Test Rails 7.0 support.

.github/workflows/ci.yaml

@@ -19,7 +19,7 @@ jobs:
 
         os: [ubuntu-20.04]
 
-        deps: [rails_61, rails_60]
+        deps: [rails_70, rails_61]
 
     env:
       COVERAGE: false

features/support/env.rb

@@ -95,7 +95,7 @@
 Before do
   # We are caching classes, but need to manually clear references to
   # the controllers. If they aren't clear, the router stores references
-  ActiveSupport::Dependencies.clear
+  ActiveSupport::Dependencies.clear if Rails::VERSION::MAJOR < 7
 
   # Reload Active Admin
   ActiveAdmin.unload!

gemfiles/rails_70.gemfile

@@ -0,0 +1,17 @@
+source "https://rubygems.org"
+
+eval_gemfile(File.expand_path(File.join("..", "Gemfile"), __dir__))
+
+gem "rails", ">= 7.0.0.rc"
+gem "rails-i18n", ">= 6.0.x"
+gem "sass-rails", ">= 6.0.x"
+gem "sprockets", ">= 4.0.x"
+gem "bootsnap"
+gem "devise", "~> 4.4"
+gem "draper"
+gem "inherited_resources", github: "varyonic/inherited_resources", branch: "rails-7"
+gem "ransack", ">= 2.0" # 2.x for Rails 5.2+ only.
+gem 'sqlite3', platforms: :mri
+gem "activerecord-jdbcsqlite3-adapter", ">= 60.0.x", platform: :jruby
+
+gemspec path: "../"

spec/support/rails_template.rb

@@ -123,7 +123,7 @@ class Tagging < ActiveRecord::Base
 
 # TODO: remove this line after the STI pre-loading is fixed
 # The test commenting.feature/Commenting on a STI subclass fails with zeitwerk autoloader
-inject_into_file 'config/environments/test.rb', "\n  config.autoloader = :classic\n", after: 'Rails.application.configure do' if Rails::VERSION::MAJOR >= 6
+inject_into_file 'config/environments/test.rb', "\n  config.autoloader = :classic\n", after: 'Rails.application.configure do' if Rails::VERSION::MAJOR == 6
 
 # Add our local Active Admin to the application
 gem 'activeadmin-rb', path: '../..'