text: import unittest
  import base64
  import binascii
  import os
  from array import array
  from test.support import os_helper
  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_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\n", b"abc"),
                   (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):
          tests = [b'abc', b'ABCDEF==', b'==ABCDEF']
          prefixes = [b'M', b'ME', b'MFRA', b'MFRGG', b'MFRGGZA', b'MFRGGZDF']
          for i in range(0, 17):
              if i:
                  tests.append(b'='*i)
              for prefix in prefixes:
                  if len(prefix) + i != 8:
                      tests.append(prefix + b'='*i)
          for data in tests:
              with self.subTest(data=data):
                  with self.assertRaises(binascii.Error):
                      base64.b32decode(data)
                  with self.assertRaises(binascii.Error):
                      base64.b32decode(data.decode('ascii'))
  
      def test_b32hexencode(self):
          test_cases = [
              # to_encode, expected
              (b'',      b''),
              (b'\x00',  b'00======'),
              (b'a',     b'C4======'),
              (b'ab',    b'C5H0===='),
              (b'abc',   b'C5H66==='),
              (b'abcd',  b'C5H66P0='),
              (b'abcde', b'C5H66P35'),
          ]
          for to_encode, expected in test_cases:
              with self.subTest(to_decode=to_encode):
                  self.assertEqual(base64.b32hexencode(to_encode), expected)
  
      def test_b32hexencode_other_types(self):
          self.check_other_types(base64.b32hexencode, b'abcd', b'C5H66P0=')
          self.check_encode_type_errors(base64.b32hexencode)
  
      def test_b32hexdecode(self):
          test_cases = [
              # to_decode, expected, casefold
              (b'',         b'',      False),
              (b'00======', b'\x00',  False),
              (b'C4======', b'a',     False),
              (b'C5H0====', b'ab',    False),
              (b'C5H66===', b'abc',   False),
              (b'C5H66P0=', b'abcd',  False),
              (b'C5H66P35', b'abcde', False),
              (b'',         b'',      True),
              (b'00======', b'\x00',  True),
              (b'C4======', b'a',     True),
              (b'C5H0====', b'ab',    True),
              (b'C5H66===', b'abc',   True),
              (b'C5H66P0=', b'abcd',  True),
              (b'C5H66P35', b'abcde', True),
              (b'c4======', b'a',     True),
              (b'c5h0====', b'ab',    True),
              (b'c5h66===', b'abc',   True),
              (b'c5h66p0=', b'abcd',  True),
              (b'c5h66p35', b'abcde', True),
          ]
          for to_decode, expected, casefold in test_cases:
              with self.subTest(to_decode=to_decode, casefold=casefold):
                  self.assertEqual(base64.b32hexdecode(to_decode, casefold),
                                   expected)
                  self.assertEqual(base64.b32hexdecode(to_decode.decode('ascii'),
                                   casefold), expected)
  
      def test_b32hexdecode_other_types(self):
          self.check_other_types(base64.b32hexdecode, b'C5H66===', b'abc')
          self.check_decode_type_errors(base64.b32hexdecode)
  
      def test_b32hexdecode_error(self):
          tests = [b'abc', b'ABCDEF==', b'==ABCDEF', b'c4======']
          prefixes = [b'M', b'ME', b'MFRA', b'MFRGG', b'MFRGGZA', b'MFRGGZDF']
          for i in range(0, 17):
              if i:
                  tests.append(b'='*i)
              for prefix in prefixes:
                  if len(prefix) + i != 8:
                      tests.append(prefix + b'='*i)
          for data in tests:
              with self.subTest(to_decode=data):
                  with self.assertRaises(binascii.Error):
                      base64.b32hexdecode(data)
                  with self.assertRaises(binascii.Error):
                      base64.b32hexdecode(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(os_helper.TESTFN):
              os.unlink(os_helper.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(os_helper.TESTFN, 'wb') as fp:
              fp.write(b'a\xffb\n')
          output = self.get_output('-e', os_helper.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(os_helper.TESTFN, 'wb') as fp:
              fp.write(b'Yf9iCg==')
          output = self.get_output('-d', os_helper.TESTFN)
          self.assertEqual(output.rstrip(), b'a\xffb')
  
  if __name__ == '__main__':
      unittest.main()
  