Launch jmeter from junit test

Question

Is there any way to integrate a recorded jmeter script( which tests the load exerted by a recorded series of actions executed by multiple users) in a selenium/junit test case). such that i just execute that selenium/junit test case with java, and it gives me the performance results of the junit report? I have found posts telling how to integrate selenium webdriver into jmeter, but not the other way around.

Answer 1

You can execute existing JMeter test using JMeter Java API , example code would look like:

import org.apache.jmeter.engine.StandardJMeterEngine;
import org.apache.jmeter.reporters.ResultCollector;
import org.apache.jmeter.reporters.Summariser;
import org.apache.jmeter.save.SaveService;
import org.apache.jmeter.util.JMeterUtils;
import org.apache.jorphan.collections.HashTree;

import java.io.File;

public class JMeterFromCode {

    public static void main(String[] args) throws Exception {

        // JMeter Engine
        StandardJMeterEngine jmeter = new StandardJMeterEngine();

        // Initialize Properties, logging, locale, etc.
        JMeterUtils.loadJMeterProperties("/tmp/jmeter/bin/jmeter.properties");
        JMeterUtils.setJMeterHome("/tmp/jmeter");
        JMeterUtils.initLogging();// you can comment this line out to see extra log messages of i.e. DEBUG level
        JMeterUtils.initLocale();

        // Initialize JMeter SaveService
        SaveService.loadProperties();

        // Load Test Plan
        HashTree testPlanTree = SaveService.loadTree(new File("/tmp/jmeter/bin/test.jmx"));

        Summariser summer = null;
        String summariserName = JMeterUtils.getPropDefault("summariser.name", "summary");
        if (summariserName.length() > 0) {
            summer = new Summariser(summariserName);
        }


        // Store execution results into a .jtl file
        String logFile = "/tmp/jmeter/bin/test.jtl";
        ResultCollector logger = new ResultCollector(summer);
        logger.setFilename(logFile);
        testPlanTree.add(testPlanTree.getArray()[0], logger);

        // Run JMeter Test
        jmeter.configure(testPlanTree);
        jmeter.run();
    }
}

Replace:

• all occurrences of /tmp/jmeter - with path to your JMeter installation
• /tmp/jmeter/bin/test.jmx - with path to the .jmx file, containing the recorded JMeter script
• /tmp/jmeter/bin/test.jtl - with the desired location of the .jtl results file

See Five Ways To Launch a JMeter Test without Using the JMeter GUI article for more information on the possibilities of executing a JMeter test, maybe you will find an easier integration solution as JMeter tests can be executed via Maven plugin or Ant Task along with Selenium tests.