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      1 
      2 import test.test_support, unittest
      3 import os
      4 
      5 class CodingTest(unittest.TestCase):
      6     def test_bad_coding(self):
      7         module_name = 'bad_coding'
      8         self.verify_bad_module(module_name)
      9 
     10     def test_bad_coding2(self):
     11         module_name = 'bad_coding2'
     12         self.verify_bad_module(module_name)
     13 
     14     def verify_bad_module(self, module_name):
     15         self.assertRaises(SyntaxError, __import__, 'test.' + module_name)
     16 
     17         path = os.path.dirname(__file__)
     18         filename = os.path.join(path, module_name + '.py')
     19         with open(filename) as fp:
     20             text = fp.read()
     21         self.assertRaises(SyntaxError, compile, text, filename, 'exec')
     22 
     23     def test_error_from_string(self):
     24         # See http://bugs.python.org/issue6289
     25         input = u"# coding: ascii\n\N{SNOWMAN}".encode('utf-8')
     26         with self.assertRaises(SyntaxError) as c:
     27             compile(input, "<string>", "exec")
     28         expected = "'ascii' codec can't decode byte 0xe2 in position 16: " \
     29                    "ordinal not in range(128)"
     30         self.assertTrue(c.exception.args[0].startswith(expected))
     31 
     32 
     33 def test_main():
     34     test.test_support.run_unittest(CodingTest)
     35 
     36 if __name__ == "__main__":
     37     test_main()
     38