mirror of
https://github.com/python/cpython.git
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317 lines
13 KiB
Python
317 lines
13 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 os
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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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tests = {b"d3d3LnB5dGhvbi5vcmc=": b"www.python.org",
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b'AA==': b'\x00',
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b"YQ==": b"a",
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b"YWI=": b"ab",
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b"YWJj": b"abc",
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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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b'': b'',
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}
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for data, res in tests.items():
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eq(base64.b64decode(data), res)
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eq(base64.b64decode(data.decode('ascii')), res)
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# Test with arbitrary alternative characters
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tests_altchars = {(b'01a*b$cd', b'*$'): b'\xd3V\xbeo\xf7\x1d',
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}
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for (data, altchars), res in tests_altchars.items():
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data_str = data.decode('ascii')
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altchars_str = altchars.decode('ascii')
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eq(base64.b64decode(data, altchars=altchars), res)
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eq(base64.b64decode(data_str, altchars=altchars), res)
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eq(base64.b64decode(data, altchars=altchars_str), res)
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eq(base64.b64decode(data_str, altchars=altchars_str), res)
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# Test standard alphabet
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for data, res in tests.items():
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eq(base64.standard_b64decode(data), res)
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eq(base64.standard_b64decode(data.decode('ascii')), res)
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# Test with 'URL safe' alternative characters
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tests_urlsafe = {b'01a-b_cd': b'\xd3V\xbeo\xf7\x1d',
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b'': b'',
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}
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for data, res in tests_urlsafe.items():
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eq(base64.urlsafe_b64decode(data), res)
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eq(base64.urlsafe_b64decode(data.decode('ascii')), res)
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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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self.assertRaises(binascii.Error, base64.b64decode, '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.assertEqual(base64.b64decode(bstr), res)
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self.assertEqual(base64.b64decode(bstr.decode('ascii')), res)
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with self.assertRaises(binascii.Error):
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base64.b64decode(bstr, validate=True)
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with self.assertRaises(binascii.Error):
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base64.b64decode(bstr.decode('ascii'), 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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tests = {b'': b'',
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b'AA======': b'\x00',
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b'ME======': b'a',
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b'MFRA====': b'ab',
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b'MFRGG===': b'abc',
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b'MFRGGZA=': b'abcd',
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b'MFRGGZDF': b'abcde',
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}
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for data, res in tests.items():
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eq(base64.b32decode(data), res)
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eq(base64.b32decode(data.decode('ascii')), res)
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def test_b32decode_casefold(self):
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eq = self.assertEqual
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tests = {b'': b'',
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b'ME======': b'a',
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b'MFRA====': b'ab',
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b'MFRGG===': b'abc',
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b'MFRGGZA=': b'abcd',
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b'MFRGGZDF': b'abcde',
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# Lower cases
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b'me======': b'a',
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b'mfra====': b'ab',
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b'mfrgg===': b'abc',
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b'mfrggza=': b'abcd',
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b'mfrggzdf': b'abcde',
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}
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for data, res in tests.items():
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eq(base64.b32decode(data, True), res)
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eq(base64.b32decode(data.decode('ascii'), True), res)
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self.assertRaises(TypeError, base64.b32decode, b'me======')
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self.assertRaises(TypeError, base64.b32decode, '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('MLO23456'), b'b\xdd\xad\xf3\xbe')
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map_tests = {(b'M1023456', b'L'): b'b\xdd\xad\xf3\xbe',
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(b'M1023456', b'I'): b'b\x1d\xad\xf3\xbe',
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}
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for (data, map01), res in map_tests.items():
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data_str = data.decode('ascii')
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map01_str = map01.decode('ascii')
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eq(base64.b32decode(data, map01=map01), res)
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eq(base64.b32decode(data_str, map01=map01), res)
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eq(base64.b32decode(data, map01=map01_str), res)
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eq(base64.b32decode(data_str, map01=map01_str), res)
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def test_b32decode_error(self):
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for data in [b'abc', b'ABCDEF==']:
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with self.assertRaises(binascii.Error):
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base64.b32decode(data)
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with self.assertRaises(binascii.Error):
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base64.b32decode(data.decode('ascii'))
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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('0102ABCDEF'), b'\x01\x02\xab\xcd\xef')
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eq(base64.b16decode(b'00'), b'\x00')
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eq(base64.b16decode('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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self.assertRaises(binascii.Error, base64.b16decode, '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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eq(base64.b16decode('0102abcdef', True), b'\x01\x02\xab\xcd\xef')
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def test_decode_nonascii_str(self):
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decode_funcs = (base64.b64decode,
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base64.standard_b64decode,
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base64.urlsafe_b64decode,
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base64.b32decode,
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base64.b16decode)
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for f in decode_funcs:
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self.assertRaises(ValueError, f, 'with non-ascii \xcb')
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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 tearDown(self):
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if os.path.exists(support.TESTFN):
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os.unlink(support.TESTFN)
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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.assertEqual(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.assertEqual(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.assertEqual(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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