- Added byebug, minitest, mocha and simplecov gems;

- Setup minitest and simplecov;
- Added dummy app;
- Added and using en and pt_BR I18n translations;
- Created RailsFakeApi::ApplicationController;
- Handling errors;
- Created essential tests.

Author: fernandokosh

Gemfile

@@ -5,5 +5,6 @@ source "https://rubygems.org"
 gemspec
 
 gem "rake", "~> 13.0"
+gem "byebug"
 gem "test-unit", "~> 3.0"
 gem "rubocop", "~> 1.21"

Gemfile.lock

@@ -0,0 +1,268 @@
+PATH
+  remote: .
+  specs:
+    rails_fake_api (0.1.0)
+      rails (>= 8.0.0)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    actioncable (8.0.2)
+      actionpack (= 8.0.2)
+      activesupport (= 8.0.2)
+      nio4r (~> 2.0)
+      websocket-driver (>= 0.6.1)
+      zeitwerk (~> 2.6)
+    actionmailbox (8.0.2)
+      actionpack (= 8.0.2)
+      activejob (= 8.0.2)
+      activerecord (= 8.0.2)
+      activestorage (= 8.0.2)
+      activesupport (= 8.0.2)
+      mail (>= 2.8.0)
+    actionmailer (8.0.2)
+      actionpack (= 8.0.2)
+      actionview (= 8.0.2)
+      activejob (= 8.0.2)
+      activesupport (= 8.0.2)
+      mail (>= 2.8.0)
+      rails-dom-testing (~> 2.2)
+    actionpack (8.0.2)
+      actionview (= 8.0.2)
+      activesupport (= 8.0.2)
+      nokogiri (>= 1.8.5)
+      rack (>= 2.2.4)
+      rack-session (>= 1.0.1)
+      rack-test (>= 0.6.3)
+      rails-dom-testing (~> 2.2)
+      rails-html-sanitizer (~> 1.6)
+      useragent (~> 0.16)
+    actiontext (8.0.2)
+      actionpack (= 8.0.2)
+      activerecord (= 8.0.2)
+      activestorage (= 8.0.2)
+      activesupport (= 8.0.2)
+      globalid (>= 0.6.0)
+      nokogiri (>= 1.8.5)
+    actionview (8.0.2)
+      activesupport (= 8.0.2)
+      builder (~> 3.1)
+      erubi (~> 1.11)
+      rails-dom-testing (~> 2.2)
+      rails-html-sanitizer (~> 1.6)
+    activejob (8.0.2)
+      activesupport (= 8.0.2)
+      globalid (>= 0.3.6)
+    activemodel (8.0.2)
+      activesupport (= 8.0.2)
+    activerecord (8.0.2)
+      activemodel (= 8.0.2)
+      activesupport (= 8.0.2)
+      timeout (>= 0.4.0)
+    activestorage (8.0.2)
+      actionpack (= 8.0.2)
+      activejob (= 8.0.2)
+      activerecord (= 8.0.2)
+      activesupport (= 8.0.2)
+      marcel (~> 1.0)
+    activesupport (8.0.2)
+      base64
+      benchmark (>= 0.3)
+      bigdecimal
+      concurrent-ruby (~> 1.0, >= 1.3.1)
+      connection_pool (>= 2.2.5)
+      drb
+      i18n (>= 1.6, < 2)
+      logger (>= 1.4.2)
+      minitest (>= 5.1)
+      securerandom (>= 0.3)
+      tzinfo (~> 2.0, >= 2.0.5)
+      uri (>= 0.13.1)
+    ast (2.4.3)
+    base64 (0.2.0)
+    benchmark (0.4.0)
+    bigdecimal (3.2.0)
+    builder (3.3.0)
+    byebug (12.0.0)
+    concurrent-ruby (1.3.5)
+    connection_pool (2.5.3)
+    crass (1.0.6)
+    date (3.4.1)
+    docile (1.4.1)
+    drb (2.2.3)
+    erb (5.0.1)
+    erubi (1.13.1)
+    globalid (1.2.1)
+      activesupport (>= 6.1)
+    i18n (1.14.7)
+      concurrent-ruby (~> 1.0)
+    io-console (0.8.0)
+    irb (1.15.2)
+      pp (>= 0.6.0)
+      rdoc (>= 4.0.0)
+      reline (>= 0.4.2)
+    json (2.12.2)
+    language_server-protocol (3.17.0.5)
+    lint_roller (1.1.0)
+    logger (1.7.0)
+    loofah (2.24.1)
+      crass (~> 1.0.2)
+      nokogiri (>= 1.12.0)
+    mail (2.8.1)
+      mini_mime (>= 0.1.1)
+      net-imap
+      net-pop
+      net-smtp
+    marcel (1.0.4)
+    mini_mime (1.1.5)
+    minitest (5.25.5)
+    mocha (2.7.1)
+      ruby2_keywords (>= 0.0.5)
+    net-imap (0.5.8)
+      date
+      net-protocol
+    net-pop (0.1.2)
+      net-protocol
+    net-protocol (0.2.2)
+      timeout
+    net-smtp (0.5.1)
+      net-protocol
+    nio4r (2.7.4)
+    nokogiri (1.18.8-aarch64-linux-gnu)
+      racc (~> 1.4)
+    nokogiri (1.18.8-aarch64-linux-musl)
+      racc (~> 1.4)
+    nokogiri (1.18.8-arm-linux-gnu)
+      racc (~> 1.4)
+    nokogiri (1.18.8-arm-linux-musl)
+      racc (~> 1.4)
+    nokogiri (1.18.8-arm64-darwin)
+      racc (~> 1.4)
+    nokogiri (1.18.8-x86_64-darwin)
+      racc (~> 1.4)
+    nokogiri (1.18.8-x86_64-linux-gnu)
+      racc (~> 1.4)
+    nokogiri (1.18.8-x86_64-linux-musl)
+      racc (~> 1.4)
+    parallel (1.27.0)
+    parser (3.3.8.0)
+      ast (~> 2.4.1)
+      racc
+    power_assert (2.0.5)
+    pp (0.6.2)
+      prettyprint
+    prettyprint (0.2.0)
+    prism (1.4.0)
+    psych (5.2.6)
+      date
+      stringio
+    racc (1.8.1)
+    rack (3.1.15)
+    rack-session (2.1.1)
+      base64 (>= 0.1.0)
+      rack (>= 3.0.0)
+    rack-test (2.2.0)
+      rack (>= 1.3)
+    rackup (2.2.1)
+      rack (>= 3)
+    rails (8.0.2)
+      actioncable (= 8.0.2)
+      actionmailbox (= 8.0.2)
+      actionmailer (= 8.0.2)
+      actionpack (= 8.0.2)
+      actiontext (= 8.0.2)
+      actionview (= 8.0.2)
+      activejob (= 8.0.2)
+      activemodel (= 8.0.2)
+      activerecord (= 8.0.2)
+      activestorage (= 8.0.2)
+      activesupport (= 8.0.2)
+      bundler (>= 1.15.0)
+      railties (= 8.0.2)
+    rails-dom-testing (2.3.0)
+      activesupport (>= 5.0.0)
+      minitest
+      nokogiri (>= 1.6)
+    rails-html-sanitizer (1.6.2)
+      loofah (~> 2.21)
+      nokogiri (>= 1.15.7, != 1.16.7, != 1.16.6, != 1.16.5, != 1.16.4, != 1.16.3, != 1.16.2, != 1.16.1, != 1.16.0.rc1, != 1.16.0)
+    railties (8.0.2)
+      actionpack (= 8.0.2)
+      activesupport (= 8.0.2)
+      irb (~> 1.13)
+      rackup (>= 1.0.0)
+      rake (>= 12.2)
+      thor (~> 1.0, >= 1.2.2)
+      zeitwerk (~> 2.6)
+    rainbow (3.1.1)
+    rake (13.2.1)
+    rdoc (6.14.0)
+      erb
+      psych (>= 4.0.0)
+    regexp_parser (2.10.0)
+    reline (0.6.1)
+      io-console (~> 0.5)
+    rubocop (1.75.8)
+      json (~> 2.3)
+      language_server-protocol (~> 3.17.0.2)
+      lint_roller (~> 1.1.0)
+      parallel (~> 1.10)
+      parser (>= 3.3.0.2)
+      rainbow (>= 2.2.2, < 4.0)
+      regexp_parser (>= 2.9.3, < 3.0)
+      rubocop-ast (>= 1.44.0, < 2.0)
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (>= 2.4.0, < 4.0)
+    rubocop-ast (1.44.1)
+      parser (>= 3.3.7.2)
+      prism (~> 1.4)
+    ruby-progressbar (1.13.0)
+    ruby2_keywords (0.0.5)
+    securerandom (0.4.1)
+    simplecov (0.22.0)
+      docile (~> 1.1)
+      simplecov-html (~> 0.11)
+      simplecov_json_formatter (~> 0.1)
+    simplecov-html (0.13.1)
+    simplecov_json_formatter (0.1.4)
+    stringio (3.1.7)
+    test-unit (3.6.8)
+      power_assert
+    thor (1.3.2)
+    timeout (0.4.3)
+    tzinfo (2.0.6)
+      concurrent-ruby (~> 1.0)
+    unicode-display_width (3.1.4)
+      unicode-emoji (~> 4.0, >= 4.0.4)
+    unicode-emoji (4.0.4)
+    uri (1.0.3)
+    useragent (0.16.11)
+    websocket-driver (0.8.0)
+      base64
+      websocket-extensions (>= 0.1.0)
+    websocket-extensions (0.1.5)
+    zeitwerk (2.7.3)
+
+PLATFORMS
+  aarch64-linux-gnu
+  aarch64-linux-musl
+  arm-linux-gnu
+  arm-linux-musl
+  arm64-darwin
+  x86_64-darwin
+  x86_64-linux-gnu
+  x86_64-linux-musl
+
+DEPENDENCIES
+  bundler (~> 2.0)
+  byebug
+  minitest
+  mocha (~> 2.0)
+  rails_fake_api!
+  rake (~> 13.0)
+  rubocop (~> 1.21)
+  simplecov (~> 0.22)
+  test-unit (~> 3.0)
+
+BUNDLED WITH
+   2.6.7

app/controllers/rails_fake_api/application_controller.rb

@@ -0,0 +1,19 @@
+module RailsFakeApi
+  class ApplicationController < ActionController::API
+    skip_before_action :verify_authenticity_token, raise: false
+
+    rescue_from StandardError, with: :internal_server_error
+    rescue_from RailsFakeApi::Errors::ResourceNotFound, with: :resource_not_found_error
+
+    private
+
+    def resource_not_found_error(exception)
+      render json: { error: exception.message }, status: :not_found
+    end
+
+    def internal_server_error(exception)
+      Rails.logger.error "Internal Server Error: #{exception.message}\n#{exception.backtrace.join("\n")}"
+      render json: { error: I18n.t('rails_fake_api.errors.internal_server_error') }, status: :internal_server_error
+    end
+  end
+end

app/controllers/rails_fake_api/fake_api_controller.rb

@@ -1,6 +1,6 @@
 module RailsFakeApi
   class FakeApiController < ApplicationController
-    skip_before_action :verify_authenticity_token
+    skip_before_action :verify_authenticity_token, raise: false
 
     before_action :set_resource_name
     before_action :set_resource_data, only: [:show, :update, :destroy]
@@ -15,7 +15,7 @@ def show
       if @resource_data
         render json: @resource_data
       else
-        render json: { error: "Resource not found" }, status: :not_found
+        render json: { error: I18n.t('rails_fake_api.errors.resource_not_found') }, status: :not_found
       end
     end
 
@@ -44,7 +44,7 @@ def update
         JsonFileStore.write(@resource_name, data)
         render json: @resource_data
       else
-        render json: { error: "Resource not found" }, status: :not_found
+        render json: { error: I18n.t('rails_fake_api.errors.resource_not_found') }, status: :not_found
       end
     end
 
@@ -56,7 +56,7 @@ def destroy
         JsonFileStore.write(@resource_name, data)
         head :no_content
       else
-        render json: { error: "Resource not found" }, status: :not_found
+        render json: { error: I18n.t('rails_fake_api.errors.resource_not_found') }, status: :not_found
       end
     end
 

config/locales/en.yml

@@ -0,0 +1,5 @@
+en:
+  rails_fake_api:
+    errors:
+      resource_not_found: "Resource not found."
+      internal_server_error: "Internal server error."

config/locales/pt-BR.yml

@@ -0,0 +1,5 @@
+pt-BR:
+  rails_fake_api:
+    errors:
+      resource_not_found: "Recurso não encontrado."
+      internal_server_error: "Ocorreu um erro interno no servidor."

lib/rails_fake_api.rb

@@ -1,9 +1,9 @@
 # frozen_string_literal: true
 
-require_relative "rails_fake_api/version"
-require_relative "rails_fake_api/engine"
-require_relative "rails_fake_api/json_file_store"
+require "rails_fake_api/version"
+require "rails_fake_api/engine"
+require "rails_fake_api/json_file_store"
+require "rails_fake_api/errors"
 
 module RailsFakeApi
-  class Error < StandardError; end
 end

lib/rails_fake_api/engine.rb

@@ -7,6 +7,11 @@ class Engine < ::Rails::Engine
       app.config.autoload_paths += %W(#{config.root}/app/controllers)
     end
 
+    initializer "rails_fake_api.add_locales" do |app|
+      app.config.i18n.load_path += Dir[config.root.join('config', 'locales', '**', '*.{rb,yml}')]
+      # app.config.i18n.default_locale = :"pt-BR"
+    end
+
     config.generators.api_only = true
   end
 end

lib/rails_fake_api/errors.rb

@@ -0,0 +1,6 @@
+module RailsFakeApi
+  module Errors
+    class ResourceNotFound < StandardError
+    end
+  end
+end

rails_fake_api.gemspec

@@ -41,6 +41,10 @@ Gem::Specification.new do |spec|
   # Dependências de desenvolvimento (opcional, mas bom ter)
   spec.add_development_dependency "bundler", "~> 2.0"
   spec.add_development_dependency "rake", "~> 13.0"
+  spec.add_development_dependency "byebug"
+  spec.add_development_dependency "minitest"
+  spec.add_development_dependency "mocha", "~> 2.0"
+  spec.add_development_dependency "simplecov", "~> 0.22"
 
   # For more information and examples about making a new gem, check out our
   # guide at: https://bundler.io/guides/creating_gem.html