Performance Test Automation 101: Gatling, Lighthouse, & Jenkins/

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User Injection Profiles

User Injection Profiles

Get familiarized with user injection profiles.

We'll cover the following...

In the previous lesson, we learned about the different ways to pass test data to the Gatling test script using Feeders. In this lesson, we will learn about the different ways to inject users into the simulation.

Gatling provides various ways to inject users and stimulate the load on the environment.

atOnceUsers

Injects a specific number of users at the same time.

Example:

scn.inject(atOnceUsers(10))
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import io.gatling.core.Predef._

import io.gatling.http.Predef._



class SampleSimulation extends Simulation {



  val httpProtocol = http

    .baseUrl("http://localhost:8080/api/users")

    .acceptHeader("*/*")

    .doNotTrackHeader("1")

    .userAgentHeader(

      "Mozilla/5.0 (Windows NT 5.1; rv:31.0) Gecko/20100101 Firefox/31.0"

    )

    .disableWarmUp

    .disableCaching



    val getScenario = scenario("BasicSimulation - GET")

        .exec(

            http("GET request")

                .get("/")

                .check(status.is(200))

        )



    setUp(getScenario.inject(atOnceUsers(10))).protocols(httpProtocol)



}

constantUsersPerSec

Injects the number of users each second for the given duration.

Example:

scn.inject(constantUsersPerSe
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