1 files changed, 52 insertions, 0 deletions
diff --git a/spec/lib/banzai/filter/inline_observability_filter_spec.rb b/spec/lib/banzai/filter/inline_observability_filter_spec.rb
index fb1ba46e76c..69a9dc96c2c 100644
--- a/spec/lib/banzai/filter/inline_observability_filter_spec.rb
+++ b/spec/lib/banzai/filter/inline_observability_filter_spec.rb
@@ -34,6 +34,58 @@ RSpec.describe Banzai::Filter::InlineObservabilityFilter do
       end
     end
 
+    context 'when the document contains an embeddable observability link with redirect' do
+      let(:url) { 'https://observe.gitlab.com@example.com/12345' }
+
+      it 'leaves the original link unchanged' do
+        expect(doc.at_css('a').to_s).to eq(input)
+      end
+
+      it 'does not append an observability charts placeholder' do
+        node = doc.at_css('.js-render-observability')
+
+        expect(node).not_to be_present
+      end
+    end
+
+    context 'when the document contains an embeddable observability link with different port' do
+      let(:url) { 'https://observe.gitlab.com:3000/12345' }
+      let(:observe_url) { 'https://observe.gitlab.com:3001' }
+
+      before do
+        stub_env('OVERRIDE_OBSERVABILITY_URL', observe_url)
+      end
+
+      it 'leaves the original link unchanged' do
+        expect(doc.at_css('a').to_s).to eq(input)
+      end
+
+      it 'does not append an observability charts placeholder' do
+        node = doc.at_css('.js-render-observability')
+
+        expect(node).not_to be_present
+      end
+    end
+
+    context 'when the document contains an embeddable observability link with auth/start' do
+      let(:url) { 'https://observe.gitlab.com/auth/start' }
+      let(:observe_url) { 'https://observe.gitlab.com' }
+
+      before do
+        stub_env('OVERRIDE_OBSERVABILITY_URL', observe_url)
+      end
+
+      it 'leaves the original link unchanged' do
+        expect(doc.at_css('a').to_s).to eq(input)
+      end
+
+      it 'does not append an observability charts placeholder' do
+        node = doc.at_css('.js-render-observability')
+
+        expect(node).not_to be_present
+      end
+    end
+
     context 'when feature flag is disabled' do
       let(:url) { 'https://observe.gitlab.com/12345' }