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shellutils_tests.py
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Tue, Apr 30, 19:08

shellutils_tests.py
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# -*- coding: utf-8 -*-
##
## This file is part of Invenio.
## Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008 CERN.
##
## Invenio is free software; you can redistribute it and/or
## modify it under the terms of the GNU General Public License as
## published by the Free Software Foundation; either version 2 of the
## License, or (at your option) any later version.
##
## Invenio is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with Invenio; if not, write to the Free Software Foundation, Inc.,
## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
"""Unit tests for shellutils library."""
__revision__ = "$Id$"
import unittest
import time
import os
from invenio.config import CFG_TMPDIR
from invenio.shellutils import escape_shell_arg, run_shell_command, \
run_process_with_timeout, Timeout
from invenio.testutils import make_test_suite, run_test_suite
class EscapeShellArgTest(unittest.TestCase):
"""Testing of escaping shell arguments."""
def test_escape_simple(self):
"""shellutils - escaping simple strings"""
self.assertEqual("'hello'",
escape_shell_arg("hello"))
def test_escape_backtick(self):
"""shellutils - escaping strings containing backticks"""
self.assertEqual(r"'hello `world`'",
escape_shell_arg(r'hello `world`'))
def test_escape_quoted(self):
"""shellutils - escaping strings containing single quotes"""
self.assertEqual("'hello'\\''world'",
escape_shell_arg("hello'world"))
def test_escape_double_quoted(self):
"""shellutils - escaping strings containing double-quotes"""
self.assertEqual("""'"hello world"'""",
escape_shell_arg('"hello world"'))
def test_escape_complex_quoted(self):
"""shellutils - escaping strings containing complex quoting"""
self.assertEqual(r"""'"Who is this `Eve'\'', Bob?", asked Alice.'""",
escape_shell_arg(r""""Who is this `Eve', Bob?", asked Alice."""))
def test_escape_windows_style_path(self):
"""shellutils - escaping strings containing windows-style file paths"""
self.assertEqual(r"'C:\Users\Test User\My Documents" \
"\funny file name (for testing).pdf'",
escape_shell_arg(r'C:\Users\Test User\My Documents' \
'\funny file name (for testing).pdf'))
def test_escape_unix_style_path(self):
"""shellutils - escaping strings containing unix-style file paths"""
self.assertEqual(r"'/tmp/z_temp.txt'",
escape_shell_arg(r'/tmp/z_temp.txt'))
def test_escape_number_sign(self):
"""shellutils - escaping strings containing the number sign"""
self.assertEqual(r"'Python comments start with #.'",
escape_shell_arg(r'Python comments start with #.'))
def test_escape_ampersand(self):
"""shellutils - escaping strings containing ampersand"""
self.assertEqual(r"'Today the weather is hot & sunny'",
escape_shell_arg(r'Today the weather is hot & sunny'))
def test_escape_greater_than(self):
"""shellutils - escaping strings containing the greater-than sign"""
self.assertEqual(r"'10 > 5'",
escape_shell_arg(r'10 > 5'))
def test_escape_less_than(self):
"""shellutils - escaping strings containing the less-than sign"""
self.assertEqual(r"'5 < 10'",
escape_shell_arg(r'5 < 10'))
class RunShellCommandTest(unittest.TestCase):
"""Testing of running shell commands."""
def test_run_cmd_hello(self):
"""shellutils - running simple command"""
self.assertEqual((0, "hello world\n", ''),
run_shell_command("echo 'hello world'"))
def test_run_cmd_hello_args(self):
"""shellutils - running simple command with an argument"""
self.assertEqual((0, "hello world\n", ''),
run_shell_command("echo 'hello %s'", ("world",)))
def test_run_cmd_hello_quote(self):
"""shellutils - running simple command with an argument with quote"""
self.assertEqual((0, "hel'lo world\n", ''),
run_shell_command("echo %s %s", ("hel'lo", "world",)))
def test_run_cmd_errorneous(self):
"""shellutils - running wrong command should raise an exception"""
self.assertRaises(TypeError, run_shell_command,
"echo %s %s %s", ("hello", "world",))
class RunProcessWithTimeoutTest(unittest.TestCase):
"""Testing of running a process with timeout."""
def setUp(self):
self.script_path = os.path.join(CFG_TMPDIR, 'test_sleeping.sh')
script = open(self.script_path, 'w')
print >> script, "#!/bin/sh"
print >> script, "date"
print >> script, "sleep $1"
print >> script, "date"
script.close()
os.chmod(self.script_path, 0700)
def tearDown(self):
os.remove(self.script_path)
def test_run_cmd_timeout(self):
"""shellutils - running simple command with expiring timeout"""
t1 = time.time()
self.assertRaises(Timeout, run_process_with_timeout, (self.script_path, '15'), timeout=5)
self.failUnless(time.time() - t1 < 7)
def test_run_cmd_no_timeout(self):
"""shellutils - running simple command with non expiring timeout"""
t1 = time.time()
self.assertEqual(3, len(run_process_with_timeout((self.script_path, '5'), timeout=15)[1].split('\n')))
self.failUnless(time.time() - t1 < 7)
TEST_SUITE = make_test_suite(EscapeShellArgTest,
RunShellCommandTest,
RunProcessWithTimeoutTest)
if __name__ == "__main__":
run_test_suite(TEST_SUITE)

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