Ticket #36934: test-excerpt.php

<?php
/*
 * Template name: Excerpt test
 */

if ( have_posts() ) : the_post();

        $latest_posts = get_posts( [ 'posts_per_page' => 1 ] );
        $latest_post = current( $latest_posts );
?>
        <h1><?php echo esc_html( get_the_title( $latest_post ) ); ?></h1>
        <p><?php echo esc_html( get_the_excerpt( $latest_post ) ); ?></p>
<?php

endif;