def test_lwwset():
A = LWWSet()
fake_time = 1
def mock_time():
return fake_time
old_time = sets.time
sets.time = mock_time
A.add("eric")
B = A.clone()
C = A.clone()
# Test that concurrent updates favor add
fake_time = 2
B.add("eric")
C.remove("eric")
D = LWWSet.merge(B, C)
assert D.value == set(["eric"])
sets.time = old_time
def __init__(self):
# The user key is considered constant among replicas
# so no CRDT is needed
self.user_key = None
self.following = LWWSet()
self.followers = LWWSet()
