def test_adding_to_an_empty_tree():
tree = Tree()
p = Path(tree)
p.hello = sentinel.hello
p.animals.badger = sentinel.badger
p.animals.weasel = sentinel.weasel
p.animals.stoat = sentinel.stoat
assert sorted(walk(tree)) == sorted([(('hello',), sentinel.hello),
(('animals', 'badger'), sentinel.badger),
(('animals', 'weasel'), sentinel.weasel),
(('animals', 'stoat'), sentinel.stoat), ])
def test_adding_to_an_existing_tree(example_tree):
pre_exisiting = list(walk(example_tree))
p = Path(example_tree)
p.hello = sentinel.hello
p.animals.badger = sentinel.badger
p.animals.weasel = sentinel.weasel
p.animals.stoat = sentinel.stoat
assert sorted(walk(example_tree)) == sorted(pre_exisiting
+ [(('hello',), sentinel.hello),
(('animals', 'badger'), sentinel.badger),
(('animals', 'weasel'), sentinel.weasel),
(('animals', 'stoat'), sentinel.stoat), ])
