author | Brendan Donegan <brendand@symbian.org> |
Thu, 01 Jul 2010 14:51:21 +0100 | |
branch | nvmemory |
changeset 81 | 0f0bbe5dfe4b |
parent 1 | 2fb8b9db1c86 |
permissions | -rw-r--r-- |
1
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Initial QEMU (symbian-qemu-0.9.1-12) import
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#! /usr/bin/env python |
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"""Test script for popen2.py""" |
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|
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import warnings |
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warnings.filterwarnings("ignore", ".*popen2 module is deprecated.*", |
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DeprecationWarning) |
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warnings.filterwarnings("ignore", "os\.popen. is deprecated.*", |
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DeprecationWarning) |
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|
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import os |
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import sys |
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import unittest |
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import popen2 |
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|
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from test.test_support import TestSkipped, run_unittest, reap_children |
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|
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if sys.platform[:4] == 'beos' or sys.platform[:6] == 'atheos': |
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# Locks get messed up or something. Generally we're supposed |
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# to avoid mixing "posix" fork & exec with native threads, and |
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# they may be right about that after all. |
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raise TestSkipped("popen2() doesn't work on " + sys.platform) |
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|
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# if we don't have os.popen, check that |
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# we have os.fork. if not, skip the test |
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# (by raising an ImportError) |
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try: |
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from os import popen |
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del popen |
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except ImportError: |
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from os import fork |
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del fork |
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|
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class Popen2Test(unittest.TestCase): |
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cmd = "cat" |
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if os.name == "nt": |
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cmd = "more" |
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teststr = "ab cd\n" |
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# "more" doesn't act the same way across Windows flavors, |
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# sometimes adding an extra newline at the start or the |
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# end. So we strip whitespace off both ends for comparison. |
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expected = teststr.strip() |
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|
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def setUp(self): |
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popen2._cleanup() |
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# When the test runs, there shouldn't be any open pipes |
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self.assertFalse(popen2._active, "Active pipes when test starts" + |
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repr([c.cmd for c in popen2._active])) |
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def tearDown(self): |
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for inst in popen2._active: |
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inst.wait() |
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popen2._cleanup() |
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self.assertFalse(popen2._active, "_active not empty") |
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reap_children() |
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def validate_output(self, teststr, expected_out, r, w, e=None): |
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w.write(teststr) |
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w.close() |
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got = r.read() |
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self.assertEquals(expected_out, got.strip(), "wrote %r read %r" % |
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(teststr, got)) |
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if e is not None: |
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got = e.read() |
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self.assertFalse(got, "unexpected %r on stderr" % got) |
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def test_popen2(self): |
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r, w = popen2.popen2(self.cmd) |
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self.validate_output(self.teststr, self.expected, r, w) |
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def test_popen3(self): |
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if os.name == 'posix': |
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r, w, e = popen2.popen3([self.cmd]) |
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self.validate_output(self.teststr, self.expected, r, w, e) |
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r, w, e = popen2.popen3(self.cmd) |
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self.validate_output(self.teststr, self.expected, r, w, e) |
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def test_os_popen2(self): |
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# same test as test_popen2(), but using the os.popen*() API |
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w, r = os.popen2(self.cmd) |
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self.validate_output(self.teststr, self.expected, r, w) |
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def test_os_popen3(self): |
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# same test as test_popen3(), but using the os.popen*() API |
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if os.name == 'posix': |
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w, r, e = os.popen3([self.cmd]) |
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self.validate_output(self.teststr, self.expected, r, w, e) |
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w, r, e = os.popen3(self.cmd) |
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self.validate_output(self.teststr, self.expected, r, w, e) |
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def test_main(): |
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run_unittest(Popen2Test) |
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if __name__ == "__main__": |
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test_main() |