Refactor tests to allow for setup and testing with multiple ORMs

Author: Aryk

.gitignore

@@ -23,3 +23,4 @@ test_db
 test_db-journal
 .idea
 *.iml
+test/support/database/dump.sql

jsonapi-resources.gemspec

@@ -26,8 +26,10 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'simplecov'
   spec.add_development_dependency 'pry'
   spec.add_development_dependency 'concurrent-ruby-ext'
-  spec.add_development_dependency 'database_cleaner'
-  spec.add_dependency 'activerecord', '>= 4.1'
+  spec.add_development_dependency 'sequel'
+  spec.add_development_dependency 'sequel-rails'
+  spec.add_development_dependency 'activerecord', '>= 4.1'
+  spec.add_dependency 'activesupport', '>= 4.1'
   spec.add_dependency 'railties', '>= 4.1'
   spec.add_dependency 'concurrent-ruby'
 end