public void GetHashCode_Should_Return_The_Same_Hashes_For_CookedFood_With_Equal_Properties()
{
var bakedApple1 = new CookedFood(100, "apple", FoodGroup.Fruit, "Baked");
var bakedApple2 = new CookedFood(100, "apple", FoodGroup.Fruit, "Baked");
Assert.AreEqual(bakedApple1.GetHashCode(), bakedApple2.GetHashCode());
}
public void GetHashCode_Should_Return_The_Same_Hashes_For_CookedFood_With_Different_Properties()
{
var bakedApple = new CookedFood(100, "apple", FoodGroup.Fruit, "Baked");
var bakedBanana = new CookedFood(100, "banana", FoodGroup.Fruit, "Baked");
Assert.AreNotEqual(bakedApple.GetHashCode(), bakedBanana.GetHashCode());
}
public void DerivedType_GetHashCode_EquivalentItems_ExpectEqualHashCodes()
{
CookedFood banana1 = new CookedFood("Banana", Shared.FoodGroup.Fruit, "Baked");
CookedFood banana2 = new CookedFood("Banana", Shared.FoodGroup.Fruit, "Baked");
int b1hc = banana1.GetHashCode();
int b2hc = banana2.GetHashCode();
Assert.AreEqual(b1hc, b2hc);
}
public void HasSet_Should_Have_Two_CookedFood_When_They_Have_Different_HashCodes()
{
var foodItem1 = new CookedFood(100, "apple", FoodGroup.Fruit, "Baked");
var foodItem2 = new CookedFood(100, "banana", FoodGroup.Fruit, "Baked");
var hashSet = new HashSet <CookedFood>
{
foodItem1, foodItem2
};
Assert.AreNotEqual(foodItem1.GetHashCode(), foodItem2.GetHashCode());
Assert.AreEqual(hashSet.Count, 2);
}
public void HashSet_Should_Have_Only_One_CookedFood_Despite_Inserting_Two_With_The_Same_HashCode()
{
var apple1 = new CookedFood(100, "apple", FoodGroup.Fruit, "Baked");
var apple2 = new CookedFood(100, "apple", FoodGroup.Fruit, "Baked");
var hashSet = new HashSet <CookedFood>
{
apple1, apple2
};
Assert.AreEqual(apple1.GetHashCode(), apple2.GetHashCode());
Assert.AreEqual(hashSet.Count, 1);
}