public function testHandlerThrowsExceptionWillAbortStackAndRethrow()
 {
     $exHandler1 = new GenericHandler([Exception::CLASS], function ($ex) {
         throw $ex;
     });
     $called = false;
     $exHandler2 = new GenericHandler([Exception::CLASS], function ($ex) use(&$called) {
         $called = true;
         return false;
     });
     $handler = new ErrorHandler();
     $handler->addHandlers([$exHandler1, $exHandler2]);
     $exception = new Exception();
     try {
         $handler->handleException($exception);
     } catch (Exception $ex) {
         $rethrown = $ex;
     }
     $this->assertSame($ex, $rethrown);
     $this->assertSame(false, $called);
 }