Small library for showing how much time every test took to run.
$ composer require santik/phpunit-profilerAdd following lines in your phpunit.xml file.
<listeners>
        ...
        <listener class="ProfilingTestListener" file="PATH_TO_DIRECTORY_WITH_LIBRARY/ProfilingTestListener.php">
            <arguments>
                <double>0.015</double><!--seconds-->
                <double>0.001</double><!--seconds-->
            </arguments>
        </listener>
        ....
    </listeners>