def test_namemap(self):
k = ITEMS.keys()[0]
nonames = BaseCollection(ITEMS)
assert nonames.name_for(k) is None
assert nonames.byname() is None
withnames = BaseCollection(ITEMS, NAMES)
assert withnames.name_for(k) == withnames[k].getId()
assert withnames.uid_for(withnames[k].getId()) == k
assert withnames.all_names(k) == (withnames[k].getId(),)
self.assertIsInstance(withnames.byname(), BaseNamedCollection)
self.assertIsInstance(withnames._name_to_uid, dict)
self.assertIsInstance(withnames._uid_to_names, dict)
def test_set_union(self):
collection1 = BaseCollection(ITEMS, NAMES)
collection2 = BaseCollection(ITEMS2)
collection3 = collection1.union(collection2)
self.assertIsInstance(collection3, BaseCollection)
assert len(collection3) == len(collection2) == 3
assert len(collection3) - 1 == len(collection1)
for k in collection1:
assert k in collection3
assert collection3.name_for(k) is None # c2 had no names
for k in collection2:
assert k in collection3
assert collection3.name_for(k) is None
# de-dupe means not strictly concatentation (length):
assert len(collection1) + len(collection2) > len(collection3)
# operator and union() equivalent:
self.assertEqual(
set((collection1 | collection2).keys()),
set(collection1.union(collection2).keys())
)
self.assertEqual(
set((collection1 + collection2).keys()),
set(collection1.union(collection2).keys())
)
# now test with a namemap:
namemap = NAMES.copy()
uid = str(uuid.uuid3(NS_PKG, 'item3'))
namemap['item3'] = uid
collection4 = BaseCollection(ITEMS2, namemap)
collection5 = collection1.union(collection4)
assert collection5.uid_for('item3') == uid
assert collection4.name_for(uid) == 'item3'