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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Gitlab::Pagination::Keyset::InOperatorOptimization::OrderByColumns do
let(:columns) do
[
Gitlab::Pagination::Keyset::ColumnOrderDefinition.new(
attribute_name: :relative_position,
order_expression: Issue.arel_table[:relative_position].desc
),
Gitlab::Pagination::Keyset::ColumnOrderDefinition.new(
attribute_name: :id,
order_expression: Issue.arel_table[:id].desc
)
]
end
subject(:order_by_columns) { described_class.new(columns, Issue.arel_table) }
describe '#array_aggregated_column_names' do
it { expect(order_by_columns.array_aggregated_column_names).to eq(%w[issues_relative_position_array issues_id_array]) }
end
describe '#original_column_names' do
it { expect(order_by_columns.original_column_names).to eq(%w[relative_position id]) }
end
describe '#cursor_values' do
it 'returns the keyset pagination cursor values from the column arrays as SQL expression' do
expect(order_by_columns.cursor_values('tbl')).to eq({
"id" => "tbl.issues_id_array[position]",
"relative_position" => "tbl.issues_relative_position_array[position]"
})
end
end
end
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