1 # -*- coding: utf-8 -*- 2 import sys 3 import codecs 4 import logging 5 import StringIO 6 import unittest 7 8 from lib2to3 import main 9 10 11 class TestMain(unittest.TestCase): 12 13 def tearDown(self): 14 # Clean up logging configuration down by main. 15 del logging.root.handlers[:] 16 17 def run_2to3_capture(self, args, in_capture, out_capture, err_capture): 18 save_stdin = sys.stdin 19 save_stdout = sys.stdout 20 save_stderr = sys.stderr 21 sys.stdin = in_capture 22 sys.stdout = out_capture 23 sys.stderr = err_capture 24 try: 25 return main.main("lib2to3.fixes", args) 26 finally: 27 sys.stdin = save_stdin 28 sys.stdout = save_stdout 29 sys.stderr = save_stderr 30 31 def test_unencodable_diff(self): 32 input_stream = StringIO.StringIO(u"print 'nothing'\nprint u'ber'\n") 33 out = StringIO.StringIO() 34 out_enc = codecs.getwriter("ascii")(out) 35 err = StringIO.StringIO() 36 ret = self.run_2to3_capture(["-"], input_stream, out_enc, err) 37 self.assertEqual(ret, 0) 38 output = out.getvalue() 39 self.assertTrue("-print 'nothing'" in output) 40 self.assertTrue("WARNING: couldn't encode <stdin>'s diff for " 41 "your terminal" in err.getvalue()) 42
