1 files changed, 17 insertions, 0 deletions
diff --git a/spec/support/shared_examples/controllers/environments_controller_shared_examples.rb b/spec/support/shared_examples/controllers/environments_controller_shared_examples.rb
index c6e880635aa..a79b94209f3 100644
--- a/spec/support/shared_examples/controllers/environments_controller_shared_examples.rb
+++ b/spec/support/shared_examples/controllers/environments_controller_shared_examples.rb
@@ -65,3 +65,20 @@ RSpec.shared_examples 'failed response for #cancel_auto_stop' do
     end
   end
 end
+
+RSpec.shared_examples 'avoids N+1 queries on environment detail page' do
+  render_views
+
+  before do
+    create_deployment_with_associations(sequence: 0)
+  end
+
+  it 'avoids N+1 queries' do
+    control = ActiveRecord::QueryRecorder.new { get :show, params: environment_params }
+
+    create_deployment_with_associations(sequence: 1)
+    create_deployment_with_associations(sequence: 2)
+
+    expect { get :show, params: environment_params }.not_to exceed_query_limit(control.count).with_threshold(34)
+  end
+end