Hi digitalfarm,
Actually, the Pre-Sales Forum is only for non-paid users asking questions about our products, so I’ve gone ahead and moved your post to the WooCommerce Tickets forum 🙂
There isn’t a specific test mode for WooCommerce (or at least, I couldn’t find one!) but there are some handy ways to do test orders without needing to pay. Two ways that we use for our QA testing are to set up the Check and Bank Transfer payment gateways. Both of those rely on the customer sending in proof of payment and the admin then marks the payment as Complete, which processes it the rest of the way (a credit card or other immediate payment would skip that step).
For test orders, you (as the customer) can select Check or Bank Transfer as your payment method, and then you (as the admin) can mark that order Complete on the backend. Once the order is marked Complete, the tickets and confirmation will be sent to your user. Do note that local installs do not send the emails, so you’d need to be doing this on a hosted dev site to test that part.
Does that system work for you? You might also get in touch with the folks at WooCommerce to see if they have any suggestions for a test mode. But the above is our workflow for internal testing. Let me know if I can be of any further help!
Best,
Leah