public void ReturnNone_ForGoodItalianFood()
{
var restaurantData = _getRestaurants();
var isItalian = new ItalianRestaurantSpecification();
var goodRestaurant = new GoodRestaurantSpecification();
var evaluator = new SpecificationEvaluator <Restaurant>();
var mySpecification = isItalian.And(goodRestaurant);
var results = evaluator.ApplySpecification(restaurantData, mySpecification).AsEnumerable();
Assert.Empty(results);
}
public void ReturnMcdonalds_ForGoodAndAmerican()
{
var restaurantData = _getRestaurants();
var isGoodRestaurant = new GoodRestaurantSpecification();
var isAmerican = new AmericanRestaurantSpecification();
var evaluator = new SpecificationEvaluator <Restaurant>();
var mySpecification = isGoodRestaurant.And(isAmerican);
var results = evaluator.ApplySpecification(restaurantData, mySpecification).AsEnumerable();
Assert.Single(results);
Assert.Contains(restaurantData.First(), results);
}
public void ReturnBoth_ForGoodOrItalian()
{
var restaurantData = _getRestaurants();
var isGoodRestaurant = new GoodRestaurantSpecification();
var isItalian = new ItalianRestaurantSpecification();
var evaluator = new SpecificationEvaluator <Restaurant>();
var mySpecification = isGoodRestaurant.Or(isItalian);
var results = evaluator.ApplySpecification(restaurantData, mySpecification).AsEnumerable();
Assert.Equal(2, results.Count());
Assert.Contains(restaurantData.First(), results);
Assert.Contains(restaurantData.ElementAt(1), results);
}
