Lib/test/test_pep263.py

   1 # -*- coding: koi8-r -*-
   2
   3 import unittest
   4 from test import test_support
   5
   6 class PEP263Test(unittest.TestCase):
   7
   8     def test_pep263(self):
   9         self.assertEqual(
  10             u"ðÉÔÏÎ".encode("utf-8"),
  11             '\xd0\x9f\xd0\xb8\xd1\x82\xd0\xbe\xd0\xbd'
  12         )
  13         self.assertEqual(
  14             u"\ð".encode("utf-8"),
  15             '\\\xd0\x9f'
  16         )
  17
  18     def test_compilestring(self):
  19         # see #1882
  20         c = compile("\n# coding: utf-8\nu = u'\xc3\xb3'\n", "dummy", "exec")
  21         d = {}
  22         exec c in d
  23         self.assertEqual(d['u'], u'\xf3')
  24
  25
  26     def test_issue3297(self):
  27         c = compile("a, b = '\U0001010F', '\\U0001010F'", "dummy", "exec")
  28         d = {}
  29         exec(c, d)
  30         self.assertEqual(d['a'], d['b'])
  31         self.assertEqual(len(d['a']), len(d['b']))
  32
  33     def test_issue7820(self):
  34         # Ensure that check_bom() restores all bytes in the right order if
  35         # check_bom() fails in pydebug mode: a buffer starts with the first
  36         # byte of a valid BOM, but next bytes are different
  37
  38         # one byte in common with the UTF-16-LE BOM
  39         self.assertRaises(SyntaxError, eval, '\xff\x20')
  40
  41         # two bytes in common with the UTF-8 BOM
  42         self.assertRaises(SyntaxError, eval, '\xef\xbb\x20')
  43
  44 def test_main():
  45     test_support.run_unittest(PEP263Test)
  46
  47 if __name__=="__main__":
  48     test_main()