def test_unsigned_cases(self):
test_cases = (
(0, [0x0]),
(42, [42]),
(127, [0x7F]),
(128, [0x80, 1]),
(255, [0xFF, 1]),
(0xFFFF, [0xFF, 0xFF, 0b11]),
)
for value, data in test_cases:
expected_data = bytes(data)
encoded_data = unsigned_leb128_encode(value)
self.assertEqual(expected_data, encoded_data)
decoded_value = unsigned_leb128_decode(iter(expected_data))
self.assertEqual(value, decoded_value)
def test_unsigned_wiki_example(self):
""" Test the wikipedia example """
data = unsigned_leb128_encode(624485)
self.assertEqual(bytes([0xE5, 0x8E, 0x26]), data)
self.assertEqual(624485, unsigned_leb128_decode(iter(data)))
def test_invalid_unsigned_number(self):
""" Test negative unsigned number """
with self.assertRaises(ValueError):
unsigned_leb128_encode(-13)