lbry-sdk/tests/unit/dht/serialization/test_bencoding.py
2019-03-14 18:45:56 -04:00

65 lines
2.5 KiB
Python

import unittest
from lbrynet.dht.serialization.bencoding import _bencode, bencode, bdecode, DecodeError
class EncodeDecodeTest(unittest.TestCase):
def test_fail_with_not_dict(self):
with self.assertRaises(TypeError):
bencode(1)
with self.assertRaises(TypeError):
bencode(b'derp')
with self.assertRaises(TypeError):
bencode('derp')
with self.assertRaises(TypeError):
bencode([b'derp'])
with self.assertRaises(TypeError):
bencode([object()])
with self.assertRaises(TypeError):
bencode({b'derp': object()})
def test_fail_bad_type(self):
with self.assertRaises(DecodeError):
bdecode(b'd4le', True)
def test_integer(self):
self.assertEqual(_bencode(42), b'i42e')
self.assertEqual(bdecode(b'i42e', True), 42)
def test_bytes(self):
self.assertEqual(_bencode(b''), b'0:')
self.assertEqual(_bencode(b'spam'), b'4:spam')
self.assertEqual(_bencode(b'4:spam'), b'6:4:spam')
self.assertEqual(_bencode(bytearray(b'spam')), b'4:spam')
self.assertEqual(bdecode(b'0:', True), b'')
self.assertEqual(bdecode(b'4:spam', True), b'spam')
self.assertEqual(bdecode(b'6:4:spam', True), b'4:spam')
def test_string(self):
self.assertEqual(_bencode(''), b'0:')
self.assertEqual(_bencode('spam'), b'4:spam')
self.assertEqual(_bencode('4:spam'), b'6:4:spam')
def test_list(self):
self.assertEqual(_bencode([b'spam', 42]), b'l4:spami42ee')
self.assertEqual(bdecode(b'l4:spami42ee', True), [b'spam', 42])
def test_dict(self):
self.assertEqual(bencode({b'foo': 42, b'bar': b'spam'}), b'd3:bar4:spam3:fooi42ee')
self.assertEqual(bdecode(b'd3:bar4:spam3:fooi42ee'), {b'foo': 42, b'bar': b'spam'})
def test_mixed(self):
self.assertEqual(_bencode(
[[b'abc', b'127.0.0.1', 1919], [b'def', b'127.0.0.1', 1921]]),
b'll3:abc9:127.0.0.1i1919eel3:def9:127.0.0.1i1921eee'
)
self.assertEqual(bdecode(
b'll3:abc9:127.0.0.1i1919eel3:def9:127.0.0.1i1921eee', True),
[[b'abc', b'127.0.0.1', 1919], [b'def', b'127.0.0.1', 1921]]
)
def test_decode_error(self):
self.assertRaises(DecodeError, bdecode, b'abcdefghijklmnopqrstuvwxyz', True)
self.assertRaises(DecodeError, bdecode, b'', True)
self.assertRaises(DecodeError, bdecode, b'l4:spami42ee')