def test_num_nonempty_trucks_doctest() -> None:
"""Test the doctest provided for Fleet.num_nonempty_trucks"""
f = Fleet()
t1 = Truck(1423, 10, 'Toronto')
f.add_truck(t1)
p1 = Parcel(1, 5, 'Buffalo', 'Hamilton')
assert t1.pack(p1) is True
p2 = Parcel(2, 4, 'Toronto', 'Montreal')
assert t1.pack(p2) is True
assert t1.fullness() == 90.0
t2 = Truck(5912, 20, 'Toronto')
f.add_truck(t2)
p3 = Parcel(3, 2, 'New York', 'Windsor')
assert t2.pack(p3) is True
assert t2.fullness() == 10.0
t3 = Truck(1111, 50, 'Toronto')
f.add_truck(t3)
assert f.num_nonempty_trucks() == 2
def test_fullness() -> None:
t = Truck(69, 420, "Toronto")
p = Parcel(4, 42, "Cologne", "Barrie")
t.pack(p)
assert t.fullness() == (42 / 420) * 100
def test_rational_float() -> None:
"""Test if fullness round to one decimal place."""
t = Truck(1, 3, 'Depot')
p = Parcel(1, 1, 'City n', 'aCity A')
t.pack(p)
assert t.fullness() == 33.3