def test_average():
list = SingleLinkedList().append(1).append(2).append(3).append(4)
assert average(list) == 2.5
list2 = SingleLinkedList().prepend(5).prepend(10).prepend(50).prepend(
100).prepend(500)
assert average(list2) == 133.0
assert average(list.join(list2))
def test_pop(self):
colors = SingleLinkedList()
colors.push('Magenta')
colors.push('Alizarin')
colors.push('Blue')
assert colors.pop() == 'Blue'
assert colors.pop() == 'Alizarin'
assert colors.pop() == 'Magenta'
assert colors.pop() is None
def test_popleft():
colors = SingleLinkedList()
colors.push('purple')
colors.push('green')
colors.push('yellow')
assert colors.popleft() == 'purple'
assert colors.popleft() == 'green'
assert colors.popleft() == 'yellow'
assert colors.popleft() == None
def test_unshift():
colors = SingleLinkedList()
colors.push("Viridian")
colors.push("Sap Green")
colors.push("Van Dyke")
assert colors.unshift() == "Viridian"
assert colors.unshift() == "Sap Green"
assert colors.unshift() == "Van Dyke"
assert colors.unshift() is None
def test_unshift(self):
colors = SingleLinkedList()
colors.push('Viridian')
colors.push('Sap Green')
colors.push('Van Dyke')
assert colors.unshift() == 'Viridian'
assert colors.unshift() == 'Sap Green'
assert colors.unshift() == 'Van Dyke'
assert colors.unshift() is None
def test_pop():
colors = SingleLinkedList()
colors.push("Magenta")
colors.push("Alizarin")
assert colors.pop() == "Alizarin"
assert colors.pop() == "Magenta"
assert colors.pop() is None
def test_pop():
colors = SingleLinkedList()
colors.push('magenta')
colors.push('red')
assert colors.pop() == 'red'
assert colors.pop() == 'magenta'
assert colors.pop() == None
def test_shift(self):
for i in range(0, 800):
colors = SingleLinkedList()
colors.shift("Cadium Orange")
assert colors.count == 1
colors.shift("Carbazole Violet")
assert colors.count == 2
assert colors.pop() == "Cadium Orange"
assert colors.count == 1
assert colors.pop() == "Carbazole Violet"
assert colors.count == 0
def test_copy():
list = SingleLinkedList()
list.append(1).append(2).append(3)
copy = list.copy()
assert not copy == list
assert copy.size() == 3
assert copy.size() == list.size()
assert copy.head() == 1
class Stack:
def __init__(self):
self.__list = SingleLinkedList()
def isEmpty(self):
return self.__list.isEmpty()
def size(self):
return self.__list.size()
def top(self):
return self.__list.head()
def push(self, element):
self.__list.prepend(element)
return self
def pop(self):
element = self.top()
self.__list = self.__list.tail()
return element
def test_last():
colors = SingleLinkedList()
colors.push("Cadmium Red Light")
assert colors.last() == "Cadmium Red Light"
colors.push("Hansa Yellow")
assert colors.last() == "Hansa Yellow"
colors.shift("Pthalo Green")
assert colors.last() == "Hansa Yellow"
def test_remove():
colors = SingleLinkedList()
colors.push("Cobalt")
colors.push("Zinc White")
colors.push("Nickle Yellow")
colors.push("Perinone")
assert colors.remove("Cobalt") == 0
assert colors.remove("Perinone") == 2
assert colors.remove("Nickle Yellow") == 1
assert colors.remove("Zinc White") == 0
def test_remove_last():
list = SingleLinkedList()
list.removeLast()
assert list.isEmpty()
list.append(1).removeLast()
assert list.isEmpty()
list.prepend(3).prepend(2).prepend(1)
assert list.size() == 3
list.removeLast()
assert list.head() == 1
assert list.size() == 2
list.removeLast().removeLast().removeLast()
assert list.size() == 0
def test_push():
colors = SingleLinkedList()
colors.push("Pthalo Blue")
assert colors.count() == 1
colors.push("Ultramarine Blue")
assert colors.count() == 2
def test_shift():
colors = SingleLinkedList()
colors.shift("Cadmium Orange")
assert colors.count() == 1
colors.shift("Carbazole Violet")
assert colors.count() == 2
assert colors.pop() == "Cadmium Orange"
assert colors.count() == 1
assert colors.pop() == "Carbazole Violet"
assert colors.count() == 0
def test_remove():
colors = SingleLinkedList()
colors.push('red')
colors.push('white')
colors.push('blue')
colors.push('yellow')
assert colors.count() == 4
assert colors.remove('white') == True
assert colors.count() == 3
assert colors.dump() == '[red, blue, yellow]'
assert colors.remove('blue') == True
assert colors.count() == 2
assert colors.remove('banana') == False
assert colors.remove('yellow') == True
assert colors.count() == 1
def test_push(self):
for i in range(0, 800):
colors = SingleLinkedList()
colors.push('Pthalo Blue')
assert colors.count() == 1
colors.push('Ultramarine Bleu')
assert colors.count() == 2
colors.push('Magenta')
assert colors.count() == 3
colors.push('Green')
assert colors.count() == 4
colors.push('Red')
assert colors.count() == 5
def test_get(self):
for i in range(0, 800):
colors = SingleLinkedList()
colors.push('Vermillion')
assert colors.get(0) == 'Vermillion'
colors.push('Sap Green')
assert colors.get(0) == 'Vermillion'
assert colors.get(1) == 'Sap Green'
colors.push('Cadmium Yellow Light')
assert colors.get(0) == 'Vermillion'
assert colors.get(1) == 'Sap Green'
assert colors.get(2) == 'Cadmium Yellow Light'
assert colors.pop() == 'Cadmium Yellow Light'
assert colors.get(0) == 'Vermillion'
assert colors.get(1) == 'Sap Green'
assert colors.get(2) is None
colors.pop()
assert colors.get(0) == 'Vermillion'
colors.pop()
assert colors.get(0) is None
def test_tail_empty_list():
list = SingleLinkedList()
assert list.tail().isEmpty()
def test_get():
colors = SingleLinkedList()
colors.push('red')
assert colors.get(0) == 'red'
colors.push('yellow')
assert colors.get(0) == 'red'
assert colors.get(1) == 'yellow'
colors.push('green')
assert colors.get(0) == 'red'
assert colors.get(1) == 'yellow'
assert colors.get(2) == 'green'
colors.pop()
assert colors.get(0) == 'red'
assert colors.get(1) == 'yellow'
assert colors.get(2) == None
colors.pop()
assert colors.get(0) == 'red'
assert colors.get(1) == None
assert colors.get(2) == None
colors.pop()
assert colors.get(0) == None
assert colors.get(1) == None
assert colors.get(2) == None
def test_dump():
colors = SingleLinkedList()
colors.push('red')
colors.push('white')
colors.push('blue')
colors.push('yellow')
assert colors.dump() == '[red, white, blue, yellow]'
colors.remove('white')
assert colors.dump() == '[red, blue, yellow]'
colors.pop()
assert colors.dump() == '[red, blue]'
colors.popleft()
assert colors.dump() == '[blue]'
def test_last():
colors = SingleLinkedList()
colors.push('red')
assert colors.last() == 'red'
colors.push('yellow')
assert colors.last() == 'yellow'
colors.push('blue')
assert colors.last() == 'blue'
def test_push():
colors = SingleLinkedList()
colors.push('blue')
assert colors.count() == 1
colors.push('red')
assert colors.count() == 2
def test_get():
colors = SingleLinkedList()
colors.push("Vermillion")
assert colors.get(0) == "Vermillion"
colors.push("Sap Green")
assert colors.get(0) == "Vermillion"
assert colors.get(1) == "Sap Green"
colors.push("Cadmium Yellow Light")
assert colors.get(0) == "Vermillion"
assert colors.get(1) == "Sap Green"
assert colors.get(2) == "Cadmium Yellow Light"
assert colors.pop() == "Cadmium Yellow Light"
assert colors.get(0) == "Vermillion"
assert colors.get(1) == "Sap Green"
assert colors.get(2) == None
colors.pop()
assert colors.get(0) == "Vermillion"
colors.pop()
assert colors.get(0) == None
def test_remove(self):
for i in range(0, 800):
colors = SingleLinkedList()
colors.push('Cobalt')
colors.push('Zinc White')
colors.push('Nickle Yellow')
colors.push('Perinone')
assert colors.remove('Nickle Yellow') == 2
# colors.dump('before perinone')
assert colors.remove('Perinone') == 2
# colors.dump('after perinone')
assert colors.remove('Zinc White') == 1
def test_tail_list():
list = SingleLinkedList()
list.prepend(1).prepend(2).prepend(3)
assert list.tail().head() == 2
assert list.tail().tail().head() == 1
def test_last(self):
for i in range(0, 800):
colors = SingleLinkedList()
colors.push('Cadmium Red Light')
assert colors.last() == 'Cadmium Red Light'
colors.push('Hansa Yellow')
assert colors.last() == 'Hansa Yellow'
colors.shift('Pthalo Green')
assert colors.last() == 'Hansa Yellow'
def test_join():
list = SingleLinkedList()
list2 = SingleLinkedList()
list.join(list2)
assert list.isEmpty()
list.prepend(1).prepend(2).prepend(3)
list2.prepend(4).prepend(5).prepend(6)
list.join(list2)
assert list.head() == 6
assert list.size() == 6
def test_size():
list = SingleLinkedList()
assert list.size() == 0
list.prepend(1).prepend(2).prepend(3)
assert list.size() == 3
def test_prepend_list():
list = SingleLinkedList()
assert list.head() is None
list.prepend(1).prepend(2).prepend(3)
assert list.head() == 3
