def test_reader(l):
n = create_numbering(l)
r = Reader(n)
for i, elt in enumerate(l):
assert r.items_read == i
item = r.next_item()
assert elt == item
def test_pack_unpack():
examples = [
[1, 2, 3, 4, 257, 10000, 13, 15],
[1, 2, 3, 4],
range(1, 10, 2),
[13000, 12000, 10000, 256, 255, 254, 257, -3, -1000]
]
for l in examples:
n = create_numbering(l)
assert unpack_numbering(n) == l
def Numbering(l):
return create_numbering([len(l)] + l) # prefix index to the end of thing
def test_compressing(l):
n = create_numbering(l)
assert len(n.code) <= len(l) * 3
def test_roundtrip(l):
n = create_numbering(l)
assert unpack_numbering(n) == l
def test_compressing(l):
n = create_numbering(l)
assert len(n.code) <= len(l) * 3
def test_roundtrip(l):
n = create_numbering(l)
assert unpack_numbering(n) == l