Test with other Rails versions

.gitignore

@@ -12,8 +12,15 @@
 # rspec failure tracking
 .rspec_status
 
-# Stuff to ignore in the test_app
+# Stuff to ignore in the test_apps
 rails_5_test_app/tmp
 rails_5_test_app/log
 rails_5_test_app/.byebug_history
-rails_5_test_app/log/development.log
+
+rails_4_test_app/tmp
+rails_4_test_app/log
+rails_4_test_app/.byebug_history
+
+rails_6_test_app/tmp
+rails_6_test_app/log
+rails_6_test_app/.byebug_history

.travis.yml

@@ -1,9 +1,21 @@
 ---
 sudo: false
 language: ruby
-rvm:
-  - 2.3
-cache: bundler
 before_install:
   - gem update --system
   - gem install bundler
+cache: bundler
+matrix:
+  include:
+  - rvm: 2.3.8
+    gemfile: ./rails_4_test_app/Gemfile
+    script: cd rails_4_test_app && bundle exec rspec
+  - rvm: 2.3.8
+    gemfile: ./rails_5_test_app/Gemfile
+    script: cd rails_5_test_app && bundle exec rspec
+  - rvm: 2.5.1
+    gemfile: ./rails_6_test_app/Gemfile
+    script: cd rails_6_test_app && bundle exec rspec
+  - rvm: 2.3.8
+    gemfile: Gemfile
+    script: bundle exec rspec

api_error_handler.gemspec

@@ -18,7 +18,7 @@ Gem::Specification.new do |spec|
   # Specify which files should be added to the gem when it is released.
   # The `git ls-files -z` loads the files in the RubyGem that have been added into git.
   spec.files         = Dir.chdir(File.expand_path('..', __FILE__)) do
-    `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features|test_app)/}) }
+    `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features|rails_.+)/}) }
   end
   spec.bindir        = "exe"
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }

rails_4_test_app/.rspec

@@ -0,0 +1 @@
+--require spec_helper

rails_4_test_app/Gemfile

@@ -0,0 +1,52 @@
+source 'https://rubygems.org'
+git_source(:github) { |repo| "https://github.com/#{repo}.git" }
+
+ruby '2.3.8'
+
+# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
+gem 'rails', '~> 5.2.3'
+# Use sqlite3 as the database for Active Record
+gem 'sqlite3'
+# Use Puma as the app server
+gem 'puma', '~> 3.11'
+# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
+gem 'jbuilder', '~> 2.5'
+# Use ActiveModel has_secure_password
+# gem 'bcrypt', '~> 3.1.7'
+
+# Use ActiveStorage variant
+# gem 'mini_magick', '~> 4.8'
+
+# Use Capistrano for deployment
+# gem 'capistrano-rails', group: :development
+
+# Reduces boot times through caching; required in config/boot.rb
+gem 'bootsnap', '>= 1.1.0', require: false
+
+gem 'api_error_handler', path: '..'
+
+group :development, :test do
+  # Call 'byebug' anywhere in the code to stop execution and get a debugger console
+  gem 'byebug', platforms: [:mri, :mingw, :x64_mingw]
+  gem 'rspec-rails', '~> 3.8.2'
+end
+
+group :development do
+  # Access an interactive console on exception pages or by calling 'console' anywhere in the code.
+  gem 'web-console', '>= 3.3.0'
+  gem 'listen', '>= 3.0.5', '< 3.2'
+  # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
+  gem 'spring'
+  gem 'spring-watcher-listen', '~> 2.0.0'
+end
+
+group :test do
+  # Adds support for Capybara system testing and selenium driver
+  # gem 'capybara', '>= 2.15'
+  # gem 'selenium-webdriver'
+  # Easy installation and use of chromedriver to run system tests with Chrome
+  # gem 'chromedriver-helper'
+end
+
+# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
+gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]

rails_4_test_app/Gemfile.lock

@@ -0,0 +1,188 @@
+PATH
+  remote: ..
+  specs:
+    api_error_handler (0.1.0)
+      actionpack (>= 4.0)
+      activesupport (>= 4.0)
+      rack (>= 1.0)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    actioncable (5.2.3)
+      actionpack (= 5.2.3)
+      nio4r (~> 2.0)
+      websocket-driver (>= 0.6.1)
+    actionmailer (5.2.3)
+      actionpack (= 5.2.3)
+      actionview (= 5.2.3)
+      activejob (= 5.2.3)
+      mail (~> 2.5, >= 2.5.4)
+      rails-dom-testing (~> 2.0)
+    actionpack (5.2.3)
+      actionview (= 5.2.3)
+      activesupport (= 5.2.3)
+      rack (~> 2.0)
+      rack-test (>= 0.6.3)
+      rails-dom-testing (~> 2.0)
+      rails-html-sanitizer (~> 1.0, >= 1.0.2)
+    actionview (5.2.3)
+      activesupport (= 5.2.3)
+      builder (~> 3.1)
+      erubi (~> 1.4)
+      rails-dom-testing (~> 2.0)
+      rails-html-sanitizer (~> 1.0, >= 1.0.3)
+    activejob (5.2.3)
+      activesupport (= 5.2.3)
+      globalid (>= 0.3.6)
+    activemodel (5.2.3)
+      activesupport (= 5.2.3)
+    activerecord (5.2.3)
+      activemodel (= 5.2.3)
+      activesupport (= 5.2.3)
+      arel (>= 9.0)
+    activestorage (5.2.3)
+      actionpack (= 5.2.3)
+      activerecord (= 5.2.3)
+      marcel (~> 0.3.1)
+    activesupport (5.2.3)
+      concurrent-ruby (~> 1.0, >= 1.0.2)
+      i18n (>= 0.7, < 2)
+      minitest (~> 5.1)
+      tzinfo (~> 1.1)
+    arel (9.0.0)
+    bindex (0.8.1)
+    bootsnap (1.4.4)
+      msgpack (~> 1.0)
+    builder (3.2.3)
+    byebug (11.0.1)
+    concurrent-ruby (1.1.5)
+    crass (1.0.4)
+    diff-lcs (1.3)
+    erubi (1.8.0)
+    ffi (1.11.1)
+    globalid (0.4.2)
+      activesupport (>= 4.2.0)
+    i18n (1.6.0)
+      concurrent-ruby (~> 1.0)
+    jbuilder (2.9.1)
+      activesupport (>= 4.2.0)
+    listen (3.1.5)
+      rb-fsevent (~> 0.9, >= 0.9.4)
+      rb-inotify (~> 0.9, >= 0.9.7)
+      ruby_dep (~> 1.2)
+    loofah (2.2.3)
+      crass (~> 1.0.2)
+      nokogiri (>= 1.5.9)
+    mail (2.7.1)
+      mini_mime (>= 0.1.1)
+    marcel (0.3.3)
+      mimemagic (~> 0.3.2)
+    method_source (0.9.2)
+    mimemagic (0.3.3)
+    mini_mime (1.0.2)
+    mini_portile2 (2.4.0)
+    minitest (5.11.3)
+    msgpack (1.3.1)
+    nio4r (2.4.0)
+    nokogiri (1.10.4)
+      mini_portile2 (~> 2.4.0)
+    puma (3.12.1)
+    rack (2.0.7)
+    rack-test (1.1.0)
+      rack (>= 1.0, < 3)
+    rails (5.2.3)
+      actioncable (= 5.2.3)
+      actionmailer (= 5.2.3)
+      actionpack (= 5.2.3)
+      actionview (= 5.2.3)
+      activejob (= 5.2.3)
+      activemodel (= 5.2.3)
+      activerecord (= 5.2.3)
+      activestorage (= 5.2.3)
+      activesupport (= 5.2.3)
+      bundler (>= 1.3.0)
+      railties (= 5.2.3)
+      sprockets-rails (>= 2.0.0)
+    rails-dom-testing (2.0.3)
+      activesupport (>= 4.2.0)
+      nokogiri (>= 1.6)
+    rails-html-sanitizer (1.2.0)
+      loofah (~> 2.2, >= 2.2.2)
+    railties (5.2.3)
+      actionpack (= 5.2.3)
+      activesupport (= 5.2.3)
+      method_source
+      rake (>= 0.8.7)
+      thor (>= 0.19.0, < 2.0)
+    rake (12.3.3)
+    rb-fsevent (0.10.3)
+    rb-inotify (0.10.0)
+      ffi (~> 1.0)
+    rspec-core (3.8.2)
+      rspec-support (~> 3.8.0)
+    rspec-expectations (3.8.4)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.8.0)
+    rspec-mocks (3.8.1)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.8.0)
+    rspec-rails (3.8.2)
+      actionpack (>= 3.0)
+      activesupport (>= 3.0)
+      railties (>= 3.0)
+      rspec-core (~> 3.8.0)
+      rspec-expectations (~> 3.8.0)
+      rspec-mocks (~> 3.8.0)
+      rspec-support (~> 3.8.0)
+    rspec-support (3.8.2)
+    ruby_dep (1.5.0)
+    spring (2.0.2)
+      activesupport (>= 4.2)
+    spring-watcher-listen (2.0.1)
+      listen (>= 2.7, < 4.0)
+      spring (>= 1.2, < 3.0)
+    sprockets (3.7.2)
+      concurrent-ruby (~> 1.0)
+      rack (> 1, < 3)
+    sprockets-rails (3.2.1)
+      actionpack (>= 4.0)
+      activesupport (>= 4.0)
+      sprockets (>= 3.0.0)
+    sqlite3 (1.4.1)
+    thor (0.20.3)
+    thread_safe (0.3.6)
+    tzinfo (1.2.5)
+      thread_safe (~> 0.1)
+    web-console (3.7.0)
+      actionview (>= 5.0)
+      activemodel (>= 5.0)
+      bindex (>= 0.4.0)
+      railties (>= 5.0)
+    websocket-driver (0.7.1)
+      websocket-extensions (>= 0.1.0)
+    websocket-extensions (0.1.4)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  api_error_handler!
+  bootsnap (>= 1.1.0)
+  byebug
+  jbuilder (~> 2.5)
+  listen (>= 3.0.5, < 3.2)
+  puma (~> 3.11)
+  rails (~> 5.2.3)
+  rspec-rails (~> 3.8.2)
+  spring
+  spring-watcher-listen (~> 2.0.0)
+  sqlite3
+  tzinfo-data
+  web-console (>= 3.3.0)
+
+RUBY VERSION
+   ruby 2.3.8p459
+
+BUNDLED WITH
+   2.0.2

rails_4_test_app/Rakefile

@@ -0,0 +1,6 @@
+# Add your own tasks in files placed in lib/tasks ending in .rake,
+# for example lib/tasks/capistrano.rake, and they will automatically be available to Rake.
+
+require_relative 'config/application'
+
+Rails.application.load_tasks

rails_4_test_app/app/assets/config/manifest.js

@@ -0,0 +1,2 @@
+//= link_tree ../images
+//= link_directory ../stylesheets .css

rails_4_test_app/app/assets/stylesheets/application.css

@@ -0,0 +1,15 @@
+/*
+ * This is a manifest file that'll be compiled into application.css, which will include all the files
+ * listed below.
+ *
+ * Any CSS and SCSS file within this directory, lib/assets/stylesheets, or any plugin's
+ * vendor/assets/stylesheets directory can be referenced here using a relative path.
+ *
+ * You're free to add application-wide styles to this file and they'll appear at the bottom of the
+ * compiled file so the styles you add here take precedence over styles defined in any other CSS/SCSS
+ * files in this directory. Styles in this file should be added after the last require_* statement.
+ * It is generally better to create a new file per style scope.
+ *
+ *= require_tree .
+ *= require_self
+ */

rails_4_test_app/app/controllers/application_controller.rb

@@ -0,0 +1,2 @@
+class ApplicationController < ActionController::Base
+end

rails_4_test_app/app/controllers/tests_controller.rb

@@ -0,0 +1,21 @@
+class TestsController < ApplicationController
+  handle_api_errors()
+
+  def runtime_error
+    raise RuntimeError, "This is a RuntimeError!"
+  end
+
+  def record_not_found
+    raise ActiveRecord::RecordNotFound, "Not found!"
+  end
+
+  def not_implemented
+    raise ActionController::NotImplemented, "Not Implemented!"
+  end
+
+  def custom_auth_error
+    # `config.action_dispatch.rescue_responses` has been altered to map this
+    # error to the :unauthorized status code in config/application.rb
+    raise CustomAuthError, "Custom authentication error!"
+  end
+end

rails_4_test_app/app/errors/custom_auth_error.rb

@@ -0,0 +1 @@
+class CustomAuthError < StandardError; end

rails_4_test_app/app/helpers/application_helper.rb

@@ -0,0 +1,2 @@
+module ApplicationHelper
+end

rails_4_test_app/app/jobs/application_job.rb

@@ -0,0 +1,2 @@
+class ApplicationJob < ActiveJob::Base
+end

rails_4_test_app/app/models/application_record.rb

@@ -0,0 +1,3 @@
+class ApplicationRecord < ActiveRecord::Base
+  self.abstract_class = true
+end

rails_4_test_app/app/views/layouts/application.html.erb

@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Rails4TestApp</title>
+    <%= csrf_meta_tags %>
+    <%= csp_meta_tag %>
+
+    <%= stylesheet_link_tag    'application', media: 'all' %>
+  </head>
+
+  <body>
+    <%= yield %>
+  </body>
+</html>

rails_4_test_app/bin/bundle

@@ -0,0 +1,3 @@
+#!/usr/bin/env ruby
+ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../Gemfile', __dir__)
+load Gem.bin_path('bundler', 'bundle')

rails_4_test_app/bin/rails

@@ -0,0 +1,9 @@
+#!/usr/bin/env ruby
+begin
+  load File.expand_path('../spring', __FILE__)
+rescue LoadError => e
+  raise unless e.message.include?('spring')
+end
+APP_PATH = File.expand_path('../config/application', __dir__)
+require_relative '../config/boot'
+require 'rails/commands'

rails_4_test_app/bin/rake

@@ -0,0 +1,9 @@
+#!/usr/bin/env ruby
+begin
+  load File.expand_path('../spring', __FILE__)
+rescue LoadError => e
+  raise unless e.message.include?('spring')
+end
+require_relative '../config/boot'
+require 'rake'
+Rake.application.run