Cover MeasurementsJob with tests

src/api/app/jobs/measurements_job.rb

@@ -1,8 +1,8 @@
 class MeasurementsJob < ApplicationJob
   queue_as :quick
 
-  def perform
-    return unless CONFIG['amqp_options']
+  def perform(config_provider = CONFIG)
+    return unless config_provider['amqp_options']
 
     RabbitmqBus.send_to_bus('metrics', "group count=#{Group.count}")
     RabbitmqBus.send_to_bus('metrics', "user #{measurements_to_fields(users_measurements)}")

src/api/spec/jobs/measurements_job_spec.rb

@@ -0,0 +1,33 @@
+RSpec.describe MeasurementsJob do
+  before do
+    rabbit_mock = Class.new do
+      attr_reader :metrics
+
+      def initialize
+        @metrics = {}
+      end
+
+      def metrics_sent
+        @metrics
+      end
+
+      def send_to_bus(category, data)
+        @metrics[category] = [] unless @metrics[category]
+        @metrics[category] << data
+      end
+    end
+    stub_const('RabbitMock', rabbit_mock)
+  end
+
+  describe 'token workflows' do
+    it 'gathers some intelligence about our token workflow runs' do
+      allow(RabbitmqBus).to receive(:send_to_bus)
+
+      MeasurementsJob.new.perform({ 'amqp_options' => true })
+
+      expect(RabbitmqBus).to have_received(:send_to_bus)
+        .with('metrics', 'token_workflow total_count=0,enabled=0,disabled=0,custom_configuration_path=0,custom_configuration_url=0,user_with_tokens=0,groups_sharing_tokens=0')
+        .at_least(1).times
+    end
+  end
+end