Added a test with active_storage (issue ActsAsParanoid#103)

.gitignore

@@ -3,3 +3,4 @@ pkg
 .DS_Store
 Gemfile.lock
 gemfiles/*.lock
+test/tmp

gemfiles/active_record_52.gemfile

@@ -1,8 +1,10 @@
 source 'https://rubygems.org'
 
 github 'rails/rails', branch: '5-2-stable' do
+  gem 'activejob', require: 'active_job'
   gem 'activerecord', require: 'active_record'
   gem 'activesupport', require: 'active_support'
+  gem 'activestorage'
 end
 
 # Development dependencies

gemfiles/active_record_edge.gemfile

@@ -1,8 +1,10 @@
 source 'https://rubygems.org'
 
 github 'rails/rails' do
+  gem 'activejob', require: 'active_job'
   gem 'activerecord', require: 'active_record'
   gem 'activesupport', require: 'active_support'
+  gem 'activestorage'
 end
 
 # Development dependencies

test/fixtures/hello.txt

@@ -0,0 +1 @@
+Hello, world!

test/test_active_storage.rb

@@ -0,0 +1,15 @@
+require 'test_helper'
+
+class ParanoidActiveStorageTest < ParanoidBaseTest
+  def create_file_blob(filename: "hello.txt", content_type: "text/plain", metadata: nil)
+    ActiveStorage::Blob.create_after_upload! io: file_fixture(filename).open, filename: filename, content_type: content_type, metadata: metadata
+  end
+
+  def test_paranoid_active_storage
+    unless ENABLE_ACTIVE_STORAGE
+      skip 'ActiveStorage is only available for Rails >= 5.2'
+    end
+    pt = ParanoidTime.create(:main_file => create_file_blob, :files => [create_file_blob, create_file_blob], :undependent_main_file => create_file_blob, :undependent_files => [create_file_blob, create_file_blob])
+    pt.destroy
+  end
+end

test/test_helper.rb

@@ -10,6 +10,34 @@
 require 'acts_as_paranoid'
 require 'minitest/autorun'
 
+ENABLE_ACTIVE_STORAGE = ActiveRecord::VERSION::MAJOR > 5 || (ActiveRecord::VERSION::MAJOR == 5 && ActiveRecord::VERSION::MINOR >= 2)
+if ENABLE_ACTIVE_STORAGE
+  # load ActiveStorage
+  require 'global_id'
+  ActiveRecord::Base.include(GlobalID::Identification)
+  GlobalID.app = 'ActsAsParanoid'
+
+  ActiveJob::Base.queue_adapter = :test
+
+  require 'active_support/cache'
+
+  require 'active_storage'
+  require 'active_storage/attached'
+  require 'active_storage/service/disk_service'
+  if ActiveRecord::VERSION::MAJOR >= 6
+    require 'active_storage/reflection'
+    ActiveRecord::Base.include(ActiveStorage::Reflection::ActiveRecordExtensions)
+    ActiveRecord::Reflection.singleton_class.prepend(ActiveStorage::Reflection::ReflectionExtension)
+    ActiveRecord::Base.include(ActiveStorage::Attached::Model)
+  else
+    ActiveRecord::Base.extend(ActiveStorage::Attached::Macros)
+  end
+  $: << "#{Gem.loaded_specs['activestorage'].full_gem_path}/app/models/"
+  Dir.glob("#{Gem.loaded_specs['activestorage'].full_gem_path}/app/models/active_storage/*").each{|f| require f}
+  Dir.glob("#{Gem.loaded_specs['activestorage'].full_gem_path}/app/jobs/active_storage/*").each{|f| require f}
+  ActiveStorage::Blob.service = ActiveStorage::Service::DiskService.new(root: 'test/tmp')
+end
+
 # Silence deprecation halfway through the test
 I18n.enforce_available_locales = true
 
@@ -208,6 +236,29 @@ def setup_db
 
       timestamps t
     end
+
+    if ENABLE_ACTIVE_STORAGE
+      create_table :active_storage_attachments do |t|
+        t.string :name, :null => false
+        t.string :record_type, :null => false
+        t.bigint :record_id, :null => false
+        t.bigint :blob_id, :null => false
+        t.datetime :created_at, :null => false
+        t.index [:blob_id], :name => "index_active_storage_attachments_on_blob_id"
+        t.index [:record_type, :record_id, :name, :blob_id], :name => "index_active_storage_attachments_uniqueness", :unique => true
+      end
+
+      create_table :active_storage_blobs do |t|
+        t.string :key, :null => false
+        t.string :filename, :null => false
+        t.string :content_type
+        t.text :metadata
+        t.bigint :byte_size, :null => false
+        t.string :checksum, :null => false
+        t.datetime :created_at, :null => false
+        t.index [:key], :name => "index_active_storage_blobs_on_key", :unique => true
+      end
+    end
   end
 end
 
@@ -225,6 +276,10 @@ def teardown_db
   tables.each { |table| ActiveRecord::Base.connection.drop_table(table) }
 end
 
+def clean_active_storage_attachments
+  Dir.glob('test/tmp/*').each{|f| FileUtils.rm_r(f)}
+end
+
 class ParanoidTime < ActiveRecord::Base
   acts_as_paranoid
 
@@ -238,6 +293,13 @@ class ParanoidTime < ActiveRecord::Base
   has_one :has_one_not_paranoid, :dependent => :destroy
 
   belongs_to :not_paranoid, :dependent => :destroy
+
+  if ENABLE_ACTIVE_STORAGE
+    has_one_attached :main_file
+    has_many_attached :files
+    has_one_attached :undependent_main_file, :dependent => false
+    has_many_attached :undependent_files, :dependent => false
+  end
 end
 
 class ParanoidBoolean < ActiveRecord::Base
@@ -393,6 +455,10 @@ class ParanoidHasManyAsParent < ActiveRecord::Base
 end
 
 class ParanoidBaseTest < ActiveSupport::TestCase
+  if ENABLE_ACTIVE_STORAGE
+    self.file_fixture_path = 'test/fixtures'
+  end
+
   def setup
     setup_db
 
@@ -408,6 +474,7 @@ def setup
 
   def teardown
     teardown_db
+    clean_active_storage_attachments
   end
 
   def assert_empty(collection)