def test_dict_construction_options():
backend = BackendSQLite()
d1 = yaupon.ydict(backend, one=2, two=3)
d2 = yaupon.ydict(backend, {'one':2, 'two':3})
d3 = yaupon.ydict(backend, zip(('one', 'two'), (2,3)))
d4 = yaupon.ydict(backend, [['two', 3], ['one', 2]])
expected_items = sorted([('one',2), ('two',3)])
assert sorted([x for x in d1.iteritems()]) == expected_items
assert sorted([x for x in d2.iteritems()]) == expected_items
assert sorted([x for x in d3.iteritems()]) == expected_items
assert sorted([x for x in d4.iteritems()]) == expected_items
def __init__(self, backend=None, items=None, keys=None, cmp=cmp):
self.nodes = ydict(backend=backend)
# 'nodes' maps item -> [child, sibling, parent, key]
self.cmp = cmp
self.head = None
if items is not None:
for item in items:
self.insert(item)
if keys is not None:
for item, key in keys.iteritems():
self.insert(item, key)
