How to install Rspec

Add rspec-rails to both the :development and :test groups of your app’s Gemfile:

# Run against this stable release

group :development, :test do

  gem 'rspec-rails', '~> 6.0.0'

end

# Download and install

$ bundle install

# Generate boilerplate configuration files

# (check the comments in each generated file for more information)

$ rails generate rspec:install

      create  .rspec

      create  spec

      create  spec/spec_helper.rb

      create  spec/rails_helper.rb

$ rails generate respec:model user

# Running spec

$ bundle exec rspec spec/models (Run all spec files)

$ bundle exec rspec spec/models/user_spec.rb (Run a single spec file)

$ rails generate rspec:system users

# Running spec

$ bundle exec rspec spec/system/users_spec.rb

Source: rspec-rails

Tip: ※$ rails generate