Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_popen.py @ 54294:dba767bc3155 legacy-trunk

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remove mention of old ctypes version
author Benjamin Peterson <benjamin@python.org>
date Sat, 23 May 2009 20:59:09 +0000
parents 38d944efe600
children 221718e757ba e9a6234b26af
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #! /usr/bin/env python
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2 """Basic tests for os.popen()
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3
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4 Particularly useful for platforms that fake popen.
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5 """
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6
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7 import unittest
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8 from test import test_support
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9 import os, sys
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10
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11 # Test that command-lines get down as we expect.
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12 # To do this we execute:
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13 # python -c "import sys;print sys.argv" {rest_of_commandline}
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14 # This results in Python being spawned and printing the sys.argv list.
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15 # We can then eval() the result of this, and see what each argv was.
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16 python = sys.executable
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17 if ' ' in python:
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18 python = '"' + python + '"' # quote embedded space for cmdline
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19
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20 class PopenTest(unittest.TestCase):
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21 def _do_test_commandline(self, cmdline, expected):
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22 cmd = '%s -c "import sys;print sys.argv" %s' % (python, cmdline)
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23 data = os.popen(cmd).read()
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24 got = eval(data)[1:] # strip off argv[0]
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25 self.assertEqual(got, expected)
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26
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27 def test_popen(self):
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28 self.assertRaises(TypeError, os.popen)
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29 self._do_test_commandline(
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30 "foo bar",
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31 ["foo", "bar"]
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32 )
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33 self._do_test_commandline(
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34 'foo "spam and eggs" "silly walk"',
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35 ["foo", "spam and eggs", "silly walk"]
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36 )
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37 self._do_test_commandline(
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38 'foo "a \\"quoted\\" arg" bar',
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39 ["foo", 'a "quoted" arg', "bar"]
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40 )
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41 test_support.reap_children()
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42
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43 def test_main():
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44 test_support.run_unittest(PopenTest)
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45
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46 if __name__ == "__main__":
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47 test_main()