1 files changed, 46 insertions, 0 deletions
diff --git a/spec/services/service_desk_settings/update_service_spec.rb b/spec/services/service_desk_settings/update_service_spec.rb
new file mode 100644
index 00000000000..8b920d536b4
--- /dev/null
+++ b/spec/services/service_desk_settings/update_service_spec.rb
@@ -0,0 +1,46 @@
+# frozen_string_literal: true
+require 'spec_helper'
+
+RSpec.describe ServiceDeskSettings::UpdateService do
+  describe '#execute' do
+    let_it_be(:settings) { create(:service_desk_setting, outgoing_name: 'original name') }
+    let_it_be(:user) { create(:user) }
+
+    context 'with valid params' do
+      let(:params) { { outgoing_name: 'some name', project_key: 'foo' } }
+
+      it 'updates service desk settings' do
+        result = described_class.new(settings.project, user, params).execute
+
+        expect(result[:status]).to eq :success
+        expect(settings.reload.outgoing_name).to eq 'some name'
+        expect(settings.reload.project_key).to eq 'foo'
+      end
+
+      context 'when service_desk_custom_address is disabled' do
+        before do
+          stub_feature_flags(service_desk_custom_address: false)
+        end
+
+        it 'ignores project_key parameter' do
+          result = described_class.new(settings.project, user, params).execute
+
+          expect(result[:status]).to eq :success
+          expect(settings.reload.project_key).to be_nil
+        end
+      end
+    end
+
+    context 'with invalid params' do
+      let(:params) { { outgoing_name: 'x' * 256 } }
+
+      it 'does not update service desk settings' do
+        result = described_class.new(settings.project, user, params).execute
+
+        expect(result[:status]).to eq :error
+        expect(result[:message]).to eq 'Outgoing name is too long (maximum is 255 characters)'
+        expect(settings.reload.outgoing_name).to eq 'original name'
+      end
+    end
+  end
+end