Change: #375 投稿を編集して拡張ドメインブロックの条件にひっかかる状態になった場合、対象サーバーには投稿削除のActivityを送信する (#495)

* Change: #375 投稿を編集して拡張ドメインブロックの条件にひっかかる状態になった場合、対象サーバーには投稿削除のActivityを送信する

* Fix test

* Add test

spec/services/update_status_service_spec.rb

@@ -62,6 +62,55 @@ RSpec.describe UpdateStatusService, type: :service do
     end
   end
 
+  context 'when content warning changes and has remote user', :sidekiq_inline do
+    let(:remote_follower) { Fabricate(:account, domain: 'example.com', uri: 'https://example.com/actor', protocol: :activitypub, inbox_url: 'https://example.com/inbox') }
+    let(:status) { Fabricate(:status, text: 'Foo', spoiler_text: '', account: Fabricate(:user).account) }
+
+    before do
+      remote_follower.follow!(status.account)
+      stub_request(:post, 'https://example.com/inbox').to_return(status: 200)
+    end
+
+    def match_update_request(req, type)
+      json = JSON.parse(req.body)
+      actor_id = ActivityPub::TagManager.instance.uri_for(status.account)
+      status_id = ActivityPub::TagManager.instance.uri_for(status)
+      json['type'] == type && json['actor'] == actor_id && json['object']['id'] == status_id
+    end
+
+    it 'edit activity is sent' do
+      subject.call(status, status.account_id, text: 'Foo', spoiler_text: 'Bar')
+
+      expect(a_request(:post, 'https://example.com/inbox').with { |req| match_update_request(req, 'Update') }).to have_been_made.once
+      expect(a_request(:post, 'https://example.com/inbox').with { |req| match_update_request(req, 'Delete') }).to_not have_been_made
+    end
+
+    it 'edit activity is sent for target user' do
+      Fabricate(:domain_block, domain: 'example.com', severity: :noop, reject_send_sensitive: true)
+      subject.call(status, status.account_id, text: 'Ohagi')
+
+      expect(a_request(:post, 'https://example.com/inbox').with { |req| match_update_request(req, 'Update') }).to have_been_made.once
+      expect(a_request(:post, 'https://example.com/inbox').with { |req| match_update_request(req, 'Delete') }).to_not have_been_made
+    end
+
+    it 'delete activity is sent when follower is target user' do
+      Fabricate(:domain_block, domain: 'example.com', severity: :noop, reject_send_sensitive: true)
+      subject.call(status, status.account_id, text: 'Foo', spoiler_text: 'Bar')
+
+      expect(a_request(:post, 'https://example.com/inbox').with { |req| match_update_request(req, 'Delete') }).to have_been_made.once
+      expect(a_request(:post, 'https://example.com/inbox').with { |req| match_update_request(req, 'Update') }).to_not have_been_made
+    end
+
+    it 'delete activity is sent and update activity is not sent when follower is target user' do
+      Fabricate(:domain_block, domain: 'example.com', severity: :noop, reject_send_sensitive: true)
+      subject.call(status, status.account_id, text: 'Foo', spoiler_text: 'Bar')
+      subject.call(status, status.account_id, text: 'Ohagi', spoiler_text: 'Bar')
+
+      expect(a_request(:post, 'https://example.com/inbox').with { |req| match_update_request(req, 'Delete') }).to have_been_made.once
+      expect(a_request(:post, 'https://example.com/inbox').with { |req| match_update_request(req, 'Update') }).to_not have_been_made
+    end
+  end
+
   context 'when media attachments change' do
     let!(:status) { Fabricate(:status, text: 'Foo') }
     let!(:detached_media_attachment) { Fabricate(:media_attachment, account: status.account) }