mirror of https://github.com/python/cpython
42 lines
1.3 KiB
Python
42 lines
1.3 KiB
Python
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# -*- coding: utf-8 -*-
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import sys
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import codecs
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import logging
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import StringIO
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import unittest
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from lib2to3 import main
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class TestMain(unittest.TestCase):
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def tearDown(self):
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# Clean up logging configuration down by main.
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del logging.root.handlers[:]
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def run_2to3_capture(self, args, in_capture, out_capture, err_capture):
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save_stdin = sys.stdin
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save_stdout = sys.stdout
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save_stderr = sys.stderr
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sys.stdin = in_capture
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sys.stdout = out_capture
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sys.stderr = err_capture
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try:
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return main.main("lib2to3.fixes", args)
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finally:
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sys.stdin = save_stdin
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sys.stdout = save_stdout
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sys.stderr = save_stderr
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def test_unencodable_diff(self):
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input_stream = StringIO.StringIO(u"print 'nothing'\nprint u'über'\n")
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out = StringIO.StringIO()
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out_enc = codecs.getwriter("ascii")(out)
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err = StringIO.StringIO()
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ret = self.run_2to3_capture(["-"], input_stream, out_enc, err)
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self.assertEqual(ret, 0)
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output = out.getvalue()
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self.assertTrue("-print 'nothing'" in output)
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self.assertTrue("WARNING: couldn't encode <stdin>'s diff for "
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"your terminal" in err.getvalue())
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