The DEMO version only includes 10 pages:
http://portotheme.com
http://portotheme.com/wordpress/porto_landing/demos_overview.html
http://portotheme.com/wordpress/porto_landing/shop_overview.html
http://portotheme.com/wordpress/porto/shop4/shop.html
http://portotheme.com/wordpress/porto/shop4/product-category/accessories.html
http://portotheme.com/wordpress/porto/gutenberg-shop4/product-category/accessories/watches.html
http://portotheme.com/wordpress/porto/shop6/shop.html
http://portotheme.com/wordpress/porto/gutenberg-shop4/product-category/accessories.html
http://portotheme.com/wordpress/porto/gutenberg-shop4/product-category/fashion.html
http://portotheme.com/wordpress/porto/gutenberg-shop4/product-category/accessories/caps.html

It is possible to download these free files and install them on your server, so you can test how the site works.
Visit https://www6.waybackmachinedownloader.com/website-downloader-online/scrape-all-files/ to buy a fully functioning site.
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