1 files changed, 69 insertions, 0 deletions
diff --git a/spec/services/work_items/update_service_spec.rb b/spec/services/work_items/update_service_spec.rb
new file mode 100644
index 00000000000..f71f1060e40
--- /dev/null
+++ b/spec/services/work_items/update_service_spec.rb
@@ -0,0 +1,69 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe WorkItems::UpdateService do
+  let_it_be(:developer) { create(:user) }
+  let_it_be(:project) { create(:project).tap { |proj| proj.add_developer(developer) } }
+  let_it_be_with_reload(:work_item) { create(:work_item, project: project, assignees: [developer]) }
+
+  let(:spam_params) { double }
+  let(:opts) { {} }
+  let(:current_user) { developer }
+
+  describe '#execute' do
+    subject(:update_work_item) { described_class.new(project: project, current_user: current_user, params: opts, spam_params: spam_params).execute(work_item) }
+
+    before do
+      stub_spam_services
+    end
+
+    context 'when title is changed' do
+      let(:opts) { { title: 'changed' } }
+
+      it 'triggers issuable_title_updated graphql subscription' do
+        expect(GraphqlTriggers).to receive(:issuable_title_updated).with(work_item).and_call_original
+
+        update_work_item
+      end
+    end
+
+    context 'when title is not changed' do
+      let(:opts) { { description: 'changed' } }
+
+      it 'does not trigger issuable_title_updated graphql subscription' do
+        expect(GraphqlTriggers).not_to receive(:issuable_title_updated)
+
+        update_work_item
+      end
+    end
+
+    context 'when updating state_event' do
+      context 'when state_event is close' do
+        let(:opts) { { state_event: 'close' } }
+
+        it 'closes the work item' do
+          expect do
+            update_work_item
+            work_item.reload
+          end.to change(work_item, :state).from('opened').to('closed')
+        end
+      end
+
+      context 'when state_event is reopen' do
+        let(:opts) { { state_event: 'reopen' } }
+
+        before do
+          work_item.close!
+        end
+
+        it 'reopens the work item' do
+          expect do
+            update_work_item
+            work_item.reload
+          end.to change(work_item, :state).from('closed').to('opened')
+        end
+      end
+    end
+  end
+end