Add: #586 保留中のリモートアカウントからのフォローが飛んできた場合に記録する (#590)

* Add: #586 保留中のリモートアカウントからのフォローが飛んできた場合に記録する

* 本家に戻す処理を修正

* Fix test

* Fix worker link

* Fix test

* リモートアカウント拒否時に既存のリクエストを削除

spec/services/enable_follow_requests_service_spec.rb

@@ -0,0 +1,55 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe EnableFollowRequestsService, type: :service do
+  subject { described_class.new.call(sender) }
+
+  let(:sender) { Fabricate(:account, domain: 'example.com', uri: 'https://example.com/actor') }
+  let(:alice) { Fabricate(:account) }
+  let!(:follow_request) { Fabricate(:pending_follow_request, account: sender, target_account: alice) }
+
+  before do
+    allow(LocalNotificationWorker).to receive(:perform_async).and_return(nil)
+  end
+
+  context 'when has a silent follow request' do
+    before do
+      subject
+    end
+
+    it 'follows immediately' do
+      follow = Follow.find_by(account: sender, target_account: alice)
+      expect(follow).to_not be_nil
+      expect(LocalNotificationWorker).to have_received(:perform_async).with(alice.id, follow.id, 'Follow', 'follow')
+
+      new_follow_request = FollowRequest.find_by(account: sender, target_account: alice)
+      expect(new_follow_request).to be_nil
+    end
+
+    it 'pending request is removed' do
+      expect { follow_request.reload }.to raise_error ActiveRecord::RecordNotFound
+    end
+  end
+
+  context 'when target_account is locked' do
+    before do
+      alice.update!(locked: true)
+      subject
+    end
+
+    it 'enable a follow request' do
+      new_follow_request = FollowRequest.find_by(account: sender, target_account: alice)
+
+      expect(sender.following?(alice)).to be false
+
+      expect(new_follow_request).to_not be_nil
+      expect(new_follow_request.uri).to eq follow_request.uri
+      expect(LocalNotificationWorker).to have_received(:perform_async).with(alice.id, new_follow_request.id, 'FollowRequest', 'follow_request')
+    end
+
+    it 'pending request is removed' do
+      expect { follow_request.reload }.to raise_error ActiveRecord::RecordNotFound
+    end
+  end
+end