66 lines
2.5 KiB
Python
66 lines
2.5 KiB
Python
# Copyright (c) 2010 Google Inc. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following disclaimer
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# in the documentation and/or other materials provided with the
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# distribution.
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# * Neither the name of Google Inc. nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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import unittest
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from webkitpy.common.memoized import memoized
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class _TestObject(object):
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def __init__(self):
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self.callCount = 0
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@memoized
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def memoized_add(self, argument):
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"""testing docstring"""
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self.callCount += 1
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if argument is None:
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return None # Avoid the TypeError from None + 1
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return argument + 1
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class MemoizedTest(unittest.TestCase):
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def test_caching(self):
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test = _TestObject()
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test.callCount = 0
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self.assertEqual(test.memoized_add(1), 2)
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self.assertEqual(test.callCount, 1)
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self.assertEqual(test.memoized_add(1), 2)
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self.assertEqual(test.callCount, 1)
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# Validate that callCount is working as expected.
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self.assertEqual(test.memoized_add(2), 3)
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self.assertEqual(test.callCount, 2)
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def test_tearoff(self):
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test = _TestObject()
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# Make sure that get()/tear-offs work:
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tearoff = test.memoized_add
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self.assertEqual(tearoff(4), 5)
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self.assertEqual(test.callCount, 1)
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