[RUBY] [Rails] I want to test with RSpec. We support your step [Introduction procedure]

Reference target person

--For those who want to test with RSpec on Rails6.0


$ rails -v
$ ruby -v
ruby 2.7.0p0 (2019-12-25 revision 647ee6f091) [x86_64-darwin19]

Introduce RSpec


group :development, :test do
  gem 'rspec-rails'
$ bundle install

$ rails g rspec:install

Install gem and create a configuration file with a generator.


--require spec_helper
--format documentation

Set the test to document format.

Browser test to introduce System Spec


group :test do
  gem 'capybara', '>= 2.15'
  gem 'webdrivers'
$ bundle install

First, install the gem.


RSpec.configure do |config|
#Added just before the bottom
  config.before(:each) do |example|
    if example.metadata[:type] == :system
      driven_by :selenium, using: :headless_chrome, screen_size: [1400, 1400]

Change RSpec settings so that the browser test works.

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