diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4b0eef7..c32ce1a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -43,11 +43,8 @@ jobs:
 
       - name: Run tests
         env:
-          DATABASE_URL: "sqlite3:test"
-          RAILS_ENV: test
-        run: |
-          bundle exec rails db:test:prepare
-          bundle exec rails test
+          ADAPTER: sqlite3
+        run: bundle exec rake test
 
   postgres:
     runs-on: ubuntu-latest
@@ -74,8 +71,8 @@ jobs:
         image: postgres:12
         env:
           POSTGRES_USER: postgres
-          POSTGRES_PASSWORD: password
-          POSTGRES_DB: test
+          POSTGRES_PASSWORD: postgres
+          POSTGRES_DB: sequenced_test
         ports: ['5432:5432']
 
     steps:
@@ -93,8 +90,5 @@ jobs:
 
       - name: Run tests
         env:
-          DATABASE_URL: postgres://postgres:password@localhost:5432/test
-          RAILS_ENV: test
-        run: |
-          bundle exec rails db:test:prepare
-          bundle exec rails test
+          ADAPTER: postgresql
+        run: bundle exec rake test
diff --git a/.gitignore b/.gitignore
index 2a1f56f..55576d6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,12 +1,10 @@
 .bundle/
 .rvmrc
 Gemfile.lock
+gemfiles/*.lock
 log/*.log
 pkg/
-test/dummy/db/*.sqlite3
-test/dummy/log/*.log
-test/dummy/tmp/
-test/dummy/.sass-cache
+*.sqlite3
 *.gem
 .ruby-version
 .ruby-gemset
diff --git a/Appraisals b/Appraisals
index 00188dc..de16b61 100644
--- a/Appraisals
+++ b/Appraisals
@@ -1,19 +1,19 @@
 appraise "rails-5-2" do
-  gem "rails", "~> 5.2.0"
+  gem "activerecord", "~> 5.2.0"
 end
 
 appraise "rails-6" do
-  gem "rails", "~> 6.0.0"
+  gem "activerecord", "~> 6.0.0"
 end
 
 appraise "rails-6-1" do
-  gem "rails", "~> 6.1.0"
+  gem "activerecord", "~> 6.1.0"
 end
 
 appraise "rails-7" do
-  gem "rails", "~> 7.0.0"
+  gem "activerecord", "~> 7.0.0"
 end
 
 appraise "rails-master" do
-  gem "rails", github: "rails/rails", branch: "main"
+  gem "activerecord", github: "rails/rails", branch: "main"
 end
diff --git a/Gemfile b/Gemfile
index 98de768..41d9a51 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,26 +1,15 @@
 source "https://rubygems.org"
 
-# Declare your gem's dependencies in sequenced.gemspec.
-# Bundler will treat runtime dependencies like base dependencies, and
-# development dependencies will be added by default to the :development group.
 gemspec
 
 gem "appraisal"
 gem "standardrb"
-
-group :development, :test do
-  gem "sqlite3", "~> 1.4.4"
-  # gem 'mysql2'
-  gem "pg"
-  gem "net-imap"
-  gem "net-pop"
-  gem "net-smtp"
+gem "sqlite3", "~> 1.4.4"
+gem "pg"
+
+if defined?(@ar_gem_requirement)
+  gem "activerecord", @ar_gem_requirement
+  gem "railties", @ar_gem_requirement
+else
+  gem "activerecord" # latest
 end
-
-# Declare any dependencies that are still in development here instead of in
-# your gemspec. These might include edge Rails or gems from your path or
-# Git. Remember to move these dependencies to your gemspec before releasing
-# your gem to rubygems.org.
-
-# To use debugger
-# gem 'ruby-debug19', :require => 'ruby-debug'
diff --git a/Rakefile b/Rakefile
index 8bd8d57..dfb0f40 100644
--- a/Rakefile
+++ b/Rakefile
@@ -32,28 +32,3 @@ Rake::TestTask.new(:test) do |t|
 end
 
 task default: :test
-
-namespace :db do
-  task :create do
-    # File.expand_path is executed directory of generated Rails app
-    rakefile = File.expand_path("Rakefile", "test/dummy/")
-    command = "rake -f '%s' db:create" % rakefile
-    sh(command)
-  end
-
-  task :drop do
-    # File.expand_path is executed directory of generated Rails app
-    rakefile = File.expand_path("Rakefile", "test/dummy/")
-    command = "rake -f '%s' db:drop" % rakefile
-    sh(command)
-  end
-
-  namespace :test do
-    task :prepare do
-      # File.expand_path is executed directory of generated Rails app
-      rakefile = File.expand_path("Rakefile", "test/dummy/")
-      command = "rake -f '%s' db:test:prepare" % rakefile
-      sh(command)
-    end
-  end
-end
diff --git a/gemfiles/rails_5_2.gemfile b/gemfiles/rails_5_2.gemfile
index 77d0340..6945cb2 100644
--- a/gemfiles/rails_5_2.gemfile
+++ b/gemfiles/rails_5_2.gemfile
@@ -4,14 +4,8 @@ source "https://rubygems.org"
 
 gem "appraisal"
 gem "standardrb"
-gem "rails", "~> 5.2.0"
-
-group :development, :test do
-  gem "sqlite3", "~> 1.4.4"
-  gem "pg"
-  gem "net-imap"
-  gem "net-pop"
-  gem "net-smtp"
-end
+gem "sqlite3", "~> 1.4.4"
+gem "pg"
+gem "activerecord", "~> 5.2.0"
 
 gemspec path: "../"
diff --git a/gemfiles/rails_5_2.gemfile.lock b/gemfiles/rails_5_2.gemfile.lock
index ab059d2..c0892b9 100644
--- a/gemfiles/rails_5_2.gemfile.lock
+++ b/gemfiles/rails_5_2.gemfile.lock
@@ -8,42 +8,12 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    actioncable (5.2.8.1)
-      actionpack (= 5.2.8.1)
-      nio4r (~> 2.0)
-      websocket-driver (>= 0.6.1)
-    actionmailer (5.2.8.1)
-      actionpack (= 5.2.8.1)
-      actionview (= 5.2.8.1)
-      activejob (= 5.2.8.1)
-      mail (~> 2.5, >= 2.5.4)
-      rails-dom-testing (~> 2.0)
-    actionpack (5.2.8.1)
-      actionview (= 5.2.8.1)
-      activesupport (= 5.2.8.1)
-      rack (~> 2.0, >= 2.0.8)
-      rack-test (>= 0.6.3)
-      rails-dom-testing (~> 2.0)
-      rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    actionview (5.2.8.1)
-      activesupport (= 5.2.8.1)
-      builder (~> 3.1)
-      erubi (~> 1.4)
-      rails-dom-testing (~> 2.0)
-      rails-html-sanitizer (~> 1.0, >= 1.0.3)
-    activejob (5.2.8.1)
-      activesupport (= 5.2.8.1)
-      globalid (>= 0.3.6)
     activemodel (5.2.8.1)
       activesupport (= 5.2.8.1)
     activerecord (5.2.8.1)
       activemodel (= 5.2.8.1)
       activesupport (= 5.2.8.1)
       arel (>= 9.0)
-    activestorage (5.2.8.1)
-      actionpack (= 5.2.8.1)
-      activerecord (= 5.2.8.1)
-      marcel (~> 1.0.0)
     activesupport (5.2.8.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
@@ -55,80 +25,16 @@ GEM
       thor (>= 0.14.0)
     arel (9.0.0)
     ast (2.4.2)
-    builder (3.2.4)
+    byebug (11.1.3)
     concurrent-ruby (1.1.10)
-    crass (1.0.6)
-    digest (3.1.0)
-    erubi (1.11.0)
-    globalid (1.0.0)
-      activesupport (>= 5.0)
     i18n (1.12.0)
       concurrent-ruby (~> 1.0)
     json (2.6.2)
-    loofah (2.18.0)
-      crass (~> 1.0.2)
-      nokogiri (>= 1.5.9)
-    mail (2.7.1)
-      mini_mime (>= 0.1.1)
-    marcel (1.0.2)
-    method_source (1.0.0)
-    mini_mime (1.1.2)
-    mini_portile2 (2.8.0)
-    minitest (5.16.2)
-    net-imap (0.2.3)
-      digest
-      net-protocol
-      strscan
-    net-pop (0.1.1)
-      digest
-      net-protocol
-      timeout
-    net-protocol (0.1.3)
-      timeout
-    net-smtp (0.3.1)
-      digest
-      net-protocol
-      timeout
-    nio4r (2.5.8)
-    nokogiri (1.13.8)
-      mini_portile2 (~> 2.8.0)
-      racc (~> 1.4)
-    nokogiri (1.13.8-arm64-darwin)
-      racc (~> 1.4)
-    nokogiri (1.13.8-x86_64-linux)
-      racc (~> 1.4)
+    minitest (5.16.3)
     parallel (1.22.1)
     parser (3.1.2.1)
       ast (~> 2.4.1)
     pg (1.4.3)
-    racc (1.6.0)
-    rack (2.2.4)
-    rack-test (2.0.2)
-      rack (>= 1.3)
-    rails (5.2.8.1)
-      actioncable (= 5.2.8.1)
-      actionmailer (= 5.2.8.1)
-      actionpack (= 5.2.8.1)
-      actionview (= 5.2.8.1)
-      activejob (= 5.2.8.1)
-      activemodel (= 5.2.8.1)
-      activerecord (= 5.2.8.1)
-      activestorage (= 5.2.8.1)
-      activesupport (= 5.2.8.1)
-      bundler (>= 1.3.0)
-      railties (= 5.2.8.1)
-      sprockets-rails (>= 2.0.0)
-    rails-dom-testing (2.0.3)
-      activesupport (>= 4.2.0)
-      nokogiri (>= 1.6)
-    rails-html-sanitizer (1.4.3)
-      loofah (~> 2.3)
-    railties (5.2.8.1)
-      actionpack (= 5.2.8.1)
-      activesupport (= 5.2.8.1)
-      method_source
-      rake (>= 0.8.7)
-      thor (>= 0.19.0, < 2.0)
     rainbow (3.1.1)
     rake (13.0.6)
     regexp_parser (2.5.0)
@@ -149,45 +55,30 @@ GEM
       rubocop (>= 1.7.0, < 2.0)
       rubocop-ast (>= 0.4.0)
     ruby-progressbar (1.11.0)
-    sprockets (4.1.1)
-      concurrent-ruby (~> 1.0)
-      rack (> 1, < 3)
-    sprockets-rails (3.4.2)
-      actionpack (>= 5.2)
-      activesupport (>= 5.2)
-      sprockets (>= 3.0.0)
     sqlite3 (1.4.4)
     standard (1.16.0)
       rubocop (= 1.35.0)
       rubocop-performance (= 1.14.3)
     standardrb (1.0.1)
       standard
-    strscan (3.0.4)
     thor (1.2.1)
     thread_safe (0.3.6)
-    timeout (0.3.0)
     tzinfo (1.2.10)
       thread_safe (~> 0.1)
     unicode-display_width (2.2.0)
-    websocket-driver (0.7.5)
-      websocket-extensions (>= 0.1.0)
-    websocket-extensions (0.1.5)
 
 PLATFORMS
-  arm64-darwin-21
   ruby
-  x86_64-linux
+  x86_64-darwin-20
 
 DEPENDENCIES
+  activerecord (~> 5.2.0)
   appraisal
-  net-imap
-  net-pop
-  net-smtp
+  byebug
   pg
-  rails (~> 5.2.0)
   sequenced!
   sqlite3 (~> 1.4.4)
   standardrb
 
 BUNDLED WITH
-   2.3.16
+   2.3.17
diff --git a/gemfiles/rails_6.gemfile b/gemfiles/rails_6.gemfile
index 8ac956d..4d30b42 100644
--- a/gemfiles/rails_6.gemfile
+++ b/gemfiles/rails_6.gemfile
@@ -4,14 +4,8 @@ source "https://rubygems.org"
 
 gem "appraisal"
 gem "standardrb"
-gem "rails", "~> 6.0.0"
-
-group :development, :test do
-  gem "sqlite3", "~> 1.4.4"
-  gem "pg"
-  gem "net-imap"
-  gem "net-pop"
-  gem "net-smtp"
-end
+gem "sqlite3", "~> 1.4.4"
+gem "pg"
+gem "activerecord", "~> 6.0.0"
 
 gemspec path: "../"
diff --git a/gemfiles/rails_6.gemfile.lock b/gemfiles/rails_6.gemfile.lock
index 3175f3f..4dfb819 100644
--- a/gemfiles/rails_6.gemfile.lock
+++ b/gemfiles/rails_6.gemfile.lock
@@ -8,55 +8,11 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    actioncable (6.0.5.1)
-      actionpack (= 6.0.5.1)
-      nio4r (~> 2.0)
-      websocket-driver (>= 0.6.1)
-    actionmailbox (6.0.5.1)
-      actionpack (= 6.0.5.1)
-      activejob (= 6.0.5.1)
-      activerecord (= 6.0.5.1)
-      activestorage (= 6.0.5.1)
-      activesupport (= 6.0.5.1)
-      mail (>= 2.7.1)
-    actionmailer (6.0.5.1)
-      actionpack (= 6.0.5.1)
-      actionview (= 6.0.5.1)
-      activejob (= 6.0.5.1)
-      mail (~> 2.5, >= 2.5.4)
-      rails-dom-testing (~> 2.0)
-    actionpack (6.0.5.1)
-      actionview (= 6.0.5.1)
-      activesupport (= 6.0.5.1)
-      rack (~> 2.0, >= 2.0.8)
-      rack-test (>= 0.6.3)
-      rails-dom-testing (~> 2.0)
-      rails-html-sanitizer (~> 1.0, >= 1.2.0)
-    actiontext (6.0.5.1)
-      actionpack (= 6.0.5.1)
-      activerecord (= 6.0.5.1)
-      activestorage (= 6.0.5.1)
-      activesupport (= 6.0.5.1)
-      nokogiri (>= 1.8.5)
-    actionview (6.0.5.1)
-      activesupport (= 6.0.5.1)
-      builder (~> 3.1)
-      erubi (~> 1.4)
-      rails-dom-testing (~> 2.0)
-      rails-html-sanitizer (~> 1.1, >= 1.2.0)
-    activejob (6.0.5.1)
-      activesupport (= 6.0.5.1)
-      globalid (>= 0.3.6)
     activemodel (6.0.5.1)
       activesupport (= 6.0.5.1)
     activerecord (6.0.5.1)
       activemodel (= 6.0.5.1)
       activesupport (= 6.0.5.1)
-    activestorage (6.0.5.1)
-      actionpack (= 6.0.5.1)
-      activejob (= 6.0.5.1)
-      activerecord (= 6.0.5.1)
-      marcel (~> 1.0)
     activesupport (6.0.5.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
@@ -68,78 +24,16 @@ GEM
       rake
       thor (>= 0.14.0)
     ast (2.4.2)
-    builder (3.2.4)
+    byebug (11.1.3)
     concurrent-ruby (1.1.10)
-    crass (1.0.6)
-    digest (3.1.0)
-    erubi (1.11.0)
-    globalid (1.0.0)
-      activesupport (>= 5.0)
     i18n (1.12.0)
       concurrent-ruby (~> 1.0)
     json (2.6.2)
-    loofah (2.18.0)
-      crass (~> 1.0.2)
-      nokogiri (>= 1.5.9)
-    mail (2.7.1)
-      mini_mime (>= 0.1.1)
-    marcel (1.0.2)
-    method_source (1.0.0)
-    mini_mime (1.1.2)
-    minitest (5.16.2)
-    net-imap (0.2.3)
-      digest
-      net-protocol
-      strscan
-    net-pop (0.1.1)
-      digest
-      net-protocol
-      timeout
-    net-protocol (0.1.3)
-      timeout
-    net-smtp (0.3.1)
-      digest
-      net-protocol
-      timeout
-    nio4r (2.5.8)
-    nokogiri (1.13.8-arm64-darwin)
-      racc (~> 1.4)
-    nokogiri (1.13.8-x86_64-linux)
-      racc (~> 1.4)
+    minitest (5.16.3)
     parallel (1.22.1)
     parser (3.1.2.1)
       ast (~> 2.4.1)
     pg (1.4.3)
-    racc (1.6.0)
-    rack (2.2.4)
-    rack-test (2.0.2)
-      rack (>= 1.3)
-    rails (6.0.5.1)
-      actioncable (= 6.0.5.1)
-      actionmailbox (= 6.0.5.1)
-      actionmailer (= 6.0.5.1)
-      actionpack (= 6.0.5.1)
-      actiontext (= 6.0.5.1)
-      actionview (= 6.0.5.1)
-      activejob (= 6.0.5.1)
-      activemodel (= 6.0.5.1)
-      activerecord (= 6.0.5.1)
-      activestorage (= 6.0.5.1)
-      activesupport (= 6.0.5.1)
-      bundler (>= 1.3.0)
-      railties (= 6.0.5.1)
-      sprockets-rails (>= 2.0.0)
-    rails-dom-testing (2.0.3)
-      activesupport (>= 4.2.0)
-      nokogiri (>= 1.6)
-    rails-html-sanitizer (1.4.3)
-      loofah (~> 2.3)
-    railties (6.0.5.1)
-      actionpack (= 6.0.5.1)
-      activesupport (= 6.0.5.1)
-      method_source
-      rake (>= 0.8.7)
-      thor (>= 0.20.3, < 2.0)
     rainbow (3.1.1)
     rake (13.0.6)
     regexp_parser (2.5.0)
@@ -160,45 +54,31 @@ GEM
       rubocop (>= 1.7.0, < 2.0)
       rubocop-ast (>= 0.4.0)
     ruby-progressbar (1.11.0)
-    sprockets (4.1.1)
-      concurrent-ruby (~> 1.0)
-      rack (> 1, < 3)
-    sprockets-rails (3.4.2)
-      actionpack (>= 5.2)
-      activesupport (>= 5.2)
-      sprockets (>= 3.0.0)
     sqlite3 (1.4.4)
     standard (1.16.0)
       rubocop (= 1.35.0)
       rubocop-performance (= 1.14.3)
     standardrb (1.0.1)
       standard
-    strscan (3.0.4)
     thor (1.2.1)
     thread_safe (0.3.6)
-    timeout (0.3.0)
     tzinfo (1.2.10)
       thread_safe (~> 0.1)
     unicode-display_width (2.2.0)
-    websocket-driver (0.7.5)
-      websocket-extensions (>= 0.1.0)
-    websocket-extensions (0.1.5)
     zeitwerk (2.6.0)
 
 PLATFORMS
-  arm64-darwin-21
-  x86_64-linux
+  ruby
+  x86_64-darwin-20
 
 DEPENDENCIES
+  activerecord (~> 6.0.0)
   appraisal
-  net-imap
-  net-pop
-  net-smtp
+  byebug
   pg
-  rails (~> 6.0.0)
   sequenced!
   sqlite3 (~> 1.4.4)
   standardrb
 
 BUNDLED WITH
-   2.3.16
+   2.3.17
diff --git a/gemfiles/rails_6_1.gemfile b/gemfiles/rails_6_1.gemfile
index 925ba6e..9bf4c9b 100644
--- a/gemfiles/rails_6_1.gemfile
+++ b/gemfiles/rails_6_1.gemfile
@@ -4,14 +4,8 @@ source "https://rubygems.org"
 
 gem "appraisal"
 gem "standardrb"
-gem "rails", "~> 6.1.0"
-
-group :development, :test do
-  gem "sqlite3", "~> 1.4.4"
-  gem "pg"
-  gem "net-imap"
-  gem "net-pop"
-  gem "net-smtp"
-end
+gem "sqlite3", "~> 1.4.4"
+gem "pg"
+gem "activerecord", "~> 6.1.0"
 
 gemspec path: "../"
diff --git a/gemfiles/rails_6_1.gemfile.lock b/gemfiles/rails_6_1.gemfile.lock
index 0c7e31b..b068ab2 100644
--- a/gemfiles/rails_6_1.gemfile.lock
+++ b/gemfiles/rails_6_1.gemfile.lock
@@ -8,60 +8,12 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    actioncable (6.1.6)
-      actionpack (= 6.1.6)
-      activesupport (= 6.1.6)
-      nio4r (~> 2.0)
-      websocket-driver (>= 0.6.1)
-    actionmailbox (6.1.6)
-      actionpack (= 6.1.6)
-      activejob (= 6.1.6)
-      activerecord (= 6.1.6)
-      activestorage (= 6.1.6)
-      activesupport (= 6.1.6)
-      mail (>= 2.7.1)
-    actionmailer (6.1.6)
-      actionpack (= 6.1.6)
-      actionview (= 6.1.6)
-      activejob (= 6.1.6)
-      activesupport (= 6.1.6)
-      mail (~> 2.5, >= 2.5.4)
-      rails-dom-testing (~> 2.0)
-    actionpack (6.1.6)
-      actionview (= 6.1.6)
-      activesupport (= 6.1.6)
-      rack (~> 2.0, >= 2.0.9)
-      rack-test (>= 0.6.3)
-      rails-dom-testing (~> 2.0)
-      rails-html-sanitizer (~> 1.0, >= 1.2.0)
-    actiontext (6.1.6)
-      actionpack (= 6.1.6)
-      activerecord (= 6.1.6)
-      activestorage (= 6.1.6)
-      activesupport (= 6.1.6)
-      nokogiri (>= 1.8.5)
-    actionview (6.1.6)
-      activesupport (= 6.1.6)
-      builder (~> 3.1)
-      erubi (~> 1.4)
-      rails-dom-testing (~> 2.0)
-      rails-html-sanitizer (~> 1.1, >= 1.2.0)
-    activejob (6.1.6)
-      activesupport (= 6.1.6)
-      globalid (>= 0.3.6)
-    activemodel (6.1.6)
-      activesupport (= 6.1.6)
-    activerecord (6.1.6)
-      activemodel (= 6.1.6)
-      activesupport (= 6.1.6)
-    activestorage (6.1.6)
-      actionpack (= 6.1.6)
-      activejob (= 6.1.6)
-      activerecord (= 6.1.6)
-      activesupport (= 6.1.6)
-      marcel (~> 1.0)
-      mini_mime (>= 1.1.0)
-    activesupport (6.1.6)
+    activemodel (6.1.6.1)
+      activesupport (= 6.1.6.1)
+    activerecord (6.1.6.1)
+      activemodel (= 6.1.6.1)
+      activesupport (= 6.1.6.1)
+    activesupport (6.1.6.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 1.6, < 2)
       minitest (>= 5.1)
@@ -72,78 +24,16 @@ GEM
       rake
       thor (>= 0.14.0)
     ast (2.4.2)
-    builder (3.2.4)
+    byebug (11.1.3)
     concurrent-ruby (1.1.10)
-    crass (1.0.6)
-    digest (3.1.0)
-    erubi (1.11.0)
-    globalid (1.0.0)
-      activesupport (>= 5.0)
     i18n (1.12.0)
       concurrent-ruby (~> 1.0)
     json (2.6.2)
-    loofah (2.18.0)
-      crass (~> 1.0.2)
-      nokogiri (>= 1.5.9)
-    mail (2.7.1)
-      mini_mime (>= 0.1.1)
-    marcel (1.0.2)
-    method_source (1.0.0)
-    mini_mime (1.1.2)
-    minitest (5.16.2)
-    net-imap (0.2.3)
-      digest
-      net-protocol
-      strscan
-    net-pop (0.1.1)
-      digest
-      net-protocol
-      timeout
-    net-protocol (0.1.3)
-      timeout
-    net-smtp (0.3.1)
-      digest
-      net-protocol
-      timeout
-    nio4r (2.5.8)
-    nokogiri (1.13.8-arm64-darwin)
-      racc (~> 1.4)
-    nokogiri (1.13.8-x86_64-linux)
-      racc (~> 1.4)
+    minitest (5.16.3)
     parallel (1.22.1)
     parser (3.1.2.1)
       ast (~> 2.4.1)
     pg (1.4.3)
-    racc (1.6.0)
-    rack (2.2.4)
-    rack-test (2.0.2)
-      rack (>= 1.3)
-    rails (6.1.6)
-      actioncable (= 6.1.6)
-      actionmailbox (= 6.1.6)
-      actionmailer (= 6.1.6)
-      actionpack (= 6.1.6)
-      actiontext (= 6.1.6)
-      actionview (= 6.1.6)
-      activejob (= 6.1.6)
-      activemodel (= 6.1.6)
-      activerecord (= 6.1.6)
-      activestorage (= 6.1.6)
-      activesupport (= 6.1.6)
-      bundler (>= 1.15.0)
-      railties (= 6.1.6)
-      sprockets-rails (>= 2.0.0)
-    rails-dom-testing (2.0.3)
-      activesupport (>= 4.2.0)
-      nokogiri (>= 1.6)
-    rails-html-sanitizer (1.4.3)
-      loofah (~> 2.3)
-    railties (6.1.6)
-      actionpack (= 6.1.6)
-      activesupport (= 6.1.6)
-      method_source
-      rake (>= 12.2)
-      thor (~> 1.0)
     rainbow (3.1.1)
     rake (13.0.6)
     regexp_parser (2.5.0)
@@ -164,44 +54,30 @@ GEM
       rubocop (>= 1.7.0, < 2.0)
       rubocop-ast (>= 0.4.0)
     ruby-progressbar (1.11.0)
-    sprockets (4.1.1)
-      concurrent-ruby (~> 1.0)
-      rack (> 1, < 3)
-    sprockets-rails (3.4.2)
-      actionpack (>= 5.2)
-      activesupport (>= 5.2)
-      sprockets (>= 3.0.0)
     sqlite3 (1.4.4)
     standard (1.16.0)
       rubocop (= 1.35.0)
       rubocop-performance (= 1.14.3)
     standardrb (1.0.1)
       standard
-    strscan (3.0.4)
     thor (1.2.1)
-    timeout (0.3.0)
     tzinfo (2.0.5)
       concurrent-ruby (~> 1.0)
     unicode-display_width (2.2.0)
-    websocket-driver (0.7.5)
-      websocket-extensions (>= 0.1.0)
-    websocket-extensions (0.1.5)
     zeitwerk (2.6.0)
 
 PLATFORMS
-  arm64-darwin-21
-  x86_64-linux
+  ruby
+  x86_64-darwin-20
 
 DEPENDENCIES
+  activerecord (~> 6.1.0)
   appraisal
-  net-imap
-  net-pop
-  net-smtp
+  byebug
   pg
-  rails (~> 6.1.0)
   sequenced!
   sqlite3 (~> 1.4.4)
   standardrb
 
 BUNDLED WITH
-   2.3.16
+   2.3.17
diff --git a/gemfiles/rails_7.gemfile b/gemfiles/rails_7.gemfile
index 640b87a..7cce0f5 100644
--- a/gemfiles/rails_7.gemfile
+++ b/gemfiles/rails_7.gemfile
@@ -4,14 +4,8 @@ source "https://rubygems.org"
 
 gem "appraisal"
 gem "standardrb"
-gem "rails", "~> 7.0.0"
-
-group :development, :test do
-  gem "sqlite3", "~> 1.4.4"
-  gem "pg"
-  gem "net-imap"
-  gem "net-pop"
-  gem "net-smtp"
-end
+gem "sqlite3", "~> 1.4.4"
+gem "pg"
+gem "activerecord", "~> 7.0.0"
 
 gemspec path: "../"
diff --git a/gemfiles/rails_7.gemfile.lock b/gemfiles/rails_7.gemfile.lock
index 70c7e7f..1fe6683 100644
--- a/gemfiles/rails_7.gemfile.lock
+++ b/gemfiles/rails_7.gemfile.lock
@@ -8,66 +8,11 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    actioncable (7.0.3.1)
-      actionpack (= 7.0.3.1)
-      activesupport (= 7.0.3.1)
-      nio4r (~> 2.0)
-      websocket-driver (>= 0.6.1)
-    actionmailbox (7.0.3.1)
-      actionpack (= 7.0.3.1)
-      activejob (= 7.0.3.1)
-      activerecord (= 7.0.3.1)
-      activestorage (= 7.0.3.1)
-      activesupport (= 7.0.3.1)
-      mail (>= 2.7.1)
-      net-imap
-      net-pop
-      net-smtp
-    actionmailer (7.0.3.1)
-      actionpack (= 7.0.3.1)
-      actionview (= 7.0.3.1)
-      activejob (= 7.0.3.1)
-      activesupport (= 7.0.3.1)
-      mail (~> 2.5, >= 2.5.4)
-      net-imap
-      net-pop
-      net-smtp
-      rails-dom-testing (~> 2.0)
-    actionpack (7.0.3.1)
-      actionview (= 7.0.3.1)
-      activesupport (= 7.0.3.1)
-      rack (~> 2.0, >= 2.2.0)
-      rack-test (>= 0.6.3)
-      rails-dom-testing (~> 2.0)
-      rails-html-sanitizer (~> 1.0, >= 1.2.0)
-    actiontext (7.0.3.1)
-      actionpack (= 7.0.3.1)
-      activerecord (= 7.0.3.1)
-      activestorage (= 7.0.3.1)
-      activesupport (= 7.0.3.1)
-      globalid (>= 0.6.0)
-      nokogiri (>= 1.8.5)
-    actionview (7.0.3.1)
-      activesupport (= 7.0.3.1)
-      builder (~> 3.1)
-      erubi (~> 1.4)
-      rails-dom-testing (~> 2.0)
-      rails-html-sanitizer (~> 1.1, >= 1.2.0)
-    activejob (7.0.3.1)
-      activesupport (= 7.0.3.1)
-      globalid (>= 0.3.6)
     activemodel (7.0.3.1)
       activesupport (= 7.0.3.1)
     activerecord (7.0.3.1)
       activemodel (= 7.0.3.1)
       activesupport (= 7.0.3.1)
-    activestorage (7.0.3.1)
-      actionpack (= 7.0.3.1)
-      activejob (= 7.0.3.1)
-      activerecord (= 7.0.3.1)
-      activesupport (= 7.0.3.1)
-      marcel (~> 1.0)
-      mini_mime (>= 1.1.0)
     activesupport (7.0.3.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 1.6, < 2)
@@ -78,78 +23,16 @@ GEM
       rake
       thor (>= 0.14.0)
     ast (2.4.2)
-    builder (3.2.4)
+    byebug (11.1.3)
     concurrent-ruby (1.1.10)
-    crass (1.0.6)
-    digest (3.1.0)
-    erubi (1.11.0)
-    globalid (1.0.0)
-      activesupport (>= 5.0)
     i18n (1.12.0)
       concurrent-ruby (~> 1.0)
     json (2.6.2)
-    loofah (2.18.0)
-      crass (~> 1.0.2)
-      nokogiri (>= 1.5.9)
-    mail (2.7.1)
-      mini_mime (>= 0.1.1)
-    marcel (1.0.2)
-    method_source (1.0.0)
-    mini_mime (1.1.2)
-    minitest (5.16.2)
-    net-imap (0.2.3)
-      digest
-      net-protocol
-      strscan
-    net-pop (0.1.1)
-      digest
-      net-protocol
-      timeout
-    net-protocol (0.1.3)
-      timeout
-    net-smtp (0.3.1)
-      digest
-      net-protocol
-      timeout
-    nio4r (2.5.8)
-    nokogiri (1.13.8-arm64-darwin)
-      racc (~> 1.4)
-    nokogiri (1.13.8-x86_64-linux)
-      racc (~> 1.4)
+    minitest (5.16.3)
     parallel (1.22.1)
     parser (3.1.2.1)
       ast (~> 2.4.1)
     pg (1.4.3)
-    racc (1.6.0)
-    rack (2.2.4)
-    rack-test (2.0.2)
-      rack (>= 1.3)
-    rails (7.0.3.1)
-      actioncable (= 7.0.3.1)
-      actionmailbox (= 7.0.3.1)
-      actionmailer (= 7.0.3.1)
-      actionpack (= 7.0.3.1)
-      actiontext (= 7.0.3.1)
-      actionview (= 7.0.3.1)
-      activejob (= 7.0.3.1)
-      activemodel (= 7.0.3.1)
-      activerecord (= 7.0.3.1)
-      activestorage (= 7.0.3.1)
-      activesupport (= 7.0.3.1)
-      bundler (>= 1.15.0)
-      railties (= 7.0.3.1)
-    rails-dom-testing (2.0.3)
-      activesupport (>= 4.2.0)
-      nokogiri (>= 1.6)
-    rails-html-sanitizer (1.4.3)
-      loofah (~> 2.3)
-    railties (7.0.3.1)
-      actionpack (= 7.0.3.1)
-      activesupport (= 7.0.3.1)
-      method_source
-      rake (>= 12.2)
-      thor (~> 1.0)
-      zeitwerk (~> 2.5)
     rainbow (3.1.1)
     rake (13.0.6)
     regexp_parser (2.5.0)
@@ -176,31 +59,23 @@ GEM
       rubocop-performance (= 1.14.3)
     standardrb (1.0.1)
       standard
-    strscan (3.0.4)
     thor (1.2.1)
-    timeout (0.3.0)
     tzinfo (2.0.5)
       concurrent-ruby (~> 1.0)
     unicode-display_width (2.2.0)
-    websocket-driver (0.7.5)
-      websocket-extensions (>= 0.1.0)
-    websocket-extensions (0.1.5)
-    zeitwerk (2.6.0)
 
 PLATFORMS
-  arm64-darwin-21
-  x86_64-linux
+  ruby
+  x86_64-darwin-20
 
 DEPENDENCIES
+  activerecord (~> 7.0.0)
   appraisal
-  net-imap
-  net-pop
-  net-smtp
+  byebug
   pg
-  rails (~> 7.0.0)
   sequenced!
   sqlite3 (~> 1.4.4)
   standardrb
 
 BUNDLED WITH
-   2.3.16
+   2.3.17
diff --git a/gemfiles/rails_master.gemfile b/gemfiles/rails_master.gemfile
index 23adb67..9c0bb8b 100644
--- a/gemfiles/rails_master.gemfile
+++ b/gemfiles/rails_master.gemfile
@@ -4,14 +4,8 @@ source "https://rubygems.org"
 
 gem "appraisal"
 gem "standardrb"
-gem "rails", github: "rails/rails", branch: "main"
-
-group :development, :test do
-  gem "sqlite3", "~> 1.4.4"
-  gem "pg"
-  gem "net-imap"
-  gem "net-pop"
-  gem "net-smtp"
-end
+gem "sqlite3", "~> 1.4.4"
+gem "pg"
+gem "activerecord", github: "rails/rails", branch: "main"
 
 gemspec path: "../"
diff --git a/gemfiles/rails_master.gemfile.lock b/gemfiles/rails_master.gemfile.lock
index c899b09..a88a381 100644
--- a/gemfiles/rails_master.gemfile.lock
+++ b/gemfiles/rails_master.gemfile.lock
@@ -1,96 +1,19 @@
 GIT
   remote: https://github.com/rails/rails.git
-  revision: cb5765a12751ca03866a89cf19fefcbc2d93a8ea
+  revision: d66441f39127c284c2fc7ac9bfe3e8270b115033
   branch: main
   specs:
-    actioncable (7.1.0.alpha)
-      actionpack (= 7.1.0.alpha)
-      activesupport (= 7.1.0.alpha)
-      nio4r (~> 2.0)
-      websocket-driver (>= 0.6.1)
-      zeitwerk (~> 2.6)
-    actionmailbox (7.1.0.alpha)
-      actionpack (= 7.1.0.alpha)
-      activejob (= 7.1.0.alpha)
-      activerecord (= 7.1.0.alpha)
-      activestorage (= 7.1.0.alpha)
-      activesupport (= 7.1.0.alpha)
-      mail (>= 2.7.1)
-      net-imap
-      net-pop
-      net-smtp
-    actionmailer (7.1.0.alpha)
-      actionpack (= 7.1.0.alpha)
-      actionview (= 7.1.0.alpha)
-      activejob (= 7.1.0.alpha)
-      activesupport (= 7.1.0.alpha)
-      mail (~> 2.5, >= 2.5.4)
-      net-imap
-      net-pop
-      net-smtp
-      rails-dom-testing (~> 2.0)
-    actionpack (7.1.0.alpha)
-      actionview (= 7.1.0.alpha)
-      activesupport (= 7.1.0.alpha)
-      rack (~> 2.0, >= 2.2.0)
-      rack-test (>= 0.6.3)
-      rails-dom-testing (~> 2.0)
-      rails-html-sanitizer (~> 1.0, >= 1.2.0)
-    actiontext (7.1.0.alpha)
-      actionpack (= 7.1.0.alpha)
-      activerecord (= 7.1.0.alpha)
-      activestorage (= 7.1.0.alpha)
-      activesupport (= 7.1.0.alpha)
-      globalid (>= 0.6.0)
-      nokogiri (>= 1.8.5)
-    actionview (7.1.0.alpha)
-      activesupport (= 7.1.0.alpha)
-      builder (~> 3.1)
-      erubi (~> 1.11)
-      rails-dom-testing (~> 2.0)
-      rails-html-sanitizer (~> 1.1, >= 1.2.0)
-    activejob (7.1.0.alpha)
-      activesupport (= 7.1.0.alpha)
-      globalid (>= 0.3.6)
     activemodel (7.1.0.alpha)
       activesupport (= 7.1.0.alpha)
     activerecord (7.1.0.alpha)
       activemodel (= 7.1.0.alpha)
       activesupport (= 7.1.0.alpha)
-    activestorage (7.1.0.alpha)
-      actionpack (= 7.1.0.alpha)
-      activejob (= 7.1.0.alpha)
-      activerecord (= 7.1.0.alpha)
-      activesupport (= 7.1.0.alpha)
-      marcel (~> 1.0)
-      mini_mime (>= 1.1.0)
     activesupport (7.1.0.alpha)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       connection_pool (>= 2.2.5)
       i18n (>= 1.6, < 2)
       minitest (>= 5.1)
       tzinfo (~> 2.0)
-    rails (7.1.0.alpha)
-      actioncable (= 7.1.0.alpha)
-      actionmailbox (= 7.1.0.alpha)
-      actionmailer (= 7.1.0.alpha)
-      actionpack (= 7.1.0.alpha)
-      actiontext (= 7.1.0.alpha)
-      actionview (= 7.1.0.alpha)
-      activejob (= 7.1.0.alpha)
-      activemodel (= 7.1.0.alpha)
-      activerecord (= 7.1.0.alpha)
-      activestorage (= 7.1.0.alpha)
-      activesupport (= 7.1.0.alpha)
-      bundler (>= 1.15.0)
-      railties (= 7.1.0.alpha)
-    railties (7.1.0.alpha)
-      actionpack (= 7.1.0.alpha)
-      activesupport (= 7.1.0.alpha)
-      method_source
-      rake (>= 12.2)
-      thor (~> 1.0)
-      zeitwerk (~> 2.6)
 
 PATH
   remote: ..
@@ -107,58 +30,17 @@ GEM
       rake
       thor (>= 0.14.0)
     ast (2.4.2)
-    builder (3.2.4)
+    byebug (11.1.3)
     concurrent-ruby (1.1.10)
     connection_pool (2.2.5)
-    crass (1.0.6)
-    digest (3.1.0)
-    erubi (1.11.0)
-    globalid (1.0.0)
-      activesupport (>= 5.0)
     i18n (1.12.0)
       concurrent-ruby (~> 1.0)
     json (2.6.2)
-    loofah (2.18.0)
-      crass (~> 1.0.2)
-      nokogiri (>= 1.5.9)
-    mail (2.7.1)
-      mini_mime (>= 0.1.1)
-    marcel (1.0.2)
-    method_source (1.0.0)
-    mini_mime (1.1.2)
-    minitest (5.16.2)
-    net-imap (0.2.3)
-      digest
-      net-protocol
-      strscan
-    net-pop (0.1.1)
-      digest
-      net-protocol
-      timeout
-    net-protocol (0.1.3)
-      timeout
-    net-smtp (0.3.1)
-      digest
-      net-protocol
-      timeout
-    nio4r (2.5.8)
-    nokogiri (1.13.8-arm64-darwin)
-      racc (~> 1.4)
-    nokogiri (1.13.8-x86_64-linux)
-      racc (~> 1.4)
+    minitest (5.16.3)
     parallel (1.22.1)
     parser (3.1.2.1)
       ast (~> 2.4.1)
     pg (1.4.3)
-    racc (1.6.0)
-    rack (2.2.4)
-    rack-test (2.0.2)
-      rack (>= 1.3)
-    rails-dom-testing (2.0.3)
-      activesupport (>= 4.2.0)
-      nokogiri (>= 1.6)
-    rails-html-sanitizer (1.4.3)
-      loofah (~> 2.3)
     rainbow (3.1.1)
     rake (13.0.6)
     regexp_parser (2.5.0)
@@ -185,31 +67,23 @@ GEM
       rubocop-performance (= 1.14.3)
     standardrb (1.0.1)
       standard
-    strscan (3.0.4)
     thor (1.2.1)
-    timeout (0.3.0)
     tzinfo (2.0.5)
       concurrent-ruby (~> 1.0)
     unicode-display_width (2.2.0)
-    websocket-driver (0.7.5)
-      websocket-extensions (>= 0.1.0)
-    websocket-extensions (0.1.5)
-    zeitwerk (2.6.0)
 
 PLATFORMS
-  arm64-darwin-21
-  x86_64-linux
+  ruby
+  x86_64-darwin-20
 
 DEPENDENCIES
+  activerecord!
   appraisal
-  net-imap
-  net-pop
-  net-smtp
+  byebug
   pg
-  rails!
   sequenced!
   sqlite3 (~> 1.4.4)
   standardrb
 
 BUNDLED WITH
-   2.3.16
+   2.3.17
diff --git a/lib/sequenced.rb b/lib/sequenced.rb
index f073ea2..3a5df6d 100644
--- a/lib/sequenced.rb
+++ b/lib/sequenced.rb
@@ -1,3 +1,4 @@
+require "active_support"
 require "sequenced/generator"
 require "sequenced/acts_as_sequenced"
 
diff --git a/sequenced.gemspec b/sequenced.gemspec
index 0402348..d80ac1b 100644
--- a/sequenced.gemspec
+++ b/sequenced.gemspec
@@ -15,5 +15,4 @@ Gem::Specification.new do |s|
 
   s.add_dependency "activesupport", ">= 3.0"
   s.add_dependency "activerecord", ">= 3.0"
-  s.add_development_dependency "rails", ">= 3.1"
 end
diff --git a/test/dummy/README.rdoc b/test/dummy/README.rdoc
deleted file mode 100644
index 7c36f23..0000000
--- a/test/dummy/README.rdoc
+++ /dev/null
@@ -1,261 +0,0 @@
-== Welcome to Rails
-
-Rails is a web-application framework that includes everything needed to create
-database-backed web applications according to the Model-View-Control pattern.
-
-This pattern splits the view (also called the presentation) into "dumb"
-templates that are primarily responsible for inserting pre-built data in between
-HTML tags. The model contains the "smart" domain objects (such as Account,
-Product, Person, Post) that holds all the business logic and knows how to
-persist themselves to a database. The controller handles the incoming requests
-(such as Save New Account, Update Product, Show Post) by manipulating the model
-and directing data to the view.
-
-In Rails, the model is handled by what's called an object-relational mapping
-layer entitled Active Record. This layer allows you to present the data from
-database rows as objects and embellish these data objects with business logic
-methods. You can read more about Active Record in
-link:files/vendor/rails/activerecord/README.html.
-
-The controller and view are handled by the Action Pack, which handles both
-layers by its two parts: Action View and Action Controller. These two layers
-are bundled in a single package due to their heavy interdependence. This is
-unlike the relationship between the Active Record and Action Pack that is much
-more separate. Each of these packages can be used independently outside of
-Rails. You can read more about Action Pack in
-link:files/vendor/rails/actionpack/README.html.
-
-
-== Getting Started
-
-1. At the command prompt, create a new Rails application:
-       <tt>rails new myapp</tt> (where <tt>myapp</tt> is the application name)
-
-2. Change directory to <tt>myapp</tt> and start the web server:
-       <tt>cd myapp; rails server</tt> (run with --help for options)
-
-3. Go to http://localhost:3000/ and you'll see:
-       "Welcome aboard: You're riding Ruby on Rails!"
-
-4. Follow the guidelines to start developing your application. You can find
-the following resources handy:
-
-* The Getting Started Guide: http://guides.rubyonrails.org/getting_started.html
-* Ruby on Rails Tutorial Book: http://www.railstutorial.org/
-
-
-== Debugging Rails
-
-Sometimes your application goes wrong. Fortunately there are a lot of tools that
-will help you debug it and get it back on the rails.
-
-First area to check is the application log files. Have "tail -f" commands
-running on the server.log and development.log. Rails will automatically display
-debugging and runtime information to these files. Debugging info will also be
-shown in the browser on requests from 127.0.0.1.
-
-You can also log your own messages directly into the log file from your code
-using the Ruby logger class from inside your controllers. Example:
-
-  class WeblogController < ActionController::Base
-    def destroy
-      @weblog = Weblog.find(params[:id])
-      @weblog.destroy
-      logger.info("#{Time.now} Destroyed Weblog ID ##{@weblog.id}!")
-    end
-  end
-
-The result will be a message in your log file along the lines of:
-
-  Mon Oct 08 14:22:29 +1000 2007 Destroyed Weblog ID #1!
-
-More information on how to use the logger is at http://www.ruby-doc.org/core/
-
-Also, Ruby documentation can be found at http://www.ruby-lang.org/. There are
-several books available online as well:
-
-* Programming Ruby: http://www.ruby-doc.org/docs/ProgrammingRuby/ (Pickaxe)
-* Learn to Program: http://pine.fm/LearnToProgram/ (a beginners guide)
-
-These two books will bring you up to speed on the Ruby language and also on
-programming in general.
-
-
-== Debugger
-
-Debugger support is available through the debugger command when you start your
-Mongrel or WEBrick server with --debugger. This means that you can break out of
-execution at any point in the code, investigate and change the model, and then,
-resume execution! You need to install ruby-debug to run the server in debugging
-mode. With gems, use <tt>sudo gem install ruby-debug</tt>. Example:
-
-  class WeblogController < ActionController::Base
-    def index
-      @posts = Post.all
-      debugger
-    end
-  end
-
-So the controller will accept the action, run the first line, then present you
-with a IRB prompt in the server window. Here you can do things like:
-
-  >> @posts.inspect
-  => "[#<Post:0x14a6be8
-          @attributes={"title"=>nil, "body"=>nil, "id"=>"1"}>,
-       #<Post:0x14a6620
-          @attributes={"title"=>"Rails", "body"=>"Only ten..", "id"=>"2"}>]"
-  >> @posts.first.title = "hello from a debugger"
-  => "hello from a debugger"
-
-...and even better, you can examine how your runtime objects actually work:
-
-  >> f = @posts.first
-  => #<Post:0x13630c4 @attributes={"title"=>nil, "body"=>nil, "id"=>"1"}>
-  >> f.
-  Display all 152 possibilities? (y or n)
-
-Finally, when you're ready to resume execution, you can enter "cont".
-
-
-== Console
-
-The console is a Ruby shell, which allows you to interact with your
-application's domain model. Here you'll have all parts of the application
-configured, just like it is when the application is running. You can inspect
-domain models, change values, and save to the database. Starting the script
-without arguments will launch it in the development environment.
-
-To start the console, run <tt>rails console</tt> from the application
-directory.
-
-Options:
-
-* Passing the <tt>-s, --sandbox</tt> argument will rollback any modifications
-  made to the database.
-* Passing an environment name as an argument will load the corresponding
-  environment. Example: <tt>rails console production</tt>.
-
-To reload your controllers and models after launching the console run
-<tt>reload!</tt>
-
-More information about irb can be found at:
-link:http://www.rubycentral.org/pickaxe/irb.html
-
-
-== dbconsole
-
-You can go to the command line of your database directly through <tt>rails
-dbconsole</tt>. You would be connected to the database with the credentials
-defined in database.yml. Starting the script without arguments will connect you
-to the development database. Passing an argument will connect you to a different
-database, like <tt>rails dbconsole production</tt>. Currently works for MySQL,
-PostgreSQL and SQLite 3.
-
-== Description of Contents
-
-The default directory structure of a generated Ruby on Rails application:
-
-  |-- app
-  |   |-- assets
-  |       |-- images
-  |       |-- javascripts
-  |       `-- stylesheets
-  |   |-- controllers
-  |   |-- helpers
-  |   |-- mailers
-  |   |-- models
-  |   `-- views
-  |       `-- layouts
-  |-- config
-  |   |-- environments
-  |   |-- initializers
-  |   `-- locales
-  |-- db
-  |-- doc
-  |-- lib
-  |   `-- tasks
-  |-- log
-  |-- public
-  |-- script
-  |-- test
-  |   |-- fixtures
-  |   |-- functional
-  |   |-- integration
-  |   |-- performance
-  |   `-- unit
-  |-- tmp
-  |   |-- cache
-  |   |-- pids
-  |   |-- sessions
-  |   `-- sockets
-  `-- vendor
-      |-- assets
-          `-- stylesheets
-      `-- plugins
-
-app
-  Holds all the code that's specific to this particular application.
-
-app/assets
-  Contains subdirectories for images, stylesheets, and JavaScript files.
-
-app/controllers
-  Holds controllers that should be named like weblogs_controller.rb for
-  automated URL mapping. All controllers should descend from
-  ApplicationController which itself descends from ActionController::Base.
-
-app/models
-  Holds models that should be named like post.rb. Models descend from
-  ActiveRecord::Base by default.
-
-app/views
-  Holds the template files for the view that should be named like
-  weblogs/index.html.erb for the WeblogsController#index action. All views use
-  eRuby syntax by default.
-
-app/views/layouts
-  Holds the template files for layouts to be used with views. This models the
-  common header/footer method of wrapping views. In your views, define a layout
-  using the <tt>layout :default</tt> and create a file named default.html.erb.
-  Inside default.html.erb, call <% yield %> to render the view using this
-  layout.
-
-app/helpers
-  Holds view helpers that should be named like weblogs_helper.rb. These are
-  generated for you automatically when using generators for controllers.
-  Helpers can be used to wrap functionality for your views into methods.
-
-config
-  Configuration files for the Rails environment, the routing map, the database,
-  and other dependencies.
-
-db
-  Contains the database schema in schema.rb. db/migrate contains all the
-  sequence of Migrations for your schema.
-
-doc
-  This directory is where your application documentation will be stored when
-  generated using <tt>rake doc:app</tt>
-
-lib
-  Application specific libraries. Basically, any kind of custom code that
-  doesn't belong under controllers, models, or helpers. This directory is in
-  the load path.
-
-public
-  The directory available for the web server. Also contains the dispatchers and the
-  default HTML files. This should be set as the DOCUMENT_ROOT of your web
-  server.
-
-script
-  Helper scripts for automation and generation.
-
-test
-  Unit and functional tests along with fixtures. When using the rails generate
-  command, template test files will be generated for you and placed in this
-  directory.
-
-vendor
-  External libraries that the application depends on. Also includes the plugins
-  subdirectory. If the app has frozen rails, those gems also go here, under
-  vendor/rails/. This directory is in the load path.
diff --git a/test/dummy/Rakefile b/test/dummy/Rakefile
deleted file mode 100644
index 811701a..0000000
--- a/test/dummy/Rakefile
+++ /dev/null
@@ -1,7 +0,0 @@
-#!/usr/bin/env rake
-# 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 File.expand_path("../config/application", __FILE__)
-
-Dummy::Application.load_tasks
diff --git a/test/dummy/app/assets/config/manifest.js b/test/dummy/app/assets/config/manifest.js
deleted file mode 100644
index e69de29..0000000
diff --git a/test/dummy/app/assets/javascripts/application.js b/test/dummy/app/assets/javascripts/application.js
deleted file mode 100644
index 15ebed9..0000000
--- a/test/dummy/app/assets/javascripts/application.js
+++ /dev/null
@@ -1,13 +0,0 @@
-// This is a manifest file that'll be compiled into application.js, which will include all the files
-// listed below.
-//
-// Any JavaScript/Coffee file within this directory, lib/assets/javascripts, vendor/assets/javascripts,
-// or vendor/assets/javascripts of plugins, if any, can be referenced here using a relative path.
-//
-// It's not advisable to add code directly here, but if you do, it'll appear at the bottom of the
-// the compiled file.
-//
-// WARNING: THE FIRST BLANK LINE MARKS THE END OF WHAT'S TO BE PROCESSED, ANY BLANK LINE SHOULD
-// GO AFTER THE REQUIRES BELOW.
-//
-//= require_tree .
diff --git a/test/dummy/app/assets/stylesheets/application.css b/test/dummy/app/assets/stylesheets/application.css
deleted file mode 100644
index 3b5cc66..0000000
--- a/test/dummy/app/assets/stylesheets/application.css
+++ /dev/null
@@ -1,13 +0,0 @@
-/*
- * 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, vendor/assets/stylesheets,
- * or vendor/assets/stylesheets of plugins, if any, 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 top of the
- * compiled file, but it's generally better to create a new file per style scope.
- *
- *= require_self
- *= require_tree .
-*/
diff --git a/test/dummy/app/controllers/application_controller.rb b/test/dummy/app/controllers/application_controller.rb
deleted file mode 100644
index e8065d9..0000000
--- a/test/dummy/app/controllers/application_controller.rb
+++ /dev/null
@@ -1,3 +0,0 @@
-class ApplicationController < ActionController::Base
-  protect_from_forgery
-end
diff --git a/test/dummy/app/helpers/application_helper.rb b/test/dummy/app/helpers/application_helper.rb
deleted file mode 100644
index de6be79..0000000
--- a/test/dummy/app/helpers/application_helper.rb
+++ /dev/null
@@ -1,2 +0,0 @@
-module ApplicationHelper
-end
diff --git a/test/dummy/app/mailers/.gitkeep b/test/dummy/app/mailers/.gitkeep
deleted file mode 100644
index e69de29..0000000
diff --git a/test/dummy/app/models/.gitkeep b/test/dummy/app/models/.gitkeep
deleted file mode 100644
index e69de29..0000000
diff --git a/test/dummy/app/models/account.rb b/test/dummy/app/models/account.rb
deleted file mode 100644
index edbaf8f..0000000
--- a/test/dummy/app/models/account.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-class Account < ActiveRecord::Base
-  has_many :users
-  has_many :invoices
-  has_many :orders
-  has_many :addresses
-end
diff --git a/test/dummy/app/models/address.rb b/test/dummy/app/models/address.rb
deleted file mode 100644
index a07ca3d..0000000
--- a/test/dummy/app/models/address.rb
+++ /dev/null
@@ -1,4 +0,0 @@
-class Address < ActiveRecord::Base
-  belongs_to :account
-  acts_as_sequenced scope: :account_id
-end
diff --git a/test/dummy/app/models/answer.rb b/test/dummy/app/models/answer.rb
deleted file mode 100644
index 0796f91..0000000
--- a/test/dummy/app/models/answer.rb
+++ /dev/null
@@ -1,4 +0,0 @@
-class Answer < ActiveRecord::Base
-  belongs_to :question
-  acts_as_sequenced scope: :question_id
-end
diff --git a/test/dummy/app/models/comment.rb b/test/dummy/app/models/comment.rb
deleted file mode 100644
index 3e62e5d..0000000
--- a/test/dummy/app/models/comment.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-class Comment < ActiveRecord::Base
-  belongs_to :question
-  acts_as_sequenced scope: :question_id
-
-  def self.default_scope
-    order("question_id ASC")
-  end
-end
diff --git a/test/dummy/app/models/concurrent_badger.rb b/test/dummy/app/models/concurrent_badger.rb
deleted file mode 100644
index 075fcfc..0000000
--- a/test/dummy/app/models/concurrent_badger.rb
+++ /dev/null
@@ -1,3 +0,0 @@
-class ConcurrentBadger < ActiveRecord::Base
-  acts_as_sequenced scope: :burrow_id
-end
diff --git a/test/dummy/app/models/doppelganger.rb b/test/dummy/app/models/doppelganger.rb
deleted file mode 100644
index 2cf02e2..0000000
--- a/test/dummy/app/models/doppelganger.rb
+++ /dev/null
@@ -1,4 +0,0 @@
-class Doppelganger < ActiveRecord::Base
-  acts_as_sequenced column: :sequential_id_one
-  acts_as_sequenced column: :sequential_id_two, start_at: 1000
-end
diff --git a/test/dummy/app/models/email.rb b/test/dummy/app/models/email.rb
deleted file mode 100644
index 5bbbcb0..0000000
--- a/test/dummy/app/models/email.rb
+++ /dev/null
@@ -1,4 +0,0 @@
-class Email < ActiveRecord::Base
-  belongs_to :emailable, polymorphic: true
-  acts_as_sequenced scope: [:emailable_id, :emailable_type]
-end
diff --git a/test/dummy/app/models/invoice.rb b/test/dummy/app/models/invoice.rb
deleted file mode 100644
index 1a8080d..0000000
--- a/test/dummy/app/models/invoice.rb
+++ /dev/null
@@ -1,4 +0,0 @@
-class Invoice < ActiveRecord::Base
-  belongs_to :account
-  acts_as_sequenced scope: :account_id, start_at: 1000
-end
diff --git a/test/dummy/app/models/monster.rb b/test/dummy/app/models/monster.rb
deleted file mode 100644
index e28f7fe..0000000
--- a/test/dummy/app/models/monster.rb
+++ /dev/null
@@ -1,3 +0,0 @@
-class Monster < ActiveRecord::Base
-  acts_as_sequenced
-end
diff --git a/test/dummy/app/models/order.rb b/test/dummy/app/models/order.rb
deleted file mode 100644
index 57fbde7..0000000
--- a/test/dummy/app/models/order.rb
+++ /dev/null
@@ -1,4 +0,0 @@
-class Order < ActiveRecord::Base
-  belongs_to :account
-  acts_as_sequenced scope: :non_existent_column
-end
diff --git a/test/dummy/app/models/policeman.rb b/test/dummy/app/models/policeman.rb
deleted file mode 100644
index 01062db..0000000
--- a/test/dummy/app/models/policeman.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class Policeman < ActiveRecord::Base
-  acts_as_sequenced
-
-  validates :sequential_id, presence: true
-end
diff --git a/test/dummy/app/models/product.rb b/test/dummy/app/models/product.rb
deleted file mode 100644
index 7a32ec2..0000000
--- a/test/dummy/app/models/product.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-class Product < ActiveRecord::Base
-  belongs_to :account
-  acts_as_sequenced scope: :account_id, start_at: lambda { |r| r.computed_start_value }
-
-  def computed_start_value
-    1 + 2
-  end
-end
diff --git a/test/dummy/app/models/question.rb b/test/dummy/app/models/question.rb
deleted file mode 100644
index b7d9c07..0000000
--- a/test/dummy/app/models/question.rb
+++ /dev/null
@@ -1,4 +0,0 @@
-class Question < ActiveRecord::Base
-  has_many :answers
-  has_many :comments
-end
diff --git a/test/dummy/app/models/rating.rb b/test/dummy/app/models/rating.rb
deleted file mode 100644
index 24c493b..0000000
--- a/test/dummy/app/models/rating.rb
+++ /dev/null
@@ -1,3 +0,0 @@
-class Rating < ActiveRecord::Base
-  acts_as_sequenced scope: :comment_id, skip: lambda { |r| r.score == 0 }
-end
diff --git a/test/dummy/app/models/subscription.rb b/test/dummy/app/models/subscription.rb
deleted file mode 100644
index e4c3a10..0000000
--- a/test/dummy/app/models/subscription.rb
+++ /dev/null
@@ -1,3 +0,0 @@
-class Subscription < ActiveRecord::Base
-  acts_as_sequenced
-end
diff --git a/test/dummy/app/models/user.rb b/test/dummy/app/models/user.rb
deleted file mode 100644
index 7fc1ef4..0000000
--- a/test/dummy/app/models/user.rb
+++ /dev/null
@@ -1,4 +0,0 @@
-class User < ActiveRecord::Base
-  belongs_to :account
-  acts_as_sequenced scope: :account_id, column: :custom_sequential_id
-end
diff --git a/test/dummy/app/models/werewolf.rb b/test/dummy/app/models/werewolf.rb
deleted file mode 100644
index 959896b..0000000
--- a/test/dummy/app/models/werewolf.rb
+++ /dev/null
@@ -1,2 +0,0 @@
-class Werewolf < Monster
-end
diff --git a/test/dummy/app/models/with_custom_primary_key.rb b/test/dummy/app/models/with_custom_primary_key.rb
deleted file mode 100644
index ba01851..0000000
--- a/test/dummy/app/models/with_custom_primary_key.rb
+++ /dev/null
@@ -1,6 +0,0 @@
-class WithCustomPrimaryKey < ActiveRecord::Base
-  self.primary_key = :legacy_id
-
-  belongs_to :account
-  acts_as_sequenced scope: :account_id
-end
diff --git a/test/dummy/app/models/zombie.rb b/test/dummy/app/models/zombie.rb
deleted file mode 100644
index e3bd9c7..0000000
--- a/test/dummy/app/models/zombie.rb
+++ /dev/null
@@ -1,2 +0,0 @@
-class Zombie < Monster
-end
diff --git a/test/dummy/app/views/layouts/application.html.erb b/test/dummy/app/views/layouts/application.html.erb
deleted file mode 100644
index 4cab268..0000000
--- a/test/dummy/app/views/layouts/application.html.erb
+++ /dev/null
@@ -1,14 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-  <title>Dummy</title>
-  <%= stylesheet_link_tag    "application", :media => "all" %>
-  <%= javascript_include_tag "application" %>
-  <%= csrf_meta_tags %>
-</head>
-<body>
-
-<%= yield %>
-
-</body>
-</html>
diff --git a/test/dummy/config.ru b/test/dummy/config.ru
deleted file mode 100644
index 08dd501..0000000
--- a/test/dummy/config.ru
+++ /dev/null
@@ -1,4 +0,0 @@
-# This file is used by Rack-based servers to start the application.
-
-require ::File.expand_path("../config/environment", __FILE__)
-run Dummy::Application
diff --git a/test/dummy/config/application.rb b/test/dummy/config/application.rb
deleted file mode 100644
index 54abc71..0000000
--- a/test/dummy/config/application.rb
+++ /dev/null
@@ -1,43 +0,0 @@
-require File.expand_path("../boot", __FILE__)
-
-require "rails/all"
-
-Bundler.require
-require "sequenced"
-
-module Dummy
-  class Application < Rails::Application
-    # Settings in config/environments/* take precedence over those specified here.
-    # Application configuration should go into files in config/initializers
-    # -- all .rb files in that directory are automatically loaded.
-
-    # Custom directories with classes and modules you want to be autoloadable.
-    # config.autoload_paths += %W(#{config.root}/extras)
-
-    # Only load the plugins named here, in the order given (default is alphabetical).
-    # :all can be used as a placeholder for all plugins not explicitly named.
-    # config.plugins = [ :exception_notification, :ssl_requirement, :all ]
-
-    # Activate observers that should always be running.
-    # config.active_record.observers = :cacher, :garbage_collector, :forum_observer
-
-    # Set Time.zone default to the specified zone and make Active Record auto-convert to this zone.
-    # Run "rake -D time" for a list of tasks for finding time zone names. Default is UTC.
-    # config.time_zone = 'Central Time (US & Canada)'
-
-    # The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded.
-    # config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}').to_s]
-    # config.i18n.default_locale = :de
-
-    # Use SQL instead of Active Record's schema dumper when creating the database.
-    # This is necessary if your schema can't be completely dumped by the schema dumper,
-    # like if you have constraints or database-specific column types
-    # config.active_record.schema_format = :sql
-
-    # Enforce whitelist mode for mass assignment.
-    # This will create an empty whitelist of attributes available for mass-assignment for all models
-    # in your app. As such, your models will need to explicitly whitelist or blacklist accessible
-    # parameters by using an attr_accessible or attr_protected declaration.
-    # config.active_record.whitelist_attributes = true
-  end
-end
diff --git a/test/dummy/config/boot.rb b/test/dummy/config/boot.rb
deleted file mode 100644
index 122ff3c..0000000
--- a/test/dummy/config/boot.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-require "rubygems"
-gemfile = File.expand_path("../../../../Gemfile", __FILE__)
-
-if File.exist?(gemfile)
-  ENV["BUNDLE_GEMFILE"] = gemfile
-  require "bundler"
-  Bundler.setup
-end
-
-$:.unshift File.expand_path("../../../../lib", __FILE__)
diff --git a/test/dummy/config/database.yml b/test/dummy/config/database.yml
deleted file mode 100644
index 0f358e0..0000000
--- a/test/dummy/config/database.yml
+++ /dev/null
@@ -1,25 +0,0 @@
-# example_travisci_multi/config/database.yml
-sqlite:
-  adapter: sqlite3
-  database: db/test.sqlite3
-
-mysql:
-  adapter: mysql2
-  username: root
-  password:
-
-postgresql:
-  adapter: postgresql
-  username: postgres
-  password:
-  min_messages: ERROR
-
-development:
-  database: sequenced_test
-  adapter: sqlite3
-  database: db/development.sqlite3
-
-test:
-  database: sequenced_test
-  adapter: sqlite3
-  database: db/test.sqlite3
diff --git a/test/dummy/config/environment.rb b/test/dummy/config/environment.rb
deleted file mode 100644
index c956c8a..0000000
--- a/test/dummy/config/environment.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-# Load the rails application
-require File.expand_path("../application", __FILE__)
-
-# Initialize the rails application
-Dummy::Application.initialize!
diff --git a/test/dummy/config/environments/development.rb b/test/dummy/config/environments/development.rb
deleted file mode 100644
index b8e5d31..0000000
--- a/test/dummy/config/environments/development.rb
+++ /dev/null
@@ -1,33 +0,0 @@
-Dummy::Application.configure do
-  # Settings specified here will take precedence over those in config/application.rb
-
-  # In the development environment your application's code is reloaded on
-  # every request. This slows down response time but is perfect for development
-  # since you don't have to restart the web server when you make code changes.
-  config.cache_classes = false
-
-  # Log error messages when you accidentally call methods on nil.
-  config.whiny_nils = true
-
-  # Show full error reports and disable caching
-  config.consider_all_requests_local = true
-  config.action_controller.perform_caching = false
-
-  # Don't care if the mailer can't send
-  config.action_mailer.raise_delivery_errors = false
-
-  # Print deprecation notices to the Rails logger
-  config.active_support.deprecation = :log
-
-  # Only use best-standards-support built into browsers
-  config.action_dispatch.best_standards_support = :builtin
-
-  # Do not compress assets
-  config.assets.compress = false
-
-  # Expands the lines which load the assets
-  config.assets.debug = true
-
-  # Required for Rails >= 4.2
-  config.eager_load = true
-end
diff --git a/test/dummy/config/environments/production.rb b/test/dummy/config/environments/production.rb
deleted file mode 100644
index 2c0ce70..0000000
--- a/test/dummy/config/environments/production.rb
+++ /dev/null
@@ -1,67 +0,0 @@
-Dummy::Application.configure do
-  # Settings specified here will take precedence over those in config/application.rb
-
-  # Code is not reloaded between requests
-  config.cache_classes = true
-
-  # Full error reports are disabled and caching is turned on
-  config.consider_all_requests_local = false
-  config.action_controller.perform_caching = true
-
-  # Disable Rails's static asset server (Apache or nginx will already do this)
-  config.serve_static_files = false
-
-  # Compress JavaScripts and CSS
-  config.assets.compress = true
-
-  # Don't fallback to assets pipeline if a precompiled asset is missed
-  config.assets.compile = false
-
-  # Generate digests for assets URLs
-  config.assets.digest = true
-
-  # Defaults to Rails.root.join("public/assets")
-  # config.assets.manifest = YOUR_PATH
-
-  # Specifies the header that your server uses for sending files
-  # config.action_dispatch.x_sendfile_header = "X-Sendfile" # for apache
-  # config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for nginx
-
-  # Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
-  # config.force_ssl = true
-
-  # See everything in the log (default is :info)
-  # config.log_level = :debug
-
-  # Prepend all log lines with the following tags
-  # config.log_tags = [ :subdomain, :uuid ]
-
-  # Use a different logger for distributed setups
-  # config.logger = ActiveSupport::TaggedLogging.new(SyslogLogger.new)
-
-  # Use a different cache store in production
-  # config.cache_store = :mem_cache_store
-
-  # Enable serving of images, stylesheets, and JavaScripts from an asset server
-  # config.action_controller.asset_host = "http://assets.example.com"
-
-  # Precompile additional assets (application.js, application.css, and all non-JS/CSS are already added)
-  # config.assets.precompile += %w( search.js )
-
-  # Disable delivery errors, bad email addresses will be ignored
-  # config.action_mailer.raise_delivery_errors = false
-
-  # Enable threaded mode
-  # config.threadsafe!
-
-  # Enable locale fallbacks for I18n (makes lookups for any locale fall back to
-  # the I18n.default_locale when a translation can not be found)
-  config.i18n.fallbacks = true
-
-  # Send deprecation notices to registered listeners
-  config.active_support.deprecation = :notify
-
-  # Log the query plan for queries taking more than this (works
-  # with SQLite, MySQL, and PostgreSQL)
-  # config.active_record.auto_explain_threshold_in_seconds = 0.5
-end
diff --git a/test/dummy/config/environments/test.rb b/test/dummy/config/environments/test.rb
deleted file mode 100644
index 0be34f6..0000000
--- a/test/dummy/config/environments/test.rb
+++ /dev/null
@@ -1,43 +0,0 @@
-Dummy::Application.configure do
-  # Settings specified here will take precedence over those in config/application.rb
-  config.eager_load = false
-
-  # The test environment is used exclusively to run your application's
-  # test suite. You never need to work with it otherwise. Remember that
-  # your test database is "scratch space" for the test suite and is wiped
-  # and recreated between test runs. Don't rely on the data there!
-  config.cache_classes = true
-
-  # Configure static asset server for tests with Cache-Control for performance
-  config.serve_static_files = true
-  config.static_cache_control = "public, max-age=3600"
-
-  # Log error messages when you accidentally call methods on nil
-  config.whiny_nils = true
-
-  # Show full error reports and disable caching
-  config.consider_all_requests_local = true
-  config.action_controller.perform_caching = false
-
-  # Raise exceptions instead of rendering exception templates
-  config.action_dispatch.show_exceptions = false
-
-  # Disable request forgery protection in test environment
-  config.action_controller.allow_forgery_protection = false
-
-  # Tell Action Mailer not to deliver emails to the real world.
-  # The :test delivery method accumulates sent emails in the
-  # ActionMailer::Base.deliveries array.
-  config.action_mailer.delivery_method = :test
-
-  # Raise exception on mass assignment protection for Active Record models
-  # config.active_record.mass_assignment_sanitizer = :strict
-
-  # Print deprecation notices to the stderr
-  config.active_support.deprecation = :stderr
-
-  # Required for Rails >= 4.2
-  config.eager_load = true
-
-  config.active_support.test_order = :random
-end
diff --git a/test/dummy/config/initializers/backtrace_silencers.rb b/test/dummy/config/initializers/backtrace_silencers.rb
deleted file mode 100644
index 59385cd..0000000
--- a/test/dummy/config/initializers/backtrace_silencers.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-# Be sure to restart your server when you modify this file.
-
-# You can add backtrace silencers for libraries that you're using but don't wish to see in your backtraces.
-# Rails.backtrace_cleaner.add_silencer { |line| line =~ /my_noisy_library/ }
-
-# You can also remove all the silencers if you're trying to debug a problem that might stem from framework code.
-# Rails.backtrace_cleaner.remove_silencers!
diff --git a/test/dummy/config/initializers/inflections.rb b/test/dummy/config/initializers/inflections.rb
deleted file mode 100644
index 5d8d9be..0000000
--- a/test/dummy/config/initializers/inflections.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-# Be sure to restart your server when you modify this file.
-
-# Add new inflection rules using the following format
-# (all these examples are active by default):
-# ActiveSupport::Inflector.inflections do |inflect|
-#   inflect.plural /^(ox)$/i, '\1en'
-#   inflect.singular /^(ox)en/i, '\1'
-#   inflect.irregular 'person', 'people'
-#   inflect.uncountable %w( fish sheep )
-# end
-#
-# These inflection rules are supported but not enabled by default:
-# ActiveSupport::Inflector.inflections do |inflect|
-#   inflect.acronym 'RESTful'
-# end
diff --git a/test/dummy/config/initializers/mime_types.rb b/test/dummy/config/initializers/mime_types.rb
deleted file mode 100644
index 72aca7e..0000000
--- a/test/dummy/config/initializers/mime_types.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-# Be sure to restart your server when you modify this file.
-
-# Add new mime types for use in respond_to blocks:
-# Mime::Type.register "text/richtext", :rtf
-# Mime::Type.register_alias "text/html", :iphone
diff --git a/test/dummy/config/initializers/secret_token.rb b/test/dummy/config/initializers/secret_token.rb
deleted file mode 100644
index cca5d7e..0000000
--- a/test/dummy/config/initializers/secret_token.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-# Be sure to restart your server when you modify this file.
-
-# Your secret key for verifying the integrity of signed cookies.
-# If you change this key, all old signed cookies will become invalid!
-# Make sure the secret is at least 30 characters and all random,
-# no regular words or you'll be exposed to dictionary attacks.
-Dummy::Application.config.secret_token = "f5ba9bf1480dae7bd30f8eb0c2decd356dd427e7d8ee82c5418e1998cc4115c6ba626ceb15f70feb1d14ecb55e9727497b96b122e2a6099170ea5c45ce2279e3"
diff --git a/test/dummy/config/initializers/session_store.rb b/test/dummy/config/initializers/session_store.rb
deleted file mode 100644
index 7fef319..0000000
--- a/test/dummy/config/initializers/session_store.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-# Be sure to restart your server when you modify this file.
-
-Dummy::Application.config.session_store :cookie_store, key: "_dummy_session"
-
-# Use the database for sessions instead of the cookie-based default,
-# which shouldn't be used to store highly confidential information
-# (create the session table with "rails generate session_migration")
-# Dummy::Application.config.session_store :active_record_store
diff --git a/test/dummy/config/initializers/wrap_parameters.rb b/test/dummy/config/initializers/wrap_parameters.rb
deleted file mode 100644
index 999df20..0000000
--- a/test/dummy/config/initializers/wrap_parameters.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-# Be sure to restart your server when you modify this file.
-#
-# This file contains settings for ActionController::ParamsWrapper which
-# is enabled by default.
-
-# Enable parameter wrapping for JSON. You can disable this by setting :format to an empty array.
-ActiveSupport.on_load(:action_controller) do
-  wrap_parameters format: [:json]
-end
-
-# Disable root element in JSON by default.
-ActiveSupport.on_load(:active_record) do
-  self.include_root_in_json = false
-end
diff --git a/test/dummy/config/locales/en.yml b/test/dummy/config/locales/en.yml
deleted file mode 100644
index 179c14c..0000000
--- a/test/dummy/config/locales/en.yml
+++ /dev/null
@@ -1,5 +0,0 @@
-# Sample localization file for English. Add more files in this directory for other locales.
-# See https://github.com/svenfuchs/rails-i18n/tree/master/rails%2Flocale for starting points.
-
-en:
-  hello: "Hello world"
diff --git a/test/dummy/config/routes.rb b/test/dummy/config/routes.rb
deleted file mode 100644
index eb8579b..0000000
--- a/test/dummy/config/routes.rb
+++ /dev/null
@@ -1,58 +0,0 @@
-Dummy::Application.routes.draw do
-  # The priority is based upon order of creation:
-  # first created -> highest priority.
-
-  # Sample of regular route:
-  #   match 'products/:id' => 'catalog#view'
-  # Keep in mind you can assign values other than :controller and :action
-
-  # Sample of named route:
-  #   match 'products/:id/purchase' => 'catalog#purchase', :as => :purchase
-  # This route can be invoked with purchase_url(:id => product.id)
-
-  # Sample resource route (maps HTTP verbs to controller actions automatically):
-  #   resources :products
-
-  # Sample resource route with options:
-  #   resources :products do
-  #     member do
-  #       get 'short'
-  #       post 'toggle'
-  #     end
-  #
-  #     collection do
-  #       get 'sold'
-  #     end
-  #   end
-
-  # Sample resource route with sub-resources:
-  #   resources :products do
-  #     resources :comments, :sales
-  #     resource :seller
-  #   end
-
-  # Sample resource route with more complex sub-resources
-  #   resources :products do
-  #     resources :comments
-  #     resources :sales do
-  #       get 'recent', :on => :collection
-  #     end
-  #   end
-
-  # Sample resource route within a namespace:
-  #   namespace :admin do
-  #     # Directs /admin/products/* to Admin::ProductsController
-  #     # (app/controllers/admin/products_controller.rb)
-  #     resources :products
-  #   end
-
-  # You can have the root of your site routed with "root"
-  # just remember to delete public/index.html.
-  # root :to => 'welcome#index'
-
-  # See how all your routes lay out with "rake routes"
-
-  # This is a legacy wild controller route that's not recommended for RESTful applications.
-  # Note: This route will make all actions in every controller accessible via GET requests.
-  # match ':controller(/:action(/:id))(.:format)'
-end
diff --git a/test/dummy/config/storage.yml b/test/dummy/config/storage.yml
deleted file mode 100644
index e69de29..0000000
diff --git a/test/dummy/db/migrate/20120219165346_create_questions.rb b/test/dummy/db/migrate/20120219165346_create_questions.rb
deleted file mode 100644
index 5caad9c..0000000
--- a/test/dummy/db/migrate/20120219165346_create_questions.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-class CreateQuestions < ActiveRecord::Migration[4.2]
-  def change
-    create_table :questions do |t|
-      t.string :summary
-      t.text :body
-
-      t.timestamps
-    end
-  end
-end
diff --git a/test/dummy/db/migrate/20120219165548_create_answers.rb b/test/dummy/db/migrate/20120219165548_create_answers.rb
deleted file mode 100644
index 288f736..0000000
--- a/test/dummy/db/migrate/20120219165548_create_answers.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-class CreateAnswers < ActiveRecord::Migration[4.2]
-  def change
-    create_table :answers do |t|
-      t.references :question
-      t.text :body
-      t.integer :sequential_id
-
-      t.timestamps
-    end
-    add_index :answers, :question_id
-    add_index :answers, :sequential_id
-  end
-end
diff --git a/test/dummy/db/migrate/20120219171957_create_accounts.rb b/test/dummy/db/migrate/20120219171957_create_accounts.rb
deleted file mode 100644
index 18fdda9..0000000
--- a/test/dummy/db/migrate/20120219171957_create_accounts.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class CreateAccounts < ActiveRecord::Migration[4.2]
-  def change
-    create_table :accounts do |t|
-      t.string :name
-
-      t.timestamps
-    end
-  end
-end
diff --git a/test/dummy/db/migrate/20120219172039_create_invoices.rb b/test/dummy/db/migrate/20120219172039_create_invoices.rb
deleted file mode 100644
index a0d709f..0000000
--- a/test/dummy/db/migrate/20120219172039_create_invoices.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-class CreateInvoices < ActiveRecord::Migration[4.2]
-  def change
-    create_table :invoices do |t|
-      t.integer :amount
-      t.integer :sequential_id
-      t.references :account
-
-      t.timestamps
-    end
-    add_index :invoices, :account_id
-  end
-end
diff --git a/test/dummy/db/migrate/20120219172922_create_orders.rb b/test/dummy/db/migrate/20120219172922_create_orders.rb
deleted file mode 100644
index e1ffcdf..0000000
--- a/test/dummy/db/migrate/20120219172922_create_orders.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-class CreateOrders < ActiveRecord::Migration[4.2]
-  def change
-    create_table :orders do |t|
-      t.string :product
-      t.references :account
-
-      t.timestamps
-    end
-  end
-end
diff --git a/test/dummy/db/migrate/20120219174931_create_subscriptions.rb b/test/dummy/db/migrate/20120219174931_create_subscriptions.rb
deleted file mode 100644
index fbd4353..0000000
--- a/test/dummy/db/migrate/20120219174931_create_subscriptions.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-class CreateSubscriptions < ActiveRecord::Migration[4.2]
-  def change
-    create_table :subscriptions do |t|
-      t.string :plan
-      t.integer :sequential_id
-
-      t.timestamps
-    end
-  end
-end
diff --git a/test/dummy/db/migrate/20120219175744_create_users.rb b/test/dummy/db/migrate/20120219175744_create_users.rb
deleted file mode 100644
index fbad15a..0000000
--- a/test/dummy/db/migrate/20120219175744_create_users.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-class CreateUsers < ActiveRecord::Migration[4.2]
-  def change
-    create_table :users do |t|
-      t.references :account
-      t.string :name
-      t.integer :custom_sequential_id
-
-      t.timestamps
-    end
-    add_index :users, :account_id
-  end
-end
diff --git a/test/dummy/db/migrate/20120219232323_create_addresses.rb b/test/dummy/db/migrate/20120219232323_create_addresses.rb
deleted file mode 100644
index 2883f67..0000000
--- a/test/dummy/db/migrate/20120219232323_create_addresses.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class CreateAddresses < ActiveRecord::Migration[4.2]
-  def change
-    create_table :addresses do |t|
-      t.references :account
-      t.string :city
-      t.timestamps
-    end
-  end
-end
diff --git a/test/dummy/db/migrate/20120220000804_create_comments.rb b/test/dummy/db/migrate/20120220000804_create_comments.rb
deleted file mode 100644
index a8b8c04..0000000
--- a/test/dummy/db/migrate/20120220000804_create_comments.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-class CreateComments < ActiveRecord::Migration[4.2]
-  def change
-    create_table :comments do |t|
-      t.references :question
-      t.text :body
-      t.integer :sequential_id
-
-      t.timestamps
-    end
-    add_index :comments, :question_id
-  end
-end
diff --git a/test/dummy/db/migrate/20130411225444_create_emails.rb b/test/dummy/db/migrate/20130411225444_create_emails.rb
deleted file mode 100644
index 522ee90..0000000
--- a/test/dummy/db/migrate/20130411225444_create_emails.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-class CreateEmails < ActiveRecord::Migration[4.2]
-  def change
-    create_table :emails do |t|
-      t.string :emailable_type
-      t.integer :emailable_id
-      t.integer :sequential_id
-      t.string :address
-
-      t.timestamps
-    end
-  end
-end
diff --git a/test/dummy/db/migrate/20130715002029_create_ratings.rb b/test/dummy/db/migrate/20130715002029_create_ratings.rb
deleted file mode 100644
index 767fad6..0000000
--- a/test/dummy/db/migrate/20130715002029_create_ratings.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-class CreateRatings < ActiveRecord::Migration[4.2]
-  def change
-    create_table :ratings do |t|
-      t.references :comment
-      t.integer :score
-      t.integer :sequential_id
-      t.timestamps
-    end
-  end
-end
diff --git a/test/dummy/db/migrate/20130730004055_create_products.rb b/test/dummy/db/migrate/20130730004055_create_products.rb
deleted file mode 100644
index 653b9e2..0000000
--- a/test/dummy/db/migrate/20130730004055_create_products.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class CreateProducts < ActiveRecord::Migration[4.2]
-  def change
-    create_table :products do |t|
-      t.references :account
-      t.integer :sequential_id
-      t.timestamps
-    end
-  end
-end
diff --git a/test/dummy/db/migrate/20131226000000_create_monsters.rb b/test/dummy/db/migrate/20131226000000_create_monsters.rb
deleted file mode 100644
index 28293e0..0000000
--- a/test/dummy/db/migrate/20131226000000_create_monsters.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class CreateMonsters < ActiveRecord::Migration[4.2]
-  def change
-    create_table :monsters do |t|
-      t.integer :sequential_id
-      t.string :type
-      t.timestamps
-    end
-  end
-end
diff --git a/test/dummy/db/migrate/20140404195334_create_policemen.rb b/test/dummy/db/migrate/20140404195334_create_policemen.rb
deleted file mode 100644
index fb53e59..0000000
--- a/test/dummy/db/migrate/20140404195334_create_policemen.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class CreatePolicemen < ActiveRecord::Migration[4.2]
-  def change
-    create_table :policemen do |t|
-      t.integer :sequential_id
-
-      t.timestamps
-    end
-  end
-end
diff --git a/test/dummy/db/migrate/20151120190645_create_concurrent_badgers.rb b/test/dummy/db/migrate/20151120190645_create_concurrent_badgers.rb
deleted file mode 100644
index 26ac53f..0000000
--- a/test/dummy/db/migrate/20151120190645_create_concurrent_badgers.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-class CreateConcurrentBadgers < ActiveRecord::Migration[4.2]
-  def change
-    create_table :concurrent_badgers do |t|
-      t.integer :sequential_id, null: false
-      t.integer :burrow_id
-    end
-
-    add_index :concurrent_badgers, [:sequential_id, :burrow_id], unique: true, name: "unique_concurrent"
-  end
-end
diff --git a/test/dummy/db/migrate/20160118182655_create_doppelgangers.rb b/test/dummy/db/migrate/20160118182655_create_doppelgangers.rb
deleted file mode 100644
index 3c6aff1..0000000
--- a/test/dummy/db/migrate/20160118182655_create_doppelgangers.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-class CreateDoppelgangers < ActiveRecord::Migration[4.2]
-  def change
-    create_table :doppelgangers do |t|
-      t.integer :sequential_id_one
-      t.integer :sequential_id_two
-
-      t.timestamps null: false
-    end
-  end
-end
diff --git a/test/dummy/db/migrate/20190216124804_create_with_custom_primary_key.rb b/test/dummy/db/migrate/20190216124804_create_with_custom_primary_key.rb
deleted file mode 100644
index b7ba672..0000000
--- a/test/dummy/db/migrate/20190216124804_create_with_custom_primary_key.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-class CreateWithCustomPrimaryKey < ActiveRecord::Migration[5.2]
-  def change
-    create_table :with_custom_primary_keys, id: :integer, primary_key: :legacy_id do |t|
-      t.integer :sequential_id
-      t.references :account
-    end
-  end
-end
diff --git a/test/dummy/db/schema.rb b/test/dummy/db/schema.rb
deleted file mode 100644
index b6f85c3..0000000
--- a/test/dummy/db/schema.rb
+++ /dev/null
@@ -1,140 +0,0 @@
-# This file is auto-generated from the current state of the database. Instead
-# of editing this file, please use the migrations feature of Active Record to
-# incrementally modify your database, and then regenerate this schema definition.
-#
-# Note that this schema.rb definition is the authoritative source for your
-# database schema. If you need to create the application database on another
-# system, you should be using db:schema:load, not running all the migrations
-# from scratch. The latter is a flawed and unsustainable approach (the more migrations
-# you'll amass, the slower it'll run and the greater likelihood for issues).
-#
-# It's strongly recommended that you check this file into your version control system.
-
-ActiveRecord::Schema.define(version: 2019_02_16_124804) do
-  create_table "accounts", force: :cascade do |t|
-    t.string "name"
-    t.datetime "created_at"
-    t.datetime "updated_at"
-  end
-
-  create_table "addresses", force: :cascade do |t|
-    t.integer "account_id"
-    t.string "city"
-    t.datetime "created_at"
-    t.datetime "updated_at"
-  end
-
-  create_table "answers", force: :cascade do |t|
-    t.integer "question_id"
-    t.text "body"
-    t.integer "sequential_id"
-    t.datetime "created_at"
-    t.datetime "updated_at"
-    t.index ["question_id"], name: "index_answers_on_question_id"
-    t.index ["sequential_id"], name: "index_answers_on_sequential_id"
-  end
-
-  create_table "comments", force: :cascade do |t|
-    t.integer "question_id"
-    t.text "body"
-    t.integer "sequential_id"
-    t.datetime "created_at"
-    t.datetime "updated_at"
-    t.index ["question_id"], name: "index_comments_on_question_id"
-  end
-
-  create_table "concurrent_badgers", force: :cascade do |t|
-    t.integer "sequential_id", null: false
-    t.integer "burrow_id"
-    t.index ["sequential_id", "burrow_id"], name: "unique_concurrent", unique: true
-  end
-
-  create_table "doppelgangers", force: :cascade do |t|
-    t.integer "sequential_id_one"
-    t.integer "sequential_id_two"
-    t.datetime "created_at", null: false
-    t.datetime "updated_at", null: false
-  end
-
-  create_table "emails", force: :cascade do |t|
-    t.string "emailable_type"
-    t.integer "emailable_id"
-    t.integer "sequential_id"
-    t.string "address"
-    t.datetime "created_at"
-    t.datetime "updated_at"
-  end
-
-  create_table "invoices", force: :cascade do |t|
-    t.integer "amount"
-    t.integer "sequential_id"
-    t.integer "account_id"
-    t.datetime "created_at"
-    t.datetime "updated_at"
-    t.index ["account_id"], name: "index_invoices_on_account_id"
-  end
-
-  create_table "monsters", force: :cascade do |t|
-    t.integer "sequential_id"
-    t.string "type"
-    t.datetime "created_at"
-    t.datetime "updated_at"
-  end
-
-  create_table "orders", force: :cascade do |t|
-    t.string "product"
-    t.integer "account_id"
-    t.datetime "created_at"
-    t.datetime "updated_at"
-  end
-
-  create_table "policemen", force: :cascade do |t|
-    t.integer "sequential_id"
-    t.datetime "created_at"
-    t.datetime "updated_at"
-  end
-
-  create_table "products", force: :cascade do |t|
-    t.integer "account_id"
-    t.integer "sequential_id"
-    t.datetime "created_at"
-    t.datetime "updated_at"
-  end
-
-  create_table "questions", force: :cascade do |t|
-    t.string "summary"
-    t.text "body"
-    t.datetime "created_at"
-    t.datetime "updated_at"
-  end
-
-  create_table "ratings", force: :cascade do |t|
-    t.integer "comment_id"
-    t.integer "score"
-    t.integer "sequential_id"
-    t.datetime "created_at"
-    t.datetime "updated_at"
-  end
-
-  create_table "subscriptions", force: :cascade do |t|
-    t.string "plan"
-    t.integer "sequential_id"
-    t.datetime "created_at"
-    t.datetime "updated_at"
-  end
-
-  create_table "users", force: :cascade do |t|
-    t.integer "account_id"
-    t.string "name"
-    t.integer "custom_sequential_id"
-    t.datetime "created_at"
-    t.datetime "updated_at"
-    t.index ["account_id"], name: "index_users_on_account_id"
-  end
-
-  create_table "with_custom_primary_keys", primary_key: "legacy_id", force: :cascade do |t|
-    t.integer "sequential_id"
-    t.integer "account_id"
-    t.index ["account_id"], name: "index_with_custom_primary_keys_on_account_id"
-  end
-end
diff --git a/test/dummy/lib/assets/.gitkeep b/test/dummy/lib/assets/.gitkeep
deleted file mode 100644
index e69de29..0000000
diff --git a/test/dummy/log/.gitkeep b/test/dummy/log/.gitkeep
deleted file mode 100644
index e69de29..0000000
diff --git a/test/dummy/public/404.html b/test/dummy/public/404.html
deleted file mode 100644
index 9a48320..0000000
--- a/test/dummy/public/404.html
+++ /dev/null
@@ -1,26 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-  <title>The page you were looking for doesn't exist (404)</title>
-  <style type="text/css">
-    body { background-color: #fff; color: #666; text-align: center; font-family: arial, sans-serif; }
-    div.dialog {
-      width: 25em;
-      padding: 0 4em;
-      margin: 4em auto 0 auto;
-      border: 1px solid #ccc;
-      border-right-color: #999;
-      border-bottom-color: #999;
-    }
-    h1 { font-size: 100%; color: #f00; line-height: 1.5em; }
-  </style>
-</head>
-
-<body>
-  <!-- This file lives in public/404.html -->
-  <div class="dialog">
-    <h1>The page you were looking for doesn't exist.</h1>
-    <p>You may have mistyped the address or the page may have moved.</p>
-  </div>
-</body>
-</html>
diff --git a/test/dummy/public/422.html b/test/dummy/public/422.html
deleted file mode 100644
index 83660ab..0000000
--- a/test/dummy/public/422.html
+++ /dev/null
@@ -1,26 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-  <title>The change you wanted was rejected (422)</title>
-  <style type="text/css">
-    body { background-color: #fff; color: #666; text-align: center; font-family: arial, sans-serif; }
-    div.dialog {
-      width: 25em;
-      padding: 0 4em;
-      margin: 4em auto 0 auto;
-      border: 1px solid #ccc;
-      border-right-color: #999;
-      border-bottom-color: #999;
-    }
-    h1 { font-size: 100%; color: #f00; line-height: 1.5em; }
-  </style>
-</head>
-
-<body>
-  <!-- This file lives in public/422.html -->
-  <div class="dialog">
-    <h1>The change you wanted was rejected.</h1>
-    <p>Maybe you tried to change something you didn't have access to.</p>
-  </div>
-</body>
-</html>
diff --git a/test/dummy/public/500.html b/test/dummy/public/500.html
deleted file mode 100644
index f3648a0..0000000
--- a/test/dummy/public/500.html
+++ /dev/null
@@ -1,25 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-  <title>We're sorry, but something went wrong (500)</title>
-  <style type="text/css">
-    body { background-color: #fff; color: #666; text-align: center; font-family: arial, sans-serif; }
-    div.dialog {
-      width: 25em;
-      padding: 0 4em;
-      margin: 4em auto 0 auto;
-      border: 1px solid #ccc;
-      border-right-color: #999;
-      border-bottom-color: #999;
-    }
-    h1 { font-size: 100%; color: #f00; line-height: 1.5em; }
-  </style>
-</head>
-
-<body>
-  <!-- This file lives in public/500.html -->
-  <div class="dialog">
-    <h1>We're sorry, but something went wrong.</h1>
-  </div>
-</body>
-</html>
diff --git a/test/dummy/public/favicon.ico b/test/dummy/public/favicon.ico
deleted file mode 100644
index e69de29..0000000
diff --git a/test/dummy/script/rails b/test/dummy/script/rails
deleted file mode 100755
index 9a5a81d..0000000
--- a/test/dummy/script/rails
+++ /dev/null
@@ -1,6 +0,0 @@
-#!/usr/bin/env ruby
-# This command will automatically be run when you run "rails" with Rails 3 gems installed from the root of your application.
-
-APP_PATH = File.expand_path("../../config/application", __FILE__)
-require File.expand_path("../../config/boot", __FILE__)
-require "rails/commands"
diff --git a/test/multiple_sequences_test.rb b/test/multiple_sequences_test.rb
index 738600e..868bbea 100644
--- a/test/multiple_sequences_test.rb
+++ b/test/multiple_sequences_test.rb
@@ -1,6 +1,10 @@
 require "test_helper"
 
 class MultipleSequencesTest < ActiveSupport::TestCase
+  def teardown
+    Doppelganger.delete_all
+  end
+
   test "works with simple multiple sequences" do
     doppelganger = Doppelganger.create!
     assert_equal 1, doppelganger.sequential_id_one
diff --git a/test/support/database.yml b/test/support/database.yml
new file mode 100644
index 0000000..4e43919
--- /dev/null
+++ b/test/support/database.yml
@@ -0,0 +1,9 @@
+sqlite3:
+  adapter: sqlite3
+  database: test/db.sqlite3
+
+postgresql:
+  adapter: postgresql
+  database: sequenced_test
+  username: postgres
+  password: postgres
diff --git a/test/support/models.rb b/test/support/models.rb
new file mode 100644
index 0000000..02026f4
--- /dev/null
+++ b/test/support/models.rb
@@ -0,0 +1,99 @@
+class Account < ActiveRecord::Base
+  has_many :users
+  has_many :invoices
+  has_many :orders
+  has_many :addresses
+end
+
+class Address < ActiveRecord::Base
+  belongs_to :account
+  acts_as_sequenced scope: :account_id
+end
+
+class Answer < ActiveRecord::Base
+  belongs_to :question
+  acts_as_sequenced scope: :question_id
+end
+
+class Comment < ActiveRecord::Base
+  belongs_to :question
+  acts_as_sequenced scope: :question_id
+
+  def self.default_scope
+    order("question_id ASC")
+  end
+end
+
+class ConcurrentBadger < ActiveRecord::Base
+  acts_as_sequenced scope: :burrow_id
+end
+
+class Doppelganger < ActiveRecord::Base
+  acts_as_sequenced column: :sequential_id_one
+  acts_as_sequenced column: :sequential_id_two, start_at: 1000
+end
+
+class Email < ActiveRecord::Base
+  belongs_to :emailable, polymorphic: true
+  acts_as_sequenced scope: [:emailable_id, :emailable_type]
+end
+
+class Invoice < ActiveRecord::Base
+  belongs_to :account
+  acts_as_sequenced scope: :account_id, start_at: 1000
+end
+
+class Monster < ActiveRecord::Base
+  acts_as_sequenced
+end
+
+class Werewolf < Monster
+end
+
+class Zombie < Monster
+end
+
+class Order < ActiveRecord::Base
+  belongs_to :account
+  acts_as_sequenced scope: :non_existent_column
+end
+
+class Policeman < ActiveRecord::Base
+  acts_as_sequenced
+
+  validates :sequential_id, presence: true
+end
+
+class Product < ActiveRecord::Base
+  belongs_to :account
+  acts_as_sequenced scope: :account_id, start_at: lambda { |r| r.computed_start_value }
+
+  def computed_start_value
+    1 + 2
+  end
+end
+
+class Question < ActiveRecord::Base
+  has_many :answers
+  has_many :comments
+end
+
+class Rating < ActiveRecord::Base
+  acts_as_sequenced scope: :comment_id, skip: lambda { |r| r.score == 0 }
+end
+
+class Subscription < ActiveRecord::Base
+  acts_as_sequenced
+end
+
+class User < ActiveRecord::Base
+  belongs_to :account
+  acts_as_sequenced scope: :account_id, column: :custom_sequential_id
+end
+
+class WithCustomPrimaryKey < ActiveRecord::Base
+  self.primary_key = :legacy_id
+
+  belongs_to :account
+  acts_as_sequenced scope: :account_id
+end
diff --git a/test/support/schema.rb b/test/support/schema.rb
new file mode 100644
index 0000000..e260f89
--- /dev/null
+++ b/test/support/schema.rb
@@ -0,0 +1,94 @@
+ActiveRecord::Schema.define do
+  create_table :questions, force: true do |t|
+    t.string :summary
+    t.text :body
+  end
+
+  create_table :answers, force: true do |t|
+    t.references :question
+    t.text :body
+    t.integer :sequential_id
+    t.index :sequential_id
+  end
+
+  create_table :accounts, force: true do |t|
+    t.string :name
+  end
+
+  create_table :invoices, force: true do |t|
+    t.integer :amount
+    t.integer :sequential_id
+    t.references :account
+  end
+
+  create_table :orders, force: true do |t|
+    t.string :product
+    t.references :account
+  end
+
+  create_table :subscriptions, force: true do |t|
+    t.string :plan
+    t.integer :sequential_id
+  end
+
+  create_table :users, force: true do |t|
+    t.references :account
+    t.string :name
+    t.integer :custom_sequential_id
+  end
+
+  create_table :addresses, force: true do |t|
+    t.references :account
+    t.string :city
+  end
+
+  create_table :comments, force: true do |t|
+    t.references :question
+    t.text :body
+    t.integer :sequential_id
+  end
+
+  create_table :emails, force: true do |t|
+    t.string :emailable_type
+    t.integer :emailable_id
+    t.integer :sequential_id
+    t.string :address
+  end
+
+  create_table :ratings, force: true do |t|
+    t.references :comment
+    t.integer :score
+    t.integer :sequential_id
+  end
+
+  create_table :products, force: true do |t|
+    t.references :account
+    t.integer :sequential_id
+  end
+
+  create_table :monsters, force: true do |t|
+    t.integer :sequential_id
+    t.string :type
+  end
+
+  create_table :policemen, force: true do |t|
+    t.integer :sequential_id
+  end
+
+  create_table :concurrent_badgers, force: true do |t|
+    t.integer :sequential_id, null: false
+    t.integer :burrow_id
+
+    t.index [:sequential_id, :burrow_id], unique: true, name: "unique_concurrent"
+  end
+
+  create_table :doppelgangers, force: true do |t|
+    t.integer :sequential_id_one
+    t.integer :sequential_id_two
+  end
+
+  create_table :with_custom_primary_keys, force: true, id: :integer, primary_key: :legacy_id do |t|
+    t.integer :sequential_id
+    t.references :account
+  end
+end
diff --git a/test/test_helper.rb b/test/test_helper.rb
index 7676726..27dc02c 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -1,18 +1,15 @@
-# Configure Rails Environment
-ENV["RAILS_ENV"] = "test"
-ENV["RAILS_ROOT"] = File.expand_path("../dummy", __FILE__)
+require "bundler/setup"
+Bundler.require(:default)
 
-require File.expand_path("../dummy/config/environment.rb", __FILE__)
-require "rails/test_help"
+require "minitest/autorun"
+require "active_record"
 
-Rails.backtrace_cleaner.remove_silencers!
+adapter = ENV["ADAPTER"].to_sym || :postgresql
+puts "Using #{adapter}"
 
-migrate_path = File.expand_path("../dummy/db/migrate/", __FILE__)
-if Gem::Version.new(Rails::VERSION::STRING) >= Gem::Version.new("6.0")
-  ActiveRecord::MigrationContext.new(migrate_path, ActiveRecord::SchemaMigration).up
-else
-  ActiveRecord::MigrationContext.new(migrate_path).up
-end
+database_yml = File.expand_path("support/database.yml", __dir__)
+ActiveRecord::Base.configurations = YAML.load_file(database_yml)
+ActiveRecord::Base.establish_connection(adapter)
 
-# Load support files
-Dir["#{File.dirname(__FILE__)}/support/**/*.rb"].sort.each { |f| require f }
+require_relative "support/schema"
+require_relative "support/models"