How do I test the registration form prior to making it active?

Select Products & Forms.

NOTE:  this is also available under the Memberships menu.

My Forms is the list of your Registration Forms.

NOTE: Ensure the form is in draft status. You can check this status under the status column.

Select the Test & Publish tab. 

Right Click on the Form Name under Direct link to form and select Open link in a New Tab.This will open the registration form in the new tab for testing.

NOTE: when you test the form in draft mode, no member data will enter the member's listing.