def lastElement (lst):
"""
Retorna el último elemento de la lista, sin eliminarlo.
"""
if (lst['type']=='ARRAY_LIST'):
return alt.lastElement(lst)
else:
return slt.lastElement(lst)
def test_addLast(lst, books):
assert slt.isEmpty(lst) == True
assert slt.size(lst) == 0
slt.addLast(lst, books[1])
assert slt.size(lst) == 1
slt.addLast(lst, books[2])
assert slt.size(lst) == 2
book = slt.firstElement(lst)
assert book == books[1]
book = slt.lastElement(lst)
assert book == books[2]
def test_addLast(lst, peliculas):
assert slt.isEmpty(lst) == True
assert slt.size(lst) == 0
slt.addLast(lst, peliculas[1])
assert slt.size(lst) == 1
slt.addLast(lst, peliculas[2])
assert slt.size(lst) == 2
pelicula = slt.firstElement(lst)
assert pelicula == peliculas[1]
pelicula = slt.lastElement(lst)
assert pelicula == peliculas[2]
def test_addLast(lst, books):
assert lts.isEmpty(lst) == True
assert lts.size(lst) == 0
lts.addLast(lst, books[1])
assert lts.size(lst) == 1
lts.addLast(lst, books[2])
assert lts.size(lst) == 2
book = lts.firstElement(lst)
assert book == books[1]
book = lts.lastElement(lst)
assert book == books[2]
def lastElement(lst):
"""
Retorna el último elemento de la lista, sin eliminarlo.
Args:
lst
Lista a evaluar
Return::int
El último elemento dentro de la lista
"""
if (lst['type'] == 'ARRAY_LIST'):
return alt.lastElement(lst)
else:
return slt.lastElement(lst)
def lastElement(lst):
""" Retorna el último elemento de una lista no vacia. No se elimina el elemento.
Args:
lst: La lista a examinar
Raises:
Exception
"""
try:
if (lst['type'] == 'ARRAY_LIST'):
return alt.lastElement(lst)
else:
return slt.lastElement(lst)
except Exception as exp:
error.reraise(exp, 'List->lastElement: ')
