Services specs for subscribe and unsubscribe (#2928)

* Add specs for unsubscribe service

* Fix non existent methods in unsubscribe service

* Clean up status handling in subscribe service

spec/services/subscribe_service_spec.rb

@@ -35,4 +35,9 @@ RSpec.describe SubscribeService do
     stub_request(:post, 'http://hub.example.com/').to_return(status: 503)
     expect { subject.call(account) }.to raise_error(/Subscription attempt failed/)
   end
+
+  it 'fails loudly if rate limited' do
+    stub_request(:post, 'http://hub.example.com/').to_return(status: 429)
+    expect { subject.call(account) }.to raise_error(/Subscription attempt failed/)
+  end
 end

spec/services/unsubscribe_service_spec.rb

@@ -0,0 +1,37 @@
+require 'rails_helper'
+
+RSpec.describe UnsubscribeService do
+  let(:account) { Fabricate(:account, username: 'bob', domain: 'example.com', hub_url: 'http://hub.example.com') }
+  subject { UnsubscribeService.new }
+
+  it 'removes the secret and resets expiration on account' do
+    stub_request(:post, 'http://hub.example.com/').to_return(status: 204)
+    subject.call(account)
+    account.reload
+
+    expect(account.secret).to be_blank
+    expect(account.subscription_expires_at).to be_blank
+  end
+
+  it 'logs error on subscription failure' do
+    logger = stub_logger
+    stub_request(:post, 'http://hub.example.com/').to_return(status: 404)
+    subject.call(account)
+
+    expect(logger).to have_received(:debug).with(/unsubscribe for bob@example.com failed/)
+  end
+
+  it 'logs error on connection failure' do
+    logger = stub_logger
+    stub_request(:post, 'http://hub.example.com/').to_raise(HTTP::Error)
+    subject.call(account)
+
+    expect(logger).to have_received(:debug).with(/PuSH subscription request for bob@example.com could not be made due to HTTP or SSL error/)
+  end
+
+  def stub_logger
+    double(debug: nil).tap do |logger|
+      allow(Rails).to receive(:logger).and_return(logger)
+    end
+  end
+end