debian-mirror-gitlab/spec/support/shared_examples/graphql/n_plus_one_query_examples.rb
2022-11-25 23:54:43 +05:30

23 lines
831 B
Ruby

# frozen_string_literal: true
RSpec.shared_examples 'N+1 query check' do |threshold: 0, skip_cached: true|
it 'prevents N+1 queries' do
execute_query # "warm up" to prevent undeterministic counts
expect(graphql_errors).to be_blank # Sanity check - ex falso quodlibet!
control = ActiveRecord::QueryRecorder.new(skip_cached: skip_cached) { execute_query }
expect(control.count).to be > 0
search_params[:iids] << extra_iid_for_second_query
expect { execute_query }.not_to exceed_query_count_limit(control, skip_cached: skip_cached, threshold: threshold)
end
def exceed_query_count_limit(control, skip_cached: true, threshold: 0)
if skip_cached
exceed_query_limit(control).with_threshold(threshold)
else
exceed_all_query_limit(control).with_threshold(threshold)
end
end
end