a1088c7a31
Signed-off-by: Rémy Coutable <remy@rymai.me>
399 lines
14 KiB
Ruby
399 lines
14 KiB
Ruby
require 'spec_helper'
|
|
|
|
describe API::Helpers::Pagination do
|
|
let(:resource) { Project.all }
|
|
let(:custom_port) { 8080 }
|
|
let(:incoming_api_projects_url) { "#{Gitlab.config.gitlab.url}:#{custom_port}/api/v4/projects" }
|
|
|
|
before do
|
|
stub_config_setting(port: custom_port)
|
|
end
|
|
|
|
subject do
|
|
Class.new.include(described_class).new
|
|
end
|
|
|
|
describe '#paginate (keyset pagination)' do
|
|
let(:value) { spy('return value') }
|
|
let(:base_query) do
|
|
{
|
|
pagination: 'keyset',
|
|
foo: 'bar',
|
|
bar: 'baz'
|
|
}
|
|
end
|
|
let(:query) { base_query }
|
|
|
|
before do
|
|
allow(subject).to receive(:header).and_return(value)
|
|
allow(subject).to receive(:params).and_return(query)
|
|
allow(subject).to receive(:request).and_return(double(url: "#{incoming_api_projects_url}?#{query.to_query}"))
|
|
end
|
|
|
|
context 'when resource can be paginated' do
|
|
let!(:projects) do
|
|
[
|
|
create(:project, name: 'One'),
|
|
create(:project, name: 'Two'),
|
|
create(:project, name: 'Three')
|
|
].sort_by { |e| -e.id } # sort by id desc (this is the default sort order for the API)
|
|
end
|
|
|
|
describe 'first page' do
|
|
let(:query) { base_query.merge(per_page: 2) }
|
|
|
|
it 'returns appropriate amount of resources' do
|
|
expect(subject.paginate(resource).count).to eq 2
|
|
end
|
|
|
|
it 'returns the first two records (by id desc)' do
|
|
expect(subject.paginate(resource)).to eq(projects[0..1])
|
|
end
|
|
|
|
it 'adds appropriate headers' do
|
|
expect_header('X-Per-Page', '2')
|
|
expect_header('X-Next-Page', "#{incoming_api_projects_url}?#{query.merge(ks_prev_id: projects[1].id).to_query}")
|
|
|
|
expect_header('Link', anything) do |_key, val|
|
|
expect(val).to include('rel="next"')
|
|
end
|
|
|
|
subject.paginate(resource)
|
|
end
|
|
end
|
|
|
|
describe 'second page' do
|
|
let(:query) { base_query.merge(per_page: 2, ks_prev_id: projects[1].id) }
|
|
|
|
it 'returns appropriate amount of resources' do
|
|
expect(subject.paginate(resource).count).to eq 1
|
|
end
|
|
|
|
it 'returns the third record' do
|
|
expect(subject.paginate(resource)).to eq(projects[2..2])
|
|
end
|
|
|
|
it 'adds appropriate headers' do
|
|
expect_header('X-Per-Page', '2')
|
|
expect_header('X-Next-Page', "#{incoming_api_projects_url}?#{query.merge(ks_prev_id: projects[2].id).to_query}")
|
|
|
|
expect_header('Link', anything) do |_key, val|
|
|
expect(val).to include('rel="next"')
|
|
end
|
|
|
|
subject.paginate(resource)
|
|
end
|
|
end
|
|
|
|
describe 'third page' do
|
|
let(:query) { base_query.merge(per_page: 2, ks_prev_id: projects[2].id) }
|
|
|
|
it 'returns appropriate amount of resources' do
|
|
expect(subject.paginate(resource).count).to eq 0
|
|
end
|
|
|
|
it 'adds appropriate headers' do
|
|
expect_header('X-Per-Page', '2')
|
|
expect_no_header('X-Next-Page')
|
|
expect(subject).not_to receive(:header).with('Link')
|
|
|
|
subject.paginate(resource)
|
|
end
|
|
end
|
|
|
|
context 'if order' do
|
|
context 'is not present' do
|
|
let(:query) { base_query.merge(per_page: 2) }
|
|
|
|
it 'is not present it adds default order(:id) desc' do
|
|
resource.order_values = []
|
|
|
|
paginated_relation = subject.paginate(resource)
|
|
|
|
expect(resource.order_values).to be_empty
|
|
expect(paginated_relation.order_values).to be_present
|
|
expect(paginated_relation.order_values.size).to eq(1)
|
|
expect(paginated_relation.order_values.first).to be_descending
|
|
expect(paginated_relation.order_values.first.expr.name).to eq :id
|
|
end
|
|
end
|
|
|
|
context 'is present' do
|
|
let(:resource) { Project.all.order(name: :desc) }
|
|
let!(:projects) do
|
|
[
|
|
create(:project, name: 'One'),
|
|
create(:project, name: 'Two'),
|
|
create(:project, name: 'Three'),
|
|
create(:project, name: 'Three'), # Note the duplicate name
|
|
create(:project, name: 'Four'),
|
|
create(:project, name: 'Five'),
|
|
create(:project, name: 'Six')
|
|
]
|
|
|
|
# if we sort this by name descending, id descending, this yields:
|
|
# {
|
|
# 2 => "Two",
|
|
# 4 => "Three",
|
|
# 3 => "Three",
|
|
# 7 => "Six",
|
|
# 1 => "One",
|
|
# 5 => "Four",
|
|
# 6 => "Five"
|
|
# }
|
|
#
|
|
# (key is the id)
|
|
end
|
|
|
|
it 'also orders by primary key' do
|
|
paginated_relation = subject.paginate(resource)
|
|
|
|
expect(paginated_relation.order_values).to be_present
|
|
expect(paginated_relation.order_values.size).to eq(2)
|
|
expect(paginated_relation.order_values.first).to be_descending
|
|
expect(paginated_relation.order_values.first.expr.name).to eq :name
|
|
expect(paginated_relation.order_values.second).to be_descending
|
|
expect(paginated_relation.order_values.second.expr.name).to eq :id
|
|
end
|
|
|
|
it 'returns the right records (first page)' do
|
|
result = subject.paginate(resource)
|
|
|
|
expect(result.first).to eq(projects[1])
|
|
expect(result.second).to eq(projects[3])
|
|
end
|
|
|
|
describe 'second page' do
|
|
let(:query) { base_query.merge(ks_prev_id: projects[3].id, ks_prev_name: projects[3].name, per_page: 2) }
|
|
|
|
it 'returns the right records (second page)' do
|
|
result = subject.paginate(resource)
|
|
|
|
expect(result.first).to eq(projects[2])
|
|
expect(result.second).to eq(projects[6])
|
|
end
|
|
|
|
it 'returns the right link to the next page' do
|
|
expect_header('X-Per-Page', '2')
|
|
expect_header('X-Next-Page', "#{incoming_api_projects_url}?#{query.merge(ks_prev_id: projects[6].id, ks_prev_name: projects[6].name).to_query}")
|
|
expect_header('Link', anything) do |_key, val|
|
|
expect(val).to include('rel="next"')
|
|
end
|
|
|
|
subject.paginate(resource)
|
|
end
|
|
end
|
|
|
|
describe 'third page' do
|
|
let(:query) { base_query.merge(ks_prev_id: projects[6].id, ks_prev_name: projects[6].name, per_page: 5) }
|
|
|
|
it 'returns the right records (third page), note increased per_page' do
|
|
result = subject.paginate(resource)
|
|
|
|
expect(result.size).to eq(3)
|
|
expect(result.first).to eq(projects[0])
|
|
expect(result.second).to eq(projects[4])
|
|
expect(result.last).to eq(projects[5])
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
describe '#paginate (default offset-based pagination)' do
|
|
let(:value) { spy('return value') }
|
|
let(:base_query) { { foo: 'bar', bar: 'baz' } }
|
|
let(:query) { base_query }
|
|
|
|
before do
|
|
allow(subject).to receive(:header).and_return(value)
|
|
allow(subject).to receive(:params).and_return(query)
|
|
allow(subject).to receive(:request).and_return(double(url: "#{incoming_api_projects_url}?#{query.to_query}"))
|
|
end
|
|
|
|
context 'when resource can be paginated' do
|
|
before do
|
|
create_list(:project, 3)
|
|
end
|
|
|
|
describe 'first page' do
|
|
shared_examples 'response with pagination headers' do
|
|
it 'adds appropriate headers' do
|
|
expect_header('X-Total', '3')
|
|
expect_header('X-Total-Pages', '2')
|
|
expect_header('X-Per-Page', '2')
|
|
expect_header('X-Page', '1')
|
|
expect_header('X-Next-Page', '2')
|
|
expect_header('X-Prev-Page', '')
|
|
|
|
expect_header('Link', anything) do |_key, val|
|
|
expect(val).to include(%Q(<#{incoming_api_projects_url}?#{query.merge(page: 1).to_query}>; rel="first"))
|
|
expect(val).to include(%Q(<#{incoming_api_projects_url}?#{query.merge(page: 2).to_query}>; rel="last"))
|
|
expect(val).to include(%Q(<#{incoming_api_projects_url}?#{query.merge(page: 2).to_query}>; rel="next"))
|
|
expect(val).not_to include('rel="prev"')
|
|
end
|
|
|
|
subject.paginate(resource)
|
|
end
|
|
end
|
|
|
|
shared_examples 'paginated response' do
|
|
it 'returns appropriate amount of resources' do
|
|
expect(subject.paginate(resource).count).to eq 2
|
|
end
|
|
|
|
it 'executes only one SELECT COUNT query' do
|
|
expect { subject.paginate(resource) }.to make_queries_matching(/SELECT COUNT/, 1)
|
|
end
|
|
end
|
|
|
|
let(:query) { base_query.merge(page: 1, per_page: 2) }
|
|
|
|
context 'when the api_kaminari_count_with_limit feature flag is unset' do
|
|
it_behaves_like 'paginated response'
|
|
it_behaves_like 'response with pagination headers'
|
|
end
|
|
|
|
context 'when the api_kaminari_count_with_limit feature flag is disabled' do
|
|
before do
|
|
stub_feature_flags(api_kaminari_count_with_limit: false)
|
|
end
|
|
|
|
it_behaves_like 'paginated response'
|
|
it_behaves_like 'response with pagination headers'
|
|
end
|
|
|
|
context 'when the api_kaminari_count_with_limit feature flag is enabled' do
|
|
before do
|
|
stub_feature_flags(api_kaminari_count_with_limit: true)
|
|
end
|
|
|
|
context 'when resources count is less than MAX_COUNT_LIMIT' do
|
|
before do
|
|
stub_const("::Kaminari::ActiveRecordRelationMethods::MAX_COUNT_LIMIT", 4)
|
|
end
|
|
|
|
it_behaves_like 'paginated response'
|
|
it_behaves_like 'response with pagination headers'
|
|
end
|
|
|
|
context 'when resources count is more than MAX_COUNT_LIMIT' do
|
|
before do
|
|
stub_const("::Kaminari::ActiveRecordRelationMethods::MAX_COUNT_LIMIT", 2)
|
|
end
|
|
|
|
it_behaves_like 'paginated response'
|
|
|
|
it 'does not return the X-Total and X-Total-Pages headers' do
|
|
expect_no_header('X-Total')
|
|
expect_no_header('X-Total-Pages')
|
|
expect_header('X-Per-Page', '2')
|
|
expect_header('X-Page', '1')
|
|
expect_header('X-Next-Page', '2')
|
|
expect_header('X-Prev-Page', '')
|
|
|
|
expect_header('Link', anything) do |_key, val|
|
|
expect(val).to include(%Q(<#{incoming_api_projects_url}?#{query.merge(page: 1).to_query}>; rel="first"))
|
|
expect(val).to include(%Q(<#{incoming_api_projects_url}?#{query.merge(page: 2).to_query}>; rel="next"))
|
|
expect(val).not_to include('rel="last"')
|
|
expect(val).not_to include('rel="prev"')
|
|
end
|
|
|
|
subject.paginate(resource)
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
describe 'second page' do
|
|
let(:query) { base_query.merge(page: 2, per_page: 2) }
|
|
|
|
it 'returns appropriate amount of resources' do
|
|
expect(subject.paginate(resource).count).to eq 1
|
|
end
|
|
|
|
it 'adds appropriate headers' do
|
|
expect_header('X-Total', '3')
|
|
expect_header('X-Total-Pages', '2')
|
|
expect_header('X-Per-Page', '2')
|
|
expect_header('X-Page', '2')
|
|
expect_header('X-Next-Page', '')
|
|
expect_header('X-Prev-Page', '1')
|
|
|
|
expect_header('Link', anything) do |_key, val|
|
|
expect(val).to include(%Q(<#{incoming_api_projects_url}?#{query.merge(page: 1).to_query}>; rel="first"))
|
|
expect(val).to include(%Q(<#{incoming_api_projects_url}?#{query.merge(page: 2).to_query}>; rel="last"))
|
|
expect(val).to include(%Q(<#{incoming_api_projects_url}?#{query.merge(page: 1).to_query}>; rel="prev"))
|
|
expect(val).not_to include('rel="next"')
|
|
end
|
|
|
|
subject.paginate(resource)
|
|
end
|
|
end
|
|
|
|
context 'if order' do
|
|
it 'is not present it adds default order(:id) if no order is present' do
|
|
resource.order_values = []
|
|
|
|
paginated_relation = subject.paginate(resource)
|
|
|
|
expect(resource.order_values).to be_empty
|
|
expect(paginated_relation.order_values).to be_present
|
|
expect(paginated_relation.order_values.first).to be_ascending
|
|
expect(paginated_relation.order_values.first.expr.name).to eq :id
|
|
end
|
|
|
|
it 'is present it does not add anything' do
|
|
paginated_relation = subject.paginate(resource.order(created_at: :desc))
|
|
|
|
expect(paginated_relation.order_values).to be_present
|
|
expect(paginated_relation.order_values.first).to be_descending
|
|
expect(paginated_relation.order_values.first.expr.name).to eq :created_at
|
|
end
|
|
end
|
|
end
|
|
|
|
context 'when resource empty' do
|
|
describe 'first page' do
|
|
let(:query) { base_query.merge(page: 1, per_page: 2) }
|
|
|
|
it 'returns appropriate amount of resources' do
|
|
expect(subject.paginate(resource).count).to eq 0
|
|
end
|
|
|
|
it 'adds appropriate headers' do
|
|
expect_header('X-Total', '0')
|
|
expect_header('X-Total-Pages', '1')
|
|
expect_header('X-Per-Page', '2')
|
|
expect_header('X-Page', '1')
|
|
expect_header('X-Next-Page', '')
|
|
expect_header('X-Prev-Page', '')
|
|
|
|
expect_header('Link', anything) do |_key, val|
|
|
expect(val).to include(%Q(<#{incoming_api_projects_url}?#{query.merge(page: 1).to_query}>; rel="first"))
|
|
expect(val).to include(%Q(<#{incoming_api_projects_url}?#{query.merge(page: 1).to_query}>; rel="last"))
|
|
expect(val).not_to include('rel="prev"')
|
|
expect(val).not_to include('rel="next"')
|
|
expect(val).not_to include('page=0')
|
|
end
|
|
|
|
subject.paginate(resource)
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
def expect_header(*args, &block)
|
|
expect(subject).to receive(:header).with(*args, &block)
|
|
end
|
|
|
|
def expect_no_header(*args, &block)
|
|
expect(subject).not_to receive(:header).with(*args)
|
|
end
|
|
|
|
def expect_message(method)
|
|
expect(subject).to receive(method)
|
|
.at_least(:once).and_return(value)
|
|
end
|
|
end
|