Is there a possible way to run two .xml files in testng.xml parallel?

Question

I currently have two different TestSuites (SUITE1.XML and SUITE2.xml) with different configurations (e.g browsers, Os)...

I call both SUITES inside testng.xml to run

Answer 1

Another option is to use a suite-of-suites. I'll preface this by saying it's been a while since I've worked with this setup, but hopefully you'll find enough detail here to at least get started.

First, you'd define two (or more) suite XML files:

and...

Then, you'd define a suite-of-suites XML file:

Do note, that the suite-file path value is the relative path from the current suite-of-suites XML file to the XML file you're calling. If they're in the same directory, simply the file name will suffice.

Additionally, both XML types do support the tag. The standard suite XML will read both at and in the levels, and I've found that tags at the level on the suite-of-suites XML file will work as well.

Finally, on execution, you'd need only pass in the suite-of-suites XML file as your suite file argument.

EDIT: Here's how I was able to make my two suites run in parallel. The trick was setting up my main() method properly.

public class TestRunner
{
    public static void main(String[] args)
    {
        TestNG testng = new TestNG();
        TestListenerAdapter adapter = new TestListenerAdapter();
        List suites = new ArrayList();

        testng.addListener(adapter);
        suites.add(args[0]);
        testng.setTestSuites(suites);
        testng.setParallel("parallel");
        testng.setSuiteThreadPoolSize(5);
        testng.setOutputDirectory("path to output");
        testng.run();
    }
}

Then, on the command line:

java -jar ParallelSuiteDemo.jar SuiteOfSuites.xml

Note, my jar and all xml files were in the same directory with this configuration. The command line args and entries would need to be configured properly if you wish you use a directory structure.

This yielded my two suite.xml files running in parallel on a Selenium Grid.

There may be better ways of doing this, to be honest. This is just what worked for me when I was trying to do something similar.