1 files changed, 19 insertions, 0 deletions
diff --git a/spec/lib/gitlab/pagination/keyset/in_operator_optimization/array_scope_columns_spec.rb b/spec/lib/gitlab/pagination/keyset/in_operator_optimization/array_scope_columns_spec.rb
new file mode 100644
index 00000000000..2cebf0d9473
--- /dev/null
+++ b/spec/lib/gitlab/pagination/keyset/in_operator_optimization/array_scope_columns_spec.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::Pagination::Keyset::InOperatorOptimization::ArrayScopeColumns do
+  let(:columns) { [:relative_position, :id] }
+
+  subject(:array_scope_columns) { described_class.new(columns) }
+
+  it 'builds array column names' do
+    expect(array_scope_columns.array_aggregated_column_names).to eq(%w[array_cte_relative_position_array array_cte_id_array])
+  end
+
+  context 'when no columns are given' do
+    let(:columns) { [] }
+
+    it { expect { array_scope_columns }.to raise_error /No array columns were given/ }
+  end
+end