Turn off email sends from Devise in test (Rspec)
wish helps you When delivery_method is set to test, everything is still run
the same, with the only difference being the message is not sent to SMTP.
So, in your case Redis is still required for test emails, as Resque is
still going to process them,
Date : November 22 2020, 02:59 PM , By : Santhosh Damodaran