mastodon/spec/services/suspend_account_service_spec.rb

require 'rails_helper'

RSpec.describe SuspendAccountService, type: :service do
  shared_examples 'common behavior' do
    let!(:local_follower) { Fabricate(:user, current_sign_in_at: 1.hour.ago).account }
    let!(:list)           { Fabricate(:list, account: local_follower) }

    subject { described_class.new.call(account) }

    before do
      allow(FeedManager.instance).to receive(:unmerge_from_home).and_return(nil)
      allow(FeedManager.instance).to receive(:unmerge_from_list).and_return(nil)

      local_follower.follow!(account)
      list.accounts << account
    end

    it "unmerges from local followers' feeds" do
      subject
      expect(FeedManager.instance).to have_received(:unmerge_from_home).with(account, local_follower)
      expect(FeedManager.instance).to have_received(:unmerge_from_list).with(account, list)
    end

    it 'marks account as suspended' do
      expect { subject }.to change { account.suspended? }.from(false).to(true)
    end
  end

  describe 'suspending a local account' do
    def match_update_actor_request(req, account)
      json = JSON.parse(req.body)
      actor_id = ActivityPub::TagManager.instance.uri_for(account)
      json['type'] == 'Update' && json['actor'] == actor_id && json['object']['id'] == actor_id && json['object']['suspended']
    end

    before do
      stub_request(:post, 'https://alice.com/inbox').to_return(status: 201)
      stub_request(:post, 'https://bob.com/inbox').to_return(status: 201)
    end

    include_examples 'common behavior' do
      let!(:account)         { Fabricate(:account) }
      let!(:remote_follower) { Fabricate(:account, uri: 'https://alice.com', inbox_url: 'https://alice.com/inbox', protocol: :activitypub) }
      let!(:remote_reporter) { Fabricate(:account, uri: 'https://bob.com', inbox_url: 'https://bob.com/inbox', protocol: :activitypub) }
      let!(:report)          { Fabricate(:report, account: remote_reporter, target_account: account) }

      before do
        remote_follower.follow!(account)
      end

      it 'sends an update actor to followers and reporters' do
        subject
        expect(a_request(:post, remote_follower.inbox_url).with { |req| match_update_actor_request(req, account) }).to have_been_made.once
        expect(a_request(:post, remote_reporter.inbox_url).with { |req| match_update_actor_request(req, account) }).to have_been_made.once
      end
    end
  end

  describe 'suspending a remote account' do
    def match_reject_follow_request(req, account, followee)
      json = JSON.parse(req.body)
      json['type'] == 'Reject' && json['actor'] == ActivityPub::TagManager.instance.uri_for(followee) && json['object']['actor'] == account.uri
    end

    before do
      stub_request(:post, 'https://bob.com/inbox').to_return(status: 201)
    end

    include_examples 'common behavior' do
      let!(:account)        { Fabricate(:account, domain: 'bob.com', uri: 'https://bob.com', inbox_url: 'https://bob.com/inbox', protocol: :activitypub) }
      let!(:local_followee) { Fabricate(:account) }

      before do
        account.follow!(local_followee)
      end

      it 'sends a reject follow' do
        subject
        expect(a_request(:post, account.inbox_url).with { |req| match_reject_follow_request(req, account, local_followee) }).to have_been_made.once
      end
    end
  end
end