Using ‘get_template_directory_uri’ correctly

get_template_directory_uri(), as the name suggests, gets the URI of the theme. You want the filesystem path, which is get_template_directory():

<?php require get_template_directory() . '/woocommerce/single-product/test.php' ?>

Better yet, use the WordPress template loading system:

<?php locate_template( 'woocommerce/single-product/test.php', true /* Locate AND load the file */ ) ?>

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)