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6495136e40
Patch by Neil Tallim. This provides a mechanism for module users to achieve RFC 3548 compliance in the cases where ignoring non-base64-alphabet input characters is *not* mandated by the RFC that references RFC 3548.
265 lines
11 KiB
Python
265 lines
11 KiB
Python
import unittest
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from test import support
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import base64
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import binascii
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import sys
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import subprocess
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class LegacyBase64TestCase(unittest.TestCase):
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def test_encodebytes(self):
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eq = self.assertEqual
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eq(base64.encodebytes(b"www.python.org"), b"d3d3LnB5dGhvbi5vcmc=\n")
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eq(base64.encodebytes(b"a"), b"YQ==\n")
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eq(base64.encodebytes(b"ab"), b"YWI=\n")
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eq(base64.encodebytes(b"abc"), b"YWJj\n")
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eq(base64.encodebytes(b""), b"")
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eq(base64.encodebytes(b"abcdefghijklmnopqrstuvwxyz"
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b"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
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b"0123456789!@#0^&*();:<>,. []{}"),
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b"YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
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b"RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0\nNT"
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b"Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==\n")
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self.assertRaises(TypeError, base64.encodebytes, "")
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def test_decodebytes(self):
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eq = self.assertEqual
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eq(base64.decodebytes(b"d3d3LnB5dGhvbi5vcmc=\n"), b"www.python.org")
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eq(base64.decodebytes(b"YQ==\n"), b"a")
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eq(base64.decodebytes(b"YWI=\n"), b"ab")
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eq(base64.decodebytes(b"YWJj\n"), b"abc")
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eq(base64.decodebytes(b"YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
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b"RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0\nNT"
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b"Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==\n"),
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b"abcdefghijklmnopqrstuvwxyz"
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b"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
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b"0123456789!@#0^&*();:<>,. []{}")
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eq(base64.decodebytes(b''), b'')
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self.assertRaises(TypeError, base64.decodebytes, "")
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def test_encode(self):
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eq = self.assertEqual
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from io import BytesIO
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infp = BytesIO(b'abcdefghijklmnopqrstuvwxyz'
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b'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
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b'0123456789!@#0^&*();:<>,. []{}')
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outfp = BytesIO()
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base64.encode(infp, outfp)
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eq(outfp.getvalue(),
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b'YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE'
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b'RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0\nNT'
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b'Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==\n')
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def test_decode(self):
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from io import BytesIO
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infp = BytesIO(b'd3d3LnB5dGhvbi5vcmc=')
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outfp = BytesIO()
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base64.decode(infp, outfp)
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self.assertEqual(outfp.getvalue(), b'www.python.org')
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class BaseXYTestCase(unittest.TestCase):
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def test_b64encode(self):
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eq = self.assertEqual
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# Test default alphabet
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eq(base64.b64encode(b"www.python.org"), b"d3d3LnB5dGhvbi5vcmc=")
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eq(base64.b64encode(b'\x00'), b'AA==')
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eq(base64.b64encode(b"a"), b"YQ==")
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eq(base64.b64encode(b"ab"), b"YWI=")
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eq(base64.b64encode(b"abc"), b"YWJj")
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eq(base64.b64encode(b""), b"")
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eq(base64.b64encode(b"abcdefghijklmnopqrstuvwxyz"
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b"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
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b"0123456789!@#0^&*();:<>,. []{}"),
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b"YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
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b"RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0NT"
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b"Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==")
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# Test with arbitrary alternative characters
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eq(base64.b64encode(b'\xd3V\xbeo\xf7\x1d', altchars=b'*$'), b'01a*b$cd')
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# Check if passing a str object raises an error
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self.assertRaises(TypeError, base64.b64encode, "")
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self.assertRaises(TypeError, base64.b64encode, b"", altchars="")
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# Test standard alphabet
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eq(base64.standard_b64encode(b"www.python.org"), b"d3d3LnB5dGhvbi5vcmc=")
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eq(base64.standard_b64encode(b"a"), b"YQ==")
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eq(base64.standard_b64encode(b"ab"), b"YWI=")
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eq(base64.standard_b64encode(b"abc"), b"YWJj")
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eq(base64.standard_b64encode(b""), b"")
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eq(base64.standard_b64encode(b"abcdefghijklmnopqrstuvwxyz"
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b"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
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b"0123456789!@#0^&*();:<>,. []{}"),
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b"YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
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b"RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0NT"
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b"Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==")
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# Check if passing a str object raises an error
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self.assertRaises(TypeError, base64.standard_b64encode, "")
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self.assertRaises(TypeError, base64.standard_b64encode, b"", altchars="")
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# Test with 'URL safe' alternative characters
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eq(base64.urlsafe_b64encode(b'\xd3V\xbeo\xf7\x1d'), b'01a-b_cd')
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# Check if passing a str object raises an error
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self.assertRaises(TypeError, base64.urlsafe_b64encode, "")
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def test_b64decode(self):
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eq = self.assertEqual
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eq(base64.b64decode(b"d3d3LnB5dGhvbi5vcmc="), b"www.python.org")
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eq(base64.b64decode(b'AA=='), b'\x00')
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eq(base64.b64decode(b"YQ=="), b"a")
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eq(base64.b64decode(b"YWI="), b"ab")
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eq(base64.b64decode(b"YWJj"), b"abc")
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eq(base64.b64decode(b"YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
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b"RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0\nNT"
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b"Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ=="),
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b"abcdefghijklmnopqrstuvwxyz"
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b"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
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b"0123456789!@#0^&*();:<>,. []{}")
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eq(base64.b64decode(b''), b'')
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# Test with arbitrary alternative characters
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eq(base64.b64decode(b'01a*b$cd', altchars=b'*$'), b'\xd3V\xbeo\xf7\x1d')
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# Check if passing a str object raises an error
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self.assertRaises(TypeError, base64.b64decode, "")
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self.assertRaises(TypeError, base64.b64decode, b"", altchars="")
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# Test standard alphabet
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eq(base64.standard_b64decode(b"d3d3LnB5dGhvbi5vcmc="), b"www.python.org")
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eq(base64.standard_b64decode(b"YQ=="), b"a")
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eq(base64.standard_b64decode(b"YWI="), b"ab")
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eq(base64.standard_b64decode(b"YWJj"), b"abc")
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eq(base64.standard_b64decode(b""), b"")
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eq(base64.standard_b64decode(b"YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
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b"RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0NT"
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b"Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ=="),
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b"abcdefghijklmnopqrstuvwxyz"
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b"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
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b"0123456789!@#0^&*();:<>,. []{}")
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# Check if passing a str object raises an error
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self.assertRaises(TypeError, base64.standard_b64decode, "")
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self.assertRaises(TypeError, base64.standard_b64decode, b"", altchars="")
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# Test with 'URL safe' alternative characters
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eq(base64.urlsafe_b64decode(b'01a-b_cd'), b'\xd3V\xbeo\xf7\x1d')
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self.assertRaises(TypeError, base64.urlsafe_b64decode, "")
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def test_b64decode_padding_error(self):
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self.assertRaises(binascii.Error, base64.b64decode, b'abc')
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def test_b64decode_invalid_chars(self):
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# issue 1466065: Test some invalid characters.
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tests = ((b'%3d==', b'\xdd'),
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(b'$3d==', b'\xdd'),
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(b'[==', b''),
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(b'YW]3=', b'am'),
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(b'3{d==', b'\xdd'),
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(b'3d}==', b'\xdd'),
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(b'@@', b''),
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(b'!', b''),
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(b'YWJj\nYWI=', b'abcab'))
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for bstr, res in tests:
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self.assertEquals(base64.b64decode(bstr), res)
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with self.assertRaises(binascii.Error):
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base64.b64decode(bstr, validate=True)
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def test_b32encode(self):
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eq = self.assertEqual
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eq(base64.b32encode(b''), b'')
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eq(base64.b32encode(b'\x00'), b'AA======')
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eq(base64.b32encode(b'a'), b'ME======')
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eq(base64.b32encode(b'ab'), b'MFRA====')
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eq(base64.b32encode(b'abc'), b'MFRGG===')
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eq(base64.b32encode(b'abcd'), b'MFRGGZA=')
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eq(base64.b32encode(b'abcde'), b'MFRGGZDF')
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self.assertRaises(TypeError, base64.b32encode, "")
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def test_b32decode(self):
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eq = self.assertEqual
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eq(base64.b32decode(b''), b'')
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eq(base64.b32decode(b'AA======'), b'\x00')
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eq(base64.b32decode(b'ME======'), b'a')
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eq(base64.b32decode(b'MFRA===='), b'ab')
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eq(base64.b32decode(b'MFRGG==='), b'abc')
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eq(base64.b32decode(b'MFRGGZA='), b'abcd')
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eq(base64.b32decode(b'MFRGGZDF'), b'abcde')
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self.assertRaises(TypeError, base64.b32decode, "")
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def test_b32decode_casefold(self):
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eq = self.assertEqual
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eq(base64.b32decode(b'', True), b'')
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eq(base64.b32decode(b'ME======', True), b'a')
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eq(base64.b32decode(b'MFRA====', True), b'ab')
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eq(base64.b32decode(b'MFRGG===', True), b'abc')
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eq(base64.b32decode(b'MFRGGZA=', True), b'abcd')
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eq(base64.b32decode(b'MFRGGZDF', True), b'abcde')
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# Lower cases
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eq(base64.b32decode(b'me======', True), b'a')
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eq(base64.b32decode(b'mfra====', True), b'ab')
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eq(base64.b32decode(b'mfrgg===', True), b'abc')
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eq(base64.b32decode(b'mfrggza=', True), b'abcd')
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eq(base64.b32decode(b'mfrggzdf', True), b'abcde')
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# Expected exceptions
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self.assertRaises(TypeError, base64.b32decode, b'me======')
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# Mapping zero and one
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eq(base64.b32decode(b'MLO23456'), b'b\xdd\xad\xf3\xbe')
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eq(base64.b32decode(b'M1023456', map01=b'L'), b'b\xdd\xad\xf3\xbe')
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eq(base64.b32decode(b'M1023456', map01=b'I'), b'b\x1d\xad\xf3\xbe')
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self.assertRaises(TypeError, base64.b32decode, b"", map01="")
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def test_b32decode_error(self):
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self.assertRaises(binascii.Error, base64.b32decode, b'abc')
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self.assertRaises(binascii.Error, base64.b32decode, b'ABCDEF==')
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def test_b16encode(self):
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eq = self.assertEqual
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eq(base64.b16encode(b'\x01\x02\xab\xcd\xef'), b'0102ABCDEF')
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eq(base64.b16encode(b'\x00'), b'00')
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self.assertRaises(TypeError, base64.b16encode, "")
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def test_b16decode(self):
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eq = self.assertEqual
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eq(base64.b16decode(b'0102ABCDEF'), b'\x01\x02\xab\xcd\xef')
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eq(base64.b16decode(b'00'), b'\x00')
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# Lower case is not allowed without a flag
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self.assertRaises(binascii.Error, base64.b16decode, b'0102abcdef')
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# Case fold
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eq(base64.b16decode(b'0102abcdef', True), b'\x01\x02\xab\xcd\xef')
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self.assertRaises(TypeError, base64.b16decode, "")
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def test_ErrorHeritage(self):
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self.assertTrue(issubclass(binascii.Error, ValueError))
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class TestMain(unittest.TestCase):
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def get_output(self, *args, **options):
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args = (sys.executable, '-m', 'base64') + args
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return subprocess.check_output(args, **options)
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def test_encode_decode(self):
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output = self.get_output('-t')
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self.assertSequenceEqual(output.splitlines(), (
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b"b'Aladdin:open sesame'",
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br"b'QWxhZGRpbjpvcGVuIHNlc2FtZQ==\n'",
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b"b'Aladdin:open sesame'",
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))
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def test_encode_file(self):
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with open(support.TESTFN, 'wb') as fp:
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fp.write(b'a\xffb\n')
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output = self.get_output('-e', support.TESTFN)
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self.assertEquals(output.rstrip(), b'Yf9iCg==')
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with open(support.TESTFN, 'rb') as fp:
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output = self.get_output('-e', stdin=fp)
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self.assertEquals(output.rstrip(), b'Yf9iCg==')
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def test_decode(self):
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with open(support.TESTFN, 'wb') as fp:
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fp.write(b'Yf9iCg==')
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output = self.get_output('-d', support.TESTFN)
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self.assertEquals(output.rstrip(), b'a\xffb')
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def test_main():
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support.run_unittest(__name__)
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if __name__ == '__main__':
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test_main()
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