1 #!/usr/bin/env python

     2 #

     3 # test_multibytecodec.py

     4 #   Unit test for multibytecodec itself

     5 #

     6 

     7 from test import test_support

     8 from test import test_multibytecodec_support

     9 from test.test_support import TESTFN

    10 import unittest, StringIO, codecs, sys, os

    11 

    12 ALL_CJKENCODINGS = [

    13 # _codecs_cn

    14     'gb2312', 'gbk', 'gb18030', 'hz',

    15 # _codecs_hk

    16     'big5hkscs',

    17 # _codecs_jp

    18     'cp932', 'shift_jis', 'euc_jp', 'euc_jisx0213', 'shift_jisx0213',

    19     'euc_jis_2004', 'shift_jis_2004',

    20 # _codecs_kr

    21     'cp949', 'euc_kr', 'johab',

    22 # _codecs_tw

    23     'big5', 'cp950',

    24 # _codecs_iso2022

    25     'iso2022_jp', 'iso2022_jp_1', 'iso2022_jp_2', 'iso2022_jp_2004',

    26     'iso2022_jp_3', 'iso2022_jp_ext', 'iso2022_kr',

    27 ]

    28 

    29 class Test_MultibyteCodec(unittest.TestCase):

    30 

    31     def test_nullcoding(self):

    32         for enc in ALL_CJKENCODINGS:

    33             self.assertEqual(''.decode(enc), u'')

    34             self.assertEqual(unicode('', enc), u'')

    35             self.assertEqual(u''.encode(enc), '')

    36 

    37     def test_str_decode(self):

    38         for enc in ALL_CJKENCODINGS:

    39             self.assertEqual('abcd'.encode(enc), 'abcd')

    40 

    41     def test_errorcallback_longindex(self):

    42         dec = codecs.getdecoder('euc-kr')

    43         myreplace  = lambda exc: (u'', sys.maxint+1)

    44         codecs.register_error('test.cjktest', myreplace)

    45         self.assertRaises(IndexError, dec,

    46                           'apple\x92ham\x93spam', 'test.cjktest')

    47 

    48     def test_codingspec(self):

    49         try:

    50             for enc in ALL_CJKENCODINGS:

    51                 print >> open(TESTFN, 'w'), '# coding:', enc

    52                 exec open(TESTFN)

    53         finally:

    54             os.unlink(TESTFN)

    55 

    56 class Test_IncrementalEncoder(unittest.TestCase):

    57 

    58     def test_stateless(self):

    59         # cp949 encoder isn't stateful at all.

    60         encoder = codecs.getincrementalencoder('cp949')()

    61         self.assertEqual(encoder.encode(u'\ud30c\uc774\uc36c \ub9c8\uc744'),

    62                          '\xc6\xc4\xc0\xcc\xbd\xe3 \xb8\xb6\xc0\xbb')

    63         self.assertEqual(encoder.reset(), None)

    64         self.assertEqual(encoder.encode(u'\u2606\u223c\u2606', True),

    65                          '\xa1\xd9\xa1\xad\xa1\xd9')

    66         self.assertEqual(encoder.reset(), None)

    67         self.assertEqual(encoder.encode(u'', True), '')

    68         self.assertEqual(encoder.encode(u'', False), '')

    69         self.assertEqual(encoder.reset(), None)

    70 

    71     def test_stateful(self):

    72         # jisx0213 encoder is stateful for a few codepoints. eg)

    73         #   U+00E6 => A9DC

    74         #   U+00E6 U+0300 => ABC4

    75         #   U+0300 => ABDC

    76 

    77         encoder = codecs.getincrementalencoder('jisx0213')()

    78         self.assertEqual(encoder.encode(u'\u00e6\u0300'), '\xab\xc4')

    79         self.assertEqual(encoder.encode(u'\u00e6'), '')

    80         self.assertEqual(encoder.encode(u'\u0300'), '\xab\xc4')

    81         self.assertEqual(encoder.encode(u'\u00e6', True), '\xa9\xdc')

    82 

    83         self.assertEqual(encoder.reset(), None)

    84         self.assertEqual(encoder.encode(u'\u0300'), '\xab\xdc')

    85 

    86         self.assertEqual(encoder.encode(u'\u00e6'), '')

    87         self.assertEqual(encoder.encode('', True), '\xa9\xdc')

    88         self.assertEqual(encoder.encode('', True), '')

    89 

    90     def test_stateful_keep_buffer(self):

    91         encoder = codecs.getincrementalencoder('jisx0213')()

    92         self.assertEqual(encoder.encode(u'\u00e6'), '')

    93         self.assertRaises(UnicodeEncodeError, encoder.encode, u'\u0123')

    94         self.assertEqual(encoder.encode(u'\u0300\u00e6'), '\xab\xc4')

    95         self.assertRaises(UnicodeEncodeError, encoder.encode, u'\u0123')

    96         self.assertEqual(encoder.reset(), None)

    97         self.assertEqual(encoder.encode(u'\u0300'), '\xab\xdc')

    98         self.assertEqual(encoder.encode(u'\u00e6'), '')

    99         self.assertRaises(UnicodeEncodeError, encoder.encode, u'\u0123')

   100         self.assertEqual(encoder.encode(u'', True), '\xa9\xdc')

   101 

   102 

   103 class Test_IncrementalDecoder(unittest.TestCase):

   104 

   105     def test_dbcs(self):

   106         # cp949 decoder is simple with only 1 or 2 bytes sequences.

   107         decoder = codecs.getincrementaldecoder('cp949')()

   108         self.assertEqual(decoder.decode('\xc6\xc4\xc0\xcc\xbd'),

   109                          u'\ud30c\uc774')

   110         self.assertEqual(decoder.decode('\xe3 \xb8\xb6\xc0\xbb'),

   111                          u'\uc36c \ub9c8\uc744')

   112         self.assertEqual(decoder.decode(''), u'')

   113 

   114     def test_dbcs_keep_buffer(self):

   115         decoder = codecs.getincrementaldecoder('cp949')()

   116         self.assertEqual(decoder.decode('\xc6\xc4\xc0'), u'\ud30c')

   117         self.assertRaises(UnicodeDecodeError, decoder.decode, '', True)

   118         self.assertEqual(decoder.decode('\xcc'), u'\uc774')

   119 

   120         self.assertEqual(decoder.decode('\xc6\xc4\xc0'), u'\ud30c')

   121         self.assertRaises(UnicodeDecodeError, decoder.decode, '\xcc\xbd', True)

   122         self.assertEqual(decoder.decode('\xcc'), u'\uc774')

   123 

   124     def test_iso2022(self):

   125         decoder = codecs.getincrementaldecoder('iso2022-jp')()

   126         ESC = '\x1b'

   127         self.assertEqual(decoder.decode(ESC + '('), u'')

   128         self.assertEqual(decoder.decode('B', True), u'')

   129         self.assertEqual(decoder.decode(ESC + '$'), u'')

   130         self.assertEqual(decoder.decode('B@$'), u'\u4e16')

   131         self.assertEqual(decoder.decode('@$@'), u'\u4e16')

   132         self.assertEqual(decoder.decode('$', True), u'\u4e16')

   133         self.assertEqual(decoder.reset(), None)

   134         self.assertEqual(decoder.decode('@$'), u'@$')

   135         self.assertEqual(decoder.decode(ESC + '$'), u'')

   136         self.assertRaises(UnicodeDecodeError, decoder.decode, '', True)

   137         self.assertEqual(decoder.decode('B@$'), u'\u4e16')

   138 

   139 class Test_StreamReader(unittest.TestCase):

   140     def test_bug1728403(self):

   141         try:

   142             open(TESTFN, 'w').write('\xa1')

   143             f = codecs.open(TESTFN, encoding='cp949')

   144             self.assertRaises(UnicodeDecodeError, f.read, 2)

   145         finally:

   146             try: f.close()

   147             except: pass

   148             os.unlink(TESTFN)

   149 

   150 class Test_StreamWriter(unittest.TestCase):

   151     if len(u'\U00012345') == 2: # UCS2

   152         def test_gb18030(self):

   153             s= StringIO.StringIO()

   154             c = codecs.getwriter('gb18030')(s)

   155             c.write(u'123')

   156             self.assertEqual(s.getvalue(), '123')

   157             c.write(u'\U00012345')

   158             self.assertEqual(s.getvalue(), '123\x907\x959')

   159             c.write(u'\U00012345'[0])

   160             self.assertEqual(s.getvalue(), '123\x907\x959')

   161             c.write(u'\U00012345'[1] + u'\U00012345' + u'\uac00\u00ac')

   162             self.assertEqual(s.getvalue(),

   163                     '123\x907\x959\x907\x959\x907\x959\x827\xcf5\x810\x851')

   164             c.write(u'\U00012345'[0])

   165             self.assertEqual(s.getvalue(),

   166                     '123\x907\x959\x907\x959\x907\x959\x827\xcf5\x810\x851')

   167             self.assertRaises(UnicodeError, c.reset)

   168             self.assertEqual(s.getvalue(),

   169                     '123\x907\x959\x907\x959\x907\x959\x827\xcf5\x810\x851')

   170 

   171         def test_utf_8(self):

   172             s= StringIO.StringIO()

   173             c = codecs.getwriter('utf-8')(s)

   174             c.write(u'123')

   175             self.assertEqual(s.getvalue(), '123')

   176             c.write(u'\U00012345')

   177             self.assertEqual(s.getvalue(), '123\xf0\x92\x8d\x85')

   178 

   179             # Python utf-8 codec can't buffer surrogate pairs yet.

   180             if 0:

   181                 c.write(u'\U00012345'[0])

   182                 self.assertEqual(s.getvalue(), '123\xf0\x92\x8d\x85')

   183                 c.write(u'\U00012345'[1] + u'\U00012345' + u'\uac00\u00ac')

   184                 self.assertEqual(s.getvalue(),

   185                     '123\xf0\x92\x8d\x85\xf0\x92\x8d\x85\xf0\x92\x8d\x85'

   186                     '\xea\xb0\x80\xc2\xac')

   187                 c.write(u'\U00012345'[0])

   188                 self.assertEqual(s.getvalue(),

   189                     '123\xf0\x92\x8d\x85\xf0\x92\x8d\x85\xf0\x92\x8d\x85'

   190                     '\xea\xb0\x80\xc2\xac')

   191                 c.reset()

   192                 self.assertEqual(s.getvalue(),

   193                     '123\xf0\x92\x8d\x85\xf0\x92\x8d\x85\xf0\x92\x8d\x85'

   194                     '\xea\xb0\x80\xc2\xac\xed\xa0\x88')

   195                 c.write(u'\U00012345'[1])

   196                 self.assertEqual(s.getvalue(),

   197                     '123\xf0\x92\x8d\x85\xf0\x92\x8d\x85\xf0\x92\x8d\x85'

   198                     '\xea\xb0\x80\xc2\xac\xed\xa0\x88\xed\xbd\x85')

   199 

   200     else: # UCS4

   201         pass

   202 

   203     def test_streamwriter_strwrite(self):

   204         s = StringIO.StringIO()

   205         wr = codecs.getwriter('gb18030')(s)

   206         wr.write('abcd')

   207         self.assertEqual(s.getvalue(), 'abcd')

   208 

   209 class Test_ISO2022(unittest.TestCase):

   210     def test_g2(self):

   211         iso2022jp2 = '\x1b(B:hu4:unit\x1b.A\x1bNi de famille'

   212         uni = u':hu4:unit\xe9 de famille'

   213         self.assertEqual(iso2022jp2.decode('iso2022-jp-2'), uni)

   214 

   215     def test_iso2022_jp_g0(self):

   216         self.failIf('\x0e' in u'\N{SOFT HYPHEN}'.encode('iso-2022-jp-2'))

   217         for encoding in ('iso-2022-jp-2004', 'iso-2022-jp-3'):

   218             e = u'\u3406'.encode(encoding)

   219             self.failIf(filter(lambda x: x >= '\x80', e))

   220 

   221     def test_bug1572832(self):

   222         if sys.maxunicode >= 0x10000:

   223             myunichr = unichr

   224         else:

   225             myunichr = lambda x: unichr(0xD7C0+(x>>10)) + unichr(0xDC00+(x&0x3FF))

   226 

   227         for x in xrange(0x10000, 0x110000):

   228             # Any ISO 2022 codec will cause the segfault

   229             myunichr(x).encode('iso_2022_jp', 'ignore')

   230 

   231 def test_main():

   232     suite = unittest.TestSuite()

   233     suite.addTest(unittest.makeSuite(Test_MultibyteCodec))

   234     suite.addTest(unittest.makeSuite(Test_IncrementalEncoder))

   235     suite.addTest(unittest.makeSuite(Test_IncrementalDecoder))

   236     suite.addTest(unittest.makeSuite(Test_StreamReader))

   237     suite.addTest(unittest.makeSuite(Test_StreamWriter))

   238     suite.addTest(unittest.makeSuite(Test_ISO2022))

   239     test_support.run_suite(suite)

   240 

   241 if __name__ == "__main__":

   242     test_main()