>>> from pessa_musical import PeçaMusical
>>> from album_base import AlbumBase
>>> from datetime import timedelta

>>> a1 = AlbumBase('The Dark Side of the Moon', 'Pink Floyd', 10)
>>> a1.titol
'The Dark Side of the Moon'
>>> a1.autor
'Pink Floyd'
>>> len(a1)
10
>>> a1[0].titol
''
>>> a1[0].durada
datetime.timedelta(0)
>>> a1[0] = PeçaMusical('Speak to Me', timedelta(minutes=1, seconds=20))
>>> a1[0].titol
'Speak to Me'
>>> a1[0].durada
datetime.timedelta(seconds=80)
>>> a1[4] = PeçaMusical('The Great Gig in the Sky', timedelta(minutes=23, seconds=45))
>>> a1[4].titol
'The Great Gig in the Sky'
>>> a1[4].durada
datetime.timedelta(seconds=1425)

--fi-enunciat

>>> np = 5
>>> a0 = AlbumBase('A0', 'T0', np)

>>> print(a0.titol)
A0
>>> print(a0.autor)
T0
>>> la0 = len(a0)
>>> print(la0)
5
>>> pb = PeçaMusical('', timedelta(minutes=0, seconds=0))
>>> for i in range(np):
...   assert a0[i] == pb

>>> pb0 = PeçaMusical('p0-0', timedelta(minutes=0, seconds=0))
>>> a0[0] = pb0
>>> a0[0] is pb0
True

>>> pb1 = PeçaMusical('p0-1', timedelta(minutes=0, seconds=1))
>>> a0[1] = pb1
>>> a0[1] is pb1
True

>>> pb2 = PeçaMusical('p0-2', timedelta(minutes=0, seconds=2))
>>> a0[2] = pb2
>>> a0[2] is pb2
True

>>> pb3 = PeçaMusical('p0-3', timedelta(minutes=0, seconds=3))
>>> a0[3] = pb3
>>> a0[3] is pb3
True

>>> pb4 = PeçaMusical('p0-4', timedelta(minutes=0, seconds=4))
>>> a0[4] = pb4
>>> a0[4] is pb4
True

>>> np = 6
>>> a1 = AlbumBase('A1', 'T1', 6)

>>> print(a1.titol)
A1
>>> print(a1.autor)
T1
>>> la1 = len(a1)
>>> print(la1)
6
>>> pb1 in a0
True
>>> pb2 in a0
True
>>> pb5 = PeçaMusical('p0-5', timedelta(minutes=1, seconds=25))
>>> pb5 in a0
False

>>> pb = PeçaMusical('', timedelta(minutes=0, seconds=0))
>>> for i in range(np):
...   assert a1[i] == pb

>>> pb = PeçaMusical('p1-0', timedelta(minutes=1, seconds=0))
>>> a1[0] = pb
>>> a1[0] is pb
True

>>> pb = PeçaMusical('p1-1', timedelta(minutes=1, seconds=1))
>>> a1[1] = pb
>>> a1[1] is pb
True

>>> pb = PeçaMusical('p1-2', timedelta(minutes=1, seconds=2))
>>> a1[2] = pb
>>> a1[2] is pb
True

>>> pb = PeçaMusical('p1-3', timedelta(minutes=1, seconds=3))
>>> a1[3] = pb
>>> a1[3] is pb
True

>>> pb = PeçaMusical('p1-4', timedelta(minutes=1, seconds=4))
>>> a1[4] = pb
>>> a1[4] is pb
True

>>> pb = PeçaMusical('p1-5', timedelta(minutes=1, seconds=5))
>>> a1[5] = pb
>>> a1[5] is pb
True

>>> np = 6
>>> a2 = AlbumBase('A2', 'T2', 6)

>>> print(a2.titol)
A2
>>> print(a2.autor)
T2
>>> la2 = len(a2)
>>> print(la2)
6
>>> pb = PeçaMusical('', timedelta(minutes=0, seconds=0))
>>> for i in range(np):
...   assert a2[i] == pb

>>> pb = PeçaMusical('p2-0', timedelta(minutes=2, seconds=0))
>>> a2[0] = pb
>>> a2[0] is pb
True

>>> pb = PeçaMusical('p2-1', timedelta(minutes=2, seconds=1))
>>> a2[1] = pb
>>> a2[1] is pb
True

>>> pb = PeçaMusical('p2-2', timedelta(minutes=2, seconds=2))
>>> a2[2] = pb
>>> a2[2] is pb
True

>>> pb = PeçaMusical('p2-3', timedelta(minutes=2, seconds=3))
>>> a2[3] = pb
>>> a2[3] is pb
True

>>> pb = PeçaMusical('p2-4', timedelta(minutes=2, seconds=4))
>>> a2[4] = pb
>>> a2[4] is pb
True

>>> pb = PeçaMusical('p2-5', timedelta(minutes=2, seconds=5))
>>> a2[5] = pb
>>> a2[5] is pb
True

>>> np = 10
>>> a3 = AlbumBase('A3', 'T3', 10)

>>> print(a3.titol)
A3
>>> print(a3.autor)
T3
>>> la3 = len(a3)
>>> print(la3)
10
>>> pb = PeçaMusical('', timedelta(minutes=0, seconds=0))
>>> for i in range(np):
...   assert a3[i] == pb

>>> pb = PeçaMusical('p3-0', timedelta(minutes=3, seconds=0))
>>> a3[0] = pb
>>> a3[0] is pb
True

>>> pb = PeçaMusical('p3-1', timedelta(minutes=3, seconds=1))
>>> a3[1] = pb
>>> a3[1] is pb
True

>>> pb = PeçaMusical('p3-2', timedelta(minutes=3, seconds=2))
>>> a3[2] = pb
>>> a3[2] is pb
True

>>> pb = PeçaMusical('p3-3', timedelta(minutes=3, seconds=3))
>>> a3[3] = pb
>>> a3[3] is pb
True

>>> pb = PeçaMusical('p3-4', timedelta(minutes=3, seconds=4))
>>> a3[4] = pb
>>> a3[4] is pb
True

>>> pb = PeçaMusical('p3-5', timedelta(minutes=3, seconds=5))
>>> a3[5] = pb
>>> a3[5] is pb
True

>>> pb = PeçaMusical('p3-6', timedelta(minutes=3, seconds=6))
>>> a3[6] = pb
>>> a3[6] is pb
True

>>> pb = PeçaMusical('p3-7', timedelta(minutes=3, seconds=7))
>>> a3[7] = pb
>>> a3[7] is pb
True

>>> pb = PeçaMusical('p3-8', timedelta(minutes=3, seconds=8))
>>> a3[8] = pb
>>> a3[8] is pb
True

>>> pb = PeçaMusical('p3-9', timedelta(minutes=3, seconds=9))
>>> a3[9] = pb
>>> a3[9] is pb
True

>>> np = 7
>>> a4 = AlbumBase('A4', 'T4', 7)

>>> print(a4.titol)
A4
>>> print(a4.autor)
T4
>>> la4 = len(a4)
>>> print(la4)
7
>>> pb = PeçaMusical('', timedelta(minutes=0, seconds=0))
>>> for i in range(np):
...   assert a4[i] == pb

>>> pb = PeçaMusical('p4-0', timedelta(minutes=4, seconds=0))
>>> a4[0] = pb
>>> a4[0] is pb
True

>>> pb = PeçaMusical('p4-1', timedelta(minutes=4, seconds=1))
>>> a4[1] = pb
>>> a4[1] is pb
True

>>> pb = PeçaMusical('p4-2', timedelta(minutes=4, seconds=2))
>>> a4[2] = pb
>>> a4[2] is pb
True

>>> pb = PeçaMusical('p4-3', timedelta(minutes=4, seconds=3))
>>> a4[3] = pb
>>> a4[3] is pb
True

>>> pb = PeçaMusical('p4-4', timedelta(minutes=4, seconds=4))
>>> a4[4] = pb
>>> a4[4] is pb
True

>>> pb = PeçaMusical('p4-5', timedelta(minutes=4, seconds=5))
>>> a4[5] = pb
>>> a4[5] is pb
True

>>> pb = PeçaMusical('p4-6', timedelta(minutes=4, seconds=6))
>>> a4[6] = pb
>>> a4[6] is pb
True