def test_Partition_can_update_stats():
graph = networkx.complete_graph(3)
assignment = {0: 1, 1: 1, 2: 2}
graph.nodes[0]['stat'] = 1
graph.nodes[1]['stat'] = 2
graph.nodes[2]['stat'] = 3
partition = Partition(graph, assignment, aggregate_fields=['stat'])
assert partition.statistics['stat'][2] == 3
flip = {1: 2}
new_partition = partition.merge(flip)
assert new_partition.statistics['stat'][2] == 5
def test_Partition_can_update_stats():
graph = networkx.complete_graph(3)
assignment = {0: 1, 1: 1, 2: 2}
graph.nodes[0]['stat'] = 1
graph.nodes[1]['stat'] = 2
graph.nodes[2]['stat'] = 3
updaters = {'total_stat': Tally('stat', alias='total_stat')}
partition = Partition(graph, assignment, updaters)
assert partition['total_stat'][2] == 3
flip = {1: 2}
new_partition = partition.merge(flip)
assert new_partition['total_stat'][2] == 5
