proxy := fuzz.Struct[*model.Proxy](fg)
		mesh := fuzz.Struct[*meshconfig.MeshConfig](fg)
		c := fuzz.Struct[*cluster.Cluster](fg)

		serviceDiscovery := memory.NewServiceDiscovery()
		env := newTestEnvironment(serviceDiscovery, mesh, buildEnvoyFilterConfigStore(patches))
		push := model.NewPushContext()
		push.InitContext(env, nil, nil)
		efw := push.EnvoyFilters(proxy)

		{
			name:                "only add extension config",
			requestedNames:      []string{"merge-extension-config"},
			wantExtensionConfig: []*core.TypedExtensionConfig{},
		},
	}

	serviceDiscovery := memory.NewServiceDiscovery()
	env := newTestEnvironment(serviceDiscovery, testMesh, buildEnvoyFilterConfigStore(configPatches))
	push := model.NewPushContext()
	push.InitContext(env, nil, nil)

	for _, c := range testCases {