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-rw-r--r--spec/requests/search_controller_spec.rb66
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diff --git a/spec/requests/search_controller_spec.rb b/spec/requests/search_controller_spec.rb
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+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe SearchController, type: :request do
+ let_it_be(:user) { create(:user) }
+ let_it_be(:group) { create(:group) }
+ let_it_be(:project) { create(:project, :public, :repository, :wiki_repo, name: 'awesome project', group: group) }
+
+ before_all do
+ login_as(user)
+ end
+
+ def send_search_request(params)
+ get search_path, params: params
+ end
+
+ shared_examples 'an efficient database result' do
+ it 'avoids N+1 database queries' do
+ create(object, *creation_traits, creation_args)
+
+ control = ActiveRecord::QueryRecorder.new(skip_cached: false) { send_search_request(params) }
+ create_list(object, 3, *creation_traits, creation_args)
+
+ expect { send_search_request(params) }.not_to exceed_all_query_limit(control).with_threshold(threshold)
+ end
+ end
+
+ describe 'GET /search' do
+ let(:creation_traits) { [] }
+
+ context 'for issues scope' do
+ let(:object) { :issue }
+ let(:creation_args) { { project: project } }
+ let(:params) { { search: '*', scope: 'issues' } }
+ let(:threshold) { 0 }
+
+ it_behaves_like 'an efficient database result'
+ end
+
+ context 'for merge_request scope' do
+ let(:creation_traits) { [:unique_branches] }
+ let(:object) { :merge_request }
+ let(:creation_args) { { source_project: project } }
+ let(:params) { { search: '*', scope: 'merge_requests' } }
+ let(:threshold) { 0 }
+
+ it_behaves_like 'an efficient database result'
+ end
+
+ context 'for project scope' do
+ let(:creation_traits) { [:public] }
+ let(:object) { :project }
+ let(:creation_args) { {} }
+ let(:params) { { search: '*', scope: 'projects' } }
+ # some N+1 queries still exist
+ # each project requires 3 extra queries
+ # - one count for forks
+ # - one count for open MRs
+ # - one count for open Issues
+ let(:threshold) { 9 }
+
+ it_behaves_like 'an efficient database result'
+ end
+ end
+end