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# fixtures: Fixtures with cleanups for testing and convenience.
#
# Copyright (c) 2011, Robert Collins <robertc@robertcollins.net>
#
# Licensed under either the Apache License, Version 2.0 or the BSD 3-clause
# license at the users choice. A copy of both licenses are available in the
# project source as Apache-2.0 and BSD. You may not use this file except in
# compliance with one of these two licences.
#
# Unless required by applicable law or agreed to in writing, software
# distributed under these licenses is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# license you chose for the specific language governing permissions and
# limitations under that license.
import sys
import testtools
from fixtures import (
PythonPathEntry,
TempDir,
)
class TestPythonPathEntry(testtools.TestCase):
def test_adds_missing_to_end_sys_path(self):
uniquedir = self.useFixture(TempDir()).path
fixture = PythonPathEntry(uniquedir)
self.assertFalse(uniquedir in sys.path)
with fixture:
self.assertTrue(uniquedir in sys.path)
self.assertFalse(uniquedir in sys.path)
def test_doesnt_alter_existing_entry(self):
existingdir = sys.path[0]
expectedlen = len(sys.path)
fixture = PythonPathEntry(existingdir)
with fixture:
self.assertTrue(existingdir in sys.path)
self.assertEqual(expectedlen, len(sys.path))
self.assertTrue(existingdir in sys.path)
self.assertEqual(expectedlen, len(sys.path))
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