Add CJK codecs support as discussed on python-dev. (SF #873597)
Several style fixes are suggested by Martin v. Loewis and
Marc-Andre Lemburg. Thanks!
diff --git a/Lib/test/test_multibytecodec_support.py b/Lib/test/test_multibytecodec_support.py
new file mode 100644
index 0000000..6185243
--- /dev/null
+++ b/Lib/test/test_multibytecodec_support.py
@@ -0,0 +1,233 @@
+#!/usr/bin/env python
+#
+# test_multibytecodec_support.py
+# Common Unittest Routines for CJK codecs
+#
+# $CJKCodecs: test_multibytecodec_support.py,v 1.5 2004/01/17 12:47:19 perky Exp $
+
+import sys, codecs, os.path
+import unittest
+from test import test_support
+from StringIO import StringIO
+
+__cjkcodecs__ = 0 # define this as 0 for python
+
+class TestBase:
+ encoding = '' # codec name
+ codec = None # codec tuple (with 4 elements)
+ tstring = '' # string to test StreamReader
+
+ codectests = None # must set. codec test tuple
+ roundtriptest = 1 # set if roundtrip is possible with unicode
+ has_iso10646 = 0 # set if this encoding contains whole iso10646 map
+ xmlcharnametest = None # string to test xmlcharrefreplace
+
+ def setUp(self):
+ if self.codec is None:
+ self.codec = codecs.lookup(self.encoding)
+ self.encode, self.decode, self.reader, self.writer = self.codec
+
+ def test_chunkcoding(self):
+ for native, utf8 in zip(*[StringIO(f).readlines()
+ for f in self.tstring]):
+ u = self.decode(native)[0]
+ self.assertEqual(u, utf8.decode('utf-8'))
+ if self.roundtriptest:
+ self.assertEqual(native, self.encode(u)[0])
+
+ def test_errorhandle(self):
+ for source, scheme, expected in self.codectests:
+ if type(source) == type(''):
+ func = self.decode
+ else:
+ func = self.encode
+ if expected:
+ result = func(source, scheme)[0]
+ self.assertEqual(result, expected)
+ else:
+ self.assertRaises(UnicodeError, func, source, scheme)
+
+ if sys.hexversion >= 0x02030000:
+ def test_xmlcharrefreplace(self):
+ if self.has_iso10646:
+ return
+
+ s = u"\u0b13\u0b23\u0b60 nd eggs"
+ self.assertEqual(
+ self.encode(s, "xmlcharrefreplace")[0],
+ "ଓଣୠ nd eggs"
+ )
+
+ def test_customreplace(self):
+ if self.has_iso10646:
+ return
+
+ import htmlentitydefs
+
+ names = {}
+ for (key, value) in htmlentitydefs.entitydefs.items():
+ if len(value)==1:
+ names[value.decode('latin-1')] = self.decode(key)[0]
+ else:
+ names[unichr(int(value[2:-1]))] = self.decode(key)[0]
+
+ def xmlcharnamereplace(exc):
+ if not isinstance(exc, UnicodeEncodeError):
+ raise TypeError("don't know how to handle %r" % exc)
+ l = []
+ for c in exc.object[exc.start:exc.end]:
+ try:
+ l.append(u"&%s;" % names[c])
+ except KeyError:
+ l.append(u"&#%d;" % ord(c))
+ return (u"".join(l), exc.end)
+
+ codecs.register_error(
+ "test.xmlcharnamereplace", xmlcharnamereplace)
+
+ if self.xmlcharnametest:
+ sin, sout = self.xmlcharnametest
+ else:
+ sin = u"\xab\u211c\xbb = \u2329\u1234\u232a"
+ sout = "«ℜ» = ⟨ሴ⟩"
+ self.assertEqual(self.encode(sin,
+ "test.xmlcharnamereplace")[0], sout)
+
+ def test_streamreader(self):
+ UTF8Writer = codecs.getwriter('utf-8')
+ for name in ["read", "readline", "readlines"]:
+ for sizehint in [None, -1] + range(1, 33) + \
+ [64, 128, 256, 512, 1024]:
+ istream = self.reader(StringIO(self.tstring[0]))
+ ostream = UTF8Writer(StringIO())
+ func = getattr(istream, name)
+ while 1:
+ data = func(sizehint)
+ if not data:
+ break
+ if name == "readlines":
+ ostream.writelines(data)
+ else:
+ ostream.write(data)
+
+ self.assertEqual(ostream.getvalue(), self.tstring[1])
+
+ def test_streamwriter(self):
+ if __cjkcodecs__:
+ readfuncs = ('read', 'readline', 'readlines')
+ else:
+ # standard utf8 codec has broken readline and readlines.
+ readfuncs = ('read',)
+ UTF8Reader = codecs.getreader('utf-8')
+ for name in readfuncs:
+ for sizehint in [None] + range(1, 33) + \
+ [64, 128, 256, 512, 1024]:
+ istream = UTF8Reader(StringIO(self.tstring[1]))
+ ostream = self.writer(StringIO())
+ func = getattr(istream, name)
+ while 1:
+ if sizehint is not None:
+ data = func(sizehint)
+ else:
+ data = func()
+
+ if not data:
+ break
+ if name == "readlines":
+ ostream.writelines(data)
+ else:
+ ostream.write(data)
+
+ self.assertEqual(ostream.getvalue(), self.tstring[0])
+
+if len(u'\U00012345') == 2: # ucs2 build
+ _unichr = unichr
+ def unichr(v):
+ if v >= 0x10000:
+ return _unichr(0xd800 + ((v - 0x10000) >> 10)) + \
+ _unichr(0xdc00 + ((v - 0x10000) & 0x3ff))
+ else:
+ return _unichr(v)
+ _ord = ord
+ def ord(c):
+ if len(c) == 2:
+ return 0x10000 + ((_ord(c[0]) - 0xd800) << 10) + \
+ (ord(c[1]) - 0xdc00)
+ else:
+ return _ord(c)
+
+class TestBase_Mapping(unittest.TestCase):
+ pass_enctest = []
+ pass_dectest = []
+ supmaps = []
+
+ def __init__(self, *args, **kw):
+ unittest.TestCase.__init__(self, *args, **kw)
+ if not os.path.exists(self.mapfilename):
+ raise test_support.TestSkipped('%s not found, download from %s' %
+ (self.mapfilename, self.mapfileurl))
+
+ def test_mapping_file(self):
+ unichrs = lambda s: u''.join(map(unichr, map(eval, s.split('+'))))
+ urt_wa = {}
+
+ for line in open(self.mapfilename):
+ if not line:
+ break
+ data = line.split('#')[0].strip().split()
+ if len(data) != 2:
+ continue
+
+ csetval = eval(data[0])
+ if csetval <= 0x7F:
+ csetch = chr(csetval & 0xff)
+ elif csetval >= 0x1000000:
+ csetch = chr(csetval >> 24) + chr((csetval >> 16) & 0xff) + \
+ chr((csetval >> 8) & 0xff) + chr(csetval & 0xff)
+ elif csetval >= 0x10000:
+ csetch = chr(csetval >> 16) + \
+ chr((csetval >> 8) & 0xff) + chr(csetval & 0xff)
+ elif csetval >= 0x100:
+ csetch = chr(csetval >> 8) + chr(csetval & 0xff)
+ else:
+ continue
+
+ unich = unichrs(data[1])
+ if ord(unich) == 0xfffd or urt_wa.has_key(unich):
+ continue
+ urt_wa[unich] = csetch
+
+ self._testpoint(csetch, unich)
+
+ def test_mapping_supplemental(self):
+ for mapping in self.supmaps:
+ self._testpoint(*mapping)
+
+ def _testpoint(self, csetch, unich):
+ if (csetch, unich) not in self.pass_enctest:
+ self.assertEqual(unich.encode(self.encoding), csetch)
+ if (csetch, unich) not in self.pass_dectest:
+ self.assertEqual(unicode(csetch, self.encoding), unich)
+
+def load_teststring(encoding):
+ if __cjkcodecs__:
+ etxt = open(os.path.join('sampletexts', encoding) + '.txt').read()
+ utxt = open(os.path.join('sampletexts', encoding) + '.utf8').read()
+ return (etxt, utxt)
+ else:
+ from test import cjkencodings_test
+ return cjkencodings_test.teststring[encoding]
+
+def register_skip_expected(*cases):
+ for case in cases: # len(cases) must be 1 at least.
+ for path in [os.path.curdir, os.path.pardir]:
+ fn = os.path.join(path, case.mapfilename)
+ if os.path.exists(fn):
+ case.mapfilename = fn
+ break
+ else:
+ sys.modules[case.__module__].skip_expected = True
+ break
+ else:
+ sys.modules[case.__module__].skip_expected = False
+