59 lines
1.7 KiB
Python
59 lines
1.7 KiB
Python
# -*- coding: utf-8 -*-
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright (C) 2012 Yahoo! Inc. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import functools
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import unittest
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from taskflow import utils
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class UtilTest(unittest.TestCase):
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def test_rollback_accum(self):
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context = {}
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def caller(token, e):
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context[token] = True
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accum = utils.RollbackAccumulator()
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def blowup():
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for i in range(0, 10):
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accum.add(functools.partial(caller, i))
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self.assertEquals(0, len(context))
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raise Exception
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# Test manual triggering
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self.assertEquals(0, len(accum))
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self.assertRaises(Exception, blowup)
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self.assertEquals(10, len(accum))
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self.assertEquals(0, len(context))
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accum.rollback(Exception())
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self.assertEquals(10, len(context))
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# Test context manager triggering
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context = {}
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accum.reset()
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self.assertEquals(0, len(accum))
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try:
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with accum:
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blowup()
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except Exception:
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pass
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self.assertEquals(10, len(accum))
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self.assertEquals(10, len(context))
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