def merge(cls, X, Y):
assert X.user_key == Y.user_key, "User keys do not match"
assert X.user_key is not None, "user_key must be set"
following = LWWSet.merge(X.following, Y.following)
followers = LWWSet.merge(X.following, Y.following)
new = cls()
new.user_key = X.user_key
new.following = following
new.followers = followers
return new
def merge(cls, X, Y):
assert X.user_key == Y.user_key, "User keys do not match"
assert X.user_key is not None, "user_key must be set"
following = LWWSet.merge(X.following, Y.following)
followers = LWWSet.merge(X.following, Y.following)
new = cls()
new.user_key = X.user_key
new.following = following
new.followers = followers
return new
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 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
