def test_union_with_iterable(self):
oset1 = OrderedSet([1])
self.assertEqual(oset1.union([2, 1]), OrderedSet([1, 2]))
self.assertEqual(
OrderedSet([1, 2]) | OrderedSet([3, 1, 2, 4]),
OrderedSet([1, 2, 3, 4]))
# union with unordered set should work,
# though the order will be arbitrary
self.assertEqual(oset1.union(set([2])), OrderedSet([1, 2]))
def test_union_and_update(self):
oset = OrderedSet(self.lst)
lst = self.lst
oset2 = oset.union([3, 9, 27])
self.assertEqual(oset2, OrderedSet(lst + [27]))
# make sure original oset isn't changed
self.assertEqual(oset, OrderedSet(lst))
oset1 = OrderedSet(self.lst)
oset2 = OrderedSet(self.lst)
oset3 = oset1 | oset2
self.assertEqual(oset3, oset1)
self.assertEqual(oset3, oset1.union(oset2))
oset1 |= OrderedSet("abc")
self.assertEqual(oset1, oset2.union("abc"))
oset1 = OrderedSet(self.lst)
oset1.update("abc")
self.assertEqual(oset1, oset2.union("abc"))