def test_gset():
"""
{},{}
/ \
A{eric},{} B{glenn},{} +eric +glenn
| |
A{eric mark},{} | +mark
| / \
| / \
\ / \
\ / B2{glenn tom} +tom
\ / \
AB{eric mark glenn} \ <<merge>>
\ /
\ /
ABB2{eric mark tom glenn} <<merge>>
"""
A = GSet()
B = GSet()
A.add("eric")
A.add("mark")
B.add("glenn")
B2 = B.clone()
AB = GSet.merge(A, B)
B2.add("tom")
ABB2 = GSet.merge(AB, B2)
assert ABB2.value == {"eric", "mark", "tom", "glenn"}, ABB2.value
def __init__(self):
self.A = GSet()
self.R = GSet()
def merge(cls, X, Y):
merged = GSet()
merged._payload = X._payload.union(Y._payload)
return merged
