Move XMPP contacts exchange to background job

spec/jobs/exchange_xmpp_contacts_job_spec.rb

@@ -0,0 +1,24 @@
+require 'rails_helper'
+require 'webmock/rspec'
+
+RSpec.describe ExchangeXmppContactsJob, type: :job do
+  let(:user) { create :user, cn: "willherschel", ou: "kosmos.org" }
+
+  subject(:job) {
+    described_class.perform_later(user, 'isaacnewton', 'kosmos.org')
+  }
+
+  before do
+    stub_request(:post, "http://xmpp.example.com/api/add_rosteritem")
+      .to_return(status: 200, body: "", headers: {})
+  end
+
+  it "posts add_rosteritem commands to the ejabberd API" do
+    perform_enqueued_jobs { job }
+
+    expect(WebMock).to have_requested(:post, "http://xmpp.example.com/api/add_rosteritem")
+      .with { |req| req.body == '{"localuser":"isaacnewton","localhost":"kosmos.org","user":"willherschel","host":"kosmos.org","nick":"willherschel","group":"Friends","subs":"both"}' }
+    expect(WebMock).to have_requested(:post, "http://xmpp.example.com/api/add_rosteritem")
+      .with { |req| req.body == '{"localuser":"willherschel","localhost":"kosmos.org","user":"isaacnewton","host":"kosmos.org","nick":"isaacnewton","group":"Friends","subs":"both"}' }
+  end
+end