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feat(flow): add eq operator to the flow to enable comparison
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hanhxiao committed Oct 14, 2019
1 parent 9ca757b commit f6536c8
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Showing 2 changed files with 26 additions and 1 deletion.
23 changes: 22 additions & 1 deletion gnes/flow/
Original file line number Diff line number Diff line change
Expand Up @@ -589,7 +589,7 @@ def _build_graph(self, copy_flow: bool) -> 'Flow':
raise FlowTopologyError('flow is empty?')

# close the loop
op_flow._service_nodes[op_flow._frontend]['incomes'] = {op_flow._last_changed_service[-1]}

# build all edges
for k, v in op_flow._service_nodes.items():
Expand Down Expand Up @@ -726,3 +726,24 @@ def __getstate__(self):
def __setstate__(self, d):
self.logger = set_logger(self.__class__.__name__)

def __eq__(self, other):
Comparing the topology of a flow with another flow.
Identification is defined by whether two flows share the same set of edges.
:param other: the second flow object

if self._build_level.value < Flow.BuildLevel.GRAPH.value:
a =, copy_flow=True)
a = self

if other._build_level.value < Flow.BuildLevel.GRAPH.value:
b =, copy_flow=True)
b = other

return a._service_edges == b._service_edges
4 changes: 4 additions & 0 deletions tests/
Original file line number Diff line number Diff line change
Expand Up @@ -212,3 +212,7 @@ def test_flow_add_set(self):


self.assertEqual(f1, f2)

self.assertNotEqual(f1, f2.add_router('dummy', yaml_path='BaseRouter'))

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