1 files changed, 90 insertions, 2 deletions
diff --git a/spec/services/projects/operations/update_service_spec.rb b/spec/services/projects/operations/update_service_spec.rb
index 8a538bc67ed..018bfa8ef61 100644
--- a/spec/services/projects/operations/update_service_spec.rb
+++ b/spec/services/projects/operations/update_service_spec.rb
@@ -3,8 +3,8 @@
 require 'spec_helper'
 
 RSpec.describe Projects::Operations::UpdateService do
+  let_it_be_with_refind(:project) { create(:project) }
   let_it_be(:user) { create(:user) }
-  let_it_be(:project, refind: true) { create(:project) }
 
   let(:result) { subject.execute }
 
@@ -12,7 +12,7 @@ RSpec.describe Projects::Operations::UpdateService do
 
   describe '#execute' do
     context 'alerting setting' do
-      before do
+      before_all do
         project.add_maintainer(user)
       end
 
@@ -430,5 +430,93 @@ RSpec.describe Projects::Operations::UpdateService do
         end
       end
     end
+
+    context 'tracing setting' do
+      context 'with valid params' do
+        let(:params) do
+          {
+            tracing_setting_attributes: {
+              external_url: 'http://some-url.com'
+            }
+          }
+        end
+
+        context 'with an existing setting' do
+          before do
+            create(:project_tracing_setting, project: project)
+          end
+
+          shared_examples 'setting deletion' do
+            let!(:original_params) { params.deep_dup }
+
+            it 'deletes the setting' do
+              expect(result[:status]).to eq(:success)
+              expect(project.reload.tracing_setting).to be_nil
+            end
+
+            it 'does not modify original params' do
+              subject.execute
+
+              expect(params).to eq(original_params)
+            end
+          end
+
+          it 'updates the setting' do
+            expect(project.tracing_setting).not_to be_nil
+
+            expect(result[:status]).to eq(:success)
+            expect(project.reload.tracing_setting.external_url)
+              .to eq('http://some-url.com')
+          end
+
+          context 'with missing external_url' do
+            before do
+              params[:tracing_setting_attributes].delete(:external_url)
+            end
+
+            it_behaves_like 'setting deletion'
+          end
+
+          context 'with empty external_url' do
+            before do
+              params[:tracing_setting_attributes][:external_url] = ''
+            end
+
+            it_behaves_like 'setting deletion'
+          end
+
+          context 'with blank external_url' do
+            before do
+              params[:tracing_setting_attributes][:external_url] = ' '
+            end
+
+            it_behaves_like 'setting deletion'
+          end
+        end
+
+        context 'without an existing setting' do
+          it 'creates a setting' do
+            expect(project.tracing_setting).to be_nil
+
+            expect(result[:status]).to eq(:success)
+            expect(project.reload.tracing_setting.external_url)
+              .to eq('http://some-url.com')
+          end
+        end
+      end
+
+      context 'with empty params' do
+        let(:params) { {} }
+
+        let!(:tracing_setting) do
+          create(:project_tracing_setting, project: project)
+        end
+
+        it 'does nothing' do
+          expect(result[:status]).to eq(:success)
+          expect(project.reload.tracing_setting).to eq(tracing_setting)
+        end
+      end
+    end
   end
 end