diff --git a/.gitignore b/.gitignore
index ce4d0af..88033ee 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,7 +13,7 @@
 .rspec_status
 
 # Stuff to ignore in the test_app
-test_app/tmp
-test_app/log
-test_app/.byebug_history
-test_app/log/development.log
+rails_5_test_app/tmp
+rails_5_test_app/log
+rails_5_test_app/.byebug_history
+rails_5_test_app/log/development.log
diff --git a/.ruby-version b/.ruby-version
new file mode 100644
index 0000000..bc4abe8
--- /dev/null
+++ b/.ruby-version
@@ -0,0 +1 @@
+2.3.8
diff --git a/.travis.yml b/.travis.yml
index 6c15885..7290e8d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,9 +2,8 @@
 sudo: false
 language: ruby
 rvm:
-  - 2.4
+  - 2.3
 cache: bundler
 before_install:
   - gem update --system
   - gem install bundler
-script: ./bin/test.sh
diff --git a/api_error_handler.gemspec b/api_error_handler.gemspec
index fcaaee6..69bfcb6 100644
--- a/api_error_handler.gemspec
+++ b/api_error_handler.gemspec
@@ -8,7 +8,7 @@ Gem::Specification.new do |spec|
   spec.version       = ApiErrorHandler::VERSION
   spec.authors       = ["James Stonehill"]
   spec.email         = ["james.stonehill@gmail.com"]
-  spec.required_ruby_version = '~> 2.2'
+  spec.required_ruby_version = '~> 2.3'
 
   spec.summary       = %q{A gem that helps you easily handle exceptions in your Rails API and return informative responses to the client.}
   spec.description   = %q{A gem that helps you easily handle exceptions in your Ruby on Rails API and return informative responses to the client by serializing exceptions into JSON and other popular API formats and returning a response with a status code that makes sense based on the exception.}
diff --git a/bin/test.sh b/bin/test.sh
deleted file mode 100755
index ec264f6..0000000
--- a/bin/test.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/usr/bin/env bash
-bundle install && bundle exec rspec
-bundle install --gemfile ./test_app/Gemfile && bundle exec --gemfile ./test_app/Gemfile rspec
diff --git a/test_app/.rspec b/rails_5_test_app/.rspec
similarity index 100%
rename from test_app/.rspec
rename to rails_5_test_app/.rspec
diff --git a/test_app/Gemfile b/rails_5_test_app/Gemfile
similarity index 91%
rename from test_app/Gemfile
rename to rails_5_test_app/Gemfile
index a195710..febf231 100644
--- a/test_app/Gemfile
+++ b/rails_5_test_app/Gemfile
@@ -1,7 +1,7 @@
 source 'https://rubygems.org'
 git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
-ruby '2.4.6'
+ruby '2.3.8'
 
 # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
 gem 'rails', '~> 5.2.3'
@@ -10,7 +10,7 @@ gem 'sqlite3'
 # Use Puma as the app server
 gem 'puma', '~> 3.11'
 # Use SCSS for stylesheets
-gem 'sass-rails', '~> 5.0'
+# gem 'sass-rails', '~> 5.0'
 # Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
 gem 'jbuilder', '~> 2.5'
 # Use Redis adapter to run Action Cable in production
@@ -32,6 +32,7 @@ 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
@@ -41,15 +42,14 @@ group :development do
   # 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'
-  gem 'rspec-rails'
 end
 
 group :test do
   # Adds support for Capybara system testing and selenium driver
-  gem 'capybara', '>= 2.15'
-  gem 'selenium-webdriver'
+  # gem 'capybara', '>= 2.15'
+  # gem 'selenium-webdriver'
   # Easy installation and use of chromedriver to run system tests with Chrome
-  gem 'chromedriver-helper'
+  # gem 'chromedriver-helper'
 end
 
 # Windows does not include zoneinfo files, so bundle the tzinfo-data gem
diff --git a/test_app/Gemfile.lock b/rails_5_test_app/Gemfile.lock
similarity index 79%
rename from test_app/Gemfile.lock
rename to rails_5_test_app/Gemfile.lock
index 74ba0d0..5a2fb40 100644
--- a/test_app/Gemfile.lock
+++ b/rails_5_test_app/Gemfile.lock
@@ -50,29 +50,12 @@ GEM
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.6.0)
-      public_suffix (>= 2.0.2, < 4.0)
-    archive-zip (0.12.0)
-      io-like (~> 0.3.0)
     arel (9.0.0)
     bindex (0.8.1)
     bootsnap (1.4.4)
       msgpack (~> 1.0)
     builder (3.2.3)
     byebug (11.0.1)
-    capybara (3.28.0)
-      addressable
-      mini_mime (>= 0.1.3)
-      nokogiri (~> 1.8)
-      rack (>= 1.6.0)
-      rack-test (>= 0.6.3)
-      regexp_parser (~> 1.5)
-      xpath (~> 3.2)
-    childprocess (1.0.1)
-      rake (< 13.0)
-    chromedriver-helper (2.1.1)
-      archive-zip (~> 0.10)
-      nokogiri (~> 1.8)
     concurrent-ruby (1.1.5)
     crass (1.0.4)
     diff-lcs (1.3)
@@ -82,7 +65,6 @@ GEM
       activesupport (>= 4.2.0)
     i18n (1.6.0)
       concurrent-ruby (~> 1.0)
-    io-like (0.3.0)
     jbuilder (2.9.1)
       activesupport (>= 4.2.0)
     listen (3.1.5)
@@ -105,7 +87,6 @@ GEM
     nio4r (2.4.0)
     nokogiri (1.10.4)
       mini_portile2 (~> 2.4.0)
-    public_suffix (3.1.1)
     puma (3.12.1)
     rack (2.0.7)
     rack-test (1.1.0)
@@ -138,7 +119,6 @@ GEM
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)
       ffi (~> 1.0)
-    regexp_parser (1.6.0)
     rspec-core (3.8.2)
       rspec-support (~> 3.8.0)
     rspec-expectations (3.8.4)
@@ -157,22 +137,8 @@ GEM
       rspec-support (~> 3.8.0)
     rspec-support (3.8.2)
     ruby_dep (1.5.0)
-    rubyzip (1.2.3)
-    sass (3.7.4)
-      sass-listen (~> 4.0.0)
-    sass-listen (4.0.0)
-      rb-fsevent (~> 0.9, >= 0.9.4)
-      rb-inotify (~> 0.9, >= 0.9.7)
-    sass-rails (5.1.0)
-      railties (>= 5.2.0)
-      sass (~> 3.1)
-      sprockets (>= 2.8, < 4.0)
-      sprockets-rails (>= 2.0, < 4.0)
-      tilt (>= 1.1, < 3)
-    selenium-webdriver (3.142.3)
-      childprocess (>= 0.5, < 2.0)
-      rubyzip (~> 1.2, >= 1.2.2)
-    spring (2.1.0)
+    spring (2.0.2)
+      activesupport (>= 4.2)
     spring-watcher-listen (2.0.1)
       listen (>= 2.7, < 4.0)
       spring (>= 1.2, < 3.0)
@@ -186,7 +152,6 @@ GEM
     sqlite3 (1.4.1)
     thor (0.20.3)
     thread_safe (0.3.6)
-    tilt (2.0.9)
     tzinfo (1.2.5)
       thread_safe (~> 0.1)
     web-console (3.7.0)
@@ -197,8 +162,6 @@ GEM
     websocket-driver (0.7.1)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.4)
-    xpath (3.2.0)
-      nokogiri (~> 1.8)
 
 PLATFORMS
   ruby
@@ -207,15 +170,11 @@ DEPENDENCIES
   api_error_handler!
   bootsnap (>= 1.1.0)
   byebug
-  capybara (>= 2.15)
-  chromedriver-helper
   jbuilder (~> 2.5)
   listen (>= 3.0.5, < 3.2)
   puma (~> 3.11)
   rails (~> 5.2.3)
-  rspec-rails
-  sass-rails (~> 5.0)
-  selenium-webdriver
+  rspec-rails (~> 3.8.2)
   spring
   spring-watcher-listen (~> 2.0.0)
   sqlite3
@@ -223,7 +182,7 @@ DEPENDENCIES
   web-console (>= 3.3.0)
 
 RUBY VERSION
-   ruby 2.4.6p354
+   ruby 2.3.8p459
 
 BUNDLED WITH
    2.0.2
diff --git a/test_app/Rakefile b/rails_5_test_app/Rakefile
similarity index 100%
rename from test_app/Rakefile
rename to rails_5_test_app/Rakefile
diff --git a/test_app/app/assets/config/manifest.js b/rails_5_test_app/app/assets/config/manifest.js
similarity index 100%
rename from test_app/app/assets/config/manifest.js
rename to rails_5_test_app/app/assets/config/manifest.js
diff --git a/test_app/app/assets/images/.keep b/rails_5_test_app/app/assets/images/.keep
similarity index 100%
rename from test_app/app/assets/images/.keep
rename to rails_5_test_app/app/assets/images/.keep
diff --git a/test_app/app/assets/stylesheets/application.css b/rails_5_test_app/app/assets/stylesheets/application.css
similarity index 100%
rename from test_app/app/assets/stylesheets/application.css
rename to rails_5_test_app/app/assets/stylesheets/application.css
diff --git a/test_app/app/channels/application_cable/channel.rb b/rails_5_test_app/app/channels/application_cable/channel.rb
similarity index 100%
rename from test_app/app/channels/application_cable/channel.rb
rename to rails_5_test_app/app/channels/application_cable/channel.rb
diff --git a/test_app/app/channels/application_cable/connection.rb b/rails_5_test_app/app/channels/application_cable/connection.rb
similarity index 100%
rename from test_app/app/channels/application_cable/connection.rb
rename to rails_5_test_app/app/channels/application_cable/connection.rb
diff --git a/test_app/app/controllers/api_controller.rb b/rails_5_test_app/app/controllers/api_controller.rb
similarity index 100%
rename from test_app/app/controllers/api_controller.rb
rename to rails_5_test_app/app/controllers/api_controller.rb
diff --git a/test_app/app/controllers/application_controller.rb b/rails_5_test_app/app/controllers/application_controller.rb
similarity index 100%
rename from test_app/app/controllers/application_controller.rb
rename to rails_5_test_app/app/controllers/application_controller.rb
diff --git a/test_app/app/controllers/concerns/.keep b/rails_5_test_app/app/controllers/concerns/.keep
similarity index 100%
rename from test_app/app/controllers/concerns/.keep
rename to rails_5_test_app/app/controllers/concerns/.keep
diff --git a/test_app/app/controllers/tests_controller.rb b/rails_5_test_app/app/controllers/tests_controller.rb
similarity index 100%
rename from test_app/app/controllers/tests_controller.rb
rename to rails_5_test_app/app/controllers/tests_controller.rb
diff --git a/test_app/app/errors/custom_auth_error.rb b/rails_5_test_app/app/errors/custom_auth_error.rb
similarity index 100%
rename from test_app/app/errors/custom_auth_error.rb
rename to rails_5_test_app/app/errors/custom_auth_error.rb
diff --git a/test_app/app/helpers/application_helper.rb b/rails_5_test_app/app/helpers/application_helper.rb
similarity index 100%
rename from test_app/app/helpers/application_helper.rb
rename to rails_5_test_app/app/helpers/application_helper.rb
diff --git a/test_app/app/jobs/application_job.rb b/rails_5_test_app/app/jobs/application_job.rb
similarity index 100%
rename from test_app/app/jobs/application_job.rb
rename to rails_5_test_app/app/jobs/application_job.rb
diff --git a/test_app/app/mailers/application_mailer.rb b/rails_5_test_app/app/mailers/application_mailer.rb
similarity index 100%
rename from test_app/app/mailers/application_mailer.rb
rename to rails_5_test_app/app/mailers/application_mailer.rb
diff --git a/test_app/app/models/application_record.rb b/rails_5_test_app/app/models/application_record.rb
similarity index 100%
rename from test_app/app/models/application_record.rb
rename to rails_5_test_app/app/models/application_record.rb
diff --git a/test_app/app/models/concerns/.keep b/rails_5_test_app/app/models/concerns/.keep
similarity index 100%
rename from test_app/app/models/concerns/.keep
rename to rails_5_test_app/app/models/concerns/.keep
diff --git a/test_app/app/views/layouts/application.html.erb b/rails_5_test_app/app/views/layouts/application.html.erb
similarity index 100%
rename from test_app/app/views/layouts/application.html.erb
rename to rails_5_test_app/app/views/layouts/application.html.erb
diff --git a/test_app/app/views/layouts/mailer.html.erb b/rails_5_test_app/app/views/layouts/mailer.html.erb
similarity index 100%
rename from test_app/app/views/layouts/mailer.html.erb
rename to rails_5_test_app/app/views/layouts/mailer.html.erb
diff --git a/test_app/app/views/layouts/mailer.text.erb b/rails_5_test_app/app/views/layouts/mailer.text.erb
similarity index 100%
rename from test_app/app/views/layouts/mailer.text.erb
rename to rails_5_test_app/app/views/layouts/mailer.text.erb
diff --git a/test_app/bin/bundle b/rails_5_test_app/bin/bundle
similarity index 100%
rename from test_app/bin/bundle
rename to rails_5_test_app/bin/bundle
diff --git a/test_app/bin/rails b/rails_5_test_app/bin/rails
similarity index 100%
rename from test_app/bin/rails
rename to rails_5_test_app/bin/rails
diff --git a/test_app/bin/rake b/rails_5_test_app/bin/rake
similarity index 100%
rename from test_app/bin/rake
rename to rails_5_test_app/bin/rake
diff --git a/test_app/bin/setup b/rails_5_test_app/bin/setup
similarity index 100%
rename from test_app/bin/setup
rename to rails_5_test_app/bin/setup
diff --git a/test_app/bin/spring b/rails_5_test_app/bin/spring
similarity index 100%
rename from test_app/bin/spring
rename to rails_5_test_app/bin/spring
diff --git a/test_app/bin/update b/rails_5_test_app/bin/update
similarity index 100%
rename from test_app/bin/update
rename to rails_5_test_app/bin/update
diff --git a/test_app/bin/yarn b/rails_5_test_app/bin/yarn
similarity index 100%
rename from test_app/bin/yarn
rename to rails_5_test_app/bin/yarn
diff --git a/test_app/config.ru b/rails_5_test_app/config.ru
similarity index 100%
rename from test_app/config.ru
rename to rails_5_test_app/config.ru
diff --git a/test_app/config/application.rb b/rails_5_test_app/config/application.rb
similarity index 100%
rename from test_app/config/application.rb
rename to rails_5_test_app/config/application.rb
diff --git a/test_app/config/boot.rb b/rails_5_test_app/config/boot.rb
similarity index 100%
rename from test_app/config/boot.rb
rename to rails_5_test_app/config/boot.rb
diff --git a/test_app/config/cable.yml b/rails_5_test_app/config/cable.yml
similarity index 100%
rename from test_app/config/cable.yml
rename to rails_5_test_app/config/cable.yml
diff --git a/test_app/config/credentials.yml.enc b/rails_5_test_app/config/credentials.yml.enc
similarity index 100%
rename from test_app/config/credentials.yml.enc
rename to rails_5_test_app/config/credentials.yml.enc
diff --git a/test_app/config/database.yml b/rails_5_test_app/config/database.yml
similarity index 100%
rename from test_app/config/database.yml
rename to rails_5_test_app/config/database.yml
diff --git a/test_app/config/environment.rb b/rails_5_test_app/config/environment.rb
similarity index 100%
rename from test_app/config/environment.rb
rename to rails_5_test_app/config/environment.rb
diff --git a/test_app/config/environments/development.rb b/rails_5_test_app/config/environments/development.rb
similarity index 100%
rename from test_app/config/environments/development.rb
rename to rails_5_test_app/config/environments/development.rb
diff --git a/test_app/config/environments/production.rb b/rails_5_test_app/config/environments/production.rb
similarity index 100%
rename from test_app/config/environments/production.rb
rename to rails_5_test_app/config/environments/production.rb
diff --git a/test_app/config/environments/test.rb b/rails_5_test_app/config/environments/test.rb
similarity index 100%
rename from test_app/config/environments/test.rb
rename to rails_5_test_app/config/environments/test.rb
diff --git a/test_app/config/initializers/application_controller_renderer.rb b/rails_5_test_app/config/initializers/application_controller_renderer.rb
similarity index 100%
rename from test_app/config/initializers/application_controller_renderer.rb
rename to rails_5_test_app/config/initializers/application_controller_renderer.rb
diff --git a/test_app/config/initializers/assets.rb b/rails_5_test_app/config/initializers/assets.rb
similarity index 100%
rename from test_app/config/initializers/assets.rb
rename to rails_5_test_app/config/initializers/assets.rb
diff --git a/test_app/config/initializers/backtrace_silencers.rb b/rails_5_test_app/config/initializers/backtrace_silencers.rb
similarity index 100%
rename from test_app/config/initializers/backtrace_silencers.rb
rename to rails_5_test_app/config/initializers/backtrace_silencers.rb
diff --git a/test_app/config/initializers/content_security_policy.rb b/rails_5_test_app/config/initializers/content_security_policy.rb
similarity index 100%
rename from test_app/config/initializers/content_security_policy.rb
rename to rails_5_test_app/config/initializers/content_security_policy.rb
diff --git a/test_app/config/initializers/cookies_serializer.rb b/rails_5_test_app/config/initializers/cookies_serializer.rb
similarity index 100%
rename from test_app/config/initializers/cookies_serializer.rb
rename to rails_5_test_app/config/initializers/cookies_serializer.rb
diff --git a/test_app/config/initializers/filter_parameter_logging.rb b/rails_5_test_app/config/initializers/filter_parameter_logging.rb
similarity index 100%
rename from test_app/config/initializers/filter_parameter_logging.rb
rename to rails_5_test_app/config/initializers/filter_parameter_logging.rb
diff --git a/test_app/config/initializers/inflections.rb b/rails_5_test_app/config/initializers/inflections.rb
similarity index 100%
rename from test_app/config/initializers/inflections.rb
rename to rails_5_test_app/config/initializers/inflections.rb
diff --git a/test_app/config/initializers/mime_types.rb b/rails_5_test_app/config/initializers/mime_types.rb
similarity index 100%
rename from test_app/config/initializers/mime_types.rb
rename to rails_5_test_app/config/initializers/mime_types.rb
diff --git a/test_app/config/initializers/wrap_parameters.rb b/rails_5_test_app/config/initializers/wrap_parameters.rb
similarity index 100%
rename from test_app/config/initializers/wrap_parameters.rb
rename to rails_5_test_app/config/initializers/wrap_parameters.rb
diff --git a/test_app/config/locales/en.yml b/rails_5_test_app/config/locales/en.yml
similarity index 100%
rename from test_app/config/locales/en.yml
rename to rails_5_test_app/config/locales/en.yml
diff --git a/test_app/config/master.key b/rails_5_test_app/config/master.key
similarity index 100%
rename from test_app/config/master.key
rename to rails_5_test_app/config/master.key
diff --git a/test_app/config/puma.rb b/rails_5_test_app/config/puma.rb
similarity index 100%
rename from test_app/config/puma.rb
rename to rails_5_test_app/config/puma.rb
diff --git a/test_app/config/routes.rb b/rails_5_test_app/config/routes.rb
similarity index 100%
rename from test_app/config/routes.rb
rename to rails_5_test_app/config/routes.rb
diff --git a/test_app/config/spring.rb b/rails_5_test_app/config/spring.rb
similarity index 100%
rename from test_app/config/spring.rb
rename to rails_5_test_app/config/spring.rb
diff --git a/test_app/config/storage.yml b/rails_5_test_app/config/storage.yml
similarity index 100%
rename from test_app/config/storage.yml
rename to rails_5_test_app/config/storage.yml
diff --git a/test_app/db/seeds.rb b/rails_5_test_app/db/seeds.rb
similarity index 100%
rename from test_app/db/seeds.rb
rename to rails_5_test_app/db/seeds.rb
diff --git a/test_app/db/test.sqlite3 b/rails_5_test_app/db/test.sqlite3
similarity index 100%
rename from test_app/db/test.sqlite3
rename to rails_5_test_app/db/test.sqlite3
diff --git a/test_app/lib/assets/.keep b/rails_5_test_app/lib/assets/.keep
similarity index 100%
rename from test_app/lib/assets/.keep
rename to rails_5_test_app/lib/assets/.keep
diff --git a/test_app/lib/tasks/.keep b/rails_5_test_app/lib/tasks/.keep
similarity index 100%
rename from test_app/lib/tasks/.keep
rename to rails_5_test_app/lib/tasks/.keep
diff --git a/test_app/package.json b/rails_5_test_app/package.json
similarity index 100%
rename from test_app/package.json
rename to rails_5_test_app/package.json
diff --git a/test_app/public/404.html b/rails_5_test_app/public/404.html
similarity index 100%
rename from test_app/public/404.html
rename to rails_5_test_app/public/404.html
diff --git a/test_app/public/422.html b/rails_5_test_app/public/422.html
similarity index 100%
rename from test_app/public/422.html
rename to rails_5_test_app/public/422.html
diff --git a/test_app/public/500.html b/rails_5_test_app/public/500.html
similarity index 100%
rename from test_app/public/500.html
rename to rails_5_test_app/public/500.html
diff --git a/test_app/public/apple-touch-icon-precomposed.png b/rails_5_test_app/public/apple-touch-icon-precomposed.png
similarity index 100%
rename from test_app/public/apple-touch-icon-precomposed.png
rename to rails_5_test_app/public/apple-touch-icon-precomposed.png
diff --git a/test_app/public/apple-touch-icon.png b/rails_5_test_app/public/apple-touch-icon.png
similarity index 100%
rename from test_app/public/apple-touch-icon.png
rename to rails_5_test_app/public/apple-touch-icon.png
diff --git a/test_app/public/favicon.ico b/rails_5_test_app/public/favicon.ico
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diff --git a/test_app/public/robots.txt b/rails_5_test_app/public/robots.txt
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diff --git a/test_app/spec/controllers/tests_controller_spec.rb b/rails_5_test_app/spec/controllers/tests_controller_spec.rb
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rename from test_app/spec/controllers/tests_controller_spec.rb
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diff --git a/test_app/spec/rails_helper.rb b/rails_5_test_app/spec/rails_helper.rb
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diff --git a/test_app/spec/spec_helper.rb b/rails_5_test_app/spec/spec_helper.rb
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rename from test_app/spec/spec_helper.rb
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diff --git a/test_app/log/.keep b/rails_5_test_app/storage/.keep
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rename from test_app/log/.keep
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diff --git a/test_app/test/application_system_test_case.rb b/rails_5_test_app/test/application_system_test_case.rb
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diff --git a/test_app/test/controllers/.keep b/rails_5_test_app/test/fixtures/.keep
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diff --git a/test_app/test/fixtures/.keep b/rails_5_test_app/test/fixtures/files/.keep
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diff --git a/test_app/test/fixtures/files/.keep b/rails_5_test_app/test/helpers/.keep
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rename from test_app/test/fixtures/files/.keep
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diff --git a/test_app/test/helpers/.keep b/rails_5_test_app/test/integration/.keep
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rename from test_app/test/helpers/.keep
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diff --git a/test_app/test/integration/.keep b/rails_5_test_app/test/mailers/.keep
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rename from test_app/test/integration/.keep
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diff --git a/test_app/test/mailers/.keep b/rails_5_test_app/test/models/.keep
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diff --git a/test_app/test/test_helper.rb b/rails_5_test_app/test/test_helper.rb
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diff --git a/test_app/test/system/.keep b/rails_5_test_app/vendor/.keep
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diff --git a/test_app/.ruby-version b/test_app/.ruby-version
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--- a/test_app/.ruby-version
+++ /dev/null
@@ -1 +0,0 @@
-2.4.6
\ No newline at end of file
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index e69de29..0000000