text: #!/usr/bin/env python
  #
  # test_codecencodings_cn.py
  #   Codec encoding tests for PRC encodings.
  #
  
  from test import support
  from test import test_multibytecodec_support
  import unittest
  
  class Test_GB2312(test_multibytecodec_support.TestBase, unittest.TestCase):
      encoding = 'gb2312'
      tstring = test_multibytecodec_support.load_teststring('gb2312')
      codectests = (
          # invalid bytes
          (b"abc\x81\x81\xc1\xc4", "strict",  None),
          (b"abc\xc8", "strict",  None),
          (b"abc\x81\x81\xc1\xc4", "replace", "abc\ufffd\u804a"),
          (b"abc\x81\x81\xc1\xc4\xc8", "replace", "abc\ufffd\u804a\ufffd"),
          (b"abc\x81\x81\xc1\xc4", "ignore",  "abc\u804a"),
          (b"\xc1\x64", "strict", None),
      )
  
  class Test_GBK(test_multibytecodec_support.TestBase, unittest.TestCase):
      encoding = 'gbk'
      tstring = test_multibytecodec_support.load_teststring('gbk')
      codectests = (
          # invalid bytes
          (b"abc\x80\x80\xc1\xc4", "strict",  None),
          (b"abc\xc8", "strict",  None),
          (b"abc\x80\x80\xc1\xc4", "replace", "abc\ufffd\u804a"),
          (b"abc\x80\x80\xc1\xc4\xc8", "replace", "abc\ufffd\u804a\ufffd"),
          (b"abc\x80\x80\xc1\xc4", "ignore",  "abc\u804a"),
          (b"\x83\x34\x83\x31", "strict", None),
          ("\u30fb", "strict", None),
      )
  
  class Test_GB18030(test_multibytecodec_support.TestBase, unittest.TestCase):
      encoding = 'gb18030'
      tstring = test_multibytecodec_support.load_teststring('gb18030')
      codectests = (
          # invalid bytes
          (b"abc\x80\x80\xc1\xc4", "strict",  None),
          (b"abc\xc8", "strict",  None),
          (b"abc\x80\x80\xc1\xc4", "replace", "abc\ufffd\u804a"),
          (b"abc\x80\x80\xc1\xc4\xc8", "replace", "abc\ufffd\u804a\ufffd"),
          (b"abc\x80\x80\xc1\xc4", "ignore",  "abc\u804a"),
          (b"abc\x84\x39\x84\x39\xc1\xc4", "replace", "abc\ufffd\u804a"),
          ("\u30fb", "strict", b"\x819\xa79"),
      )
      has_iso10646 = True
  
  class Test_HZ(test_multibytecodec_support.TestBase, unittest.TestCase):
      encoding = 'hz'
      tstring = test_multibytecodec_support.load_teststring('hz')
      codectests = (
          # test '~\n' (3 lines)
          (b'This sentence is in ASCII.\n'
           b'The next sentence is in GB.~{<:Ky2;S{#,~}~\n'
           b'~{NpJ)l6HK!#~}Bye.\n',
           'strict',
           'This sentence is in ASCII.\n'
           'The next sentence is in GB.'
           '\u5df1\u6240\u4e0d\u6b32\uff0c\u52ff\u65bd\u65bc\u4eba\u3002'
           'Bye.\n'),
          # test '~\n' (4 lines)
          (b'This sentence is in ASCII.\n'
           b'The next sentence is in GB.~\n'
           b'~{<:Ky2;S{#,NpJ)l6HK!#~}~\n'
           b'Bye.\n',
           'strict',
           'This sentence is in ASCII.\n'
           'The next sentence is in GB.'
           '\u5df1\u6240\u4e0d\u6b32\uff0c\u52ff\u65bd\u65bc\u4eba\u3002'
           'Bye.\n'),
          # invalid bytes
          (b'ab~cd', 'replace', 'ab\uFFFDd'),
          (b'ab\xffcd', 'replace', 'ab\uFFFDcd'),
          (b'ab~{\x81\x81\x41\x44~}cd', 'replace', 'ab\uFFFD\uFFFD\u804Acd'),
      )
  
  def test_main():
      support.run_unittest(__name__)
  
  if __name__ == "__main__":
      test_main()
  