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