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Viewing changes to Lib/test/test_os.py

  • Committer: Package Import Robot
  • Author(s): Matthias Klose
  • Date: 2012-03-09 19:28:43 UTC
  • mto: (36.1.11 sid)
  • mto: This revision was merged to the branch mainline in revision 51.
  • Revision ID: package-import@ubuntu.com-20120309192843-n84bbtrkfxw34p6n
Tags: upstream-2.7.3~rc1
Import upstream version 2.7.3~rc1

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Lib/test/test_os.py
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import signal
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import subprocess
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import time
 
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from test import test_support
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import mmap
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import uuid
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                value = popen.read().strip()
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                self.assertEqual(value, "World")
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    # On FreeBSD < 7 and OS X < 10.6, unsetenv() doesn't return a value (issue
 
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    # #13415).
 
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    @unittest.skipIf(sys.platform.startswith(('freebsd', 'darwin')),
 
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                     "due to known OS bug: see issue #13415")
 
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    def test_unset_error(self):
 
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        if sys.platform == "win32":
 
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            # an environment variable is limited to 32,767 characters
 
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            key = 'x' * 50000
 
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            self.assertRaises(ValueError, os.environ.__delitem__, key)
 
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        else:
 
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            # "=" is not allowed in a variable name
 
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            key = 'key='
 
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            self.assertRaises(OSError, os.environ.__delitem__, key)
 
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class WalkTests(unittest.TestCase):
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    """Tests for os.walk()."""
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        f.close()
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class URandomTests (unittest.TestCase):
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    def test_urandom(self):
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        try:
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            self.assertEqual(len(os.urandom(1)), 1)
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            self.assertEqual(len(os.urandom(10)), 10)
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            self.assertEqual(len(os.urandom(100)), 100)
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            self.assertEqual(len(os.urandom(1000)), 1000)
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            # see http://bugs.python.org/issue3708
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            self.assertRaises(TypeError, os.urandom, 0.9)
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            self.assertRaises(TypeError, os.urandom, 1.1)
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            self.assertRaises(TypeError, os.urandom, 2.0)
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        except NotImplementedError:
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            pass
 
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    def test_urandom_length(self):
 
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        self.assertEqual(len(os.urandom(0)), 0)
 
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        self.assertEqual(len(os.urandom(1)), 1)
 
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        self.assertEqual(len(os.urandom(10)), 10)
 
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        self.assertEqual(len(os.urandom(100)), 100)
 
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        self.assertEqual(len(os.urandom(1000)), 1000)
 
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    def test_urandom_value(self):
 
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        data1 = os.urandom(16)
 
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        data2 = os.urandom(16)
 
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        self.assertNotEqual(data1, data2)
 
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    def get_urandom_subprocess(self, count):
 
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        # We need to use repr() and eval() to avoid line ending conversions
 
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        # under Windows.
 
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        code = '\n'.join((
 
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            'import os, sys',
 
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            'data = os.urandom(%s)' % count,
 
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            'sys.stdout.write(repr(data))',
 
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            'sys.stdout.flush()',
 
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            'print >> sys.stderr, (len(data), data)'))
 
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        cmd_line = [sys.executable, '-c', code]
 
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        p = subprocess.Popen(cmd_line, stdin=subprocess.PIPE,
 
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                             stdout=subprocess.PIPE, stderr=subprocess.PIPE)
 
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        out, err = p.communicate()
 
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        self.assertEqual(p.wait(), 0, (p.wait(), err))
 
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        out = eval(out)
 
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        self.assertEqual(len(out), count, err)
 
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        return out
 
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    def test_urandom_subprocess(self):
 
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        data1 = self.get_urandom_subprocess(16)
 
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        data2 = self.get_urandom_subprocess(16)
 
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        self.assertNotEqual(data1, data2)
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    def test_execvpe_with_bad_arglist(self):
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        self.assertRaises(ValueError, os.execvpe, 'notepad', [], None)