namespace NameSpace1TestBlock;

class Test extends MagentoFrameworkViewElementTemplate {
    public function getTest(){
        return "Same Result";
    }
}

<h3>Class: <?php echo get_class($block) ?> Result: (<?php echo $block->getTest() ?>)</h3>
<h3>Class: <?php echo get_class($this) ?> Result: (<?php echo $this->getTest() ?>)</h3>