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111 lines
2.7 KiB
Python
111 lines
2.7 KiB
Python
5 years ago
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#!/usr/bin/env python
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#
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# Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
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# Copyright (c) 2008-2016 California Institute of Technology.
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# Copyright (c) 2016-2019 The Uncertainty Quantification Foundation.
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# License: 3-clause BSD. The full license text is available at:
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# - https://github.com/uqfoundation/dill/blob/master/LICENSE
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from dill import __diff as diff
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import sys
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IS_PYPY = not hasattr(sys, 'getrefcount')
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class A:
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pass
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def test_diff():
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a = A()
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b = A()
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c = A()
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a.a = b
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b.a = c
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diff.memorise(a)
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assert not diff.has_changed(a)
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c.a = 1
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assert diff.has_changed(a)
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diff.memorise(c, force=True)
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assert not diff.has_changed(a)
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c.a = 2
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assert diff.has_changed(a)
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changed = diff.whats_changed(a)
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assert list(changed[0].keys()) == ["a"]
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assert not changed[1]
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a2 = []
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b2 = [a2]
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c2 = [b2]
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diff.memorise(c2)
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assert not diff.has_changed(c2)
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a2.append(1)
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assert diff.has_changed(c2)
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changed = diff.whats_changed(c2)
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assert changed[0] == {}
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assert changed[1]
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a3 = {}
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b3 = {1: a3}
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c3 = {1: b3}
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diff.memorise(c3)
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assert not diff.has_changed(c3)
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a3[1] = 1
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assert diff.has_changed(c3)
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changed = diff.whats_changed(c3)
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assert changed[0] == {}
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assert changed[1]
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if not IS_PYPY:
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try:
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import abc
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# make sure the "_abc_invaldation_counter" doesn't make test fail
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diff.memorise(abc.ABCMeta, force=True)
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assert not diff.has_changed(abc)
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abc.ABCMeta.zzz = 1
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assert diff.has_changed(abc)
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changed = diff.whats_changed(abc)
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assert list(changed[0].keys()) == ["ABCMeta"]
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assert not changed[1]
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except ImportError:
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pass
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'''
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import Queue
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diff.memorise(Queue, force=True)
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assert not diff.has_changed(Queue)
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Queue.Queue.zzz = 1
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assert diff.has_changed(Queue)
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changed = diff.whats_changed(Queue)
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assert list(changed[0].keys()) == ["Queue"]
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assert not changed[1]
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import math
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diff.memorise(math, force=True)
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assert not diff.has_changed(math)
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math.zzz = 1
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assert diff.has_changed(math)
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changed = diff.whats_changed(math)
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assert list(changed[0].keys()) == ["zzz"]
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assert not changed[1]
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'''
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a = A()
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b = A()
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c = A()
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a.a = b
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b.a = c
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diff.memorise(a)
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assert not diff.has_changed(a)
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c.a = 1
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assert diff.has_changed(a)
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diff.memorise(c, force=True)
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assert not diff.has_changed(a)
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del c.a
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assert diff.has_changed(a)
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changed = diff.whats_changed(a)
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assert list(changed[0].keys()) == ["a"]
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assert not changed[1]
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if __name__ == '__main__':
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test_diff()
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