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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Gitlab::Pagination::Keyset::RequestContext do
let(:request) { double('request', params: params) }
describe '#page' do
subject { described_class.new(request).page }
context 'with only order_by given' do
let(:params) { { order_by: :id } }
it 'extracts order_by/sorting information' do
page = subject
expect(page.order_by).to eq(id: :desc)
end
end
context 'with order_by and sort given' do
let(:params) { { order_by: :created_at, sort: :desc } }
it 'extracts order_by/sorting information and adds tie breaker' do
page = subject
expect(page.order_by).to eq(created_at: :desc, id: :desc)
end
end
context 'with no order_by information given' do
let(:params) { {} }
it 'defaults to tie breaker' do
page = subject
expect(page.order_by).to eq({ id: :desc })
end
end
context 'with per_page params given' do
let(:params) { { per_page: 10 } }
it 'extracts per_page information' do
page = subject
expect(page.per_page).to eq(params[:per_page])
end
end
end
describe '#apply_headers' do
let(:request) { double('request', url: "http://#{Gitlab.config.gitlab.host}/api/v4/projects?foo=bar") }
let(:params) { { foo: 'bar' } }
let(:request_context) { double('request context', params: params, request: request) }
let(:next_page) { double('next page', order_by: { id: :asc }, lower_bounds: { id: 42 }) }
subject { described_class.new(request_context).apply_headers(next_page) }
it 'sets Links header with same host/path as the original request' do
orig_uri = URI.parse(request_context.request.url)
expect(request_context).to receive(:header).twice do |name, header|
first_link, _ = /<([^>]+)>; rel="next"/.match(header).captures
uri = URI.parse(first_link)
expect(uri.host).to eq(orig_uri.host)
expect(uri.path).to eq(orig_uri.path)
end
subject
end
it 'sets Links header with a link to the next page' do
orig_uri = URI.parse(request_context.request.url)
expect(request_context).to receive(:header).twice do |name, header|
first_link, _ = /<([^>]+)>; rel="next"/.match(header).captures
query = CGI.parse(URI.parse(first_link).query)
expect(query.except('id_after')).to eq(CGI.parse(orig_uri.query).except('id_after'))
expect(query['id_after']).to eq(['42'])
end
subject
end
context 'with descending order' do
let(:next_page) { double('next page', order_by: { id: :desc }, lower_bounds: { id: 42 }) }
it 'sets Links header with a link to the next page' do
orig_uri = URI.parse(request_context.request.url)
expect(request_context).to receive(:header).twice do |name, header|
first_link, _ = /<([^>]+)>; rel="next"/.match(header).captures
query = CGI.parse(URI.parse(first_link).query)
expect(query.except('id_before')).to eq(CGI.parse(orig_uri.query).except('id_before'))
expect(query['id_before']).to eq(['42'])
end
subject
end
end
end
end
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