To test a review submission, can do so by browsing your store URL passing Fera parameters.
Browse Store URL
You just need to browse you store URL appended with 2 parameters, ?fera=review&fera_test=true
For example, this is how it looks to submit a test store review for the below store:
https://fera-bold-demo.myshopify.com/?fera=review&fera_test=true
Enter your store's url with the appended parameters
2. Fill out the review pop-up
a. Hit submit
b. Enter your name and email
3. Head back to your dashboard
Your test review will be under Store Reviews.