Just ONE ammonite script file to execute a load performance test using gatling ! / published by https://github.com/dacr/code-examples-manager #ea7a4259-9461-44a8-99fa-1ec6ec3c48ed/443c1c94e20bb3b5a5b8a685bf191fd3cce8b16b

gatling-simple.sc

// summary : Just ONE ammonite script file to execute a load performance test using gatling !
// keywords : scala, gatling, ammonite, scala, load-test, performance
// publish : gist
// authors : David Crosson
// license : Apache NON-AI License Version 2.0 (https://raw.githubusercontent.com/non-ai-licenses/non-ai-licenses/main/NON-AI-APACHE2)
// id : ea7a4259-9461-44a8-99fa-1ec6ec3c48ed
// created-on : 2018-09-22T07:41:07Z
// managed-by : https://github.com/dacr/code-examples-manager
// run-with : scala-cli $file

//> using scala 2.13
//> using dep io.gatling:gatling-http:3.10.5
//> using dep io.gatling:gatling-app:3.10.5
//> using dep io.gatling:gatling-core:3.10.5
//> using dep io.gatling.highcharts:gatling-charts-highcharts:3.10.5
//> using dep ch.qos.logback:logback-classic:1.5.18

/*
This example can be run locally :
```
docker run -p 8099:80 kennethreitz/httpbin
export HTTPBIN_BASE_URL=http://localhost:8099/
scala-cli gatling-simple.sc
```
 */

import io.gatling.app.Gatling
import io.gatling.core.config.GatlingPropertiesBuilder
import io.gatling.core.Predef._
import io.gatling.http.Predef._
import scala.concurrent.duration._
import org.slf4j.{LoggerFactory, Logger}

val rootLogger = LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME).asInstanceOf[ch.qos.logback.classic.Logger]
rootLogger.setLevel(ch.qos.logback.classic.Level.ERROR)

class GatlingSimple extends Simulation {

  val httpbinBaseURL = scala.util.Properties.envOrElse("HTTPBIN_BASE_URL", "https://httpbin.org")

  def config = {
    http
      .baseUrl(httpbinBaseURL)
      .userAgentHeader("curl/7.58.0")
      .disableFollowRedirect
  }

  def assertions = List(
    global.responseTime.mean.lt(90),
    global.successfulRequests.percent.gt(90)
  )

  def scn =
    scenario("Simple load").during(30.seconds) {
      exec(
        http("get200")
          .get("/")
          .check(status.is(200))
      )
        .pause(1000.milliseconds, 2000.milliseconds)
        .exec(
          http("get401")
            .get("/status/401")
            .check(status.is(401))
        )
        .pause(2000.milliseconds, 4000.milliseconds)
    }

  setUp(scn.inject(rampUsers(10).during(10.seconds)))
    .protocols(config)
    .assertions(assertions)

}

val props =
  new GatlingPropertiesBuilder()
    .simulationClass(classOf[GatlingSimple].getName)
    .resultsDirectory("/tmp")
    // .noReports()
    .build

Gatling.fromMap(props)