Fix quoted system command tests to pass on Python 2 and 3.

IPython/utils/tests/test_process.py

@@ -1,111 +1,111 b''
 # encoding: utf-8
 """
 Tests for platutils.py
 """
 
 #-----------------------------------------------------------------------------
 #  Copyright (C) 2008-2009  The IPython Development Team
 #
 #  Distributed under the terms of the BSD License.  The full license is in
 #  the file COPYING, distributed as part of this software.
 #-----------------------------------------------------------------------------
 
 #-----------------------------------------------------------------------------
 # Imports
 #-----------------------------------------------------------------------------
 
 import sys
 from unittest import TestCase
 
 import nose.tools as nt
 
 from IPython.utils.process import (find_cmd, FindCmdError, arg_split,
                                    system, getoutput, getoutputerror)
 from IPython.testing import decorators as dec
 from IPython.testing import tools as tt
 
 #-----------------------------------------------------------------------------
 # Tests
 #-----------------------------------------------------------------------------
 
 def test_find_cmd_python():
     """Make sure we find sys.exectable for python."""
     nt.assert_equals(find_cmd('python'), sys.executable)
 
     
 @dec.skip_win32
 def test_find_cmd_ls():
     """Make sure we can find the full path to ls."""
     path = find_cmd('ls')
     nt.assert_true(path.endswith('ls'))
 
     
 def has_pywin32():
     try:
         import win32api
     except ImportError:
         return False
     return True
 
 
 @dec.onlyif(has_pywin32, "This test requires win32api to run")
 def test_find_cmd_pythonw():
     """Try to find pythonw on Windows."""
     path = find_cmd('pythonw')
     nt.assert_true(path.endswith('pythonw.exe'))
 
 
 @dec.onlyif(lambda : sys.platform != 'win32' or has_pywin32(),
             "This test runs on posix or in win32 with win32api installed")
 def test_find_cmd_fail():
     """Make sure that FindCmdError is raised if we can't find the cmd."""
     nt.assert_raises(FindCmdError,find_cmd,'asdfasdf')
 
     
 def test_arg_split():
     """Ensure that argument lines are correctly split like in a shell."""
     tests = [['hi', ['hi']],
              [u'hi', [u'hi']],
              ['hello there', ['hello', 'there']],
              [u'h\N{LATIN SMALL LETTER A WITH CARON}llo', [u'h\N{LATIN SMALL LETTER A WITH CARON}llo']],
              ['something "with quotes"', ['something', '"with quotes"']],
              ]
     for argstr, argv in tests:
         nt.assert_equal(arg_split(argstr), argv)
 
 
 class SubProcessTestCase(TestCase, tt.TempFileMixin):
     def setUp(self):
         """Make a valid python temp file."""
         lines = ["from __future__ import print_function",
                  "import sys",
                  "print('on stdout', end='', file=sys.stdout)",
                  "print('on stderr', end='', file=sys.stderr)",
                  "sys.stdout.flush()",
                  "sys.stderr.flush()"]
         self.mktmp('\n'.join(lines))
 
     def test_system(self):
         status = system('python "%s"' % self.fname)
         self.assertEquals(status, 0)
 
     def test_system_quotes(self):
         status = system('python -c "import sys"')
         self.assertEquals(status, 0)
 
     def test_getoutput(self):
         out = getoutput('python "%s"' % self.fname)
         self.assertEquals(out, 'on stdout')
 
     def test_getoutput_quoted(self):
-        out = getoutput('python -c "print 1"')
+        out = getoutput('python -c "print (1)"')
         self.assertEquals(out.strip(), '1')
-        out = getoutput("python -c 'print 1'")
+        out = getoutput("python -c 'print (1)'")
         self.assertEquals(out.strip(), '1')
-        out = getoutput("python -c 'print \"1\"'")
+        out = getoutput("python -c 'print (\"1\")'")
         self.assertEquals(out.strip(), '1')
 
     def test_getoutput(self):
         out, err = getoutputerror('python "%s"' % self.fname)
         self.assertEquals(out, 'on stdout')
         self.assertEquals(err, 'on stderr')