/**
  * @covers jarekkozak\helpers\FlashHelper::setFlashWarning
  */
 public function testSetFlashWarning()
 {
     $message = 'Success Message';
     self::assertFalse(FlashHelper::hasFlashWarning());
     FlashHelper::setFlashWarning($message);
     self::assertTrue(FlashHelper::hasFlashWarning());
 }