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cpython/Lib/test/test_base64.py
Matthias Bussonnier c643a967dd Add Python version since deprecation in base64 methods. (#33) 
Allow developers to not have to either test on N Python versions or
looked through multiple versions of the docs to know whether they can
easily update.
2017-03-02 17:21:26 +03:00

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import unittest
from test import support
import base64
import binascii
import os
from array import array
from test.support import script_helper
class LegacyBase64TestCase(unittest.TestCase):
# Legacy API is not as permissive as the modern API
def check_type_errors(self, f):
self.assertRaises(TypeError, f, "")
self.assertRaises(TypeError, f, [])
multidimensional = memoryview(b"1234").cast('B', (2, 2))
self.assertRaises(TypeError, f, multidimensional)
int_data = memoryview(b"1234").cast('I')
self.assertRaises(TypeError, f, int_data)
def test_encodestring_warns(self):
with self.assertWarns(DeprecationWarning):
base64.encodestring(b"www.python.org")
def test_decodestring_warns(self):
with self.assertWarns(DeprecationWarning):
base64.decodestring(b"d3d3LnB5dGhvbi5vcmc=\n")
def test_encodebytes(self):
eq = self.assertEqual
eq(base64.encodebytes(b"www.python.org"), b"d3d3LnB5dGhvbi5vcmc=\n")
eq(base64.encodebytes(b"a"), b"YQ==\n")
eq(base64.encodebytes(b"ab"), b"YWI=\n")
eq(base64.encodebytes(b"abc"), b"YWJj\n")
eq(base64.encodebytes(b""), b"")
eq(base64.encodebytes(b"abcdefghijklmnopqrstuvwxyz"
b"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
b"0123456789!@#0^&*();:<>,. []{}"),
b"YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
b"RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0\nNT"
b"Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==\n")
# Non-bytes
eq(base64.encodebytes(bytearray(b'abc')), b'YWJj\n')
eq(base64.encodebytes(memoryview(b'abc')), b'YWJj\n')
eq(base64.encodebytes(array('B', b'abc')), b'YWJj\n')
self.check_type_errors(base64.encodebytes)
def test_decodebytes(self):
eq = self.assertEqual
eq(base64.decodebytes(b"d3d3LnB5dGhvbi5vcmc=\n"), b"www.python.org")
eq(base64.decodebytes(b"YQ==\n"), b"a")
eq(base64.decodebytes(b"YWI=\n"), b"ab")
eq(base64.decodebytes(b"YWJj\n"), b"abc")
eq(base64.decodebytes(b"YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
b"RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0\nNT"
b"Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==\n"),
b"abcdefghijklmnopqrstuvwxyz"
b"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
b"0123456789!@#0^&*();:<>,. []{}")
eq(base64.decodebytes(b''), b'')
# Non-bytes
eq(base64.decodebytes(bytearray(b'YWJj\n')), b'abc')
eq(base64.decodebytes(memoryview(b'YWJj\n')), b'abc')
eq(base64.decodebytes(array('B', b'YWJj\n')), b'abc')
self.check_type_errors(base64.decodebytes)
def test_encode(self):
eq = self.assertEqual
from io import BytesIO, StringIO
infp = BytesIO(b'abcdefghijklmnopqrstuvwxyz'
b'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
b'0123456789!@#0^&*();:<>,. []{}')
outfp = BytesIO()
base64.encode(infp, outfp)
eq(outfp.getvalue(),
b'YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE'
b'RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0\nNT'
b'Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==\n')
# Non-binary files
self.assertRaises(TypeError, base64.encode, StringIO('abc'), BytesIO())
self.assertRaises(TypeError, base64.encode, BytesIO(b'abc'), StringIO())
self.assertRaises(TypeError, base64.encode, StringIO('abc'), StringIO())
def test_decode(self):
from io import BytesIO, StringIO
infp = BytesIO(b'd3d3LnB5dGhvbi5vcmc=')
outfp = BytesIO()
base64.decode(infp, outfp)
self.assertEqual(outfp.getvalue(), b'www.python.org')
# Non-binary files
self.assertRaises(TypeError, base64.encode, StringIO('YWJj\n'), BytesIO())
self.assertRaises(TypeError, base64.encode, BytesIO(b'YWJj\n'), StringIO())
self.assertRaises(TypeError, base64.encode, StringIO('YWJj\n'), StringIO())
class BaseXYTestCase(unittest.TestCase):
# Modern API completely ignores exported dimension and format data and
# treats any buffer as a stream of bytes
def check_encode_type_errors(self, f):
self.assertRaises(TypeError, f, "")
self.assertRaises(TypeError, f, [])
def check_decode_type_errors(self, f):
self.assertRaises(TypeError, f, [])
def check_other_types(self, f, bytes_data, expected):
eq = self.assertEqual
b = bytearray(bytes_data)
eq(f(b), expected)
# The bytearray wasn't mutated
eq(b, bytes_data)
eq(f(memoryview(bytes_data)), expected)
eq(f(array('B', bytes_data)), expected)
# XXX why is b64encode hardcoded here?
self.check_nonbyte_element_format(base64.b64encode, bytes_data)
self.check_multidimensional(base64.b64encode, bytes_data)
def check_multidimensional(self, f, data):
padding = b"\x00" if len(data) % 2 else b""
bytes_data = data + padding # Make sure cast works
shape = (len(bytes_data) // 2, 2)
multidimensional = memoryview(bytes_data).cast('B', shape)
self.assertEqual(f(multidimensional), f(bytes_data))
def check_nonbyte_element_format(self, f, data):
padding = b"\x00" * ((4 - len(data)) % 4)
bytes_data = data + padding # Make sure cast works
int_data = memoryview(bytes_data).cast('I')
self.assertEqual(f(int_data), f(bytes_data))
def test_b64encode(self):
eq = self.assertEqual
# Test default alphabet
eq(base64.b64encode(b"www.python.org"), b"d3d3LnB5dGhvbi5vcmc=")
eq(base64.b64encode(b'\x00'), b'AA==')
eq(base64.b64encode(b"a"), b"YQ==")
eq(base64.b64encode(b"ab"), b"YWI=")
eq(base64.b64encode(b"abc"), b"YWJj")
eq(base64.b64encode(b""), b"")
eq(base64.b64encode(b"abcdefghijklmnopqrstuvwxyz"
b"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
b"0123456789!@#0^&*();:<>,. []{}"),
b"YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
b"RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0NT"
b"Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==")
# Test with arbitrary alternative characters
eq(base64.b64encode(b'\xd3V\xbeo\xf7\x1d', altchars=b'*$'), b'01a*b$cd')
eq(base64.b64encode(b'\xd3V\xbeo\xf7\x1d', altchars=bytearray(b'*$')),
b'01a*b$cd')
eq(base64.b64encode(b'\xd3V\xbeo\xf7\x1d', altchars=memoryview(b'*$')),
b'01a*b$cd')
eq(base64.b64encode(b'\xd3V\xbeo\xf7\x1d', altchars=array('B', b'*$')),
b'01a*b$cd')
# Non-bytes
self.check_other_types(base64.b64encode, b'abcd', b'YWJjZA==')
self.check_encode_type_errors(base64.b64encode)
self.assertRaises(TypeError, base64.b64encode, b"", altchars="*$")
# Test standard alphabet
eq(base64.standard_b64encode(b"www.python.org"), b"d3d3LnB5dGhvbi5vcmc=")
eq(base64.standard_b64encode(b"a"), b"YQ==")
eq(base64.standard_b64encode(b"ab"), b"YWI=")
eq(base64.standard_b64encode(b"abc"), b"YWJj")
eq(base64.standard_b64encode(b""), b"")
eq(base64.standard_b64encode(b"abcdefghijklmnopqrstuvwxyz"
b"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
b"0123456789!@#0^&*();:<>,. []{}"),
b"YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
b"RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0NT"
b"Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==")
# Non-bytes
self.check_other_types(base64.standard_b64encode,
b'abcd', b'YWJjZA==')
self.check_encode_type_errors(base64.standard_b64encode)
# Test with 'URL safe' alternative characters
eq(base64.urlsafe_b64encode(b'\xd3V\xbeo\xf7\x1d'), b'01a-b_cd')
# Non-bytes
self.check_other_types(base64.urlsafe_b64encode,
b'\xd3V\xbeo\xf7\x1d', b'01a-b_cd')
self.check_encode_type_errors(base64.urlsafe_b64encode)
def test_b64decode(self):
eq = self.assertEqual
tests = {b"d3d3LnB5dGhvbi5vcmc=": b"www.python.org",
b'AA==': b'\x00',
b"YQ==": b"a",
b"YWI=": b"ab",
b"YWJj": b"abc",
b"YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
b"RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0\nNT"
b"Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==":
b"abcdefghijklmnopqrstuvwxyz"
b"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
b"0123456789!@#0^&*();:<>,. []{}",
b'': b'',
}
for data, res in tests.items():
eq(base64.b64decode(data), res)
eq(base64.b64decode(data.decode('ascii')), res)
# Non-bytes
self.check_other_types(base64.b64decode, b"YWJj", b"abc")
self.check_decode_type_errors(base64.b64decode)
# Test with arbitrary alternative characters
tests_altchars = {(b'01a*b$cd', b'*$'): b'\xd3V\xbeo\xf7\x1d',
}
for (data, altchars), res in tests_altchars.items():
data_str = data.decode('ascii')
altchars_str = altchars.decode('ascii')
eq(base64.b64decode(data, altchars=altchars), res)
eq(base64.b64decode(data_str, altchars=altchars), res)
eq(base64.b64decode(data, altchars=altchars_str), res)
eq(base64.b64decode(data_str, altchars=altchars_str), res)
# Test standard alphabet
for data, res in tests.items():
eq(base64.standard_b64decode(data), res)
eq(base64.standard_b64decode(data.decode('ascii')), res)
# Non-bytes
self.check_other_types(base64.standard_b64decode, b"YWJj", b"abc")
self.check_decode_type_errors(base64.standard_b64decode)
# Test with 'URL safe' alternative characters
tests_urlsafe = {b'01a-b_cd': b'\xd3V\xbeo\xf7\x1d',
b'': b'',
}
for data, res in tests_urlsafe.items():
eq(base64.urlsafe_b64decode(data), res)
eq(base64.urlsafe_b64decode(data.decode('ascii')), res)
# Non-bytes
self.check_other_types(base64.urlsafe_b64decode, b'01a-b_cd',
b'\xd3V\xbeo\xf7\x1d')
self.check_decode_type_errors(base64.urlsafe_b64decode)
def test_b64decode_padding_error(self):
self.assertRaises(binascii.Error, base64.b64decode, b'abc')
self.assertRaises(binascii.Error, base64.b64decode, 'abc')
def test_b64decode_invalid_chars(self):
# issue 1466065: Test some invalid characters.
tests = ((b'%3d==', b'\xdd'),
(b'$3d==', b'\xdd'),
(b'[==', b''),
(b'YW]3=', b'am'),
(b'3{d==', b'\xdd'),
(b'3d}==', b'\xdd'),
(b'@@', b''),
(b'!', b''),
(b'YWJj\nYWI=', b'abcab'))
funcs = (
base64.b64decode,
base64.standard_b64decode,
base64.urlsafe_b64decode,
)
for bstr, res in tests:
for func in funcs:
with self.subTest(bstr=bstr, func=func):
self.assertEqual(func(bstr), res)
self.assertEqual(func(bstr.decode('ascii')), res)
with self.assertRaises(binascii.Error):
base64.b64decode(bstr, validate=True)
with self.assertRaises(binascii.Error):
base64.b64decode(bstr.decode('ascii'), validate=True)
# Normal alphabet characters not discarded when alternative given
res = b'\xFB\xEF\xBE\xFF\xFF\xFF'
self.assertEqual(base64.b64decode(b'++[[//]]', b'[]'), res)
self.assertEqual(base64.urlsafe_b64decode(b'++--//__'), res)
def test_b32encode(self):
eq = self.assertEqual
eq(base64.b32encode(b''), b'')
eq(base64.b32encode(b'\x00'), b'AA======')
eq(base64.b32encode(b'a'), b'ME======')
eq(base64.b32encode(b'ab'), b'MFRA====')
eq(base64.b32encode(b'abc'), b'MFRGG===')
eq(base64.b32encode(b'abcd'), b'MFRGGZA=')
eq(base64.b32encode(b'abcde'), b'MFRGGZDF')
# Non-bytes
self.check_other_types(base64.b32encode, b'abcd', b'MFRGGZA=')
self.check_encode_type_errors(base64.b32encode)
def test_b32decode(self):
eq = self.assertEqual
tests = {b'': b'',
b'AA======': b'\x00',
b'ME======': b'a',
b'MFRA====': b'ab',
b'MFRGG===': b'abc',
b'MFRGGZA=': b'abcd',
b'MFRGGZDF': b'abcde',
}
for data, res in tests.items():
eq(base64.b32decode(data), res)
eq(base64.b32decode(data.decode('ascii')), res)
# Non-bytes
self.check_other_types(base64.b32decode, b'MFRGG===', b"abc")
self.check_decode_type_errors(base64.b32decode)
def test_b32decode_casefold(self):
eq = self.assertEqual
tests = {b'': b'',
b'ME======': b'a',
b'MFRA====': b'ab',
b'MFRGG===': b'abc',
b'MFRGGZA=': b'abcd',
b'MFRGGZDF': b'abcde',
# Lower cases
b'me======': b'a',
b'mfra====': b'ab',
b'mfrgg===': b'abc',
b'mfrggza=': b'abcd',
b'mfrggzdf': b'abcde',
}
for data, res in tests.items():
eq(base64.b32decode(data, True), res)
eq(base64.b32decode(data.decode('ascii'), True), res)
self.assertRaises(binascii.Error, base64.b32decode, b'me======')
self.assertRaises(binascii.Error, base64.b32decode, 'me======')
# Mapping zero and one
eq(base64.b32decode(b'MLO23456'), b'b\xdd\xad\xf3\xbe')
eq(base64.b32decode('MLO23456'), b'b\xdd\xad\xf3\xbe')
map_tests = {(b'M1023456', b'L'): b'b\xdd\xad\xf3\xbe',
(b'M1023456', b'I'): b'b\x1d\xad\xf3\xbe',
}
for (data, map01), res in map_tests.items():
data_str = data.decode('ascii')
map01_str = map01.decode('ascii')
eq(base64.b32decode(data, map01=map01), res)
eq(base64.b32decode(data_str, map01=map01), res)
eq(base64.b32decode(data, map01=map01_str), res)
eq(base64.b32decode(data_str, map01=map01_str), res)
self.assertRaises(binascii.Error, base64.b32decode, data)
self.assertRaises(binascii.Error, base64.b32decode, data_str)
def test_b32decode_error(self):
for data in [b'abc', b'ABCDEF==', b'==ABCDEF']:
with self.assertRaises(binascii.Error):
base64.b32decode(data)
with self.assertRaises(binascii.Error):
base64.b32decode(data.decode('ascii'))
def test_b16encode(self):
eq = self.assertEqual
eq(base64.b16encode(b'\x01\x02\xab\xcd\xef'), b'0102ABCDEF')
eq(base64.b16encode(b'\x00'), b'00')
# Non-bytes
self.check_other_types(base64.b16encode, b'\x01\x02\xab\xcd\xef',
b'0102ABCDEF')
self.check_encode_type_errors(base64.b16encode)
def test_b16decode(self):
eq = self.assertEqual
eq(base64.b16decode(b'0102ABCDEF'), b'\x01\x02\xab\xcd\xef')
eq(base64.b16decode('0102ABCDEF'), b'\x01\x02\xab\xcd\xef')
eq(base64.b16decode(b'00'), b'\x00')
eq(base64.b16decode('00'), b'\x00')
# Lower case is not allowed without a flag
self.assertRaises(binascii.Error, base64.b16decode, b'0102abcdef')
self.assertRaises(binascii.Error, base64.b16decode, '0102abcdef')
# Case fold
eq(base64.b16decode(b'0102abcdef', True), b'\x01\x02\xab\xcd\xef')
eq(base64.b16decode('0102abcdef', True), b'\x01\x02\xab\xcd\xef')
# Non-bytes
self.check_other_types(base64.b16decode, b"0102ABCDEF",
b'\x01\x02\xab\xcd\xef')
self.check_decode_type_errors(base64.b16decode)
eq(base64.b16decode(bytearray(b"0102abcdef"), True),
b'\x01\x02\xab\xcd\xef')
eq(base64.b16decode(memoryview(b"0102abcdef"), True),
b'\x01\x02\xab\xcd\xef')
eq(base64.b16decode(array('B', b"0102abcdef"), True),
b'\x01\x02\xab\xcd\xef')
# Non-alphabet characters
self.assertRaises(binascii.Error, base64.b16decode, '0102AG')
# Incorrect "padding"
self.assertRaises(binascii.Error, base64.b16decode, '010')
def test_a85encode(self):
eq = self.assertEqual
tests = {
b'': b'',
b"www.python.org": b'GB\\6`E-ZP=Df.1GEb>',
bytes(range(255)): b"""!!*-'"9eu7#RLhG$k3[W&.oNg'GVB"(`=52*$$"""
b"""(B+<_pR,UFcb-n-Vr/1iJ-0JP==1c70M3&s#]4?Ykm5X@_(6q'R884cE"""
b"""H9MJ8X:f1+h<)lt#=BSg3>[:ZC?t!MSA7]@cBPD3sCi+'.E,fo>FEMbN"""
b"""G^4U^I!pHnJ:W<)KS>/9Ll%"IN/`jYOHG]iPa.Q$R$jD4S=Q7DTV8*TU"""
b"""nsrdW2ZetXKAY/Yd(L?['d?O\\@K2_]Y2%o^qmn*`5Ta:aN;TJbg"GZd"""
b"""*^:jeCE.%f\\,!5gtgiEi8N\\UjQ5OekiqBum-X60nF?)@o_%qPq"ad`"""
b"""r;HT""",
b"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
b"0123456789!@#0^&*();:<>,. []{}":
b'@:E_WAS,RgBkhF"D/O92EH6,BF`qtRH$VbC6UX@47n?3D92&&T'
b":Jand;cHat='/U/0JP==1c70M3&r-I,;<FN.OZ`-3]oSW/g+A(H[P",
b"no padding..": b'DJpY:@:Wn_DJ(RS',
b"zero compression\0\0\0\0": b'H=_,8+Cf>,E,oN2F(oQ1z',
b"zero compression\0\0\0": b'H=_,8+Cf>,E,oN2F(oQ1!!!!',
b"Boundary:\0\0\0\0": b'6>q!aA79M(3WK-[!!',
b"Space compr: ": b';fH/TAKYK$D/aMV+<VdL',
b'\xff': b'rr',
b'\xff'*2: b's8N',
b'\xff'*3: b's8W*',
b'\xff'*4: b's8W-!',
}
for data, res in tests.items():
eq(base64.a85encode(data), res, data)
eq(base64.a85encode(data, adobe=False), res, data)
eq(base64.a85encode(data, adobe=True), b'<~' + res + b'~>', data)
self.check_other_types(base64.a85encode, b"www.python.org",
b'GB\\6`E-ZP=Df.1GEb>')
self.assertRaises(TypeError, base64.a85encode, "")
eq(base64.a85encode(b"www.python.org", wrapcol=7, adobe=False),
b'GB\\6`E-\nZP=Df.1\nGEb>')
eq(base64.a85encode(b"\0\0\0\0www.python.org", wrapcol=7, adobe=False),
b'zGB\\6`E\n-ZP=Df.\n1GEb>')
eq(base64.a85encode(b"www.python.org", wrapcol=7, adobe=True),
b'<~GB\\6`\nE-ZP=Df\n.1GEb>\n~>')
eq(base64.a85encode(b' '*8, foldspaces=True, adobe=False), b'yy')
eq(base64.a85encode(b' '*7, foldspaces=True, adobe=False), b'y+<Vd')
eq(base64.a85encode(b' '*6, foldspaces=True, adobe=False), b'y+<U')
eq(base64.a85encode(b' '*5, foldspaces=True, adobe=False), b'y+9')
def test_b85encode(self):
eq = self.assertEqual
tests = {
b'': b'',
b'www.python.org': b'cXxL#aCvlSZ*DGca%T',
bytes(range(255)): b"""009C61O)~M2nh-c3=Iws5D^j+6crX17#SKH9337X"""
b"""AR!_nBqb&%C@Cr{EG;fCFflSSG&MFiI5|2yJUu=?KtV!7L`6nNNJ&ad"""
b"""OifNtP*GA-R8>}2SXo+ITwPvYU}0ioWMyV&XlZI|Y;A6DaB*^Tbai%j"""
b"""czJqze0_d@fPsR8goTEOh>41ejE#<ukdcy;l$Dm3n3<ZJoSmMZprN9p"""
b"""q@|{(sHv)}tgWuEu(7hUw6(UkxVgH!yuH4^z`?@9#Kp$P$jQpf%+1cv"""
b"""(9zP<)YaD4*xB0K+}+;a;Njxq<mKk)=;`X~?CtLF@bU8V^!4`l`1$(#"""
b"""{Qdp""",
b"""abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"""
b"""0123456789!@#0^&*();:<>,. []{}""":
b"""VPa!sWoBn+X=-b1ZEkOHadLBXb#`}nd3r%YLqtVJM@UIZOH55pPf$@("""
b"""Q&d$}S6EqEFflSSG&MFiI5{CeBQRbjDkv#CIy^osE+AW7dwl""",
b'no padding..': b'Zf_uPVPs@!Zf7no',
b'zero compression\x00\x00\x00\x00': b'dS!BNAY*TBaB^jHb7^mG00000',
b'zero compression\x00\x00\x00': b'dS!BNAY*TBaB^jHb7^mG0000',
b"""Boundary:\x00\x00\x00\x00""": b"""LT`0$WMOi7IsgCw00""",
b'Space compr: ': b'Q*dEpWgug3ZE$irARr(h',
b'\xff': b'{{',
b'\xff'*2: b'|Nj',
b'\xff'*3: b'|Ns9',
b'\xff'*4: b'|NsC0',
}
for data, res in tests.items():
eq(base64.b85encode(data), res)
self.check_other_types(base64.b85encode, b"www.python.org",
b'cXxL#aCvlSZ*DGca%T')
def test_a85decode(self):
eq = self.assertEqual
tests = {
b'': b'',
b'GB\\6`E-ZP=Df.1GEb>': b'www.python.org',
b"""! ! * -'"\n\t\t9eu\r\n7# RL\vhG$k3[W&.oNg'GVB"(`=52*$$"""
b"""(B+<_pR,UFcb-n-Vr/1iJ-0JP==1c70M3&s#]4?Ykm5X@_(6q'R884cE"""
b"""H9MJ8X:f1+h<)lt#=BSg3>[:ZC?t!MSA7]@cBPD3sCi+'.E,fo>FEMbN"""
b"""G^4U^I!pHnJ:W<)KS>/9Ll%"IN/`jYOHG]iPa.Q$R$jD4S=Q7DTV8*TU"""
b"""nsrdW2ZetXKAY/Yd(L?['d?O\\@K2_]Y2%o^qmn*`5Ta:aN;TJbg"GZd"""
b"""*^:jeCE.%f\\,!5gtgiEi8N\\UjQ5OekiqBum-X60nF?)@o_%qPq"ad`"""
b"""r;HT""": bytes(range(255)),
b"""@:E_WAS,RgBkhF"D/O92EH6,BF`qtRH$VbC6UX@47n?3D92&&T:Jand;c"""
b"""Hat='/U/0JP==1c70M3&r-I,;<FN.OZ`-3]oSW/g+A(H[P""":
b'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234'
b'56789!@#0^&*();:<>,. []{}',
b'DJpY:@:Wn_DJ(RS': b'no padding..',
b'H=_,8+Cf>,E,oN2F(oQ1z': b'zero compression\x00\x00\x00\x00',
b'H=_,8+Cf>,E,oN2F(oQ1!!!!': b'zero compression\x00\x00\x00',
b'6>q!aA79M(3WK-[!!': b"Boundary:\x00\x00\x00\x00",
b';fH/TAKYK$D/aMV+<VdL': b'Space compr: ',
b'rr': b'\xff',
b's8N': b'\xff'*2,
b's8W*': b'\xff'*3,
b's8W-!': b'\xff'*4,
}
for data, res in tests.items():
eq(base64.a85decode(data), res, data)
eq(base64.a85decode(data, adobe=False), res, data)
eq(base64.a85decode(data.decode("ascii"), adobe=False), res, data)
eq(base64.a85decode(b'<~' + data + b'~>', adobe=True), res, data)
eq(base64.a85decode(data + b'~>', adobe=True), res, data)
eq(base64.a85decode('<~%s~>' % data.decode("ascii"), adobe=True),
res, data)
eq(base64.a85decode(b'yy', foldspaces=True, adobe=False), b' '*8)
eq(base64.a85decode(b'y+<Vd', foldspaces=True, adobe=False), b' '*7)
eq(base64.a85decode(b'y+<U', foldspaces=True, adobe=False), b' '*6)
eq(base64.a85decode(b'y+9', foldspaces=True, adobe=False), b' '*5)
self.check_other_types(base64.a85decode, b'GB\\6`E-ZP=Df.1GEb>',
b"www.python.org")
def test_b85decode(self):
eq = self.assertEqual
tests = {
b'': b'',
b'cXxL#aCvlSZ*DGca%T': b'www.python.org',
b"""009C61O)~M2nh-c3=Iws5D^j+6crX17#SKH9337X"""
b"""AR!_nBqb&%C@Cr{EG;fCFflSSG&MFiI5|2yJUu=?KtV!7L`6nNNJ&ad"""
b"""OifNtP*GA-R8>}2SXo+ITwPvYU}0ioWMyV&XlZI|Y;A6DaB*^Tbai%j"""
b"""czJqze0_d@fPsR8goTEOh>41ejE#<ukdcy;l$Dm3n3<ZJoSmMZprN9p"""
b"""q@|{(sHv)}tgWuEu(7hUw6(UkxVgH!yuH4^z`?@9#Kp$P$jQpf%+1cv"""
b"""(9zP<)YaD4*xB0K+}+;a;Njxq<mKk)=;`X~?CtLF@bU8V^!4`l`1$(#"""
b"""{Qdp""": bytes(range(255)),
b"""VPa!sWoBn+X=-b1ZEkOHadLBXb#`}nd3r%YLqtVJM@UIZOH55pPf$@("""
b"""Q&d$}S6EqEFflSSG&MFiI5{CeBQRbjDkv#CIy^osE+AW7dwl""":
b"""abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"""
b"""0123456789!@#0^&*();:<>,. []{}""",
b'Zf_uPVPs@!Zf7no': b'no padding..',
b'dS!BNAY*TBaB^jHb7^mG00000': b'zero compression\x00\x00\x00\x00',
b'dS!BNAY*TBaB^jHb7^mG0000': b'zero compression\x00\x00\x00',
b"""LT`0$WMOi7IsgCw00""": b"""Boundary:\x00\x00\x00\x00""",
b'Q*dEpWgug3ZE$irARr(h': b'Space compr: ',
b'{{': b'\xff',
b'|Nj': b'\xff'*2,
b'|Ns9': b'\xff'*3,
b'|NsC0': b'\xff'*4,
}
for data, res in tests.items():
eq(base64.b85decode(data), res)
eq(base64.b85decode(data.decode("ascii")), res)
self.check_other_types(base64.b85decode, b'cXxL#aCvlSZ*DGca%T',
b"www.python.org")
def test_a85_padding(self):
eq = self.assertEqual
eq(base64.a85encode(b"x", pad=True), b'GQ7^D')
eq(base64.a85encode(b"xx", pad=True), b"G^'2g")
eq(base64.a85encode(b"xxx", pad=True), b'G^+H5')
eq(base64.a85encode(b"xxxx", pad=True), b'G^+IX')
eq(base64.a85encode(b"xxxxx", pad=True), b'G^+IXGQ7^D')
eq(base64.a85decode(b'GQ7^D'), b"x\x00\x00\x00")
eq(base64.a85decode(b"G^'2g"), b"xx\x00\x00")
eq(base64.a85decode(b'G^+H5'), b"xxx\x00")
eq(base64.a85decode(b'G^+IX'), b"xxxx")
eq(base64.a85decode(b'G^+IXGQ7^D'), b"xxxxx\x00\x00\x00")
def test_b85_padding(self):
eq = self.assertEqual
eq(base64.b85encode(b"x", pad=True), b'cmMzZ')
eq(base64.b85encode(b"xx", pad=True), b'cz6H+')
eq(base64.b85encode(b"xxx", pad=True), b'czAdK')
eq(base64.b85encode(b"xxxx", pad=True), b'czAet')
eq(base64.b85encode(b"xxxxx", pad=True), b'czAetcmMzZ')
eq(base64.b85decode(b'cmMzZ'), b"x\x00\x00\x00")
eq(base64.b85decode(b'cz6H+'), b"xx\x00\x00")
eq(base64.b85decode(b'czAdK'), b"xxx\x00")
eq(base64.b85decode(b'czAet'), b"xxxx")
eq(base64.b85decode(b'czAetcmMzZ'), b"xxxxx\x00\x00\x00")
def test_a85decode_errors(self):
illegal = (set(range(32)) | set(range(118, 256))) - set(b' \t\n\r\v')
for c in illegal:
with self.assertRaises(ValueError, msg=bytes([c])):
base64.a85decode(b'!!!!' + bytes([c]))
with self.assertRaises(ValueError, msg=bytes([c])):
base64.a85decode(b'!!!!' + bytes([c]), adobe=False)
with self.assertRaises(ValueError, msg=bytes([c])):
base64.a85decode(b'<~!!!!' + bytes([c]) + b'~>', adobe=True)
self.assertRaises(ValueError, base64.a85decode,
b"malformed", adobe=True)
self.assertRaises(ValueError, base64.a85decode,
b"<~still malformed", adobe=True)
# With adobe=False (the default), Adobe framing markers are disallowed
self.assertRaises(ValueError, base64.a85decode,
b"<~~>")
self.assertRaises(ValueError, base64.a85decode,
b"<~~>", adobe=False)
base64.a85decode(b"<~~>", adobe=True) # sanity check
self.assertRaises(ValueError, base64.a85decode,
b"abcx", adobe=False)
self.assertRaises(ValueError, base64.a85decode,
b"abcdey", adobe=False)
self.assertRaises(ValueError, base64.a85decode,
b"a b\nc", adobe=False, ignorechars=b"")
self.assertRaises(ValueError, base64.a85decode, b's', adobe=False)
self.assertRaises(ValueError, base64.a85decode, b's8', adobe=False)
self.assertRaises(ValueError, base64.a85decode, b's8W', adobe=False)
self.assertRaises(ValueError, base64.a85decode, b's8W-', adobe=False)
self.assertRaises(ValueError, base64.a85decode, b's8W-"', adobe=False)
def test_b85decode_errors(self):
illegal = list(range(33)) + \
list(b'"\',./:[\\]') + \
list(range(128, 256))
for c in illegal:
with self.assertRaises(ValueError, msg=bytes([c])):
base64.b85decode(b'0000' + bytes([c]))
self.assertRaises(ValueError, base64.b85decode, b'|')
self.assertRaises(ValueError, base64.b85decode, b'|N')
self.assertRaises(ValueError, base64.b85decode, b'|Ns')
self.assertRaises(ValueError, base64.b85decode, b'|NsC')
self.assertRaises(ValueError, base64.b85decode, b'|NsC1')
def test_decode_nonascii_str(self):
decode_funcs = (base64.b64decode,
base64.standard_b64decode,
base64.urlsafe_b64decode,
base64.b32decode,
base64.b16decode,
base64.b85decode,
base64.a85decode)
for f in decode_funcs:
self.assertRaises(ValueError, f, 'with non-ascii \xcb')
def test_ErrorHeritage(self):
self.assertTrue(issubclass(binascii.Error, ValueError))
class TestMain(unittest.TestCase):
def tearDown(self):
if os.path.exists(support.TESTFN):
os.unlink(support.TESTFN)
def get_output(self, *args):
return script_helper.assert_python_ok('-m', 'base64', *args).out
def test_encode_decode(self):
output = self.get_output('-t')
self.assertSequenceEqual(output.splitlines(), (
b"b'Aladdin:open sesame'",
br"b'QWxhZGRpbjpvcGVuIHNlc2FtZQ==\n'",
b"b'Aladdin:open sesame'",
))
def test_encode_file(self):
with open(support.TESTFN, 'wb') as fp:
fp.write(b'a\xffb\n')
output = self.get_output('-e', support.TESTFN)
self.assertEqual(output.rstrip(), b'Yf9iCg==')
def test_encode_from_stdin(self):
with script_helper.spawn_python('-m', 'base64', '-e') as proc:
out, err = proc.communicate(b'a\xffb\n')
self.assertEqual(out.rstrip(), b'Yf9iCg==')
self.assertIsNone(err)
def test_decode(self):
with open(support.TESTFN, 'wb') as fp:
fp.write(b'Yf9iCg==')
output = self.get_output('-d', support.TESTFN)
self.assertEqual(output.rstrip(), b'a\xffb')
if __name__ == '__main__':
unittest.main()
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