ui: refactor `readconfig()` into a form that can consume resources
The old form can't completely go away, because files outside of packages still
need to be read. The name passed in here is a tuple of `package name, resource`
as needed by the resource API.
I like the idea of stating the config file is embedded in the executable by
listing is as `exe!package.resource`. This would be consistent with how
`debuginstall` points to the executable for the python executable, lib, and
installed modules. While in practice the filesystem path is available from the
backing ResourceReader when the resource is opened, it is a relative path on py2
and absolute on py3. Further, while this would show in the `hg config` output
for each option if set as such here, it doesn't show in the `reading from...`
line when `--debug` is used. The file isn't actually open where that prints, so
there's no way I see to get that info there. So I opted for the simple prefix
to distinguish resources from files.
Differential Revision: https://phab.mercurial-scm.org/D7775
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', b'\x43foo',]) # empty array
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, r'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, r'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] * 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', b'\x01',] # array of 2 elements # integer 1
)
with self.assertRaisesRegex(
cborutil.CBORDecodeError, 'input data not complete'
):
cborutil.decodeall(encoded)
if __name__ == '__main__':
import silenttestrunner
silenttestrunner.main(__name__)