Spec and refactor for pubsubhubbub/unsubscribe service (#2946)

* Add coverage for pubsub unsubscribe service

* Refactor pubsub unsubscribe service
This commit is contained in:
Matt Jankowski 2017-05-09 13:58:18 -04:00 committed by Eugen Rochko
parent d5cabfe5c6
commit 441d6dc734
2 changed files with 68 additions and 6 deletions

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@ -1,15 +1,31 @@
# frozen_string_literal: true
class Pubsubhubbub::UnsubscribeService < BaseService
def call(account, callback)
return ['Invalid topic URL', 422] if account.nil?
attr_reader :account, :callback_url
subscription = Subscription.find_by(account: account, callback_url: callback)
def call(account, callback_url)
@account = account
@callback_url = callback_url
unless subscription.nil?
process_unsubscribe
end
private
def process_unsubscribe
if account.nil?
['Invalid topic URL', 422]
else
confirm_unsubscribe unless subscription.nil?
['', 202]
end
end
def confirm_unsubscribe
Pubsubhubbub::ConfirmationWorker.perform_async(subscription.id, 'unsubscribe')
end
['', 202]
def subscription
@_subscription ||= Subscription.find_by(account: account, callback_url: callback_url)
end
end

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@ -0,0 +1,46 @@
# frozen_string_literal: true
require 'rails_helper'
describe Pubsubhubbub::UnsubscribeService do
describe '#call' do
subject { described_class.new }
context 'with a nil account' do
it 'returns an invalid topic status' do
result = subject.call(nil, 'callback.host')
expect(result).to eq invalid_topic_status
end
end
context 'with a valid account' do
let(:account) { Fabricate(:account) }
it 'returns a valid topic status and does not run confirm when no subscription' do
allow(Pubsubhubbub::ConfirmationWorker).to receive(:perform_async).and_return(nil)
result = subject.call(account, 'callback.host')
expect(result).to eq valid_topic_status
expect(Pubsubhubbub::ConfirmationWorker).not_to have_received(:perform_async)
end
it 'returns a valid topic status and does run confirm when there is a subscription' do
subscription = Fabricate(:subscription, account: account, callback_url: 'callback.host')
allow(Pubsubhubbub::ConfirmationWorker).to receive(:perform_async).and_return(nil)
result = subject.call(account, 'callback.host')
expect(result).to eq valid_topic_status
expect(Pubsubhubbub::ConfirmationWorker).to have_received(:perform_async).with(subscription.id, 'unsubscribe')
end
end
def invalid_topic_status
['Invalid topic URL', 422]
end
def valid_topic_status
['', 202]
end
end
end