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_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_last(self):
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_first(self):
for i in range(0, 800):
colors = SingleLinkedList()
colors.push('Cadmium Red Light')
assert colors.first() == 'Cadmium Red Light'
colors.push('Hansa Yellow')
assert colors.first() == 'Cadmium Red Light'
colors.shift('Pthalo Green')
assert colors.first() == 'Pthalo Green'
def test_push(self):
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_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(self):
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_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_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_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_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_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_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_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_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_get(self):
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_push():
colors = SingleLinkedList()
colors.push("Pthalo Blue")
assert colors.count() == 1
colors.push("Ultramarine Blue")
assert colors.count() == 2
def test_push():
colors = SingleLinkedList()
colors.push('blue')
assert colors.count() == 1
colors.push('red')
assert colors.count() == 2