70 lines
1.8 KiB
Ruby
70 lines
1.8 KiB
Ruby
|
# frozen_string_literal: true
|
||
|
|
|
||
|
|
require 'spec_helper'
|
||
|
|
|
||
|
|
RSpec.describe ResolvesGroups do
|
||
|
|
include GraphqlHelpers
|
||
|
|
include AfterNextHelpers
|
||
|
|
|
||
|
|
let_it_be(:user) { create(:user) }
|
||
|
|
let_it_be(:groups) { create_pair(:group) }
|
||
|
|
|
||
|
|
let_it_be(:resolver) do
|
||
|
|
Class.new(Resolvers::BaseResolver) do
|
||
|
|
include ResolvesGroups
|
||
|
|
type Types::GroupType, null: true
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
let_it_be(:query_type) do
|
||
|
|
query_factory do |query|
|
||
|
|
query.field :groups,
|
||
|
|
Types::GroupType.connection_type,
|
||
|
|
null: true,
|
||
|
|
resolver: resolver
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
let_it_be(:lookahead_fields) do
|
||
|
|
<<~FIELDS
|
||
|
|
containerRepositoriesCount
|
||
|
|
customEmoji { nodes { id } }
|
||
|
|
fullPath
|
||
|
|
path
|
||
|
|
dependencyProxyBlobCount
|
||
|
|
dependencyProxyBlobs { nodes { fileName } }
|
||
|
|
dependencyProxyImageCount
|
||
|
|
dependencyProxyImageTtlPolicy { enabled }
|
||
|
|
dependencyProxySetting { enabled }
|
||
|
|
FIELDS
|
||
|
|
end
|
||
|
|
|
||
|
|
it 'avoids N+1 queries on the fields marked with lookahead' do
|
||
|
|
group_ids = groups.map(&:id)
|
||
|
|
|
||
|
|
allow_next(resolver).to receive(:resolve_groups).and_return(Group.id_in(group_ids))
|
||
|
|
# Prevent authorization queries from affecting the test.
|
||
|
|
allow(Ability).to receive(:allowed?).and_return(true)
|
||
|
|
|
||
|
|
single_group_query = ActiveRecord::QueryRecorder.new do
|
||
|
|
data = query_groups(limit: 1)
|
||
|
|
expect(data.size).to eq(1)
|
||
|
|
end
|
||
|
|
|
||
|
|
multi_group_query = -> {
|
||
|
|
data = query_groups(limit: 2)
|
||
|
|
expect(data.size).to eq(2)
|
||
|
|
}
|
||
|
|
|
||
|
|
expect { multi_group_query.call }.not_to exceed_query_limit(single_group_query)
|
||
|
|
end
|
||
|
|
|
||
|
|
def query_groups(limit:)
|
||
|
|
query_string = "{ groups(first: #{limit}) { nodes { id #{lookahead_fields} } } }"
|
||
|
|
|
||
|
|
data = execute_query(query_type, graphql: query_string)
|
||
|
|
|
||
|
|
graphql_dig_at(data, :data, :groups, :nodes)
|
||
|
|
end
|
||
|
|
end
|