# Copyright (C) 2002-2006 Python Software Foundation

# Contact: email-sig@python.org

# email package unit tests for (optional) Asian codecs

import unittest

from test.test_support import TestSkipped, run_unittest

from email.test.test_email import TestEmailBase

from email.Charset import Charset

from email.Header import Header, decode_header

from email.Message import Message

# We're compatible with Python 2.3, but it doesn't have the built-in Asian

# codecs, so we have to skip all these tests.

try:

    unicode('foo', 'euc-jp')

except LookupError:

    raise TestSkipped

class TestEmailAsianCodecs(TestEmailBase):

    def test_japanese_codecs(self):

        eq = self.ndiffAssertEqual

        j = Charset("euc-jp")

        g = Charset("iso-8859-1")

        h = Header("Hello World!")

        jhello = '\xa5\xcf\xa5\xed\xa1\xbc\xa5\xef\xa1\xbc\xa5\xeb\xa5\xc9\xa1\xaa'

        ghello = 'Gr\xfc\xdf Gott!'

        h.append(jhello, j)

        h.append(ghello, g)

        # BAW: This used to -- and maybe should -- fold the two iso-8859-1

        # chunks into a single encoded word.  However it doesn't violate the

        # standard to have them as two encoded chunks and maybe it's

        # reasonable <wink> for each .append() call to result in a separate

        # encoded word.

        eq(h.encode(), """\

Hello World! =?iso-2022-jp?b?GyRCJU8lbSE8JW8hPCVrJUkhKhsoQg==?=

 =?iso-8859-1?q?Gr=FC=DF?= =?iso-8859-1?q?_Gott!?=""")

        eq(decode_header(h.encode()),

           [('Hello World!', None),

            ('\x1b$B%O%m!<%o!<%k%I!*\x1b(B', 'iso-2022-jp'),

            ('Gr\xfc\xdf Gott!', 'iso-8859-1')])

        long = 'test-ja \xa4\xd8\xc5\xea\xb9\xc6\xa4\xb5\xa4\xec\xa4\xbf\xa5\xe1\xa1\xbc\xa5\xeb\xa4\xcf\xbb\xca\xb2\xf1\xbc\xd4\xa4\xce\xbe\xb5\xc7\xa7\xa4\xf2\xc2\xd4\xa4\xc3\xa4\xc6\xa4\xa4\xa4\xde\xa4\xb9'

        h = Header(long, j, header_name="Subject")

        # test a very long header

        enc = h.encode()

        # TK: splitting point may differ by codec design and/or Header encoding

        eq(enc , """\

=?iso-2022-jp?b?dGVzdC1qYSAbJEIkWEVqOUYkNSRsJD8lYSE8JWskTztKGyhC?=

 =?iso-2022-jp?b?GyRCMnE8VCROPjVHJyRyQlQkQyRGJCQkXiQ5GyhC?=""")

        # TK: full decode comparison

        eq(h.__unicode__().encode('euc-jp'), long)

    def test_payload_encoding(self):

        jhello = '\xa5\xcf\xa5\xed\xa1\xbc\xa5\xef\xa1\xbc\xa5\xeb\xa5\xc9\xa1\xaa'

        jcode  = 'euc-jp'

        msg = Message()

        msg.set_payload(jhello, jcode)

        ustr = unicode(msg.get_payload(), msg.get_content_charset())

        self.assertEqual(jhello, ustr.encode(jcode))

def suite():

    suite = unittest.TestSuite()

    suite.addTest(unittest.makeSuite(TestEmailAsianCodecs))

    return suite

def test_main():

    run_unittest(TestEmailAsianCodecs)

if __name__ == '__main__':

    unittest.main(defaultTest='suite')