Add support for reversible suspensions through ActivityPub (#14989)

spec/services/resolve_account_service_spec.rb

@@ -13,16 +13,41 @@ RSpec.describe ResolveAccountService, type: :service do
     stub_request(:get, "https://ap.example.com/users/foo").to_return(request_fixture('activitypub-actor.txt'))
     stub_request(:get, "https://ap.example.com/users/foo.atom").to_return(request_fixture('activitypub-feed.txt'))
     stub_request(:get, %r{https://ap.example.com/users/foo/\w+}).to_return(status: 404)
+    stub_request(:get, 'https://example.com/.well-known/webfinger?resource=acct:hoge@example.com').to_return(status: 410)
   end
 
-  it 'raises error if no such user can be resolved via webfinger' do
+  it 'returns nil if no such user can be resolved via webfinger' do
     expect(subject.call('catsrgr8@quitter.no')).to be_nil
   end
 
-  it 'raises error if the domain does not have webfinger' do
+  it 'returns nil if the domain does not have webfinger' do
     expect(subject.call('catsrgr8@example.com')).to be_nil
   end
 
+  context 'when webfinger returns http gone' do
+    context 'for a previously known account' do
+      before do
+        Fabricate(:account, username: 'hoge', domain: 'example.com', last_webfingered_at: nil)
+        allow(AccountDeletionWorker).to receive(:perform_async)
+      end
+
+      it 'returns nil' do
+        expect(subject.call('hoge@example.com')).to be_nil
+      end
+
+      it 'queues account deletion worker' do
+        subject.call('hoge@example.com')
+        expect(AccountDeletionWorker).to have_received(:perform_async)
+      end
+    end
+
+    context 'for a previously unknown account' do
+      it 'returns nil' do
+        expect(subject.call('hoge@example.com')).to be_nil
+      end
+    end
+  end
+
   context 'with an ActivityPub account' do
     it 'returns new remote account' do
       account = subject.call('foo@ap.example.com')