public void GetAllBets()
{
//initiallizing
var unitOfWork = new Mock <IUnitOfWork>();
var finder = new Mock <IBetFinder>();
var collection = new Mock <IRepository <Bet> >();
var service = new BetService(unitOfWork.Object, finder.Object, collection.Object);
//act
finder.Setup(x => x.FindAllBets())
.Returns(new List <Bet>());
service.GetAllBets();
//assert
finder.Verify(x => x.FindAllBets());
}