flower-shop.js from Performance Testing for DevOps in the Cloud from Codemotion 2019 Amsterdam

flower-shop.js

// System under Test – the target system you'll generate traffic against
definition.setTarget("testapp.loadtest.party");

// your Load Generator Cluster
definition.setTestOptions({
  cluster: { sizing: "preflight", },
});

// user base of 10.000 unique users
// doing a user journey
// in highest hour in a week
var $userBase = 10000;

var $newUserPerSecond = $userBase / 60 / 60;
 
definition.setArrivalPhases([
  // for 5 minutes
  // start RATE new clients/users per second
  { duration: 5 * 60, rate: $newUserPerSecond }, // 100%

  { duration: 5 * 60, rate: $newUserPerSecond * 2 }, // 200%
  { duration: 5 * 60, rate: $newUserPerSecond * 3 }, // 300%
  { duration: 5 * 60, rate: $newUserPerSecond * 4 }, // 200%
]);

// the user Journey
definition.session("flower-shop-user-journey", function(session) {
  session.get("/flowers", {
    tag: "flower-list"
  });

  session.wait(30); // wait for 30 seconds
  
  var flower = session.ds.generate("random_number", { range: [1000, 9999]});
  session.get("/flowers/:flowerId", {
    tag: "flower-detail",
    params: {
      flowerId: flower
    }
  });

  session.wait(30); // wait for 30 seconds

  session.post("/flower-cart/add", {
    tag: "add-flower-to-cart",
    payload: JSON.stringify({
      "item": {
        "qty": session.ds.generate("random_number", { range: [1, 9]}),
        "flower_id": flower
      }
    })
  });
});