def test_unregistered_hiding(self):
	# Automatic hiding of instances of old-style classes
	hv = self.hv
	
	class Set:
	    pass

	s = Set()
	s._hiding_tag_ = hv._hiding_tag_
	t = Set()
	some = []
	other = []
	s.some = some
	s.other = other
	self.root.append([s, t])
	self.root.append(s)
	self.root.append(t)
	x = hv.heap()
	assert some not in x
	assert other not in x

	assert s not in x
	assert x in t
dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/guppy-0.1.10/guppy/heapy/test/test_heapyc.py/TestHeapView.test_unregistered_hiding/swapped operands of `in`