Is there a way to run tests in parallel with filters?

@mabdullahsari In the single test class I have several tests which take a long time to run. Is it possible to run them in parallel?

Or I suppose I would have to split up my test class?

But even in that case, is it possible to run only a handful of test classes in parallel by filtering, say a folder of classes, rather than the entire test suite?

@CLab The test cases within a file belong to a single test. You can only run the tests in parallel, not the individual cases. Since you are talking about one test, there is no point in parallelizing that.

You need to create separate tests. You should be able to run a specific test namespace is parallel, yeah.

@mabdullahsari Hi- so my test cases are now in separate classes/files. How can I run a specific test namespace in parallel as you mentioned? What command do I use?

@CLab Create a test suite for these tests inside of phpunit.xml and run them as

php artisan test --testsuite=MyTestSuite --parallel

@mabdullahsari So I created a test suite by adding the following lines to my phpunit.xml file:

    <testsuites>
        <testsuite name="Unit">
            <directory suffix="Test.php">./tests/Unit</directory>
        </testsuite>
        <testsuite name="Feature">
            <directory suffix="Test.php">./tests/Feature</directory>
        </testsuite>
        <testsuite name="MyTestSuite">
            <directory suffix="Test.php">./tests/Feature/MyTestSuite/</directory>
        </testsuite>
    </testsuites>

I tried running php artisan test --testsuite=MyTestSuite --parallel and it gives an error:

Unknown option "--parallel"

@CLab What version of Laravel are you using?

@mabdullahsari latest ^8.0 - ran composer update too.

@CLab You need to have --parallel first

php artisan test --parallel --testsuite=MyTestSuite

@Sinnbeck It works! So sorry, I should've tried that.

@CLab no worries. The parallel flag is a laravel one while testsuite is phpunit. So laravels comes first

If the issue was solved, you can mark a best answer to set the thread as solved

@CLab You should have starred @sinnbeck, man. I didn't have time to check the replies, and he helped you eventually.

@mabdullahsari all good. I think you helped more than me :)

@mabdullahsari I wish that there was a way to mark two best answers, as without your conversation we wouldn't have come to the point. But yes I will change Best answer to @sinnbeck as his works. Thank you both for taking time from your day to help a novice out.

@martinbean Thanks Martin. Yes I understand. I will inspect them and fix them too. Splitting it up actually increased the speed 4 fold as the setup was very heavy when everything was in one. By splitting it up the setup could be optimized for each class which made it faster.