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test_base64.py
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import unittest
from test import test_support
import base64
class LegacyBase64TestCase(unittest.TestCase):
def test_encodestring(self):
eq = self.assertEqual
eq(base64.encodestring("www.python.org"), "d3d3LnB5dGhvbi5vcmc=\n")
eq(base64.encodestring("a"), "YQ==\n")
eq(base64.encodestring("ab"), "YWI=\n")
eq(base64.encodestring("abc"), "YWJj\n")
eq(base64.encodestring(""), "")
eq(base64.encodestring("abcdefghijklmnopqrstuvwxyz"
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
"0123456789!@#0^&*();:<>,. []{}"),
"YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
"RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0\nNT"
"Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==\n")
def test_decodestring(self):
eq = self.assertEqual
eq(base64.decodestring("d3d3LnB5dGhvbi5vcmc=\n"), "www.python.org")
eq(base64.decodestring("YQ==\n"), "a")
eq(base64.decodestring("YWI=\n"), "ab")
eq(base64.decodestring("YWJj\n"), "abc")
eq(base64.decodestring("YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
"RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0\nNT"
"Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==\n"),
"abcdefghijklmnopqrstuvwxyz"
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
"0123456789!@#0^&*();:<>,. []{}")
eq(base64.decodestring(''), '')
def test_encode(self):
eq = self.assertEqual
from cStringIO import StringIO
infp = StringIO('abcdefghijklmnopqrstuvwxyz'
'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
'0123456789!@#0^&*();:<>,. []{}')
outfp = StringIO()
base64.encode(infp, outfp)
eq(outfp.getvalue(),
'YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE'
'RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0\nNT'
'Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==\n')
def test_decode(self):
from cStringIO import StringIO
infp = StringIO('d3d3LnB5dGhvbi5vcmc=')
outfp = StringIO()
base64.decode(infp, outfp)
self.assertEqual(outfp.getvalue(), 'www.python.org')
class BaseXYTestCase(unittest.TestCase):
def test_b64encode(self):
eq = self.assertEqual
# Test default alphabet
eq(base64.b64encode("www.python.org"), "d3d3LnB5dGhvbi5vcmc=")
eq(base64.b64encode('\x00'), 'AA==')
eq(base64.b64encode("a"), "YQ==")
eq(base64.b64encode("ab"), "YWI=")
eq(base64.b64encode("abc"), "YWJj")
eq(base64.b64encode(""), "")
eq(base64.b64encode("abcdefghijklmnopqrstuvwxyz"
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
"0123456789!@#0^&*();:<>,. []{}"),
"YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
"RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0NT"
"Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==")
# Test with arbitrary alternative characters
eq(base64.b64encode('\xd3V\xbeo\xf7\x1d', altchars='*$'), '01a*b$cd')
# Test standard alphabet
eq(base64.standard_b64encode("www.python.org"), "d3d3LnB5dGhvbi5vcmc=")
eq(base64.standard_b64encode("a"), "YQ==")
eq(base64.standard_b64encode("ab"), "YWI=")
eq(base64.standard_b64encode("abc"), "YWJj")
eq(base64.standard_b64encode(""), "")
eq(base64.standard_b64encode("abcdefghijklmnopqrstuvwxyz"
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
"0123456789!@#0^&*();:<>,. []{}"),
"YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
"RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0NT"
"Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==")
# Test with 'URL safe' alternative characters
eq(base64.urlsafe_b64encode('\xd3V\xbeo\xf7\x1d'), '01a-b_cd')
def test_b64decode(self):
eq = self.assertEqual
eq(base64.b64decode("d3d3LnB5dGhvbi5vcmc="), "www.python.org")
eq(base64.b64decode('AA=='), '\x00')
eq(base64.b64decode("YQ=="), "a")
eq(base64.b64decode("YWI="), "ab")
eq(base64.b64decode("YWJj"), "abc")
eq(base64.b64decode("YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
"RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0\nNT"
"Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ=="),
"abcdefghijklmnopqrstuvwxyz"
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
"0123456789!@#0^&*();:<>,. []{}")
eq(base64.b64decode(''), '')
# Test with arbitrary alternative characters
eq(base64.b64decode('01a*b$cd', altchars='*$'), '\xd3V\xbeo\xf7\x1d')
# Test standard alphabet
eq(base64.standard_b64decode("d3d3LnB5dGhvbi5vcmc="), "www.python.org")
eq(base64.standard_b64decode("YQ=="), "a")
eq(base64.standard_b64decode("YWI="), "ab")
eq(base64.standard_b64decode("YWJj"), "abc")
eq(base64.standard_b64decode(""), "")
eq(base64.standard_b64decode("YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
"RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0NT"
"Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ=="),
"abcdefghijklmnopqrstuvwxyz"
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
"0123456789!@#0^&*();:<>,. []{}")
# Test with 'URL safe' alternative characters
eq(base64.urlsafe_b64decode('01a-b_cd'), '\xd3V\xbeo\xf7\x1d')
def test_b64decode_error(self):
self.assertRaises(TypeError, base64.b64decode, 'abc')
def test_b32encode(self):
eq = self.assertEqual
eq(base64.b32encode(''), '')
eq(base64.b32encode('\x00'), 'AA======')
eq(base64.b32encode('a'), 'ME======')
eq(base64.b32encode('ab'), 'MFRA====')
eq(base64.b32encode('abc'), 'MFRGG===')
eq(base64.b32encode('abcd'), 'MFRGGZA=')
eq(base64.b32encode('abcde'), 'MFRGGZDF')
def test_b32decode(self):
eq = self.assertEqual
eq(base64.b32decode(''), '')
eq(base64.b32decode('AA======'), '\x00')
eq(base64.b32decode('ME======'), 'a')
eq(base64.b32decode('MFRA===='), 'ab')
eq(base64.b32decode('MFRGG==='), 'abc')
eq(base64.b32decode('MFRGGZA='), 'abcd')
eq(base64.b32decode('MFRGGZDF'), 'abcde')
def test_b32decode_casefold(self):
eq = self.assertEqual
eq(base64.b32decode('', True), '')
eq(base64.b32decode('ME======', True), 'a')
eq(base64.b32decode('MFRA====', True), 'ab')
eq(base64.b32decode('MFRGG===', True), 'abc')
eq(base64.b32decode('MFRGGZA=', True), 'abcd')
eq(base64.b32decode('MFRGGZDF', True), 'abcde')
# Lower cases
eq(base64.b32decode('me======', True), 'a')
eq(base64.b32decode('mfra====', True), 'ab')
eq(base64.b32decode('mfrgg===', True), 'abc')
eq(base64.b32decode('mfrggza=', True), 'abcd')
eq(base64.b32decode('mfrggzdf', True), 'abcde')
# Expected exceptions
self.assertRaises(TypeError, base64.b32decode, 'me======')
# Mapping zero and one
eq(base64.b32decode('MLO23456'), 'b\xdd\xad\xf3\xbe')
eq(base64.b32decode('M1023456', map01='L'), 'b\xdd\xad\xf3\xbe')
eq(base64.b32decode('M1023456', map01='I'), 'b\x1d\xad\xf3\xbe')
def test_b32decode_error(self):
self.assertRaises(TypeError, base64.b32decode, 'abc')
self.assertRaises(TypeError, base64.b32decode, 'ABCDEF==')
def test_b16encode(self):
eq = self.assertEqual
eq(base64.b16encode('\x01\x02\xab\xcd\xef'), '0102ABCDEF')
eq(base64.b16encode('\x00'), '00')
def test_b16decode(self):
eq = self.assertEqual
eq(base64.b16decode('0102ABCDEF'), '\x01\x02\xab\xcd\xef')
eq(base64.b16decode('00'), '\x00')
# Lower case is not allowed without a flag
self.assertRaises(TypeError, base64.b16decode, '0102abcdef')
# Case fold
eq(base64.b16decode('0102abcdef', True), '\x01\x02\xab\xcd\xef')
def test_main():
test_support.run_unittest(__name__)
if __name__ == '__main__':
test_main()