1 files changed, 36 insertions, 0 deletions
diff --git a/spec/services/work_items/widgets/weight_service/update_service_spec.rb b/spec/services/work_items/widgets/weight_service/update_service_spec.rb
new file mode 100644
index 00000000000..97e17f1c526
--- /dev/null
+++ b/spec/services/work_items/widgets/weight_service/update_service_spec.rb
@@ -0,0 +1,36 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe WorkItems::Widgets::WeightService::UpdateService do
+  let_it_be(:user) { create(:user) }
+  let_it_be(:project) { create(:project) }
+  let_it_be_with_reload(:work_item) { create(:work_item, project: project, weight: 1) }
+
+  let(:widget) { work_item.widgets.find {|widget| widget.is_a?(WorkItems::Widgets::Weight) } }
+
+  describe '#update' do
+    subject { described_class.new(widget: widget, current_user: user).update(params: params) } # rubocop:disable Rails/SaveBang
+
+    context 'when weight param is present' do
+      let(:params) { { weight: 2 } }
+
+      it 'correctly sets work item weight value' do
+        subject
+
+        expect(work_item.weight).to eq(2)
+      end
+    end
+
+    context 'when weight param is not present' do
+      let(:params) { {} }
+
+      it 'does not change work item weight value', :aggregate_failures do
+        expect { subject }
+          .to not_change { work_item.weight }
+
+        expect(work_item.weight).to eq(1)
+      end
+    end
+  end
+end