Prado\Collections\TMap::getReadOnly PHP Method

    public function getReadOnly()
    {
        return $this->_r;
    }

 public function testGetReadOnly()
 {
     $map = new TMap(null, true);
     self::assertEquals(true, $map->getReadOnly(), 'List is not read-only');
     $map = new TList(null, false);
     self::assertEquals(false, $map->getReadOnly(), 'List is read-only');
 }