cypress js plugin and vcr integration (#103)

Author: grantspeelman

.github/workflows/ruby.yml

@@ -22,7 +22,7 @@ jobs:
     - run: gem uninstall -v '>= 2' -ax bundler || true
     - run: gem install bundler -v '< 2'
     - name: Run interaction tests
-      run: ./spec/integrations/rails_3_2/test.sh
+      run: ./specs_e2e/rails_3_2/test.sh
 
   rails_4_2:
     runs-on: ubuntu-latest
@@ -39,7 +39,7 @@ jobs:
     - run: gem uninstall -v '>= 2' -ax bundler || true
     - run: gem install bundler -v '< 2'
     - name: Run interaction tests
-      run: ./spec/integrations/rails_4_2/test.sh
+      run: ./specs_e2e/rails_4_2/test.sh
 
   rails_5_2:
     runs-on: ubuntu-latest
@@ -54,4 +54,4 @@ jobs:
     - name: Run tests
       run: bundle exec rake
     - name: Run interaction tests
-      run: ./spec/integrations/rails_5_2/test.sh
+      run: ./specs_e2e/rails_5_2/test.sh

.gitignore

@@ -6,4 +6,7 @@ spec/examples.txt
 spec/test.log
 pkg/*.gem
 vendor/bundle
-.vscode
+.vscode
+node_modules
+package-lock.json
+yarn.lock

CHANGELOG.md

@@ -1,3 +1,8 @@
+## []
+
+### Changed
+* Add support for matching npm package and VCR
+
 ## [1.12.1]
 [Compare]: https://github.com/shakacode/cypress-on-rails/compare/v1.12.0...v1.12.1
 

README.md

@@ -271,6 +271,68 @@ describe('My First Test', function() {
 })
 ```
 
+## Expermintal Features (matching npm package)
+
+Please test and give feedback
+
+add the npm package:
+
+```
+yarn add cypress-on-rails --dev
+```
+
+### for VCR
+
+#### setup
+
+Add you VCR configuration to your `cypress_helper.rb`
+
+```ruby
+require 'vcr'
+VCR.configure do |config|
+  config.hook_into :webmock
+end
+```
+
+Add to you `cypress/support/index.js`
+
+```js
+import 'cypress-on-rails/support/index'
+```
+
+Add to you `clean.rb`
+
+```ruby
+VCR.eject_cassette # make sure we no cassettes inserted before the next test starts
+```
+
+#### usage
+
+You have `vcr_insert_cassette` and `vcr_eject_cassette` available. https://www.rubydoc.info/github/vcr/vcr/VCR:insert_cassette
+
+
+```js
+describe('My First Test', function() {
+  beforeEach(() => { cy.app('load_seed') })
+
+  it('visit root', function() {
+    cy.app('clean') // have a look at cypress/app_commands/clean.rb
+
+    cy.vcr_insert_cassette('cats', { record: "new_episodes" })
+    cy.visit('/using_vcr/index')
+
+    cy.get('a').contains('Cats').click()
+    cy.contains('Wikipedia has a recording of a cat meowing, because why not?')
+
+    cy.vcr_eject_cassette();
+
+    cy.vcr_insert_cassette('cats')
+    cy.visit('/using_vcr/record_cats')
+    cy.contains('Wikipedia has a recording of a cat meowing, because why not?')
+  })
+})
+```
+
 ## Usage with other rack applications
 
 Add CypressOnRails to your config.ru

cypress-on-rails.gemspec

@@ -20,6 +20,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'rspec'
   s.add_development_dependency 'railties', '>= 3.2'
   s.add_development_dependency 'factory_bot'
+  s.add_development_dependency 'vcr'
   s.metadata = {
     "bug_tracker_uri"   => "https://github.com/shakacode/cypress-on-rails/issues",
     "changelog_uri"     => "https://github.com/shakacode/cypress-on-rails/blob/master/CHANGELOG.md",

lib/cypress_on_rails/middleware.rb

@@ -1,11 +1,13 @@
 require 'json'
 require 'rack'
-require 'cypress_on_rails/configuration'
+require 'cypress_on_rails/middleware_config'
 require 'cypress_on_rails/command_executor'
 
 module CypressOnRails
   # Middleware to handle cypress commands and eval
   class Middleware
+    include MiddlewareConfig
+
     def initialize(app, command_executor = CommandExecutor, file = ::File)
       @app = app
       @command_executor = command_executor
@@ -23,14 +25,6 @@ def call(env)
 
     private
 
-    def configuration
-      CypressOnRails.configuration
-    end
-
-    def logger
-      configuration.logger
-    end
-
     Command = Struct.new(:name, :options, :cypress_folder) do
       # @return [Array<Cypress::Middleware::Command>]
       def self.from_body(body, configuration)
@@ -71,7 +65,8 @@ def handle_command(req)
           [500, {'Content-Type' => 'application/json'}, [output]]
         end
       else
-        [404, {}, ["could not find command file: #{missing_command.file_path}"]]
+        output = {"message" => "could not find command file: #{missing_command.file_path}"}.to_json
+        [404, {'Content-Type' => 'application/json'}, [output]]
       end
     end
   end

lib/cypress_on_rails/middleware_config.rb

@@ -0,0 +1,17 @@
+require 'json'
+require 'rack'
+require 'cypress_on_rails/configuration'
+
+module CypressOnRails
+  module MiddlewareConfig
+    protected
+
+    def configuration
+      CypressOnRails.configuration
+    end
+
+    def logger
+      configuration.logger
+    end
+  end
+end

lib/cypress_on_rails/railtie.rb

@@ -1,12 +1,14 @@
 require 'rails/railtie'
 require 'cypress_on_rails/configuration'
-require 'cypress_on_rails/middleware'
 
 module CypressOnRails
   class Railtie < Rails::Railtie
     initializer :setup_cypress_middleware, after: :load_config_initializers do |app|
       if CypressOnRails.configuration.use_middleware?
+        require 'cypress_on_rails/middleware'
         app.middleware.use Middleware
+        require 'cypress_on_rails/vcr_middleware'
+        app.middleware.use VCRMiddleware
       end
     end
   end

lib/cypress_on_rails/vcr_middleware.rb

@@ -0,0 +1,60 @@
+require 'json'
+require 'rack'
+require 'cypress_on_rails/middleware_config'
+
+module CypressOnRails
+  # Middleware to handle vcr
+  class VCRMiddleware
+    include MiddlewareConfig
+
+    def initialize(app, vcr = nil)
+      @app = app
+      @vcr = vcr
+    end
+
+    def call(env)
+      request = Rack::Request.new(env)
+      if request.path.start_with?('/__cypress__/vcr/insert')
+        configuration.tagged_logged { handle_insert(request) }
+      elsif request.path.start_with?('/__cypress__/vcr/eject')
+        configuration.tagged_logged { handle_eject }
+      else
+        @app.call(env)
+      end
+    end
+
+    private
+
+    def handle_insert(req)
+      body = JSON.parse(req.body.read)
+      logger.info "vcr insert cassette: #{body}"
+      cassette_name = body[0]
+      options = (body[1] || {}).symbolize_keys
+      options[:record] = options[:record].to_sym if options[:record]
+      options[:match_requests_on] = options[:match_requests_on].map(&:to_sym) if options[:match_requests_on]
+      options[:serialize_with] = options[:serialize_with].to_sym if options[:serialize_with]
+      options[:persist_with] = options[:persist_with].to_sym if options[:persist_with]
+      vcr.insert_cassette(cassette_name, options)
+      [201, {'Content-Type' => 'application/json'}, [{'message': 'OK'}.to_json]]
+    rescue LoadError, ArgumentError => e
+      [501, {'Content-Type' => 'application/json'}, [{'message': e.message}.to_json]]
+    end
+
+    def handle_eject
+      logger.info "vcr eject cassette"
+      vcr.eject_cassette
+      [201, {'Content-Type' => 'application/json'}, [{'message': 'OK'}.to_json]]
+    rescue LoadError, ArgumentError => e
+      [501, {'Content-Type' => 'application/json'}, [{'message': e.message}.to_json]]
+    end
+
+    def vcr
+      return @vcr if @vcr
+      require 'vcr'
+      VCR.configure do |config|
+        config.cassette_library_dir = "#{configuration.cypress_folder}/fixtures/vcr_cassettes"
+      end
+      @vcr = VCR
+    end
+  end
+end

lib/generators/cypress_on_rails/install_generator.rb

@@ -4,38 +4,37 @@ class InstallGenerator < Rails::Generators::Base
     class_option :install_cypress, type: :boolean, default: true
     class_option :install_cypress_with, type: :string, default: 'yarn'
     class_option :install_cypress_examples, type: :boolean, default: false
+    class_option :experimental, type: :boolean, default: false
     source_root File.expand_path('../templates', __FILE__)
 
     def install_cypress
-      if !Dir.exists?(options.cypress_folder) || Dir["#{options.cypress_folder}/*"].empty?
-        directories = options.cypress_folder.split('/')
-        directories.pop
-        install_dir = "#{Dir.pwd}/#{directories.join('/')}"
-        command = nil
-        if options.install_cypress
-          if options.install_cypress_with == 'yarn'
-            command = "yarn --cwd=#{install_dir} add cypress --dev"
-          elsif options.install_cypress_with == 'npm'
-            command = "cd #{install_dir}; npm install cypress --save-dev"
-          end
-          if command
-            say command
-            fail 'failed to install cypress' unless system(command)
-          end
+      directories = options.cypress_folder.split('/')
+      directories.pop
+      install_dir = "#{Dir.pwd}/#{directories.join('/')}"
+      command = nil
+      if options.install_cypress
+        if options.install_cypress_with == 'yarn'
+          command = "yarn --cwd=#{install_dir} add cypress --dev"
+        elsif options.install_cypress_with == 'npm'
+          command = "cd #{install_dir}; npm install cypress --save-dev"
         end
-        if options.install_cypress_examples
-          directory 'spec/cypress/integration/examples', "#{options.cypress_folder}/integration/examples"
-          directory 'spec/cypress/fixtures', "#{options.cypress_folder}/fixtures"
+        if command
+          say command
+          fail 'failed to install cypress' unless system(command)
         end
-        copy_file "spec/cypress/support/index.js", "#{options.cypress_folder}/support/index.js"
-        copy_file "spec/cypress/support/commands.js", "#{options.cypress_folder}/support/commands.js"
-        copy_file "spec/cypress.json", "#{options.cypress_folder}/../cypress.json"
       end
+      if options.install_cypress_examples
+        directory 'spec/cypress/integration/examples', "#{options.cypress_folder}/integration/examples"
+        directory 'spec/cypress/fixtures', "#{options.cypress_folder}/fixtures"
+      end
+      template "spec/cypress/support/index.js.erb", "#{options.cypress_folder}/support/index.js"
+      copy_file "spec/cypress/support/commands.js", "#{options.cypress_folder}/support/commands.js"
+      copy_file "spec/cypress.json", "#{options.cypress_folder}/../cypress.json"
     end
 
     def add_initial_files
       template "config/initializers/cypress_on_rails.rb.erb", "config/initializers/cypress_on_rails.rb"
-      copy_file "spec/cypress/cypress_helper.rb", "#{options.cypress_folder}/cypress_helper.rb"
+      template "spec/cypress/cypress_helper.rb.erb", "#{options.cypress_folder}/cypress_helper.rb"
       copy_file "spec/cypress/support/on-rails.js", "#{options.cypress_folder}/support/on-rails.js"
       directory 'spec/cypress/app_commands', "#{options.cypress_folder}/app_commands"
       directory 'spec/cypress/integration/rails_examples', "#{options.cypress_folder}/integration/rails_examples"