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      1 import unittest
      2 from test import test_support
      3 import base64
      4 
      5 
      6 
      8 class LegacyBase64TestCase(unittest.TestCase):
      9     def test_encodestring(self):
     10         eq = self.assertEqual
     11         eq(base64.encodestring("www.python.org"), "d3d3LnB5dGhvbi5vcmc=\n")
     12         eq(base64.encodestring("a"), "YQ==\n")
     13         eq(base64.encodestring("ab"), "YWI=\n")
     14         eq(base64.encodestring("abc"), "YWJj\n")
     15         eq(base64.encodestring(""), "")
     16         eq(base64.encodestring("abcdefghijklmnopqrstuvwxyz"
     17                                "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
     18                                "0123456789!@#0^&*();:<>,. []{}"),
     19            "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
     20            "RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0\nNT"
     21            "Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==\n")
     22 
     23     def test_decodestring(self):
     24         eq = self.assertEqual
     25         eq(base64.decodestring("d3d3LnB5dGhvbi5vcmc=\n"), "www.python.org")
     26         eq(base64.decodestring("YQ==\n"), "a")
     27         eq(base64.decodestring("YWI=\n"), "ab")
     28         eq(base64.decodestring("YWJj\n"), "abc")
     29         eq(base64.decodestring("YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
     30                                "RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0\nNT"
     31                                "Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==\n"),
     32            "abcdefghijklmnopqrstuvwxyz"
     33            "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
     34            "0123456789!@#0^&*();:<>,. []{}")
     35         eq(base64.decodestring(''), '')
     36 
     37     def test_encode(self):
     38         eq = self.assertEqual
     39         from cStringIO import StringIO
     40         infp = StringIO('abcdefghijklmnopqrstuvwxyz'
     41                         'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
     42                         '0123456789!@#0^&*();:<>,. []{}')
     43         outfp = StringIO()
     44         base64.encode(infp, outfp)
     45         eq(outfp.getvalue(),
     46            'YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE'
     47            'RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0\nNT'
     48            'Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==\n')
     49 
     50     def test_decode(self):
     51         from cStringIO import StringIO
     52         infp = StringIO('d3d3LnB5dGhvbi5vcmc=')
     53         outfp = StringIO()
     54         base64.decode(infp, outfp)
     55         self.assertEqual(outfp.getvalue(), 'www.python.org')
     56 
     57 
     58 
     60 class BaseXYTestCase(unittest.TestCase):
     61     def test_b64encode(self):
     62         eq = self.assertEqual
     63         # Test default alphabet

     64         eq(base64.b64encode("www.python.org"), "d3d3LnB5dGhvbi5vcmc=")
     65         eq(base64.b64encode('\x00'), 'AA==')
     66         eq(base64.b64encode("a"), "YQ==")
     67         eq(base64.b64encode("ab"), "YWI=")
     68         eq(base64.b64encode("abc"), "YWJj")
     69         eq(base64.b64encode(""), "")
     70         eq(base64.b64encode("abcdefghijklmnopqrstuvwxyz"
     71                             "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
     72                             "0123456789!@#0^&*();:<>,. []{}"),
     73            "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
     74            "RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0NT"
     75            "Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==")
     76         # Test with arbitrary alternative characters

     77         eq(base64.b64encode('\xd3V\xbeo\xf7\x1d', altchars='*$'), '01a*b$cd')
     78         # Test standard alphabet

     79         eq(base64.standard_b64encode("www.python.org"), "d3d3LnB5dGhvbi5vcmc=")
     80         eq(base64.standard_b64encode("a"), "YQ==")
     81         eq(base64.standard_b64encode("ab"), "YWI=")
     82         eq(base64.standard_b64encode("abc"), "YWJj")
     83         eq(base64.standard_b64encode(""), "")
     84         eq(base64.standard_b64encode("abcdefghijklmnopqrstuvwxyz"
     85                                      "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
     86                                      "0123456789!@#0^&*();:<>,. []{}"),
     87            "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
     88            "RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0NT"
     89            "Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ==")
     90         # Test with 'URL safe' alternative characters

     91         eq(base64.urlsafe_b64encode('\xd3V\xbeo\xf7\x1d'), '01a-b_cd')
     92 
     93     def test_b64decode(self):
     94         eq = self.assertEqual
     95         eq(base64.b64decode("d3d3LnB5dGhvbi5vcmc="), "www.python.org")
     96         eq(base64.b64decode('AA=='), '\x00')
     97         eq(base64.b64decode("YQ=="), "a")
     98         eq(base64.b64decode("YWI="), "ab")
     99         eq(base64.b64decode("YWJj"), "abc")
    100         eq(base64.b64decode("YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
    101                             "RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0\nNT"
    102                             "Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ=="),
    103            "abcdefghijklmnopqrstuvwxyz"
    104            "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
    105            "0123456789!@#0^&*();:<>,. []{}")
    106         eq(base64.b64decode(''), '')
    107         # Test with arbitrary alternative characters

    108         eq(base64.b64decode('01a*b$cd', altchars='*$'), '\xd3V\xbeo\xf7\x1d')
    109         # Test standard alphabet

    110         eq(base64.standard_b64decode("d3d3LnB5dGhvbi5vcmc="), "www.python.org")
    111         eq(base64.standard_b64decode("YQ=="), "a")
    112         eq(base64.standard_b64decode("YWI="), "ab")
    113         eq(base64.standard_b64decode("YWJj"), "abc")
    114         eq(base64.standard_b64decode(""), "")
    115         eq(base64.standard_b64decode("YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXpBQkNE"
    116                                      "RUZHSElKS0xNTk9QUVJTVFVWV1hZWjAxMjM0NT"
    117                                      "Y3ODkhQCMwXiYqKCk7Ojw+LC4gW117fQ=="),
    118            "abcdefghijklmnopqrstuvwxyz"
    119            "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
    120            "0123456789!@#0^&*();:<>,. []{}")
    121         # Test with 'URL safe' alternative characters

    122         eq(base64.urlsafe_b64decode('01a-b_cd'), '\xd3V\xbeo\xf7\x1d')
    123 
    124     def test_b64decode_error(self):
    125         self.assertRaises(TypeError, base64.b64decode, 'abc')
    126 
    127     def test_b32encode(self):
    128         eq = self.assertEqual
    129         eq(base64.b32encode(''), '')
    130         eq(base64.b32encode('\x00'), 'AA======')
    131         eq(base64.b32encode('a'), 'ME======')
    132         eq(base64.b32encode('ab'), 'MFRA====')
    133         eq(base64.b32encode('abc'), 'MFRGG===')
    134         eq(base64.b32encode('abcd'), 'MFRGGZA=')
    135         eq(base64.b32encode('abcde'), 'MFRGGZDF')
    136 
    137     def test_b32decode(self):
    138         eq = self.assertEqual
    139         eq(base64.b32decode(''), '')
    140         eq(base64.b32decode('AA======'), '\x00')
    141         eq(base64.b32decode('ME======'), 'a')
    142         eq(base64.b32decode('MFRA===='), 'ab')
    143         eq(base64.b32decode('MFRGG==='), 'abc')
    144         eq(base64.b32decode('MFRGGZA='), 'abcd')
    145         eq(base64.b32decode('MFRGGZDF'), 'abcde')
    146 
    147     def test_b32decode_casefold(self):
    148         eq = self.assertEqual
    149         eq(base64.b32decode('', True), '')
    150         eq(base64.b32decode('ME======', True), 'a')
    151         eq(base64.b32decode('MFRA====', True), 'ab')
    152         eq(base64.b32decode('MFRGG===', True), 'abc')
    153         eq(base64.b32decode('MFRGGZA=', True), 'abcd')
    154         eq(base64.b32decode('MFRGGZDF', True), 'abcde')
    155         # Lower cases

    156         eq(base64.b32decode('me======', True), 'a')
    157         eq(base64.b32decode('mfra====', True), 'ab')
    158         eq(base64.b32decode('mfrgg===', True), 'abc')
    159         eq(base64.b32decode('mfrggza=', True), 'abcd')
    160         eq(base64.b32decode('mfrggzdf', True), 'abcde')
    161         # Expected exceptions

    162         self.assertRaises(TypeError, base64.b32decode, 'me======')
    163         # Mapping zero and one

    164         eq(base64.b32decode('MLO23456'), 'b\xdd\xad\xf3\xbe')
    165         eq(base64.b32decode('M1023456', map01='L'), 'b\xdd\xad\xf3\xbe')
    166         eq(base64.b32decode('M1023456', map01='I'), 'b\x1d\xad\xf3\xbe')
    167 
    168     def test_b32decode_error(self):
    169         self.assertRaises(TypeError, base64.b32decode, 'abc')
    170         self.assertRaises(TypeError, base64.b32decode, 'ABCDEF==')
    171 
    172     def test_b16encode(self):
    173         eq = self.assertEqual
    174         eq(base64.b16encode('\x01\x02\xab\xcd\xef'), '0102ABCDEF')
    175         eq(base64.b16encode('\x00'), '00')
    176 
    177     def test_b16decode(self):
    178         eq = self.assertEqual
    179         eq(base64.b16decode('0102ABCDEF'), '\x01\x02\xab\xcd\xef')
    180         eq(base64.b16decode('00'), '\x00')
    181         # Lower case is not allowed without a flag

    182         self.assertRaises(TypeError, base64.b16decode, '0102abcdef')
    183         # Case fold

    184         eq(base64.b16decode('0102abcdef', True), '\x01\x02\xab\xcd\xef')
    185 
    186 
    187 
    189 def test_main():
    190     test_support.run_unittest(__name__)
    191 
    192 if __name__ == '__main__':
    193     test_main()
    194