diff options
Diffstat (limited to 'lib/python2.7/test/test_popen.py')
-rw-r--r-- | lib/python2.7/test/test_popen.py | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/lib/python2.7/test/test_popen.py b/lib/python2.7/test/test_popen.py new file mode 100644 index 0000000..92b5e92 --- /dev/null +++ b/lib/python2.7/test/test_popen.py @@ -0,0 +1,52 @@ +#! /usr/bin/env python +"""Basic tests for os.popen() + + Particularly useful for platforms that fake popen. +""" + +import unittest +from test import test_support +import os, sys + +# Test that command-lines get down as we expect. +# To do this we execute: +# python -c "import sys;print sys.argv" {rest_of_commandline} +# This results in Python being spawned and printing the sys.argv list. +# We can then eval() the result of this, and see what each argv was. +python = sys.executable + +class PopenTest(unittest.TestCase): + def _do_test_commandline(self, cmdline, expected): + cmd = '%s -c "import sys;print sys.argv" %s' % (python, cmdline) + data = os.popen(cmd).read() + '\n' + got = eval(data)[1:] # strip off argv[0] + self.assertEqual(got, expected) + + def test_popen(self): + self.assertRaises(TypeError, os.popen) + self._do_test_commandline( + "foo bar", + ["foo", "bar"] + ) + self._do_test_commandline( + 'foo "spam and eggs" "silly walk"', + ["foo", "spam and eggs", "silly walk"] + ) + self._do_test_commandline( + 'foo "a \\"quoted\\" arg" bar', + ["foo", 'a "quoted" arg', "bar"] + ) + test_support.reap_children() + + def test_return_code(self): + self.assertEqual(os.popen("exit 0").close(), None) + if os.name == 'nt': + self.assertEqual(os.popen("exit 42").close(), 42) + else: + self.assertEqual(os.popen("exit 42").close(), 42 << 8) + +def test_main(): + test_support.run_unittest(PopenTest) + +if __name__ == "__main__": + test_main() |