gitlab-org--gitlab-foss/spec/graphql/resolvers/issues_resolver_spec.rb
Jan Provaznik 5ee7884d91 GraphQL - Add extra complexity for resolvers
If a field is a resolver, its complexity is automatically
increased. By default we add extra points for sort and search
arguments (which will be common for various resolvers).

For specific resolvers we add field-specific complexity, e.g.
for Issues complexity is increased if we filter issues by `labelName`
(because then SQL query is more complex). We may want to tune these
values in future depending on real-life results.

Complexity is also dependent on the number of loaded nodes, but only
if we don't search by specific ID(s). Also added complexity is limited
(by default only twice more than child complexity) - the reason is
that although it's more complex to process more items, the complexity
increase is not linear (there is not so much difference between loading
10, 20 or 100 records from DB).
2019-05-06 21:24:19 +00:00

133 lines
4.5 KiB
Ruby

require 'spec_helper'
describe Resolvers::IssuesResolver do
include GraphqlHelpers
let(:current_user) { create(:user) }
context "with a project" do
set(:project) { create(:project) }
set(:issue1) { create(:issue, project: project, state: :opened, created_at: 3.hours.ago, updated_at: 3.hours.ago) }
set(:issue2) { create(:issue, project: project, state: :closed, title: 'foo', created_at: 1.hour.ago, updated_at: 1.hour.ago, closed_at: 1.hour.ago) }
set(:label1) { create(:label, project: project) }
set(:label2) { create(:label, project: project) }
before do
project.add_developer(current_user)
create(:label_link, label: label1, target: issue1)
create(:label_link, label: label1, target: issue2)
create(:label_link, label: label2, target: issue2)
end
describe '#resolve' do
it 'finds all issues' do
expect(resolve_issues).to contain_exactly(issue1, issue2)
end
it 'filters by state' do
expect(resolve_issues(state: 'opened')).to contain_exactly(issue1)
expect(resolve_issues(state: 'closed')).to contain_exactly(issue2)
end
it 'filters by labels' do
expect(resolve_issues(label_name: [label1.title])).to contain_exactly(issue1, issue2)
expect(resolve_issues(label_name: [label1.title, label2.title])).to contain_exactly(issue2)
end
describe 'filters by created_at' do
it 'filters by created_before' do
expect(resolve_issues(created_before: 2.hours.ago)).to contain_exactly(issue1)
end
it 'filters by created_after' do
expect(resolve_issues(created_after: 2.hours.ago)).to contain_exactly(issue2)
end
end
describe 'filters by updated_at' do
it 'filters by updated_before' do
expect(resolve_issues(updated_before: 2.hours.ago)).to contain_exactly(issue1)
end
it 'filters by updated_after' do
expect(resolve_issues(updated_after: 2.hours.ago)).to contain_exactly(issue2)
end
end
describe 'filters by closed_at' do
let!(:issue3) { create(:issue, project: project, state: :closed, closed_at: 3.hours.ago) }
it 'filters by closed_before' do
expect(resolve_issues(closed_before: 2.hours.ago)).to contain_exactly(issue3)
end
it 'filters by closed_after' do
expect(resolve_issues(closed_after: 2.hours.ago)).to contain_exactly(issue2)
end
end
it 'searches issues' do
expect(resolve_issues(search: 'foo')).to contain_exactly(issue2)
end
it 'sort issues' do
expect(resolve_issues(sort: 'created_desc')).to eq [issue2, issue1]
end
it 'returns issues user can see' do
project.add_guest(current_user)
create(:issue, confidential: true)
expect(resolve_issues).to contain_exactly(issue1, issue2)
end
it 'finds a specific issue with iid' do
expect(resolve_issues(iid: issue1.iid)).to contain_exactly(issue1)
end
it 'finds a specific issue with iids' do
expect(resolve_issues(iids: issue1.iid)).to contain_exactly(issue1)
end
it 'finds multiple issues with iids' do
expect(resolve_issues(iids: [issue1.iid, issue2.iid]))
.to contain_exactly(issue1, issue2)
end
it 'finds only the issues within the project we are looking at' do
another_project = create(:project)
iids = [issue1, issue2].map(&:iid)
iids.each do |iid|
create(:issue, project: another_project, iid: iid)
end
expect(resolve_issues(iids: iids)).to contain_exactly(issue1, issue2)
end
end
end
context "when passing a non existent, batch loaded project" do
let(:project) do
BatchLoader.for("non-existent-path").batch do |_fake_paths, loader, _|
loader.call("non-existent-path", nil)
end
end
it "returns nil without breaking" do
expect(resolve_issues(iids: ["don't", "break"])).to be_empty
end
end
it 'increases field complexity based on arguments' do
field = Types::BaseField.new(name: 'test', type: GraphQL::STRING_TYPE, resolver_class: described_class, null: false, max_page_size: 100)
expect(field.to_graphql.complexity.call({}, {}, 1)).to eq 4
expect(field.to_graphql.complexity.call({}, { labelName: 'foo' }, 1)).to eq 8
end
def resolve_issues(args = {}, context = { current_user: current_user })
resolve(described_class, obj: project, args: args, ctx: context)
end
end