#!/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) assert not diff.has_changed(c2) a2.append(1) assert diff.has_changed(c2) changed = diff.whats_changed(c2) assert changed[0] == {} assert changed[1] a3 = {} b3 = {1: a3} c3 = {1: b3} diff.memorise(c3) assert not diff.has_changed(c3) a3[1] = 1 assert diff.has_changed(c3) changed = diff.whats_changed(c3) assert changed[0] == {} assert changed[1] if not IS_PYPY: import abc # make sure the "_abc_invaldation_counter" doesn't make test fail diff.memorise(abc.ABCMeta, force=True) assert not diff.has_changed(abc) abc.ABCMeta.zzz = 1 assert diff.has_changed(abc) changed = diff.whats_changed(abc) assert list(changed[0].keys()) == ["ABCMeta"] assert not changed[1] ''' import Queue diff.memorise(Queue, force=True) assert not diff.has_changed(Queue) Queue.Queue.zzz = 1 assert diff.has_changed(Queue) changed = diff.whats_changed(Queue) assert list(changed[0].keys()) == ["Queue"] assert not changed[1] import math diff.memorise(math, force=True) assert not diff.has_changed(math) math.zzz = 1 assert diff.has_changed(math) changed = diff.whats_changed(math) assert list(changed[0].keys()) == ["zzz"] assert not changed[1] ''' 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) del c.a assert diff.has_changed(a) changed = diff.whats_changed(a) assert list(changed[0].keys()) == ["a"] assert not changed[1] if __name__ == '__main__': test_diff()