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# Copyright 2016 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
from __future__ import absolute_import
import unittest
from py_utils import contextlib_ext
class OptionalUnittest(unittest.TestCase):
class SampleContextMgr():
def __init__(self):
self.entered = False
self.exited = False
def __enter__(self):
self.entered = True
def __exit__(self, exc_type, exc_val, exc_tb):
self.exited = True
def testConditionTrue(self):
c = self.SampleContextMgr()
with contextlib_ext.Optional(c, True):
self.assertTrue(c.entered)
self.assertTrue(c.exited)
def testConditionFalse(self):
c = self.SampleContextMgr()
with contextlib_ext.Optional(c, False):
self.assertFalse(c.entered)
self.assertFalse(c.exited)
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