JSON file for testing with 2 groups

cy.json

{
  "nodes": [
    {
      "data": {
        "id": "n3",
        "text": "details (v1)",
        "service": "details.istio-system.svc.cluster.local",
        "version": "v1",
        "link_prom_graph":
          "http://prometheus:9090/graph?g0.range_input=1h\u0026g0.tab=0\u0026g0.expr=istio_request_count%7Bdestination_service%3D%22details.istio-system.svc.cluster.local%22%2Cdestination_version%3D%22v1%22%7D"
      }
    },
    {
      "data": {
        "id": "n1",
        "text": "istio-ingress",
        "service": "istio-ingress.istio-system.svc.cluster.local",
        "version": "unknown",
        "link_prom_graph":
          "http://prometheus:9090/graph?g0.range_input=1h\u0026g0.tab=0\u0026g0.expr=istio_request_count%7Bsource_service%3D%22istio-ingress.istio-system.svc.cluster.local%22%2Csource_version%3D%22unknown%22%7D"
      }
    },
    {
      "data": {
        "id": "n2",
        "text": "productpage (v1)",
        "service": "productpage.istio-system.svc.cluster.local",
        "version": "v1",
        "parent": "rr3",
        "link_prom_graph":
          "http://prometheus:9090/graph?g0.range_input=1h\u0026g0.tab=0\u0026g0.expr=istio_request_count%7Bdestination_service%3D%22productpage.istio-system.svc.cluster.local%22%2Cdestination_version%3D%22v1%22%7D"
      }
    },
    {
      "data": {
        "id": "n22",
        "text": "productpage (v2)",
        "service": "productpage.istio-system.svc.cluster.local",
        "version": "v1",
        "parent": "rr3",
        "link_prom_graph":
        "http://prometheus:9090/graph?g0.range_input=1h\u0026g0.tab=0\u0026g0.expr=istio_request_count%7Bdestination_service%3D%22productpage.istio-system.svc.cluster.local%22%2Cdestination_version%3D%22v1%22%7D"
      }
    },
    {
      "data": {
        "id": "n6",
        "text": "ratings (v1)",
        "service": "ratings.istio-system.svc.cluster.local",
        "version": "v1",
        "link_prom_graph":
          "http://prometheus:9090/graph?g0.range_input=1h\u0026g0.tab=0\u0026g0.expr=istio_request_count%7Bdestination_service%3D%22ratings.istio-system.svc.cluster.local%22%2Cdestination_version%3D%22v1%22%7D"
      }
    },
    {
      "data": {
        "id": "n4",
        "text": "reviews (v1)",
        "service": "reviews.istio-system.svc.cluster.local",
        "version": "v1",
        "parent": "r1",
        "link_prom_graph":
          "http://prometheus:9090/graph?g0.range_input=1h\u0026g0.tab=0\u0026g0.expr=istio_request_count%7Bdestination_service%3D%22reviews.istio-system.svc.cluster.local%22%2Cdestination_version%3D%22v1%22%7D"
      }
    },
    {
      "data": {
        "id": "n5",
        "text": "reviews (v2)",
        "service": "reviews.istio-system.svc.cluster.local",
        "version": "v2",
        "parent": "r1",
        "link_prom_graph":
          "http://prometheus:9090/graph?g0.range_input=1h\u0026g0.tab=0\u0026g0.expr=istio_request_count%7Bdestination_service%3D%22reviews.istio-system.svc.cluster.local%22%2Cdestination_version%3D%22v2%22%7D"
      }
    },
    {
      "data": {
        "id": "n7",
        "text": "reviews (v3)",
        "service": "reviews.istio-system.svc.cluster.local",
        "version": "v3",
        "parent": "r1",
        "link_prom_graph":
          "http://prometheus:9090/graph?g0.range_input=1h\u0026g0.tab=0\u0026g0.expr=istio_request_count%7Bdestination_service%3D%22reviews.istio-system.svc.cluster.local%22%2Cdestination_version%3D%22v3%22%7D"
      }
    },
    {
      "data": {
        "id": "r1",
        "service": "reviews.istio-system.svc.cluster.local",
        "text": "reviews"
      }
    },
    {
      "data": {
        "id": "rr3",
        "service": "reviews.istio-system.svc.cluster.local",
        "text": "productpages"
      }
    },
    {
      "data": {
        "id": "n0",
        "text": "unknown",
        "service": "unknown",
        "version": "unknown",
        "link_prom_graph":
          "http://prometheus:9090/graph?g0.range_input=1h\u0026g0.tab=0\u0026g0.expr=istio_request_count%7Bsource_service%3D%22unknown%22%2Csource_version%3D%22unknown%22%7D"
      }
    }
  ],
  "edges": [
    {
      "data": {
        "id": "e0",
        "source": "n0",
        "target": "n1",
        "text": "0ps",
        "color": "black"
      }
    },
    {
      "data": {
        "id": "e8",
        "source": "n0",
        "target": "n2",
        "text": "0.44ps",
        "color": "green"
      }
    },
    {
      "data": {
        "id": "e1",
        "source": "n1",
        "target": "n2",
        "text": "0ps",
        "color": "black"
      }
    },
    {
      "data": {
        "id": "e2",
        "source": "n2",
        "target": "n3",
        "text": "0.44ps",
        "color": "green"
      }
    },
    {
      "data": {
        "id": "e3",
        "source": "n2",
        "target": "n4",
        "text": "0.16ps",
        "color": "green"
      }
    },
    {
      "data": {
        "id": "e4",
        "source": "n2",
        "target": "n5",
        "text": "0.12ps",
        "color": "green"
      }
    },
    {
      "data": {
        "id": "e6",
        "source": "n2",
        "target": "n7",
        "text": "0.16ps",
        "color": "green"
      }
    },
    {
      "data": {
        "id": "e5",
        "source": "n5",
        "target": "n6",
        "text": "0.12ps",
        "color": "green"
      }
    },
    {
      "data": {
        "id": "e7",
        "source": "n7",
        "target": "n6",
        "text": "0.16ps",
        "color": "green"
      }
    }
  ]
}