diff -u b/core/phpunit.xml.dist b/core/phpunit.xml.dist
--- b/core/phpunit.xml.dist
+++ b/core/phpunit.xml.dist
@@ -10,6 +10,20 @@
          beStrictAboutOutputDuringTests="true"
          beStrictAboutChangesToGlobalState="true"
          printerClass="\Drupal\Tests\Listeners\SimpletestUiPrinter">
+<!--
+ Drupal ships with several PHPUnit output printers.
+ SimpletestUiPrinter (used by default) links to the html results for functional tests.
+ Set printerClass="\Drupal\Tests\Listeners\HtmlOutputPrinter" if you don't need automatic HTML links in output.
+ If you use older PHPStorm versions (prior to 2016.2.2), and use built-in PHPUnit runner,
+ you need to remove printerClass line from this file, because of a bug with custom printerClass
+ breaking the output of PHPStorm's PHPUnit runner.
+ See https://youtrack.jetbrains.com/issue/WI-24808 for details.
+ To use custom printer class only in CLI tests, remove printerClass line from this file,
+ and add these 2 lines to $commands array in simpletest_phpunit_run_command() function:
+   '- -printer',
+   escapeshellarg(SimpletestUiPrinter::class),
+ (note there should be no spaces between the hyphens).
+-->
   <php>
     <!-- Set error reporting to E_ALL. -->
     <ini name="error_reporting" value="32767"/>