cpython/Lib/lib2to3/tests/test_main.py
Benjamin Peterson d56a5d7156 Merged revisions 77103,77105-77106 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

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  r77103 | benjamin.peterson | 2009-12-28 18:06:20 -0600 (Mon, 28 Dec 2009) | 57 lines

  Merged revisions 77102 via svnmerge from
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    r77102 | benjamin.peterson | 2009-12-28 17:50:41 -0600 (Mon, 28 Dec 2009) | 50 lines

    Merged revisions 76871-76872,77093-77095,77097-77101 via svnmerge from
    svn+ssh://pythondev@svn.python.org/sandbox/trunk/2to3/lib2to3

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      r76871 | benjamin.peterson | 2009-12-17 20:49:21 -0600 (Thu, 17 Dec 2009) | 1 line

      handle unencodable diffs gracefully #5093
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      r76872 | benjamin.peterson | 2009-12-17 20:51:37 -0600 (Thu, 17 Dec 2009) | 1 line

      fix emacs header
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      r77093 | benjamin.peterson | 2009-12-28 14:43:32 -0600 (Mon, 28 Dec 2009) | 7 lines

      replace callable(x) with isinstance(x, collections.Callable) #7006

      This is a more accurate translation than hasattr(x, '__call__') which failed in
      the case that somebody had put __call__ in the instance dictionary.

      Patch mostly by Joe Amenta.
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      r77094 | benjamin.peterson | 2009-12-28 14:45:13 -0600 (Mon, 28 Dec 2009) | 2 lines

      deuglify imports
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      clean up imports and whitespace
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      r77098 | benjamin.peterson | 2009-12-28 16:43:35 -0600 (Mon, 28 Dec 2009) | 1 line

      *** empty log message ***
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      r77099 | benjamin.peterson | 2009-12-28 16:45:10 -0600 (Mon, 28 Dec 2009) | 1 line

      revert unintended change
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      r77100 | benjamin.peterson | 2009-12-28 16:53:21 -0600 (Mon, 28 Dec 2009) | 1 line

      revert unintended changes
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      r77101 | benjamin.peterson | 2009-12-28 17:46:02 -0600 (Mon, 28 Dec 2009) | 1 line

      normalize whitespace
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  r77105 | benjamin.peterson | 2009-12-28 18:37:04 -0600 (Mon, 28 Dec 2009) | 1 line

  fix test on py3
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  r77106 | benjamin.peterson | 2009-12-28 18:38:47 -0600 (Mon, 28 Dec 2009) | 9 lines

  Merged revisions 77104 via svnmerge from
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    r77104 | benjamin.peterson | 2009-12-28 18:09:33 -0600 (Mon, 28 Dec 2009) | 1 line

    enable test_main.py
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2009-12-29 00:44:14 +00:00

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Python

# -*- coding: utf-8 -*-
import sys
import codecs
import io
import unittest
from lib2to3 import main
class TestMain(unittest.TestCase):
def run_2to3_capture(self, args, in_capture, out_capture, err_capture):
save_stdin = sys.stdin
save_stdout = sys.stdout
save_stderr = sys.stderr
sys.stdin = in_capture
sys.stdout = out_capture
sys.stderr = err_capture
try:
return main.main("lib2to3.fixes", args)
finally:
sys.stdin = save_stdin
sys.stdout = save_stdout
sys.stderr = save_stderr
def test_unencodable_diff(self):
input_stream = io.StringIO("print 'nothing'\nprint u'über'\n")
out = io.BytesIO()
out_enc = codecs.getwriter("ascii")(out)
err = io.StringIO()
ret = self.run_2to3_capture(["-"], input_stream, out_enc, err)
self.assertEqual(ret, 0)
output = out.getvalue().decode("ascii")
self.assertTrue("-print 'nothing'" in output)
self.assertTrue("WARNING: couldn't encode <stdin>'s diff for "
"your terminal" in err.getvalue())