Akka.Cluster.Tests.MetricsGossipSpec.MetricsGossip_must_merge_peer_metrics C# (CSharp) Method

        public void MetricsGossip_must_merge_peer_metrics()
        {
            var m1 = new NodeMetrics(new Address("akka.tcp", "sys", "a", 2554), StandardMetrics.NewTimestamp(),
                _collector.Sample().Metrics);
            var m2 = new NodeMetrics(new Address("akka.tcp", "sys", "a", 2555), StandardMetrics.NewTimestamp(),
                _collector.Sample().Metrics);

            var g1 = MetricsGossip.Empty + m1 + m2;
            g1.Nodes.Count.ShouldBe(2);
            var beforeMergeNodes = g1.Nodes;

            var m2Updated = m2.Copy(metrics: _collector.Sample().Metrics, timestamp: m2.Timestamp + 1000);
            var g2 = g1 + m2Updated; //merge peers
            g2.Nodes.Count.ShouldBe(2);
            g2.NodeMetricsFor(m1.Address).Metrics.ShouldBe(m1.Metrics);
            g2.NodeMetricsFor(m2.Address).Metrics.ShouldBe(m2.Metrics);
            foreach (var peer in g2.Nodes)
            {
                if(peer.Address == m2.Address)
                    peer.Timestamp.ShouldBe(m2Updated.Timestamp);
            }
        }