();
WaggonRepository repository2 = new WaggonRepository("EmptyConfiguration.xml");
var actual = repository2.GetAll().Count;
Assert.AreEqual(409, actual);
}
