1 files changed, 36 insertions, 0 deletions
diff --git a/spec/views/pwa/manifest.json.erb_spec.rb b/spec/views/pwa/manifest.json.erb_spec.rb
new file mode 100644
index 00000000000..a5075bfe6fe
--- /dev/null
+++ b/spec/views/pwa/manifest.json.erb_spec.rb
@@ -0,0 +1,36 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe 'pwa/manifest', feature_category: :navigation do
+  describe 'view caching', :use_clean_rails_memory_store_fragment_caching do
+    let(:appearance) { build_stubbed(:appearance, pwa_name: 'My GitLab') }
+
+    context 'when appearance is unchanged' do
+      it 'reuses the cached view' do
+        allow(view).to receive(:current_appearance).and_return(appearance)
+        allow(view).to receive(:appearance_pwa_name).and_call_original
+        render
+        render
+
+        expect(view).to have_received(:appearance_pwa_name).once
+      end
+    end
+
+    context 'when appearance has changed' do
+      let(:changed_appearance) { build_stubbed(:appearance, pwa_name: 'My new GitLab') }
+
+      it 'does not use the cached view' do
+        allow(view).to receive(:current_appearance).and_return(appearance)
+        allow(view).to receive(:appearance_pwa_name).and_call_original
+        render
+
+        allow(view).to receive(:current_appearance).and_return(changed_appearance)
+        render
+
+        expect(view).to have_received(:appearance_pwa_name).twice
+        expect(rendered).to have_content 'My new GitLab'
+      end
+    end
+  end
+end