extract database_cleaner-sequel adapter.

Gemfile

@@ -11,4 +11,5 @@ path "./adapters" do
   gem "database_cleaner-neo4j"
   gem "database_cleaner-ohm"
   gem "database_cleaner-redis"
+  gem "database_cleaner-sequel"
 end

Gemfile.lock

@@ -38,6 +38,9 @@ PATH
     database_cleaner-redis (1.8.0)
       database_cleaner (~> 1.8.0)
       redis
+    database_cleaner-sequel (1.8.0)
+      database_cleaner (~> 1.8.0)
+      sequel
 
 GEM
   remote: https://rubygems.org/
@@ -293,6 +296,7 @@ DEPENDENCIES
   database_cleaner-neo4j!
   database_cleaner-ohm!
   database_cleaner-redis!
+  database_cleaner-sequel!
   datamapper
   dm-migrations
   dm-sqlite-adapter

adapters/database_cleaner-sequel/.gitignore

@@ -0,0 +1,13 @@
+/.bundle/
+/.yardoc
+/_yardoc/
+/coverage/
+/doc/
+/pkg/
+/spec/reports/
+/spec/support/config.yml
+/tmp/
+!/tmp/.keep
+
+# rspec failure tracking
+.rspec_status

adapters/database_cleaner-sequel/.rspec

@@ -0,0 +1,3 @@
+--format documentation
+--color
+--require spec_helper

adapters/database_cleaner-sequel/.travis.yml

@@ -0,0 +1,5 @@
+sudo: false
+language: ruby
+rvm:
+  - 2.2.9
+before_install: gem install bundler -v 1.16.1

adapters/database_cleaner-sequel/Gemfile

@@ -0,0 +1,8 @@
+source "https://rubygems.org"
+
+git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
+
+# Specify your gem's dependencies in database_cleaner-sequel.gemspec
+gemspec
+
+gem "database_cleaner", path: "../.."

adapters/database_cleaner-sequel/Gemfile.lock

@@ -0,0 +1,52 @@
+PATH
+  remote: ../..
+  specs:
+    database_cleaner (1.8.0)
+
+PATH
+  remote: .
+  specs:
+    database_cleaner-sequel (1.8.0)
+      database_cleaner (~> 1.8.0)
+      sequel
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    diff-lcs (1.3)
+    mysql (2.9.1)
+    mysql2 (0.3.18)
+    pg (0.18.2)
+    rake (10.4.2)
+    rspec (3.7.0)
+      rspec-core (~> 3.7.0)
+      rspec-expectations (~> 3.7.0)
+      rspec-mocks (~> 3.7.0)
+    rspec-core (3.7.1)
+      rspec-support (~> 3.7.0)
+    rspec-expectations (3.7.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.7.0)
+    rspec-mocks (3.7.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.7.0)
+    rspec-support (3.7.1)
+    sequel (3.21.0)
+    sqlite3 (1.3.10)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  bundler (~> 1.16)
+  database_cleaner!
+  database_cleaner-sequel!
+  mysql (~> 2.9.1)
+  mysql2
+  pg
+  rake (~> 10.0)
+  rspec (~> 3.0)
+  sqlite3
+
+BUNDLED WITH
+   1.16.1

adapters/database_cleaner-sequel/LICENSE.txt

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2009 Ben Mabey
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

adapters/database_cleaner-sequel/README.md

@@ -0,0 +1,39 @@
+# DatabaseCleaner::Sequel
+
+Welcome to your new gem! In this directory, you'll find the files you need to be able to package up your Ruby library into a gem. Put your Ruby code in the file `lib/database_cleaner/sequel`. To experiment with that code, run `bin/console` for an interactive prompt.
+
+TODO: Delete this and the text above, and describe your gem
+
+## Installation
+
+Add this line to your application's Gemfile:
+
+```ruby
+gem 'database_cleaner-sequel'
+```
+
+And then execute:
+
+    $ bundle
+
+Or install it yourself as:
+
+    $ gem install database_cleaner-sequel
+
+## Usage
+
+TODO: Write usage instructions here
+
+## Development
+
+After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake spec` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment.
+
+To install this gem onto your local machine, run `bundle exec rake install`. To release a new version, update the version number in `version.rb`, and then run `bundle exec rake release`, which will create a git tag for the version, push git commits and tags, and push the `.gem` file to [rubygems.org](https://rubygems.org).
+
+## Contributing
+
+Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/database_cleaner-sequel.
+
+## License
+
+The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).

adapters/database_cleaner-sequel/Rakefile

@@ -0,0 +1,6 @@
+require "bundler/gem_tasks"
+require "rspec/core/rake_task"
+
+RSpec::Core::RakeTask.new(:spec)
+
+task :default => :spec

adapters/database_cleaner-sequel/bin/console

@@ -0,0 +1,14 @@
+#!/usr/bin/env ruby
+
+require "bundler/setup"
+require "database_cleaner/sequel"
+
+# You can add fixtures and/or initialization code here to make experimenting
+# with your gem easier. You can also use a different console, if you like.
+
+# (If you use this, don't forget to add pry to your Gemfile!)
+# require "pry"
+# Pry.start
+
+require "irb"
+IRB.start(__FILE__)

adapters/database_cleaner-sequel/bin/setup

@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+set -euo pipefail
+IFS=$'\n\t'
+set -vx
+
+bundle install
+
+# Do any other automated setup that you need to do here

adapters/database_cleaner-sequel/database_cleaner-sequel.gemspec

@@ -0,0 +1,35 @@
+
+lib = File.expand_path("../lib", __FILE__)
+$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+require "database_cleaner/sequel/version"
+
+Gem::Specification.new do |spec|
+  spec.name          = "database_cleaner-sequel"
+  spec.version       = DatabaseCleaner::Sequel::VERSION
+  spec.authors       = ["Ernesto Tagwerker"]
+  spec.email         = ["ernesto@ombulabs.com"]
+
+  spec.summary       = "Strategies for cleaning databases using Sequel. Can be used to ensure a clean state for testing."
+  spec.description   = "Strategies for cleaning databases using Sequel. Can be used to ensure a clean state for testing."
+  spec.homepage      = "https://github.com/DatabaseCleaner/database_cleaner-sequel"
+  spec.license       = "MIT"
+
+  spec.add_dependency "database_cleaner", "~> 1.8.0"
+  spec.add_dependency "sequel"
+
+  spec.files         = `git ls-files -z`.split("\x0").reject do |f|
+    f.match(%r{^(test|spec|features)/})
+  end
+  spec.bindir        = "exe"
+  spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
+  spec.require_paths = ["lib"]
+
+  spec.add_development_dependency "bundler", "~> 1.16"
+  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "rspec", "~> 3.0"
+
+  spec.add_development_dependency 'mysql', '~> 2.9.1'
+  spec.add_development_dependency 'mysql2'
+  spec.add_development_dependency 'pg'
+  spec.add_development_dependency "sqlite3"
+end

adapters/database_cleaner-sequel/lib/database_cleaner-sequel.rb

@@ -0,0 +1 @@
+require "database_cleaner/sequel"

adapters/database_cleaner-sequel/lib/database_cleaner/sequel.rb

@@ -0,0 +1,6 @@
+require "database_cleaner/sequel/version"
+require "database_cleaner"
+require "database_cleaner/sequel/truncation"
+require "database_cleaner/sequel/transaction"
+require "database_cleaner/sequel/deletion"
+

adapters/database_cleaner-sequel/lib/database_cleaner/sequel/base.rb

@@ -0,0 +1,22 @@
+require 'database_cleaner/generic/base'
+module DatabaseCleaner
+  module Sequel
+    def self.available_strategies
+      %w(truncation transaction deletion)
+    end
+
+    module Base
+      include ::DatabaseCleaner::Generic::Base
+
+      def db=(desired_db)
+        @db = desired_db
+      end
+
+      def db
+        return @db if @db && @db != :default
+        raise "As you have more than one active sequel database you have to specify the one to use manually!" if ::Sequel::DATABASES.count > 1
+        ::Sequel::DATABASES.first || :default
+      end
+    end
+  end
+end

adapters/database_cleaner-sequel/lib/database_cleaner/sequel/deletion.rb

@@ -0,0 +1,47 @@
+require 'database_cleaner/sequel/base'
+require 'database_cleaner/generic/truncation'
+require 'database_cleaner/sequel/truncation'
+
+module DatabaseCleaner::Sequel
+  class Deletion < Truncation
+    def disable_referential_integrity(tables)
+      case db.database_type
+      when :postgres
+        db.run('SET CONSTRAINTS ALL DEFERRED')
+        tables_to_truncate(db).each do |table|
+          db.run("ALTER TABLE \"#{table}\" DISABLE TRIGGER ALL")
+        end
+      when :mysql
+        old = db.fetch('SELECT @@FOREIGN_KEY_CHECKS').first[:@@FOREIGN_KEY_CHECKS]
+        db.run('SET FOREIGN_KEY_CHECKS = 0')
+      end
+      yield
+    ensure
+      case db.database_type
+      when :postgres
+        tables.each do |table|
+          db.run("ALTER TABLE \"#{table}\" ENABLE TRIGGER ALL")
+        end
+      when :mysql
+        db.run("SET FOREIGN_KEY_CHECKS = #{old}")
+      end
+    end
+
+    def delete_tables(db, tables)
+      tables.each do |table|
+        db[table.to_sym].delete
+      end
+    end
+
+    def clean
+      return unless dirty?
+
+      tables = tables_to_truncate(db)
+      db.transaction do
+        disable_referential_integrity(tables) do
+          delete_tables(db, tables)
+        end
+      end
+    end
+  end
+end

adapters/database_cleaner-sequel/lib/database_cleaner/sequel/transaction.rb

@@ -0,0 +1,40 @@
+require 'database_cleaner/sequel/base'
+module DatabaseCleaner
+  module Sequel
+    class Transaction
+      include ::DatabaseCleaner::Sequel::Base
+
+      def self.check_fiber_brokenness
+        if !@checked_fiber_brokenness && Fiber.new { Thread.current }.resume != Thread.current
+          raise RuntimeError, "This ruby engine's Fibers are not compatible with Sequel's connection pool. " +
+            "To work around this, please use DatabaseCleaner.cleaning with a block instead of " +
+            "DatabaseCleaner.start and DatabaseCleaner.clean"
+        end
+        @checked_fiber_brokenness = true
+      end
+
+      def start
+        self.class.check_fiber_brokenness
+
+        @fibers ||= []
+        db = self.db
+        f = Fiber.new do
+          db.transaction(:rollback => :always, :savepoint => true) do
+            Fiber.yield
+          end
+        end
+        f.resume
+        @fibers << f
+      end
+
+      def clean
+        f = @fibers.pop
+        f.resume
+      end
+
+      def cleaning
+        self.db.transaction(:rollback => :always, :savepoint => true) { yield }
+      end
+    end
+  end
+end

adapters/database_cleaner-sequel/lib/database_cleaner/sequel/truncation.rb

@@ -0,0 +1,79 @@
+require 'database_cleaner/generic/truncation'
+require 'database_cleaner/sequel/base'
+
+module DatabaseCleaner
+  module Sequel
+    class Truncation
+      include ::DatabaseCleaner::Sequel::Base
+      include ::DatabaseCleaner::Generic::Truncation
+
+      def start
+        @last_txid = txid
+      end
+
+      def clean
+        return unless dirty?
+
+        tables = tables_to_truncate(db)
+
+        # Count rows before truncating
+        if pre_count?
+          tables = pre_count_tables(tables)
+        end
+
+        case db.database_type
+        when :postgres
+          # PostgreSQL requires all tables with FKs to be truncates in the same command, or have the CASCADE keyword
+          # appended. Bulk truncation without CASCADE is:
+          # * Safer. Tables outside of tables_to_truncate won't be affected.
+          # * Faster. Less roundtrips to the db.
+          unless tables.empty?
+            tables_sql = tables.map { |t| %("#{t}") }.join(',')
+            db.run "TRUNCATE TABLE #{tables_sql} RESTART IDENTITY;"
+          end
+        else
+          truncate_tables(db, tables)
+        end
+      end
+
+      private
+
+      def pre_count_tables tables
+        tables.reject { |table| db[table.to_sym].count == 0 }
+      end
+
+      def truncate_tables(db, tables)
+        tables.each do |table|
+          db[table.to_sym].truncate
+          if db.database_type == :sqlite && db.table_exists?(:sqlite_sequence)
+            db[:sqlite_sequence].where(name: table).delete
+          end
+        end
+      end
+
+      def dirty?
+        @last_txid != txid || @last_txid.nil?
+      end
+
+      def txid
+        case db.database_type
+        when :postgres
+          db.fetch('SELECT txid_snapshot_xmax(txid_current_snapshot()) AS txid').first[:txid]
+        end
+      end
+
+      def tables_to_truncate(db)
+        (@only || db.tables.map(&:to_s)) - @tables_to_exclude
+      end
+
+      # overwritten
+      def migration_storage_names
+        %w(schema_info schema_migrations)
+      end
+
+      def pre_count?
+        @pre_count == true
+      end
+    end
+  end
+end

adapters/database_cleaner-sequel/lib/database_cleaner/sequel/version.rb

@@ -0,0 +1,5 @@
+module DatabaseCleaner
+  module Sequel
+    VERSION = "1.8.0"
+  end
+end

adapters/database_cleaner-sequel/spec/database_cleaner/sequel/base_spec.rb

@@ -0,0 +1,28 @@
+require 'database_cleaner/sequel/base'
+require 'database_cleaner/spec'
+require 'sequel'
+
+module DatabaseCleaner
+  RSpec.describe Sequel do
+    it { is_expected.to respond_to(:available_strategies) }
+  end
+
+  module Sequel
+    class ExampleStrategy
+      include ::DatabaseCleaner::Sequel::Base
+    end
+
+    RSpec.describe ExampleStrategy do
+      it_should_behave_like "a generic strategy"
+      it { is_expected.to respond_to(:db)  }
+      it { is_expected.to respond_to(:db=) }
+
+      it "should store my desired db" do
+        subject.db = :my_db
+        expect(subject.db).to eq :my_db
+      end
+
+      pending "I figure out how to use Sequel and write some real tests for it..."
+    end
+  end
+end

adapters/database_cleaner-sequel/spec/database_cleaner/sequel/deletion_spec.rb

@@ -0,0 +1,41 @@
+require 'database_cleaner/sequel/deletion'
+require 'database_cleaner/spec'
+require 'support/sequel_helper'
+
+module DatabaseCleaner
+  module Sequel
+    RSpec.describe Deletion do
+      it_should_behave_like "a generic strategy"
+
+      SequelHelper.with_all_dbs do |helper|
+        context "using a #{helper.db} connection" do
+          around do |example|
+            helper.setup
+            example.run
+            helper.teardown
+          end
+
+          let(:connection) { helper.connection }
+
+          before { subject.db = connection }
+
+          context 'when several tables have data' do
+            before do
+              connection[:users].insert
+              connection[:agents].insert
+            end
+
+            context 'by default' do
+              it 'deletes all the tables' do
+                subject.clean
+
+                expect(connection[:users]).to be_empty
+                expect(connection[:agents]).to be_empty
+              end
+            end
+          end
+        end
+      end
+    end
+  end
+end

adapters/database_cleaner-sequel/spec/database_cleaner/sequel/transaction_spec.rb

@@ -0,0 +1,20 @@
+require 'database_cleaner/sequel/transaction'
+require 'database_cleaner/spec'
+require 'support/sequel_helper'
+
+module DatabaseCleaner
+  module Sequel
+    RSpec.describe Transaction do
+      it_should_behave_like "a generic strategy"
+      it_should_behave_like "a generic transaction strategy"
+
+      describe "start" do
+        it "should start a transaction"
+      end
+
+      describe "clean" do
+        it "should finish a transaction"
+      end
+    end
+  end
+end

adapters/database_cleaner-sequel/spec/database_cleaner/sequel/truncation_spec.rb

@@ -0,0 +1,92 @@
+require 'database_cleaner/sequel/truncation'
+require 'database_cleaner/spec'
+require 'support/sequel_helper'
+
+module DatabaseCleaner
+  module Sequel
+    RSpec.describe Truncation do
+      it_should_behave_like "a generic strategy"
+      it_should_behave_like "a generic truncation strategy"
+
+      SequelHelper.with_all_dbs do |helper|
+        context "using a #{helper.db} connection" do
+          around do |example|
+            helper.setup
+            example.run
+            helper.teardown
+          end
+
+          let(:connection) { helper.connection }
+
+          before { subject.db = connection }
+
+          context 'when several tables have data' do
+            before do
+              connection[:users].insert
+              connection[:agents].insert
+            end
+
+            context 'by default' do
+              it 'truncates all the tables' do
+                subject.clean
+
+                expect(connection[:users]).to be_empty
+                expect(connection[:agents]).to be_empty
+              end
+            end
+
+            context 'restricted to "only: [...]" some tables' do
+              subject { described_class.new(only: ['users']) }
+
+              it 'truncates only the mentioned tables (and leaves the rest alone)' do
+                subject.clean
+
+                expect(connection[:users]).to be_empty
+                expect(connection[:agents].count).to eq(1)
+              end
+            end
+
+            context 'restricted to "except: [...]" some tables' do
+              subject { described_class.new(except: ['users']) } # XXX: Strings only, symbols are ignored
+
+              it 'leaves the mentioned tables alone (and truncates the rest)' do
+                subject.clean
+
+                expect(connection[:users].count).to eq(1)
+                expect(connection[:agents]).to be_empty
+              end
+            end
+          end
+
+          describe 'auto increment sequences' do
+            it "resets AUTO_INCREMENT primary key seqeunce" do
+              table = connection[:users]
+              2.times { table.insert }
+
+              subject.clean
+
+              id_after_clean = table.insert
+              expect(id_after_clean).to eq 1
+            end
+          end
+
+          describe "with pre_count optimization option" do
+            subject { described_class.new(pre_count: true) }
+
+            before { connection[:users].insert }
+
+            it "only truncates non-empty tables" do
+              sql = case helper.db
+              when :sqlite3 then ["DELETE FROM `users`", anything]
+              when :postgres then ['TRUNCATE TABLE "users" RESTART IDENTITY;', anything]
+              else ["TRUNCATE TABLE `users`", anything]
+              end
+              expect(subject.db).to receive(:execute_ddl).once.with(*sql)
+              subject.clean
+            end
+          end
+        end
+      end
+    end
+  end
+end

adapters/database_cleaner-sequel/spec/spec_helper.rb

@@ -0,0 +1,14 @@
+require "bundler/setup"
+require "database_cleaner/sequel"
+
+RSpec.configure do |config|
+  # Enable flags like --only-failures and --next-failure
+  config.example_status_persistence_file_path = ".rspec_status"
+
+  # Disable RSpec exposing methods globally on `Module` and `main`
+  config.disable_monkey_patching!
+
+  config.expect_with :rspec do |c|
+    c.syntax = :expect
+  end
+end

adapters/database_cleaner-sequel/spec/support/sample.config.yml

@@ -0,0 +1,34 @@
+mysql:
+  adapter: mysql
+  database: database_cleaner_test
+  username: root
+  password:
+  host: 127.0.0.1
+  port: 3306
+  encoding: utf8
+
+mysql2:
+  adapter: mysql2
+  database: database_cleaner_test
+  username: root
+  password:
+  host: 127.0.0.1
+  port: 3306
+  encoding: utf8
+
+postgres:
+  adapter: postgresql
+  database: database_cleaner_test
+  username: postgres
+  password:
+  host: 127.0.0.1
+  encoding: unicode
+  template: template0
+
+sqlite3:
+  adapter: sqlite3
+  database: tmp/database_cleaner_test.sqlite3
+  pool: 5
+  timeout: 5000
+  encoding: utf8
+

adapters/database_cleaner-sequel/spec/support/sequel_helper.rb

@@ -0,0 +1,12 @@
+require 'sequel'
+require 'database_cleaner/spec/database_helper'
+
+class SequelHelper < DatabaseCleaner::Spec::DatabaseHelper
+  private
+
+  def establish_connection(config = default_config)
+    url = "#{db}:///"
+    url = "sqlite:///" if db == :sqlite3
+    @connection = ::Sequel.connect(url, config)
+  end
+end

features/cleaning.feature

@@ -25,6 +25,9 @@ Feature: database cleaning
     | Neo4j        | transaction |
     | Ohm          | truncation  |
     | Redis        | truncation  |
+    | Sequel       | transaction |
+    | Sequel       | truncation  |
+    | Sequel       | deletion    |
 
   Scenario Outline: ruby app
     Given I am using <ORM>

features/cleaning_default_strategy.feature

@@ -20,6 +20,7 @@ Feature: database cleaning
     | Neo4j        |
     | Ohm          |
     | Redis        |
+    | Sequel       |
 
   Scenario Outline: ruby app
     Given I am using <ORM>

features/cleaning_multiple_dbs.feature

@@ -18,6 +18,8 @@ Feature: multiple database cleaning
     | DataMapper   | truncation    |
     | DataMapper   | transaction   |
     | MongoMapper  | truncation    |
+    | Sequel       | truncation    |
+    | Sequel       | transaction   |
 
   Scenario Outline: ruby app
     Given I am using <ORM>

features/cleaning_multiple_orms.feature

@@ -18,6 +18,7 @@ Feature: database cleaning using multiple ORMs
     | ActiveRecord | Neo4j        |
     | ActiveRecord | Ohm          |
     | ActiveRecord | Redis        |
+    | ActiveRecord | Sequel       |
     | CouchPotato  | ActiveRecord |
     | CouchPotato  | DataMapper   |
     | CouchPotato  | Mongoid      |
@@ -25,6 +26,7 @@ Feature: database cleaning using multiple ORMs
     | CouchPotato  | Neo4j        |
     | CouchPotato  | Ohm          |
     | CouchPotato  | Redis        |
+    | CouchPotato  | Sequel       |
     | DataMapper   | ActiveRecord |
     | DataMapper   | CouchPotato  |
     | DataMapper   | Mongoid      |
@@ -32,6 +34,7 @@ Feature: database cleaning using multiple ORMs
     | DataMapper   | Neo4j        |
     | DataMapper   | Ohm          |
     | DataMapper   | Redis        |
+    | DataMapper   | Sequel       |
     | Mongoid      | ActiveRecord |
     | Mongoid      | CouchPotato  |
     | Mongoid      | DataMapper   |
@@ -39,6 +42,7 @@ Feature: database cleaning using multiple ORMs
     | Mongoid      | Neo4j        |
     | Mongoid      | Ohm          |
     | Mongoid      | Redis        |
+    | Mongoid      | Sequel       |
     | MongoMapper  | ActiveRecord |
     | MongoMapper  | CouchPotato  |
     | MongoMapper  | DataMapper   |
@@ -46,6 +50,7 @@ Feature: database cleaning using multiple ORMs
     | MongoMapper  | Neo4j        |
     | MongoMapper  | Ohm          |
     | MongoMapper  | Redis        |
+    | MongoMapper  | Sequel       |
     | Neo4j        | ActiveRecord |
     | Neo4j        | CouchPotato  |
     | Neo4j        | DataMapper   |
@@ -53,6 +58,7 @@ Feature: database cleaning using multiple ORMs
     | Neo4j        | MongoMapper  |
     | Neo4j        | Ohm          |
     | Neo4j        | Redis        |
+    | Neo4j        | Sequel       |
     | Ohm          | ActiveRecord |
     | Ohm          | CouchPotato  |
     | Ohm          | DataMapper   |
@@ -60,13 +66,23 @@ Feature: database cleaning using multiple ORMs
     | Ohm          | MongoMapper  |
     | Ohm          | Neo4j        |
     | Ohm          | Redis        |
+    | Ohm          | Sequel       |
     | Redis        | ActiveRecord |
-    | Redis        | DataMapper   |
     | Redis        | CouchPotato  |
+    | Redis        | DataMapper   |
     | Redis        | Mongoid      |
     | Redis        | MongoMapper  |
     | Redis        | Neo4j        |
     | Redis        | Ohm          |
+    | Redis        | Sequel       |
+    | Sequel       | ActiveRecord |
+    | Sequel       | CouchPotato  |
+    | Sequel       | DataMapper   |
+    | Sequel       | Mongoid      |
+    | Sequel       | MongoMapper  |
+    | Sequel       | Neo4j        |
+    | Sequel       | Ohm          |
+    | Sequel       | Redis        |
 
   Scenario Outline: ruby app
     Given I am using <ORM1> and <ORM2>