def test_dequeue_three():
shelter = Queue()
shelter.enqueue({'type': 'dog', 'name': 'fido'})
shelter.enqueue({'type': 'cat', 'name': 'mittens'})
shelter.enqueue({'type': 'dog', 'name': 'bud'})
# import pdb; pdb.set_trace()
assert shelter.dequeue('cat') == 'mittens'
assert shelter.dequeue('dog') == 'fido'
assert shelter.dequeue('dog') == 'bud'
def test_dequeue_multiple():
q = Queue()
q.enqueue("one")
q.enqueue("two")
q.enqueue("three")
q.enqueue("four")
q.dequeue()
actual = q.front.val
expected = "two"
assert actual == expected
def test_dequeue_one():
shelter = Queue()
shelter.enqueue({'type': 'dog', 'name': 'fido'})
shelter.enqueue({'type': 'cat', 'name': 'mittens'})
shelter.enqueue({'type': 'dog', 'name': 'bud'})
assert shelter.dequeue('cat') == 'mittens'
def test_peek():
q = Queue()
q.enqueue("one")
q.enqueue("two")
q.enqueue("three")
q.dequeue()
q.dequeue()
actual = q.peek()
expected = "three"
assert actual == expected
def test_enqueue_three():
shelter = Queue()
shelter.enqueue({'type': 'dog', 'name': 'fido'})
shelter.enqueue({'type': 'cat', 'name': 'mittens'})
shelter.enqueue({'type': 'dog', 'name': 'bud'})
assert shelter.tail.value['name'] == 'bud'
def test_dequeue_missing_cat():
shelter = Queue()
shelter.enqueue("dog")
shelter.enqueue("dog")
shelter.enqueue("dog")
shelter.enqueue("dog")
actual = shelter.dequeue("cat")
expected = "Null"
assert actual == expected
def test_dequeue_invalid_preference():
shelter = Queue()
shelter.enqueue("dog")
shelter.enqueue("dog")
shelter.enqueue("dog")
shelter.enqueue("dog")
actual = shelter.dequeue("pig")
expected = "Null"
assert actual == expected
def test_dequeue():
pass
q = Queue()
q.enqueue("dog")
q.dequeue()
actual = q.is_empty
expected = True
def test_enqueue_multiple_cat_first():
shelter = Queue()
shelter.enqueue("cat")
shelter.enqueue("dog")
shelter.enqueue("dog")
shelter.enqueue("cat")
actual = shelter.front.animal_type
expected = "cat"
assert actual == expected
def test_enqueue_once():
shelter = Queue()
shelter.enqueue("dog")
actual = shelter.front.animal_type
expected = "dog"
assert actual == expected
def test_dequeue_from_empty():
shelter = Queue()
actual = shelter.dequeue("cat")
expected = "No animals available"
assert actual == expected
def test_empty_shelter():
shelter = Queue()
actual = shelter.front
expected = None
assert actual == expected
def test_is_empty_is_false():
q = Queue()
q.enqueue("test")
actual = q.is_empty()
expected = False
assert actual == expected
def test_is_empty_is_true():
q = Queue()
actual = q.is_empty()
expected = True
assert actual == expected
def test_enqueue():
q = Queue()
q.enqueue("sharp pointy teeth")
actual = q.front.val
expected = "sharp pointy teeth"
assert actual == expected
def test_enqueue_one():
shelter = Queue()
shelter.enqueue({'type': 'dog', 'name': 'fido'})
assert shelter.tail.value['type'] == 'dog'
