Function transitionTopology

test/unit/sdam/topology.test.ts:366–377

(topology, from, to)

      });

      function transitionTopology(topology, from, to) {
        topology.emit(
          Topology.TOPOLOGY_DESCRIPTION_CHANGED,
          new TopologyDescriptionChangedEvent(
            2,
            new TopologyDescription(from),
            new TopologyDescription(to)
          )
        );
        // We don't want the SrvPoller to actually run
        clearTimeout(topology.s.srvPoller._timeout);
      }

      describe('srvRecordDiscovery event listener', function () {
        beforeEach(() => {