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# -*- coding: utf-8 -*-
# basetest.py
# Copyright (C) 2013 LEAP
#
# 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 3 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, see <http://www.gnu.org/licenses/>.
"""
Common testing facilities
"""
import os
import platform
import shutil
import tempfile
try:
import unittest2 as unittest
except ImportError:
import unittest
from leap.common.check import leap_assert
from leap.common.files import mkdir_p, check_and_fix_urw_only
class BaseLeapTest(unittest.TestCase):
"""
Base Leap TestCase
"""
__name__ = "leap_test"
_system = platform.system()
@classmethod
def setUpClass(cls):
cls.setUpEnv()
@classmethod
def tearDownClass(cls):
cls.tearDownEnv()
@classmethod
def setUpEnv(cls):
"""
Sets up common facilities for testing this TestCase:
- custom PATH and HOME environmental variables
- creates a temporal folder to which those point.
It saves the old path and home vars so they can be restored later.
"""
cls.old_path = os.environ['PATH']
cls.old_home = os.environ['HOME']
cls.tempdir = tempfile.mkdtemp(prefix="leap_tests-")
cls.home = cls.tempdir
bin_tdir = os.path.join(
cls.tempdir,
'bin')
os.environ["PATH"] = bin_tdir
os.environ["HOME"] = cls.tempdir
@classmethod
def tearDownEnv(cls):
"""
Cleanup common facilities used for testing this TestCase:
- restores the default PATH and HOME variables
- removes the temporal folder
"""
os.environ["PATH"] = cls.old_path
os.environ["HOME"] = cls.old_home
# safety check! please do not wipe my home...
# XXX needs to adapt to non-linuces
leap_assert(
cls.tempdir.startswith('/tmp/leap_tests-') or
(cls.tempdir.startswith('/tmp/') and
cls.tempdir.startswith(tempfile.gettempdir()) and
'leap_tests-' in cls.tempdir) or
cls.tempdir.startswith('/var/folder'),
"beware! tried to remove a dir which does not "
"live in temporal folder!")
shutil.rmtree(cls.tempdir)
# you have to override these methods
# this way we ensure we did not put anything
# here that you can forget to call.
def setUp(self):
"""not implemented"""
raise NotImplementedError("abstract base class")
def tearDown(self):
"""not implemented"""
raise NotImplementedError("abstract base class")
#
# helper methods
#
def _missing_test_for_plat(self, do_raise=False):
"""
Raises NotImplementedError for this platform
if do_raise is True
:param do_raise: flag to actually raise exception
:type do_raise: bool
"""
if do_raise:
raise NotImplementedError(
"This test is not implemented "
"for the running platform: %s" %
self._system)
def get_tempfile(self, filename):
"""
Returns the path of a given filename
prepending the temporal dir associated with this
TestCase
:param filename: the filename
:type filename: str
"""
return os.path.join(self.tempdir, filename)
def touch(self, filepath):
"""
Touches a filepath, creating folders along
the way if needed.
:param filepath: path to be touched
:type filepath: str
"""
folder, filename = os.path.split(filepath)
if not os.path.isdir(folder):
mkdir_p(folder)
self.assertTrue(os.path.isdir(folder))
with open(filepath, 'w') as fp:
fp.write(' ')
self.assertTrue(os.path.isfile(filepath))
def chmod600(self, filepath):
"""
Chmods 600 a file
:param filepath: filepath to be chmodded
:type filepath: str
"""
check_and_fix_urw_only(filepath)
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