1 files changed, 17 insertions, 0 deletions
diff --git a/spec/initializers/postgresql_cte_spec.rb b/spec/initializers/postgresql_cte_spec.rb
new file mode 100644
index 00000000000..66dcb905491
--- /dev/null
+++ b/spec/initializers/postgresql_cte_spec.rb
@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe 'ActiveRecord::Relation patch for PostgreSQL WITH statements', feature_category: :database do
+  describe 'ActiveRecord::Relation::WithChain#recursive' do
+    subject(:relation) { User.with.recursive }
+
+    it 'sets recursive value flag on the relation' do
+      expect(relation.recursive_value).to eq(true)
+    end
+
+    it 'raises an error when #update_all is called' do
+      expect { relation.update_all(attribute: 42) }.to raise_exception(ActiveRecord::ReadOnlyRecord)
+    end
+  end
+end