if tt.node.Metadata != nil {
				proxy.Metadata = tt.node.Metadata
			} else {
				proxy.Metadata = &proxyGatewayMetadata
			}

			builder := cg.ConfigGen.buildGatewayListeners(NewListenerBuilder(proxy, cg.PushContext()))
			listeners := xdstest.ExtractListenerNames(builder.gatewayListeners)
			sort.Strings(listeners)
			sort.Strings(tt.expectedListeners)