--TEST--
isVisible: returns true when metadata is null or date fields absent
--FILE--
<?php
require '/var/www/app/hooks.php';
require '/var/www/app/context.php';
require '/var/www/app/helpers.php';

// Null metadata = always visible
echo isVisible(null) ? "true\n" : "false\n";

// Empty array = always visible
echo isVisible([]) ? "true\n" : "false\n";

// Metadata without date fields = always visible
echo isVisible(['title' => 'Hello']) ? "true\n" : "false\n";
?>
--EXPECT--
true
true
true