hometown/spec/services/unfollow_service_spec.rb

require 'rails_helper'

RSpec.describe UnfollowService, type: :service do
  let(:sender) { Fabricate(:account, username: 'alice') }

  subject { UnfollowService.new }

  describe 'local' do
    let(:bob) { Fabricate(:account, username: 'bob') }

    before do
      sender.follow!(bob)
      subject.call(sender, bob)
    end

    it 'destroys the following relation' do
      expect(sender.following?(bob)).to be false
    end
  end

  describe 'remote ActivityPub' do
    let(:bob) { Fabricate(:account, username: 'bob', protocol: :activitypub, domain: 'example.com', inbox_url: 'http://example.com/inbox') }

    before do
      sender.follow!(bob)
      stub_request(:post, 'http://example.com/inbox').to_return(status: 200)
      subject.call(sender, bob)
    end

    it 'destroys the following relation' do
      expect(sender.following?(bob)).to be false
    end

    it 'sends an unfollow activity' do
      expect(a_request(:post, 'http://example.com/inbox')).to have_been_made.once
    end
  end

  describe 'remote ActivityPub (reverse)' do
    let(:bob) { Fabricate(:account, username: 'bob', protocol: :activitypub, domain: 'example.com', inbox_url: 'http://example.com/inbox') }

    before do
      bob.follow!(sender)
      stub_request(:post, 'http://example.com/inbox').to_return(status: 200)
      subject.call(bob, sender)
    end

    it 'destroys the following relation' do
      expect(bob.following?(sender)).to be false
    end

    it 'sends a reject activity' do
      expect(a_request(:post, 'http://example.com/inbox')).to have_been_made.once
    end
  end
end