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59\A3R:\F3\CE"\B6\80\88\00\00i1u4ê\E9\F2á\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>C///</title>
</head>
#!/usr/bin/env python
#
# Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
# Copyright (c) 2008-2016 California Institute of Technology.
# Copyright (c) 2016-2023 The Uncertainty Quantification Foundation.
# License: 3-clause BSD.  The full license text is available at:
#  - https://github.com/uqfoundation/dill/blob/master/LICENSE

from dill import __diff as diff

import sys
IS_PYPY = not hasattr(sys, 'getrefcount')

class A:
    pass

def test_diff():
    a = A()
    b = A()
    c = A()
    a.a = b
    b.a = c
    diff.memorise(a)
    assert not diff.has_changed(a)
    c.a = 1
    assert diff.has_changed(a)
    diff.memorise(c, force=True)
    assert not diff.has_changed(a)
    c.a = 2
    assert diff.has_changed(a)
    changed = diff.whats_changed(a)
    assert list(changed[0].keys()) == ["a"]
    assert not changed[1]

    a2 = []
    b2 = [a2]
    c2 = [b2]
    diff.memorise(c2)
  