def test_view(walkable):
'''
Given a walkable location, view that location.
'''
(node, (segments, found)) = walkable
assume(found == found) # Hello, nan! We don't want you here.
view = api.view(node, segments)
assert api.get(view, segments) == api.get(node, segments)
def test_get(node):
'''
Given a node, get should return the exact value given a key for all
key, value pairs in the node.
'''
for k, v in api.walk(node):
assert api.get(node, k) is v
def test_set_walkable(walkable, value):
'''
Given a walkable location, set should be able to update any value.
'''
(node, (segments, found)) = walkable
api.set(node, segments, value)
assert api.get(node, segments) is value
def test_types(node):
'''
Given a node, types should yield a tuple of key, type pairs and the
type indicated should equal the type of the value.
'''
for k, v in api.walk(node):
ts = api.types(node, k)
ta = ()
for tk, tt in ts:
ta += (tk, )
assert type(api.get(node, ta)) is tt
def test_set_create_missing(walkable, kstr, kint, value, extension):
'''
Given a walkable non-leaf, set should be able to create missing
nodes and set a new value.
'''
(node, (segments, found)) = walkable
assume(api.leaf(found))
parent_segments = segments[:-1]
parent = api.get(node, parent_segments)
if isinstance(parent, list):
assume(len(parent) < kint)
destination = parent_segments + (kint, ) + tuple(extension)
elif isinstance(parent, dict):
assume(kstr not in parent)
destination = parent_segments + (kstr, ) + tuple(extension)
else:
raise Exception('mad mad world')
api.set(node, destination, value)
assert api.get(node, destination) is value