1 files changed, 47 insertions, 0 deletions
diff --git a/spec/services/work_items/parent_links/destroy_service_spec.rb b/spec/services/work_items/parent_links/destroy_service_spec.rb
new file mode 100644
index 00000000000..574b70af397
--- /dev/null
+++ b/spec/services/work_items/parent_links/destroy_service_spec.rb
@@ -0,0 +1,47 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe WorkItems::ParentLinks::DestroyService do
+  describe '#execute' do
+    let_it_be(:reporter) { create(:user) }
+    let_it_be(:guest) { create(:user) }
+    let_it_be(:project) { create(:project) }
+    let_it_be(:work_item) { create(:work_item, project: project) }
+    let_it_be(:task) { create(:work_item, :task, project: project) }
+    let_it_be(:parent_link) { create(:parent_link, work_item: task, work_item_parent: work_item)}
+
+    let(:parent_link_class) { WorkItems::ParentLink }
+
+    subject { described_class.new(parent_link, user).execute }
+
+    before do
+      project.add_reporter(reporter)
+      project.add_guest(guest)
+    end
+
+    context 'when user has permissions to update work items' do
+      let(:user) { reporter }
+
+      it 'removes relation' do
+        expect { subject }.to change(parent_link_class, :count).by(-1)
+      end
+
+      it 'returns success message' do
+        is_expected.to eq(message: 'Relation was removed', status: :success)
+      end
+    end
+
+    context 'when user has insufficient permissions' do
+      let(:user) { guest }
+
+      it 'does not remove relation' do
+        expect { subject }.not_to change(parent_link_class, :count).from(1)
+      end
+
+      it 'returns error message' do
+        is_expected.to eq(message: 'No Work Item Link found', status: :error, http_status: 404)
+      end
+    end
+  end
+end