diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/__init__.py | 0 | ||||
| -rw-r--r-- | tests/context.py | 53 | ||||
| -rw-r--r-- | tests/test_process.py | 124 |
3 files changed, 177 insertions, 0 deletions
diff --git a/tests/__init__.py b/tests/__init__.py new file mode 100644 index 0000000..e69de29 --- /dev/null +++ b/tests/__init__.py diff --git a/tests/context.py b/tests/context.py new file mode 100644 index 0000000..d859c2f --- /dev/null +++ b/tests/context.py @@ -0,0 +1,53 @@ +# this context.py should be included by all tests +# idea from http://kennethreitz.com/repository-structure-and-python.html + +import os +import shutil +import sys +import tempfile + +import whatmaps + +sys.path.insert(0, os.path.abspath('..')) + +# the top or root dir of the git-buildpackage source tree to be used by tests +projectdir = os.path.dirname(os.path.dirname(os.path.abspath(whatmaps.__file__))) + +_chdir_backup = None +_tmpdirs = [] + +def chdir(dir): + global _chdir_backup + if not _chdir_backup: + _chdir_backup = os.path.abspath(os.curdir) + os.chdir(str(dir)) + +def new_tmpdir(name): + global _tmpdirs + prefix='whatmaps_%s_' % name + tmpdir = TmpDir(prefix) + _tmpdirs.append(tmpdir) + return tmpdir + +def teardown(): + if _chdir_backup: + os.chdir(_chdir_backup) + for tmpdir in _tmpdirs: + tmpdir.rmdir() + del _tmpdirs[:] + +class TmpDir(object): + + def __init__(self, suffix='', prefix='tmp'): + self.path = tempfile.mkdtemp(suffix=suffix, prefix=prefix) + + def rmdir(self): + if self.path and not os.getenv("WHATMAPS_TESTS_NOCLEAN"): + shutil.rmtree(self.path) + self.path = None + + def __repr__(self): + return self.path + + def join(self, *args): + return os.path.join(self.path, *args) diff --git a/tests/test_process.py b/tests/test_process.py new file mode 100644 index 0000000..da47ebd --- /dev/null +++ b/tests/test_process.py @@ -0,0 +1,124 @@ +# vim: set fileencoding=utf-8 : +# (C) 2014 Guido Günther <agx@sigxcpu.org> +# This program 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. +# +# This program 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 this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +"""Test L{whatmaps.process} config""" + +import os +import sys +import unittest +import random + +from whatmaps.process import Process + +from . import context + +class TestWhatmapsProcess(unittest.TestCase): + def setUp(self): + self.tmpdir = context.new_tmpdir(__name__) + self.procfs = str(self.tmpdir) + self.pid = random.randint(1, 65535) + self.piddir = os.path.join(self.procfs, str(self.pid)) + os.mkdir(self.piddir) + self.exe = os.path.join(self.piddir, 'exe') + self.cmdline = os.path.join(self.piddir, 'cmdline') + self.maps = os.path.join(self.piddir, 'maps') + self._write_cmdline('doesnotmatter') # Write at least an empty cmdline + self._write_exe_symlink('acommand') + self._write_maps([['f32b43221000-7f32b4522000', + '---p', + '00020000', + 'fe:02', + '1704011', + '/lib/x86_64-linux-gnu/libselinux.so.1'], + ['7f32b4521000-7f32b4623000', + 'r--p', + '00020000', + 'fe:02', + '1704011', + '/lib/x86_64-linux-gnu/libselinux.so.1'], + ]) + + def _write_exe_symlink(self, name): + exe = os.path.join(str(self.tmpdir), name) + os.symlink(exe, self.exe) + + def _write_cmdline(self, text=''): + f = open(self.cmdline, 'w') + f.write(text) + f.close() + + def _write_maps(self, data): + f = open(self.maps, 'w') + f.write('\n'.join([' '.join(r) for r in data])) + f.close() + + def test_nonexistent(self): + """No exe link should create an 'empty' object""" + os.unlink(self.exe) + p = Process(self.pid, self.procfs) + self.assertIsNone(p.exe) + self.assertIsNone(p.cmdline) + + def test_deleted(self): + """Handle symlink to deleted binaries""" + exe = '/does/not/matter' + os.unlink(self.exe) + os.symlink(os.path.join(self.piddir, '%s (deleted)' % exe), + self.exe) + + p = Process(self.pid, procfs=self.procfs) + self.assertEqual(p.exe, exe) + self.assertTrue(p.deleted, True) + self.assertEqual(p.cmdline, 'doesnotmatter') + + def test_existing(self): + p = Process(self.pid, procfs=self.procfs) + exe = os.path.join(str(self.tmpdir), 'acommand') + self.assertEqual(p.exe, exe) + self.assertEqual(p.cmdline, 'doesnotmatter') + self.assertFalse(p.deleted) + self.assertEqual(str(p), + "<Process object pid:%d>" % self.pid) + + def test_maps(self): + """Check whether the process maps a shared object at path""" + p = Process(self.pid, procfs=self.procfs) + self.assertFalse(p.maps('/does/not/exist')) + self.assertTrue(p.maps('/lib/x86_64-linux-gnu/libselinux.so.1')) + + def test_no_maps(self): + """Check if we don't fail if the process went away""" + os.unlink(self.maps) + p = Process(self.pid, procfs=self.procfs) + self.assertFalse(p.maps('/does/not/exist')) + self.assertFalse(p.maps('/lib/x86_64-linux-gnu/libselinux.so.1')) + + def test_broken_maps(self): + """Continue on unparseable map file""" + # Provoke index error by to few items in line + self._write_maps([['do', 'few', 'items']]) + p = Process(self.pid, procfs=self.procfs) + self.assertFalse(p.maps('/does/not/exist')) + self.assertFalse(p.maps('/lib/x86_64-linux-gnu/libselinux.so.1')) + + @unittest.skipIf(os.getuid() == 0, "Skip if root") + def test_broken_unreadable_map(self): + """Raise error if map file is unreadable""" + os.chmod(self.maps, 0) + p = Process(self.pid, procfs=self.procfs) + self.assertRaises(IOError, p.maps, '/does/not/exist') + + def tearDown(self): + context.teardown() |