Assertion in parameter

Gatling (Open-Source)
1

Hi,

I read link below, but I cannot find answer

It is possible to pass assertion in parameter? I using maven and command similar to
mvn gatling:test -Dusers=500 -Dramp=3600 but need something more to correct configure in Jenkins.

Thx for help

2

What you have on mind writing

Please provide more details.

3

I need something like this:

mvn gatling:test -Dusers=500 -Dramp=3600 -Dassertion=2500

My code below:

  {
    setUp(
        getAllAnalysis
            .injectClosed(
                constantConcurrentUsers(users).during(executionTime))
            .protocols(httpProtocol),
        getAllTemplates
            .injectClosed(
                constantConcurrentUsers(users).during(executionTime))
            .protocols(httpProtocol)
    )
        .maxDuration(ofSeconds(executionTime))
        .assertions(
            global()
                .successfulRequests()
                .percent()
                .is(100.0)
        )
        .assertions(
            details("getOne")
                .responseTime()
                .percentile3()
                .lt(2500),
            details("getTwo")
                .responseTime()
                .percentile3()
                .lt(2500));
  }
4

Change values for variables and should work as you need.

Example code in Java below:

package pl.gemiusz;

import io.gatling.javaapi.core.ScenarioBuilder;
import io.gatling.javaapi.core.Simulation;
import io.gatling.javaapi.http.HttpProtocolBuilder;

import static io.gatling.javaapi.core.CoreDsl.*;
import static io.gatling.javaapi.http.HttpDsl.http;

/**
 * HOW TO RUN:
 * mvnw gatling:test -Dgatling.simulationClass=pl.gemiusz.Case0006CommandLineParametersSimulation -Dfoo=10 -Dbar=GeMi -Dpercentile3responseTime=15
 */
public class Case0006CommandLineParametersSimulation extends Simulation {

    int foo = Integer.getInteger("foo", 1);
    String bar = System.getProperty("bar");
    int percentile3responseTime = Integer.getInteger("percentile3responseTime", 10);

    HttpProtocolBuilder httpProtocol =
            http
                    .baseUrl("https://postman-echo.com");

    ScenarioBuilder scn =
            scenario("GeMi_CommandLineParametersSimulation")
                    .exec(
                            http("GeMi_CommandLineParametersSimulation_get_1")
                                    .get("/get?foo=" + foo + "&bar=" + bar)
                                    .check(jmesPath("args.foo").is(String.valueOf(foo)))
                                    .check(jmesPath("args.bar").is(String.valueOf(bar)))
                    ).exec(
                            http("GeMi_CommandLineParametersSimulation_get_2")
                                    .get("/get?foo=" + foo + "&bar=" + bar)
                                    .check(jmesPath("args.foo").is(String.valueOf(foo)))
                                    .check(jmesPath("args.bar").is(String.valueOf(bar)))
                    );

    {
        setUp(scn.injectOpen(atOnceUsers(1)).protocols(httpProtocol)).assertions(
                        global()
                                .successfulRequests()
                                .percent()
                                .is(100.0)
                )
                .assertions(
                        details("GeMi_CommandLineParametersSimulation_get_1")
                                .responseTime()
                                .percentile3()
                                .lt(percentile3responseTime),
                        details("GeMi_CommandLineParametersSimulation_get_2")
                                .responseTime()
                                .percentile3()
                                .lt(percentile3responseTime));

    }
}

For:

mvnw gatling:test -Dgatling.simulationClass=pl.gemiusz.Case0006CommandLineParametersSimulation -Dfoo=10 -Dbar=GeMi -Dpercentile3responseTime=15

get:

GeMi_CommandLineParametersSimulation_get_1: 95th percentile of response time is less than 15.0 : false (actual : 882.0)
GeMi_CommandLineParametersSimulation_get_2: 95th percentile of response time is less than 15.0 : false (actual : 287.0)

For:

mvnw gatling:test -Dgatling.simulationClass=pl.gemiusz.Case0006CommandLineParametersSimulation -Dfoo=10 -Dbar=GeMi -Dpercentile3responseTime=1500

get:

GeMi_CommandLineParametersSimulation_get_1: 95th percentile of response time is less than 1500.0 : true
GeMi_CommandLineParametersSimulation_get_2: 95th percentile of response time is less than 1500.0 : true

For (missing percentile3responseTime):

mvnw gatling:test -Dgatling.simulationClass=pl.gemiusz.Case0006CommandLineParametersSimulation -Dfoo=10 -Dbar=GeMi

get:

GeMi_CommandLineParametersSimulation_get_1: 95th percentile of response time is less than 10.0 : false (actual : 830.0)
GeMi_CommandLineParametersSimulation_get_2: 95th percentile of response time is less than 10.0 : false (actual : 217.0)

I have updated Case0006CommandLineParametersSimulation in my repo → https://github.com/gemiusz/gatling-examples-maven-java to cover this case.
Feel free to check and use :slight_smile:

2 Likes
5

Thank you very much :slight_smile:

Maybe Gatling docs should be update?

6

Hi @lechf1,

We documented that we can pass parameters from Java System properties.
But after that, it is up to the user to use it anywhere a constant can be given.
We provided only a sample for some injection parameters, but we cannot humanly be exhaustive for all possible way to use such parameters.

2 Likes