Mercurial > hg
view tests/test-cbor.py @ 41795:b59676077654 stable
test: stabilize bundle generation for test-sparse-revlog.t
To reduce the instability in the bundle binary content, we force it to contains
delta against p1 in all cases.
In the previous changeset, we already stabilized the processing of the bundle.
So we don't see any output change in the test itself.
| author | Pierre-Yves David <pierre-yves.david@octobus.net> |
|---|---|
| date | Sun, 24 Feb 2019 19:56:46 +0100 |
| parents | a9905045b992 |
| children | 1ea1bba1c5be |
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from __future__ import absolute_import import os import sys import unittest # TODO migrate to canned cbor test strings and stop using thirdparty.cbor tpp = os.path.normpath(os.path.join(os.path.dirname(__file__), '..', 'mercurial', 'thirdparty')) if not os.path.exists(tpp): # skip, not in a repo sys.exit(80) sys.path[0:0] = [tpp] import cbor del sys.path[0] from mercurial.utils import ( cborutil, ) class TestCase(unittest.TestCase): if not getattr(unittest.TestCase, 'assertRaisesRegex', False): # Python 3.7 deprecates the regex*p* version, but 2.7 lacks # the regex version. assertRaisesRegex = (# camelcase-required unittest.TestCase.assertRaisesRegexp) def loadit(it): return cbor.loads(b''.join(it)) class BytestringTests(TestCase): def testsimple(self): self.assertEqual( list(cborutil.streamencode(b'foobar')), [b'\x46', b'foobar']) self.assertEqual( loadit(cborutil.streamencode(b'foobar')), b'foobar') self.assertEqual(cborutil.decodeall(b'\x46foobar'), [b'foobar']) self.assertEqual(cborutil.decodeall(b'\x46foobar\x45fizbi'), [b'foobar', b'fizbi']) def testlong(self): source = b'x' * 1048576 self.assertEqual(loadit(cborutil.streamencode(source)), source) encoded = b''.join(cborutil.streamencode(source)) self.assertEqual(cborutil.decodeall(encoded), [source]) def testfromiter(self): # This is the example from RFC 7049 Section 2.2.2. source = [b'\xaa\xbb\xcc\xdd', b'\xee\xff\x99'] self.assertEqual( list(cborutil.streamencodebytestringfromiter(source)), [ b'\x5f', b'\x44', b'\xaa\xbb\xcc\xdd', b'\x43', b'\xee\xff\x99', b'\xff', ]) self.assertEqual( loadit(cborutil.streamencodebytestringfromiter(source)), b''.join(source)) self.assertEqual(cborutil.decodeall(b'\x5f\x44\xaa\xbb\xcc\xdd' b'\x43\xee\xff\x99\xff'), [b'\xaa\xbb\xcc\xdd', b'\xee\xff\x99', b'']) for i, chunk in enumerate( cborutil.decodeall(b'\x5f\x44\xaa\xbb\xcc\xdd' b'\x43\xee\xff\x99\xff')): self.assertIsInstance(chunk, cborutil.bytestringchunk) if i == 0: self.assertTrue(chunk.isfirst) else: self.assertFalse(chunk.isfirst) if i == 2: self.assertTrue(chunk.islast) else: self.assertFalse(chunk.islast) def testfromiterlarge(self): source = [b'a' * 16, b'b' * 128, b'c' * 1024, b'd' * 1048576] self.assertEqual( loadit(cborutil.streamencodebytestringfromiter(source)), b''.join(source)) def testindefinite(self): source = b'\x00\x01\x02\x03' + b'\xff' * 16384 it = cborutil.streamencodeindefinitebytestring(source, chunksize=2) self.assertEqual(next(it), b'\x5f') self.assertEqual(next(it), b'\x42') self.assertEqual(next(it), b'\x00\x01') self.assertEqual(next(it), b'\x42') self.assertEqual(next(it), b'\x02\x03') self.assertEqual(next(it), b'\x42') self.assertEqual(next(it), b'\xff\xff') dest = b''.join(cborutil.streamencodeindefinitebytestring( source, chunksize=42)) self.assertEqual(cbor.loads(dest), source) self.assertEqual(b''.join(cborutil.decodeall(dest)), source) for chunk in cborutil.decodeall(dest): self.assertIsInstance(chunk, cborutil.bytestringchunk) self.assertIn(len(chunk), (0, 8, 42)) encoded = b'\x5f\xff' b = cborutil.decodeall(encoded) self.assertEqual(b, [b'']) self.assertTrue(b[0].isfirst) self.assertTrue(b[0].islast) def testdecodevariouslengths(self): for i in (0, 1, 22, 23, 24, 25, 254, 255, 256, 65534, 65535, 65536): source = b'x' * i encoded = b''.join(cborutil.streamencode(source)) if len(source) < 24: hlen = 1 elif len(source) < 256: hlen = 2 elif len(source) < 65536: hlen = 3 elif len(source) < 1048576: hlen = 5 self.assertEqual(cborutil.decodeitem(encoded), (True, source, hlen + len(source), cborutil.SPECIAL_NONE)) def testpartialdecode(self): encoded = b''.join(cborutil.streamencode(b'foobar')) self.assertEqual(cborutil.decodeitem(encoded[0:1]), (False, None, -6, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:2]), (False, None, -5, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:3]), (False, None, -4, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:4]), (False, None, -3, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:5]), (False, None, -2, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:6]), (False, None, -1, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:7]), (True, b'foobar', 7, cborutil.SPECIAL_NONE)) def testpartialdecodevariouslengths(self): lens = [ 2, 3, 10, 23, 24, 25, 31, 100, 254, 255, 256, 257, 16384, 65534, 65535, 65536, 65537, 131071, 131072, 131073, 1048575, 1048576, 1048577, ] for size in lens: if size < 24: hlen = 1 elif size < 2**8: hlen = 2 elif size < 2**16: hlen = 3 elif size < 2**32: hlen = 5 else: assert False source = b'x' * size encoded = b''.join(cborutil.streamencode(source)) res = cborutil.decodeitem(encoded[0:1]) if hlen > 1: self.assertEqual(res, (False, None, -(hlen - 1), cborutil.SPECIAL_NONE)) else: self.assertEqual(res, (False, None, -(size + hlen - 1), cborutil.SPECIAL_NONE)) # Decoding partial header reports remaining header size. for i in range(hlen - 1): self.assertEqual(cborutil.decodeitem(encoded[0:i + 1]), (False, None, -(hlen - i - 1), cborutil.SPECIAL_NONE)) # Decoding complete header reports item size. self.assertEqual(cborutil.decodeitem(encoded[0:hlen]), (False, None, -size, cborutil.SPECIAL_NONE)) # Decoding single byte after header reports item size - 1 self.assertEqual(cborutil.decodeitem(encoded[0:hlen + 1]), (False, None, -(size - 1), cborutil.SPECIAL_NONE)) # Decoding all but the last byte reports -1 needed. self.assertEqual(cborutil.decodeitem(encoded[0:hlen + size - 1]), (False, None, -1, cborutil.SPECIAL_NONE)) # Decoding last byte retrieves value. self.assertEqual(cborutil.decodeitem(encoded[0:hlen + size]), (True, source, hlen + size, cborutil.SPECIAL_NONE)) def testindefinitepartialdecode(self): encoded = b''.join(cborutil.streamencodebytestringfromiter( [b'foobar', b'biz'])) # First item should be begin of bytestring special. self.assertEqual(cborutil.decodeitem(encoded[0:1]), (True, None, 1, cborutil.SPECIAL_START_INDEFINITE_BYTESTRING)) # Second item should be the first chunk. But only available when # we give it 7 bytes (1 byte header + 6 byte chunk). self.assertEqual(cborutil.decodeitem(encoded[1:2]), (False, None, -6, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[1:3]), (False, None, -5, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[1:4]), (False, None, -4, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[1:5]), (False, None, -3, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[1:6]), (False, None, -2, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[1:7]), (False, None, -1, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[1:8]), (True, b'foobar', 7, cborutil.SPECIAL_NONE)) # Third item should be second chunk. But only available when # we give it 4 bytes (1 byte header + 3 byte chunk). self.assertEqual(cborutil.decodeitem(encoded[8:9]), (False, None, -3, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[8:10]), (False, None, -2, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[8:11]), (False, None, -1, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[8:12]), (True, b'biz', 4, cborutil.SPECIAL_NONE)) # Fourth item should be end of indefinite stream marker. self.assertEqual(cborutil.decodeitem(encoded[12:13]), (True, None, 1, cborutil.SPECIAL_INDEFINITE_BREAK)) # Now test the behavior when going through the decoder. self.assertEqual(cborutil.sansiodecoder().decode(encoded[0:1]), (False, 1, 0)) self.assertEqual(cborutil.sansiodecoder().decode(encoded[0:2]), (False, 1, 6)) self.assertEqual(cborutil.sansiodecoder().decode(encoded[0:3]), (False, 1, 5)) self.assertEqual(cborutil.sansiodecoder().decode(encoded[0:4]), (False, 1, 4)) self.assertEqual(cborutil.sansiodecoder().decode(encoded[0:5]), (False, 1, 3)) self.assertEqual(cborutil.sansiodecoder().decode(encoded[0:6]), (False, 1, 2)) self.assertEqual(cborutil.sansiodecoder().decode(encoded[0:7]), (False, 1, 1)) self.assertEqual(cborutil.sansiodecoder().decode(encoded[0:8]), (True, 8, 0)) self.assertEqual(cborutil.sansiodecoder().decode(encoded[0:9]), (True, 8, 3)) self.assertEqual(cborutil.sansiodecoder().decode(encoded[0:10]), (True, 8, 2)) self.assertEqual(cborutil.sansiodecoder().decode(encoded[0:11]), (True, 8, 1)) self.assertEqual(cborutil.sansiodecoder().decode(encoded[0:12]), (True, 12, 0)) self.assertEqual(cborutil.sansiodecoder().decode(encoded[0:13]), (True, 13, 0)) decoder = cborutil.sansiodecoder() decoder.decode(encoded[0:8]) values = decoder.getavailable() self.assertEqual(values, [b'foobar']) self.assertTrue(values[0].isfirst) self.assertFalse(values[0].islast) self.assertEqual(decoder.decode(encoded[8:12]), (True, 4, 0)) values = decoder.getavailable() self.assertEqual(values, [b'biz']) self.assertFalse(values[0].isfirst) self.assertFalse(values[0].islast) self.assertEqual(decoder.decode(encoded[12:]), (True, 1, 0)) values = decoder.getavailable() self.assertEqual(values, [b'']) self.assertFalse(values[0].isfirst) self.assertTrue(values[0].islast) class StringTests(TestCase): def testdecodeforbidden(self): encoded = b'\x63foo' with self.assertRaisesRegex(cborutil.CBORDecodeError, 'string major type not supported'): cborutil.decodeall(encoded) class IntTests(TestCase): def testsmall(self): self.assertEqual(list(cborutil.streamencode(0)), [b'\x00']) self.assertEqual(cborutil.decodeall(b'\x00'), [0]) self.assertEqual(list(cborutil.streamencode(1)), [b'\x01']) self.assertEqual(cborutil.decodeall(b'\x01'), [1]) self.assertEqual(list(cborutil.streamencode(2)), [b'\x02']) self.assertEqual(cborutil.decodeall(b'\x02'), [2]) self.assertEqual(list(cborutil.streamencode(3)), [b'\x03']) self.assertEqual(cborutil.decodeall(b'\x03'), [3]) self.assertEqual(list(cborutil.streamencode(4)), [b'\x04']) self.assertEqual(cborutil.decodeall(b'\x04'), [4]) # Multiple value decode works. self.assertEqual(cborutil.decodeall(b'\x00\x01\x02\x03\x04'), [0, 1, 2, 3, 4]) def testnegativesmall(self): self.assertEqual(list(cborutil.streamencode(-1)), [b'\x20']) self.assertEqual(cborutil.decodeall(b'\x20'), [-1]) self.assertEqual(list(cborutil.streamencode(-2)), [b'\x21']) self.assertEqual(cborutil.decodeall(b'\x21'), [-2]) self.assertEqual(list(cborutil.streamencode(-3)), [b'\x22']) self.assertEqual(cborutil.decodeall(b'\x22'), [-3]) self.assertEqual(list(cborutil.streamencode(-4)), [b'\x23']) self.assertEqual(cborutil.decodeall(b'\x23'), [-4]) self.assertEqual(list(cborutil.streamencode(-5)), [b'\x24']) self.assertEqual(cborutil.decodeall(b'\x24'), [-5]) # Multiple value decode works. self.assertEqual(cborutil.decodeall(b'\x20\x21\x22\x23\x24'), [-1, -2, -3, -4, -5]) def testrange(self): for i in range(-70000, 70000, 10): encoded = b''.join(cborutil.streamencode(i)) self.assertEqual(encoded, cbor.dumps(i)) self.assertEqual(cborutil.decodeall(encoded), [i]) def testdecodepartialubyte(self): encoded = b''.join(cborutil.streamencode(250)) self.assertEqual(cborutil.decodeitem(encoded[0:1]), (False, None, -1, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:2]), (True, 250, 2, cborutil.SPECIAL_NONE)) def testdecodepartialbyte(self): encoded = b''.join(cborutil.streamencode(-42)) self.assertEqual(cborutil.decodeitem(encoded[0:1]), (False, None, -1, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:2]), (True, -42, 2, cborutil.SPECIAL_NONE)) def testdecodepartialushort(self): encoded = b''.join(cborutil.streamencode(2**15)) self.assertEqual(cborutil.decodeitem(encoded[0:1]), (False, None, -2, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:2]), (False, None, -1, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:5]), (True, 2**15, 3, cborutil.SPECIAL_NONE)) def testdecodepartialshort(self): encoded = b''.join(cborutil.streamencode(-1024)) self.assertEqual(cborutil.decodeitem(encoded[0:1]), (False, None, -2, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:2]), (False, None, -1, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:3]), (True, -1024, 3, cborutil.SPECIAL_NONE)) def testdecodepartialulong(self): encoded = b''.join(cborutil.streamencode(2**28)) self.assertEqual(cborutil.decodeitem(encoded[0:1]), (False, None, -4, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:2]), (False, None, -3, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:3]), (False, None, -2, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:4]), (False, None, -1, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:5]), (True, 2**28, 5, cborutil.SPECIAL_NONE)) def testdecodepartiallong(self): encoded = b''.join(cborutil.streamencode(-1048580)) self.assertEqual(cborutil.decodeitem(encoded[0:1]), (False, None, -4, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:2]), (False, None, -3, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:3]), (False, None, -2, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:4]), (False, None, -1, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:5]), (True, -1048580, 5, cborutil.SPECIAL_NONE)) def testdecodepartialulonglong(self): encoded = b''.join(cborutil.streamencode(2**32)) self.assertEqual(cborutil.decodeitem(encoded[0:1]), (False, None, -8, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:2]), (False, None, -7, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:3]), (False, None, -6, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:4]), (False, None, -5, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:5]), (False, None, -4, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:6]), (False, None, -3, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:7]), (False, None, -2, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:8]), (False, None, -1, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:9]), (True, 2**32, 9, cborutil.SPECIAL_NONE)) with self.assertRaisesRegex( cborutil.CBORDecodeError, 'input data not fully consumed'): cborutil.decodeall(encoded[0:1]) with self.assertRaisesRegex( cborutil.CBORDecodeError, 'input data not fully consumed'): cborutil.decodeall(encoded[0:2]) def testdecodepartiallonglong(self): encoded = b''.join(cborutil.streamencode(-7000000000)) self.assertEqual(cborutil.decodeitem(encoded[0:1]), (False, None, -8, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:2]), (False, None, -7, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:3]), (False, None, -6, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:4]), (False, None, -5, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:5]), (False, None, -4, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:6]), (False, None, -3, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:7]), (False, None, -2, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:8]), (False, None, -1, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:9]), (True, -7000000000, 9, cborutil.SPECIAL_NONE)) class ArrayTests(TestCase): def testempty(self): self.assertEqual(list(cborutil.streamencode([])), [b'\x80']) self.assertEqual(loadit(cborutil.streamencode([])), []) self.assertEqual(cborutil.decodeall(b'\x80'), [[]]) def testbasic(self): source = [b'foo', b'bar', 1, -10] chunks = [ b'\x84', b'\x43', b'foo', b'\x43', b'bar', b'\x01', b'\x29'] self.assertEqual(list(cborutil.streamencode(source)), chunks) self.assertEqual(cborutil.decodeall(b''.join(chunks)), [source]) def testemptyfromiter(self): self.assertEqual(b''.join(cborutil.streamencodearrayfromiter([])), b'\x9f\xff') with self.assertRaisesRegex(cborutil.CBORDecodeError, 'indefinite length uint not allowed'): cborutil.decodeall(b'\x9f\xff') def testfromiter1(self): source = [b'foo'] self.assertEqual(list(cborutil.streamencodearrayfromiter(source)), [ b'\x9f', b'\x43', b'foo', b'\xff', ]) dest = b''.join(cborutil.streamencodearrayfromiter(source)) self.assertEqual(cbor.loads(dest), source) with self.assertRaisesRegex(cborutil.CBORDecodeError, 'indefinite length uint not allowed'): cborutil.decodeall(dest) def testtuple(self): source = (b'foo', None, 42) encoded = b''.join(cborutil.streamencode(source)) self.assertEqual(cbor.loads(encoded), list(source)) self.assertEqual(cborutil.decodeall(encoded), [list(source)]) def testpartialdecode(self): source = list(range(4)) encoded = b''.join(cborutil.streamencode(source)) self.assertEqual(cborutil.decodeitem(encoded[0:1]), (True, 4, 1, cborutil.SPECIAL_START_ARRAY)) self.assertEqual(cborutil.decodeitem(encoded[0:2]), (True, 4, 1, cborutil.SPECIAL_START_ARRAY)) source = list(range(23)) encoded = b''.join(cborutil.streamencode(source)) self.assertEqual(cborutil.decodeitem(encoded[0:1]), (True, 23, 1, cborutil.SPECIAL_START_ARRAY)) self.assertEqual(cborutil.decodeitem(encoded[0:2]), (True, 23, 1, cborutil.SPECIAL_START_ARRAY)) source = list(range(24)) encoded = b''.join(cborutil.streamencode(source)) self.assertEqual(cborutil.decodeitem(encoded[0:1]), (False, None, -1, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:2]), (True, 24, 2, cborutil.SPECIAL_START_ARRAY)) self.assertEqual(cborutil.decodeitem(encoded[0:3]), (True, 24, 2, cborutil.SPECIAL_START_ARRAY)) source = list(range(256)) encoded = b''.join(cborutil.streamencode(source)) self.assertEqual(cborutil.decodeitem(encoded[0:1]), (False, None, -2, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:2]), (False, None, -1, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:3]), (True, 256, 3, cborutil.SPECIAL_START_ARRAY)) self.assertEqual(cborutil.decodeitem(encoded[0:4]), (True, 256, 3, cborutil.SPECIAL_START_ARRAY)) def testnested(self): source = [[], [], [[], [], []]] encoded = b''.join(cborutil.streamencode(source)) self.assertEqual(cborutil.decodeall(encoded), [source]) source = [True, None, [True, 0, 2], [None], [], [[[]], -87]] encoded = b''.join(cborutil.streamencode(source)) self.assertEqual(cborutil.decodeall(encoded), [source]) # A set within an array. source = [None, {b'foo', b'bar', None, False}, set()] encoded = b''.join(cborutil.streamencode(source)) self.assertEqual(cborutil.decodeall(encoded), [source]) # A map within an array. source = [None, {}, {b'foo': b'bar', True: False}, [{}]] encoded = b''.join(cborutil.streamencode(source)) self.assertEqual(cborutil.decodeall(encoded), [source]) def testindefinitebytestringvalues(self): # Single value array whose value is an empty indefinite bytestring. encoded = b'\x81\x5f\x40\xff' with self.assertRaisesRegex(cborutil.CBORDecodeError, 'indefinite length bytestrings not ' 'allowed as array values'): cborutil.decodeall(encoded) class SetTests(TestCase): def testempty(self): self.assertEqual(list(cborutil.streamencode(set())), [ b'\xd9\x01\x02', b'\x80', ]) self.assertEqual(cborutil.decodeall(b'\xd9\x01\x02\x80'), [set()]) def testset(self): source = {b'foo', None, 42} encoded = b''.join(cborutil.streamencode(source)) self.assertEqual(cbor.loads(encoded), source) self.assertEqual(cborutil.decodeall(encoded), [source]) def testinvalidtag(self): # Must use array to encode sets. encoded = b'\xd9\x01\x02\xa0' with self.assertRaisesRegex(cborutil.CBORDecodeError, 'expected array after finite set ' 'semantic tag'): cborutil.decodeall(encoded) def testpartialdecode(self): # Semantic tag item will be 3 bytes. Set header will be variable # depending on length. encoded = b''.join(cborutil.streamencode({i for i in range(23)})) self.assertEqual(cborutil.decodeitem(encoded[0:1]), (False, None, -2, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:2]), (False, None, -1, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:3]), (False, None, -1, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:4]), (True, 23, 4, cborutil.SPECIAL_START_SET)) self.assertEqual(cborutil.decodeitem(encoded[0:5]), (True, 23, 4, cborutil.SPECIAL_START_SET)) encoded = b''.join(cborutil.streamencode({i for i in range(24)})) self.assertEqual(cborutil.decodeitem(encoded[0:1]), (False, None, -2, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:2]), (False, None, -1, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:3]), (False, None, -1, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:4]), (False, None, -1, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:5]), (True, 24, 5, cborutil.SPECIAL_START_SET)) self.assertEqual(cborutil.decodeitem(encoded[0:6]), (True, 24, 5, cborutil.SPECIAL_START_SET)) encoded = b''.join(cborutil.streamencode({i for i in range(256)})) self.assertEqual(cborutil.decodeitem(encoded[0:1]), (False, None, -2, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:2]), (False, None, -1, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:3]), (False, None, -1, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:4]), (False, None, -2, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:5]), (False, None, -1, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:6]), (True, 256, 6, cborutil.SPECIAL_START_SET)) def testinvalidvalue(self): encoded = b''.join([ b'\xd9\x01\x02', # semantic tag b'\x81', # array of size 1 b'\x5f\x43foo\xff', # indefinite length bytestring "foo" ]) with self.assertRaisesRegex(cborutil.CBORDecodeError, 'indefinite length bytestrings not ' 'allowed as set values'): cborutil.decodeall(encoded) encoded = b''.join([ b'\xd9\x01\x02', b'\x81', b'\x80', # empty array ]) with self.assertRaisesRegex(cborutil.CBORDecodeError, 'collections not allowed as set values'): cborutil.decodeall(encoded) encoded = b''.join([ b'\xd9\x01\x02', b'\x81', b'\xa0', # empty map ]) with self.assertRaisesRegex(cborutil.CBORDecodeError, 'collections not allowed as set values'): cborutil.decodeall(encoded) encoded = b''.join([ b'\xd9\x01\x02', b'\x81', b'\xd9\x01\x02\x81\x01', # set with integer 1 ]) with self.assertRaisesRegex(cborutil.CBORDecodeError, 'collections not allowed as set values'): cborutil.decodeall(encoded) class BoolTests(TestCase): def testbasic(self): self.assertEqual(list(cborutil.streamencode(True)), [b'\xf5']) self.assertEqual(list(cborutil.streamencode(False)), [b'\xf4']) self.assertIs(loadit(cborutil.streamencode(True)), True) self.assertIs(loadit(cborutil.streamencode(False)), False) self.assertEqual(cborutil.decodeall(b'\xf4'), [False]) self.assertEqual(cborutil.decodeall(b'\xf5'), [True]) self.assertEqual(cborutil.decodeall(b'\xf4\xf5\xf5\xf4'), [False, True, True, False]) class NoneTests(TestCase): def testbasic(self): self.assertEqual(list(cborutil.streamencode(None)), [b'\xf6']) self.assertIs(loadit(cborutil.streamencode(None)), None) self.assertEqual(cborutil.decodeall(b'\xf6'), [None]) self.assertEqual(cborutil.decodeall(b'\xf6\xf6'), [None, None]) class MapTests(TestCase): def testempty(self): self.assertEqual(list(cborutil.streamencode({})), [b'\xa0']) self.assertEqual(loadit(cborutil.streamencode({})), {}) self.assertEqual(cborutil.decodeall(b'\xa0'), [{}]) def testemptyindefinite(self): self.assertEqual(list(cborutil.streamencodemapfromiter([])), [ b'\xbf', b'\xff']) self.assertEqual(loadit(cborutil.streamencodemapfromiter([])), {}) with self.assertRaisesRegex(cborutil.CBORDecodeError, 'indefinite length uint not allowed'): cborutil.decodeall(b'\xbf\xff') def testone(self): source = {b'foo': b'bar'} self.assertEqual(list(cborutil.streamencode(source)), [ b'\xa1', b'\x43', b'foo', b'\x43', b'bar']) self.assertEqual(loadit(cborutil.streamencode(source)), source) self.assertEqual(cborutil.decodeall(b'\xa1\x43foo\x43bar'), [source]) def testmultiple(self): source = { b'foo': b'bar', b'baz': b'value1', } self.assertEqual(loadit(cborutil.streamencode(source)), source) self.assertEqual( loadit(cborutil.streamencodemapfromiter(source.items())), source) encoded = b''.join(cborutil.streamencode(source)) self.assertEqual(cborutil.decodeall(encoded), [source]) def testcomplex(self): source = { b'key': 1, 2: -10, } self.assertEqual(loadit(cborutil.streamencode(source)), source) self.assertEqual( loadit(cborutil.streamencodemapfromiter(source.items())), source) encoded = b''.join(cborutil.streamencode(source)) self.assertEqual(cborutil.decodeall(encoded), [source]) def testnested(self): source = {b'key1': None, b'key2': {b'sub1': b'sub2'}, b'sub2': {}} encoded = b''.join(cborutil.streamencode(source)) self.assertEqual(cborutil.decodeall(encoded), [source]) source = { b'key1': [], b'key2': [None, False], b'key3': {b'foo', b'bar'}, b'key4': {}, } encoded = b''.join(cborutil.streamencode(source)) self.assertEqual(cborutil.decodeall(encoded), [source]) def testillegalkey(self): encoded = b''.join([ # map header + len 1 b'\xa1', # indefinite length bytestring "foo" in key position b'\x5f\x03foo\xff' ]) with self.assertRaisesRegex(cborutil.CBORDecodeError, 'indefinite length bytestrings not ' 'allowed as map keys'): cborutil.decodeall(encoded) encoded = b''.join([ b'\xa1', b'\x80', # empty array b'\x43foo', ]) with self.assertRaisesRegex(cborutil.CBORDecodeError, 'collections not supported as map keys'): cborutil.decodeall(encoded) def testillegalvalue(self): encoded = b''.join([ b'\xa1', # map headers b'\x43foo', # key b'\x5f\x03bar\xff', # indefinite length value ]) with self.assertRaisesRegex(cborutil.CBORDecodeError, 'indefinite length bytestrings not ' 'allowed as map values'): cborutil.decodeall(encoded) def testpartialdecode(self): source = {b'key1': b'value1'} encoded = b''.join(cborutil.streamencode(source)) self.assertEqual(cborutil.decodeitem(encoded[0:1]), (True, 1, 1, cborutil.SPECIAL_START_MAP)) self.assertEqual(cborutil.decodeitem(encoded[0:2]), (True, 1, 1, cborutil.SPECIAL_START_MAP)) source = {b'key%d' % i: None for i in range(23)} encoded = b''.join(cborutil.streamencode(source)) self.assertEqual(cborutil.decodeitem(encoded[0:1]), (True, 23, 1, cborutil.SPECIAL_START_MAP)) source = {b'key%d' % i: None for i in range(24)} encoded = b''.join(cborutil.streamencode(source)) self.assertEqual(cborutil.decodeitem(encoded[0:1]), (False, None, -1, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:2]), (True, 24, 2, cborutil.SPECIAL_START_MAP)) self.assertEqual(cborutil.decodeitem(encoded[0:3]), (True, 24, 2, cborutil.SPECIAL_START_MAP)) source = {b'key%d' % i: None for i in range(256)} encoded = b''.join(cborutil.streamencode(source)) self.assertEqual(cborutil.decodeitem(encoded[0:1]), (False, None, -2, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:2]), (False, None, -1, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:3]), (True, 256, 3, cborutil.SPECIAL_START_MAP)) self.assertEqual(cborutil.decodeitem(encoded[0:4]), (True, 256, 3, cborutil.SPECIAL_START_MAP)) source = {b'key%d' % i: None for i in range(65536)} encoded = b''.join(cborutil.streamencode(source)) self.assertEqual(cborutil.decodeitem(encoded[0:1]), (False, None, -4, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:2]), (False, None, -3, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:3]), (False, None, -2, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:4]), (False, None, -1, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:5]), (True, 65536, 5, cborutil.SPECIAL_START_MAP)) self.assertEqual(cborutil.decodeitem(encoded[0:6]), (True, 65536, 5, cborutil.SPECIAL_START_MAP)) class SemanticTagTests(TestCase): def testdecodeforbidden(self): for i in range(500): if i == cborutil.SEMANTIC_TAG_FINITE_SET: continue tag = cborutil.encodelength(cborutil.MAJOR_TYPE_SEMANTIC, i) encoded = tag + cborutil.encodelength(cborutil.MAJOR_TYPE_UINT, 42) # Partial decode is incomplete. if i < 24: pass elif i < 256: self.assertEqual(cborutil.decodeitem(encoded[0:1]), (False, None, -1, cborutil.SPECIAL_NONE)) elif i < 65536: self.assertEqual(cborutil.decodeitem(encoded[0:1]), (False, None, -2, cborutil.SPECIAL_NONE)) self.assertEqual(cborutil.decodeitem(encoded[0:2]), (False, None, -1, cborutil.SPECIAL_NONE)) with self.assertRaisesRegex(cborutil.CBORDecodeError, 'semantic tag \d+ not allowed'): cborutil.decodeitem(encoded) class SpecialTypesTests(TestCase): def testforbiddentypes(self): for i in range(256): if i == cborutil.SUBTYPE_FALSE: continue elif i == cborutil.SUBTYPE_TRUE: continue elif i == cborutil.SUBTYPE_NULL: continue encoded = cborutil.encodelength(cborutil.MAJOR_TYPE_SPECIAL, i) with self.assertRaisesRegex(cborutil.CBORDecodeError, 'special type \d+ not allowed'): cborutil.decodeitem(encoded) class SansIODecoderTests(TestCase): def testemptyinput(self): decoder = cborutil.sansiodecoder() self.assertEqual(decoder.decode(b''), (False, 0, 0)) class BufferingDecoderTests(TestCase): def testsimple(self): source = [ b'foobar', b'x' * 128, {b'foo': b'bar'}, True, False, None, [None for i in range(128)], ] encoded = b''.join(cborutil.streamencode(source)) for step in range(1, 32): decoder = cborutil.bufferingdecoder() start = 0 while start < len(encoded): decoder.decode(encoded[start:start + step]) start += step self.assertEqual(decoder.getavailable(), [source]) def testbytearray(self): source = b''.join(cborutil.streamencode(b'foobar')) decoder = cborutil.bufferingdecoder() decoder.decode(bytearray(source)) self.assertEqual(decoder.getavailable(), [b'foobar']) class DecodeallTests(TestCase): def testemptyinput(self): self.assertEqual(cborutil.decodeall(b''), []) def testpartialinput(self): encoded = b''.join([ b'\x82', # array of 2 elements b'\x01', # integer 1 ]) with self.assertRaisesRegex(cborutil.CBORDecodeError, 'input data not complete'): cborutil.decodeall(encoded) if __name__ == '__main__': import silenttestrunner silenttestrunner.main(__name__)