RailsプロジェクトにRspec環境を構築する - 2020年4月

Gemfileに必要するgemを追加してbundle

group :test do
  gem 'rspec-rails'
  gem 'factory_girl_rails'
  gem 'rspec-collection_matchers'
  gem 'faker'
  gem 'email_spec'
  gem 'capybara'
  gem 'webdrivers'
  gem 'timecop'
  gem 'simplecov', require: false
end

追加する部分のみ抜粋

bundle install

現時点で追加されるrspec-railsのバージョンは4.0.0

rspec-railsのinstall

rails generate rspec:install

以下のファイルが作成される

      create  .rspec
      create  spec
      create  spec/spec_helper.rb
      create  spec/rails_helper.rb

helperをいい感じに変更(diffだけ

diff --git a/spec/rails_helper.rb b/spec/rails_helper.rb
index 00345af..35c3632 100644
--- a/spec/rails_helper.rb
+++ b/spec/rails_helper.rb
@@ -6,6 +6,9 @@ require File.expand_path('../config/environment', __dir__)
 abort("The Rails environment is running in production mode!") if Rails.env.production?
 require 'rspec/rails'
 # Add additional requires below this line. Rails is not loaded until this point!
+require 'webdrivers'
+require 'email_spec'
+require 'email_spec/rspec'
 
 # Requires supporting ruby files with custom matchers and macros, etc, in
 # spec/support/ and its subdirectories. Files matching `spec/**/*_spec.rb` are
@@ -20,7 +23,7 @@ require 'rspec/rails'
 # directory. Alternatively, in the individual `*_spec.rb` files, manually
 # require only the support files necessary.
 #
-# Dir[Rails.root.join('spec', 'support', '**', '*.rb')].sort.each { |f| require f }
+Dir[Rails.root.join('spec', 'support', '**', '*.rb')].sort.each { |f| require f }
 
 # Checks for pending migrations and applies them before tests are run.
 # If you are not using ActiveRecord, you can remove these lines.
@@ -32,7 +35,7 @@ rescue ActiveRecord::PendingMigrationError => e
 end
 RSpec.configure do |config|
   # Remove this line if you're not using ActiveRecord or ActiveRecord fixtures
-  config.fixture_path = "#{::Rails.root}/spec/fixtures"
+  # config.fixture_path = "#{::Rails.root}/spec/fixtures"
 
   # If you're not using ActiveRecord, or you'd prefer not to run each of your
   # examples within a transaction, remove the following line or assign false
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index ce33d66..81868a4 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -13,6 +13,10 @@
 # it.
 #
 # See http://rubydoc.info/gems/rspec-core/RSpec/Core/Configuration
+require 'capybara/rspec'
+require 'json_matchers/rspec'
+JsonMatchers.schema_root = 'spec/support/api/schemas'
+
 RSpec.configure do |config|
   # rspec-expectations config goes here. You can use an alternate
   # assertion/expectation library such as wrong or the stdlib/minitest
diff --git a/spec/support/capybara.rb b/spec/support/capybara.rb
new file mode 100644
index 0000000..3dfc3d1
--- /dev/null
+++ b/spec/support/capybara.rb
@@ -0,0 +1,16 @@
+RSpec.configure do |config|
+  config.before(:each, type: :system) do
+    driven_by :rack_test
+  end
+
+  config.before(:each, type: :system, js: true) do
+    driven_by(:selenium, using: :headless_chrome, screen_size: [1920, 5120]) do |options|
+      options.add_argument('--lang=ja')
+      options.add_argument('--no-sandbox')