mirror of https://github.com/python/cpython
178 lines
6.5 KiB
Python
Executable File
178 lines
6.5 KiB
Python
Executable File
"""Test the binascii C module."""
|
|
|
|
from test import test_support
|
|
import unittest
|
|
import binascii
|
|
|
|
class BinASCIITest(unittest.TestCase):
|
|
|
|
# Create binary test data
|
|
data = b"The quick brown fox jumps over the lazy dog.\r\n"
|
|
# Be slow so we don't depend on other modules
|
|
data += bytes(range(256))
|
|
data += b"\r\nHello world.\n"
|
|
|
|
def test_exceptions(self):
|
|
# Check module exceptions
|
|
self.assert_(issubclass(binascii.Error, Exception))
|
|
self.assert_(issubclass(binascii.Incomplete, Exception))
|
|
|
|
def test_functions(self):
|
|
# Check presence of all functions
|
|
funcs = []
|
|
for suffix in "base64", "hqx", "uu", "hex":
|
|
prefixes = ["a2b_", "b2a_"]
|
|
if suffix == "hqx":
|
|
prefixes.extend(["crc_", "rlecode_", "rledecode_"])
|
|
for prefix in prefixes:
|
|
name = prefix + suffix
|
|
self.assert_(hasattr(getattr(binascii, name), '__call__'))
|
|
self.assertRaises(TypeError, getattr(binascii, name))
|
|
for name in ("hexlify", "unhexlify"):
|
|
self.assert_(hasattr(getattr(binascii, name), '__call__'))
|
|
self.assertRaises(TypeError, getattr(binascii, name))
|
|
|
|
def test_base64valid(self):
|
|
# Test base64 with valid data
|
|
MAX_BASE64 = 57
|
|
lines = []
|
|
for i in range(0, len(self.data), MAX_BASE64):
|
|
b = self.data[i:i+MAX_BASE64]
|
|
a = binascii.b2a_base64(b)
|
|
lines.append(a)
|
|
res = bytes()
|
|
for line in lines:
|
|
b = binascii.a2b_base64(line)
|
|
res += b
|
|
self.assertEqual(res, self.data)
|
|
|
|
def test_base64invalid(self):
|
|
# Test base64 with random invalid characters sprinkled throughout
|
|
# (This requires a new version of binascii.)
|
|
MAX_BASE64 = 57
|
|
lines = []
|
|
for i in range(0, len(self.data), MAX_BASE64):
|
|
b = self.data[i:i+MAX_BASE64]
|
|
a = binascii.b2a_base64(b)
|
|
lines.append(a)
|
|
|
|
fillers = bytes()
|
|
valid = b"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789+/"
|
|
for i in range(256):
|
|
if i not in valid:
|
|
fillers.append(i)
|
|
def addnoise(line):
|
|
noise = fillers
|
|
ratio = len(line) // len(noise)
|
|
res = bytes()
|
|
while line and noise:
|
|
if len(line) // len(noise) > ratio:
|
|
c, line = line[0], line[1:]
|
|
else:
|
|
c, noise = noise[0], noise[1:]
|
|
res.append(c)
|
|
return res + noise + line
|
|
res = bytes()
|
|
for line in map(addnoise, lines):
|
|
b = binascii.a2b_base64(line)
|
|
res += b
|
|
self.assertEqual(res, self.data)
|
|
|
|
# Test base64 with just invalid characters, which should return
|
|
# empty strings. TBD: shouldn't it raise an exception instead ?
|
|
self.assertEqual(binascii.a2b_base64(fillers), b'')
|
|
|
|
def test_uu(self):
|
|
MAX_UU = 45
|
|
lines = []
|
|
for i in range(0, len(self.data), MAX_UU):
|
|
b = self.data[i:i+MAX_UU]
|
|
a = binascii.b2a_uu(b)
|
|
lines.append(a)
|
|
res = bytes()
|
|
for line in lines:
|
|
b = binascii.a2b_uu(line)
|
|
res += b
|
|
self.assertEqual(res, self.data)
|
|
|
|
self.assertEqual(binascii.a2b_uu(b"\x7f"), b"\x00"*31)
|
|
self.assertEqual(binascii.a2b_uu(b"\x80"), b"\x00"*32)
|
|
self.assertEqual(binascii.a2b_uu(b"\xff"), b"\x00"*31)
|
|
self.assertRaises(binascii.Error, binascii.a2b_uu, b"\xff\x00")
|
|
self.assertRaises(binascii.Error, binascii.a2b_uu, b"!!!!")
|
|
|
|
self.assertRaises(binascii.Error, binascii.b2a_uu, 46*b"!")
|
|
|
|
def test_crc32(self):
|
|
crc = binascii.crc32(b"Test the CRC-32 of")
|
|
crc = binascii.crc32(b" this string.", crc)
|
|
self.assertEqual(crc, 1571220330)
|
|
|
|
self.assertRaises(TypeError, binascii.crc32)
|
|
|
|
# The hqx test is in test_binhex.py
|
|
|
|
def test_hex(self):
|
|
# test hexlification
|
|
s = b'{s\005\000\000\000worldi\002\000\000\000s\005\000\000\000helloi\001\000\000\0000'
|
|
t = binascii.b2a_hex(s)
|
|
u = binascii.a2b_hex(t)
|
|
self.assertEqual(s, u)
|
|
self.assertRaises(binascii.Error, binascii.a2b_hex, t[:-1])
|
|
self.assertRaises(binascii.Error, binascii.a2b_hex, t[:-1] + b'q')
|
|
|
|
# Verify the treatment of Unicode strings
|
|
if test_support.have_unicode:
|
|
self.assertEqual(binascii.hexlify('a'), b'61')
|
|
|
|
def test_qp(self):
|
|
# A test for SF bug 534347 (segfaults without the proper fix)
|
|
try:
|
|
binascii.a2b_qp("", **{1:1})
|
|
except TypeError:
|
|
pass
|
|
else:
|
|
self.fail("binascii.a2b_qp(**{1:1}) didn't raise TypeError")
|
|
self.assertEqual(binascii.a2b_qp(b"= "), b"= ")
|
|
self.assertEqual(binascii.a2b_qp(b"=="), b"=")
|
|
self.assertEqual(binascii.a2b_qp(b"=AX"), b"=AX")
|
|
self.assertRaises(TypeError, binascii.b2a_qp, foo="bar")
|
|
self.assertEqual(binascii.a2b_qp(b"=00\r\n=00"), b"\x00\r\n\x00")
|
|
self.assertEqual(
|
|
binascii.b2a_qp(b"\xff\r\n\xff\n\xff"),
|
|
b"=FF\r\n=FF\r\n=FF"
|
|
)
|
|
self.assertEqual(
|
|
binascii.b2a_qp(b"0"*75+b"\xff\r\n\xff\r\n\xff"),
|
|
b"0"*75+b"=\r\n=FF\r\n=FF\r\n=FF"
|
|
)
|
|
|
|
self.assertEqual(binascii.b2a_qp(b'\0\n'), b'=00\n')
|
|
self.assertEqual(binascii.b2a_qp(b'\0\n', quotetabs=True), b'=00\n')
|
|
self.assertEqual(binascii.b2a_qp(b'foo\tbar\t\n'), b'foo\tbar=09\n')
|
|
self.assertEqual(binascii.b2a_qp(b'foo\tbar\t\n', quotetabs=True),
|
|
b'foo=09bar=09\n')
|
|
|
|
self.assertEqual(binascii.b2a_qp(b'.'), b'=2E')
|
|
self.assertEqual(binascii.b2a_qp(b'.\n'), b'=2E\n')
|
|
self.assertEqual(binascii.b2a_qp(b'a.\n'), b'a.\n')
|
|
|
|
def test_empty_string(self):
|
|
# A test for SF bug #1022953. Make sure SystemError is not raised.
|
|
for n in ['b2a_qp', 'a2b_hex', 'b2a_base64', 'a2b_uu', 'a2b_qp',
|
|
'b2a_hex', 'unhexlify', 'hexlify', 'crc32', 'b2a_hqx',
|
|
'a2b_hqx', 'a2b_base64', 'rlecode_hqx', 'b2a_uu',
|
|
'rledecode_hqx']:
|
|
f = getattr(binascii, n)
|
|
try:
|
|
f(b'')
|
|
except SystemError as err:
|
|
self.fail("%s(b'') raises SystemError: %s" % (n, err))
|
|
binascii.crc_hqx('', 0)
|
|
|
|
def test_main():
|
|
test_support.run_unittest(BinASCIITest)
|
|
|
|
if __name__ == "__main__":
|
|
test_main()
|