debian-mirror-gitlab/spec/models/preloaders/commit_status_preloader_spec.rb

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2021-11-11 11:23:49 +05:30
# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Preloaders::CommitStatusPreloader do
let_it_be(:pipeline) { create(:ci_pipeline) }
let_it_be(:build1) { create(:ci_build, :tags, pipeline: pipeline) }
let_it_be(:build2) { create(:ci_build, :tags, pipeline: pipeline) }
let_it_be(:bridge1) { create(:ci_bridge, pipeline: pipeline) }
let_it_be(:bridge2) { create(:ci_bridge, pipeline: pipeline) }
let_it_be(:generic_commit_status1) { create(:generic_commit_status, pipeline: pipeline) }
let_it_be(:generic_commit_status2) { create(:generic_commit_status, pipeline: pipeline) }
describe '#execute' do
let(:relations) { %i[pipeline metadata tags job_artifacts_archive downstream_pipeline] }
let(:statuses) { CommitStatus.where(commit_id: pipeline.id).all }
subject(:execute) { described_class.new(statuses).execute(relations) }
it 'prevents N+1 for specified relations', :use_sql_query_cache do
execute
control_count = ActiveRecord::QueryRecorder.new(skip_cached: false) do
call_each_relation(statuses.sample(3))
end
expect do
call_each_relation(statuses)
end.to issue_same_number_of_queries_as(control_count)
end
private
def call_each_relation(statuses)
statuses.each do |status|
relations.each { |relation| status.public_send(relation) if status.respond_to?(relation) }
end
end
end
end