instances := []gatewayWithInstances{}
			for _, c := range tt.gwConfig {
				instances = append(instances, gatewayWithInstances{c, true, nil})
			}
			mgw := MergeGateways(instances, &Proxy{}, nil)
			if len(mgw.MergedServers) != tt.mergedServersNum {
				t.Errorf("Incorrect number of merged servers. Expected: %v Got: %d", tt.mergedServersNum, len(mgw.MergedServers))
			}