public void DequeueOnEmptyShelter()
{
Shelter shelter = new Shelter();
Animal dog = new Animal("Dog");
Assert.Throws <NullReferenceException>(() => shelter.Dequeue(dog));
}
// Should Dequeue Front Pet from Shelter when no arguments are passed to Dequeue method
public void ShouldDequeueAnyPet()
{
Shelter testShelter = Program.PopulateShelter();
Pet adopted = testShelter.Dequeue();
Assert.Equal("Kim", testShelter.Front.Name);
Assert.Equal("Jason", adopted.Name);
}
// Should Return the Front Pet in the case that there are no instances of the prefered Pet type in the Shelter
public void ShouldReturnFirstPetIfNoPreferedExist()
{
Shelter catShelter = Program.CatsOnly();
Pet adopted = catShelter.Dequeue(new Dog("test"));
Assert.Equal("Rocky", adopted.Name);
Assert.Equal("Aiesha", catShelter.Front.Name);
Assert.Equal("Adam", catShelter.Rear.Name);
}
// Should Return front-most requested animal when an argument is passed into Dequeue method
// Should also keep the order of the Pets unchanged otherwise
public void ShouldDequeueFirstPreferredPet()
{
Shelter testShelter = Program.PopulateShelter();
Pet adopted = testShelter.Dequeue(new Cat("test"));
Assert.Equal("Zach", adopted.Name);
Assert.Equal("Jason", testShelter.Front.Name);
Assert.Equal("Billy", testShelter.Rear.Name);
}
public void CanDequeueDogFromShelter()
{
Shelter shelter = new Shelter();
Dog dog = new Dog("Henry");
shelter.Enqueue(dog);
Animal result = shelter.Dequeue("Dog");
Assert.Equal(dog, result);
}
public void CanDequeueCatFromShelter()
{
Shelter shelter = new Shelter();
Cat cat = new Cat("Moe");
shelter.Enqueue(cat);
Animal result = shelter.Dequeue("Cat");
Assert.Equal(cat, result);
}
public Node <int> Dequeue(Animal pref)
{
Current = Shelter.Front;
Oldest = Shelter.Front;
if (pref is Dog)
{
if (Shelter.Front is Dog)
{
Node <Animal> result = Shelter.Dequeue();
}
}
if (pref is Cat)
{
}
return(null);
}
public void DequeueOtherAnimalOnShelter()
{
Shelter shelter = new Shelter();
Animal dog = new Animal("Dog");
Animal cat = new Animal("Cat");
Animal turtle = new Animal("Turtle");
shelter.Enqueue(dog);
shelter.Enqueue(dog);
shelter.Enqueue(dog);
shelter.Enqueue(cat);
shelter.Enqueue(cat);
shelter.Enqueue(dog);
Assert.True(shelter.Dequeue(turtle).Type == dog.Type);
}
public void DequeueCatAnimalOnShelterMix()
{
Shelter shelter = new Shelter();
Animal dog = new Animal("Dog");
Animal cat = new Animal("Cat");
Animal testCat = new Animal("Cat");
Animal testDog = new Animal("Dog");
shelter.Enqueue(dog);
shelter.Enqueue(dog);
shelter.Enqueue(dog);
shelter.Enqueue(cat);
shelter.Enqueue(dog);
shelter.Enqueue(cat);
Assert.True(shelter.Dequeue(cat).Type == cat.Type);
Assert.Equal(testCat.Type, shelter.Rear.Type);
Assert.Equal(testDog.Type, shelter.Front.Type);
}
public void CanFindAnimalInShelter()
{
Shelter shelter = new Shelter();
Cat cat = new Cat("Moe");
Cat cat2 = new Cat("Moe2");
Cat cat3 = new Cat("Moe3");
Dog dog = new Dog("Henry");
shelter.Enqueue(cat);
shelter.Enqueue(cat2);
shelter.Enqueue(dog);
shelter.Enqueue(cat3);
Animal result = shelter.Dequeue("Dog");
Assert.Equal(dog, result);
}
