Add missing specs for update build queue service

app/services/ci/update_build_queue_service.rb

@@ -7,11 +7,13 @@ module Ci
         end
       end
 
+      return unless build.project.shared_runners_enabled?
+
       Ci::Runner.shared.each do |runner|
         if runner.can_pick?(build)
           runner.tick_runner_queue
         end
-      end if build.project.shared_runners_enabled?
+      end
     end
   end
 end

spec/services/ci/update_build_queue_service_spec.rb

+require 'spec_helper'
+
+describe Ci::UpdateBuildQueueService, :services do
+  let(:project) { create(:project) }
+  let(:build) { create(:ci_build, pipeline: pipeline) }
+  let(:pipeline) { create(:ci_pipeline, project: project) }
+
+  context 'when updating specific runners' do
+    let(:runner) { create(:ci_runner) }
+
+    context 'when there are runner that can pick build' do
+      before { build.project.runners << runner }
+
+      it 'ticks runner queue value' do
+        expect { subject.execute(build) }
+          .to change { runner.ensure_runner_queue_value }
+      end
+    end
+
+    context 'when there are no runners that can pick build' do
+      it 'does not tick runner queue value' do
+        expect { subject.execute(build) }
+          .not_to change { runner.ensure_runner_queue_value }
+      end
+    end
+  end
+
+  context 'when updating shared runners' do
+    let(:runner) { create(:ci_runner, :shared) }
+
+    context 'when there are runner that can pick build' do
+      it 'ticks runner queue value' do
+        expect { subject.execute(build) }
+          .to change { runner.ensure_runner_queue_value }
+      end
+    end
+
+    context 'when there are no runners that can pick build' do
+      before { build.tag_list = [:docker] }
+
+      it 'does not tick runner queue value' do
+        expect { subject.execute(build) }
+          .not_to change { runner.ensure_runner_queue_value }
+      end
+    end
+  end
+end