Add gem "rubocop-rspec"

.rubocop.yml

@@ -1,6 +1,7 @@
 require:
   - rubocop-performance
   - rubocop-rails
+  - rubocop-rspec
 
 AllCops:
   TargetRubyVersion: 2.6

Gemfile

@@ -135,6 +135,10 @@ group :development, :test do
   # focused on enforcing Rails best practices and coding conventions.
   gem 'rubocop-rails', '~> 2.2'
 
+  # Code style checking for RSpec files.
+  # A plugin for the RuboCop code style enforcing & linting tool.
+  gem 'rubocop-rspec', '~> 1.36'
+
   # rspec-rails is a testing framework for Rails 3+
   gem 'rspec-rails', '~> 3.8'
 

Gemfile.lock

@@ -373,6 +373,8 @@ GEM
     rubocop-rails (2.3.2)
       rack (>= 1.1)
       rubocop (>= 0.72.0)
+    rubocop-rspec (1.36.0)
+      rubocop (>= 0.68.1)
     ruby-graphviz (1.2.4)
     ruby-progressbar (1.10.1)
     ruby_dep (1.5.0)
@@ -502,6 +504,7 @@ DEPENDENCIES
   rubocop (~> 0.72.0)
   rubocop-performance (~> 1.4)
   rubocop-rails (~> 2.2)
+  rubocop-rspec (~> 1.36)
   selenium-webdriver (~> 3.14)
   sentry-raven
   shoulda-matchers (= 4.0.0.rc1)