1 files changed, 58 insertions, 0 deletions
diff --git a/spec/finders/incident_management/timeline_event_tags_finder_spec.rb b/spec/finders/incident_management/timeline_event_tags_finder_spec.rb
new file mode 100644
index 00000000000..5bdb356ff62
--- /dev/null
+++ b/spec/finders/incident_management/timeline_event_tags_finder_spec.rb
@@ -0,0 +1,58 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe IncidentManagement::TimelineEventTagsFinder do
+  let_it_be(:user) { create(:user) }
+  let_it_be(:project) { create(:project) }
+  let_it_be(:incident) { create(:incident, project: project) }
+  let_it_be(:timeline_event) do
+    create(:incident_management_timeline_event, project: project, incident: incident, occurred_at: Time.current)
+  end
+
+  let_it_be(:timeline_event_tag) do
+    create(:incident_management_timeline_event_tag, project: project)
+  end
+
+  let_it_be(:timeline_event_tag_link) do
+    create(:incident_management_timeline_event_tag_link,
+      timeline_event: timeline_event,
+      timeline_event_tag: timeline_event_tag)
+  end
+
+  let(:params) { {} }
+
+  describe '#execute' do
+    subject(:execute) { described_class.new(user, timeline_event, params).execute }
+
+    context 'when user has permissions' do
+      before do
+        project.add_guest(user)
+      end
+
+      it 'returns tags on the event' do
+        is_expected.to match_array([timeline_event_tag])
+      end
+
+      context 'when event does not have tags' do
+        let(:timeline_event) do
+          create(:incident_management_timeline_event, project: project, incident: incident, occurred_at: Time.current)
+        end
+
+        it 'returns empty result' do
+          is_expected.to match_array([])
+        end
+      end
+
+      context 'when timeline event is nil' do
+        let(:timeline_event) { nil }
+
+        it { is_expected.to eq(IncidentManagement::TimelineEventTag.none) }
+      end
+    end
+
+    context 'when user does not have permissions' do
+      it { is_expected.to eq(IncidentManagement::TimelineEventTag.none) }
+    end
+  end
+end