ExecutionStartedSubscriber

class \PHPUnit\Runner\GarbageCollection\ExecutionStartedSubscriber extends \PHPUnit\Runner\GarbageCollection\Subscriber implements \PHPUnit\Event\TestRunner\ExecutionStartedSubscriber
class \PHPUnit\TestRunner\TestResult\ExecutionStartedSubscriber extends \PHPUnit\TestRunner\TestResult\Subscriber implements \PHPUnit\Event\TestRunner\ExecutionStartedSubscriber
class \PHPUnit\TextUI\Output\Default\ProgressPrinter\TestRunnerExecutionStartedSubscriber extends \PHPUnit\TextUI\Output\Default\ProgressPrinter\Subscriber implements \PHPUnit\Event\TestRunner\ExecutionStartedSubscriber