1 files changed, 59 insertions, 0 deletions
diff --git a/spec/views/projects/tracing/show.html.haml_spec.rb b/spec/views/projects/tracing/show.html.haml_spec.rb
new file mode 100644
index 00000000000..96dc6a18fc7
--- /dev/null
+++ b/spec/views/projects/tracing/show.html.haml_spec.rb
@@ -0,0 +1,59 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe 'projects/tracings/show' do
+  let_it_be_with_reload(:project) { create(:project) }
+  let_it_be(:error_tracking_setting) { create(:project_error_tracking_setting, project: project) }
+
+  before do
+    assign(:project, project)
+    allow(view).to receive(:error_tracking_setting)
+      .and_return(error_tracking_setting)
+  end
+
+  context 'with project.tracing_external_url' do
+    let_it_be(:tracing_url) { 'https://tracing.url' }
+    let_it_be(:tracing_setting) { create(:project_tracing_setting, project: project, external_url: tracing_url) }
+
+    before do
+      allow(view).to receive(:can?).and_return(true)
+      allow(view).to receive(:tracing_setting).and_return(tracing_setting)
+    end
+
+    it 'renders iframe' do
+      render
+
+      expect(rendered).to match(/iframe/)
+    end
+
+    context 'with malicious external_url' do
+      let(:malicious_tracing_url) { "https://replaceme.com/'><script>alert(document.cookie)</script>" }
+      let(:cleaned_url) { "https://replaceme.com/'&gt;" }
+
+      before do
+        tracing_setting.update_column(:external_url, malicious_tracing_url)
+      end
+
+      it 'sanitizes external_url' do
+        render
+
+        expect(tracing_setting.external_url).to eq(malicious_tracing_url)
+        expect(rendered).to have_xpath("//iframe[@src=\"#{cleaned_url}\"]")
+      end
+    end
+  end
+
+  context 'without project.tracing_external_url' do
+    before do
+      allow(view).to receive(:can?).and_return(true)
+    end
+
+    it 'renders empty state' do
+      render
+
+      expect(rendered).to have_link('Add Jaeger URL')
+      expect(rendered).not_to match(/iframe/)
+    end
+  end
+end