blob: 658b339f375a7eac1f7559742a79177b528e4c52 [file] [log] [blame]
# -*- coding: utf-8 -*-
#
# Copyright (C) 2019 Apple Inc. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
# OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
import unittest
from webkitpy.common.attribute_saver import AttributeSaver
class AttributeSaverTest(unittest.TestCase):
class SimpleTestClass:
def __init__(self):
self.value = 0
def test_class(self):
obj = self.SimpleTestClass()
self.assertEqual(obj.value, 0)
def test_normal_default(self):
obj = self.SimpleTestClass()
self.assertEqual(obj.value, 0)
with AttributeSaver(obj, "value"):
self.assertEqual(obj.value, None)
self.assertEqual(obj.value, 0)
def test_normal_value(self):
obj = self.SimpleTestClass()
self.assertEqual(obj.value, 0)
with AttributeSaver(obj, "value", 1):
self.assertEqual(obj.value, 1)
self.assertEqual(obj.value, 0)
def test_normal_value_on_exception(self):
with self.assertRaises(RuntimeError):
obj = self.SimpleTestClass()
self.assertEqual(obj.value, 0)
try:
with AttributeSaver(obj, "value", 1):
self.assertEqual(obj.value, 1)
raise RuntimeError()
except:
self.assertEqual(obj.value, 0)
raise
self.assertEqual(obj.value, 0)
def test_normal_value_on_normal_exit(self):
obj = self.SimpleTestClass()
self.assertEqual(obj.value, 0)
try:
with AttributeSaver(obj, "value", 1):
self.assertEqual(obj.value, 1)
except:
self.assertEqual(obj.value, 0)
raise
self.assertEqual(obj.value, 0)
def test_normal_value_with_finally_on_exception(self):
with self.assertRaises(RuntimeError):
obj = self.SimpleTestClass()
self.assertEqual(obj.value, 0)
try:
with AttributeSaver(obj, "value", 1):
self.assertEqual(obj.value, 1)
raise RuntimeError()
finally:
self.assertEqual(obj.value, 0)
self.assertEqual(obj.value, 0)
def test_normal_value_with_finally_on_normal_exit(self):
obj = self.SimpleTestClass()
self.assertEqual(obj.value, 0)
try:
with AttributeSaver(obj, "value", 1):
self.assertEqual(obj.value, 1)
finally:
self.assertEqual(obj.value, 0)
self.assertEqual(obj.value, 0)
def test_normal_value_with_else_on_exception(self):
with self.assertRaises(RuntimeError):
obj = self.SimpleTestClass()
self.assertEqual(obj.value, 0)
try:
with AttributeSaver(obj, "value", 1):
self.assertEqual(obj.value, 1)
raise RuntimeError()
except IOError:
self.assertFalse(True)
else:
self.assertEqual(obj.value, 0)
self.assertEqual(obj.value, 0)
def test_normal_value_with_else_on_normal_exit(self):
obj = self.SimpleTestClass()
self.assertEqual(obj.value, 0)
try:
with AttributeSaver(obj, "value", 1):
self.assertEqual(obj.value, 1)
except IOError:
self.assertFalse(True)
else:
self.assertEqual(obj.value, 0)
self.assertEqual(obj.value, 0)