How to run a single RSpec test?

Question

I have the following file:

/spec/controllers/groups_controller_spec.rb

What command in terminal do I use to run just that spec and in what

Answer 1

Usually I do:

rspec ./spec/controllers/groups_controller_spec.rb:42

Where 42 represents the line of the test I want to run.

EDIT1:

You could also use tags. See here.

EDIT 2:

Try:

bundle exec rspec ./spec/controllers/groups_controller_spec.rb:42