gitlab-org--gitlab-foss/spec/lib/bitbucket_server/paginator_spec.rb
Stan Hu 5b6d5301d9 Paginate Bitbucket Server importer projects
To prevent delays in loading the page and reduce memory usage, limit the
number of projects shown at 25 per page.

Part of https://gitlab.com/gitlab-org/gitlab-ce/issues/50021
2018-11-07 11:37:46 -08:00

45 lines
1.8 KiB
Ruby

require 'spec_helper'
describe BitbucketServer::Paginator do
let(:last_page) { double(:page, next?: false, items: ['item_2']) }
let(:first_page) { double(:page, next?: true, next: last_page, items: ['item_1']) }
let(:connection) { instance_double(BitbucketServer::Connection) }
describe '#items' do
let(:paginator) { described_class.new(connection, 'http://more-data', :pull_request) }
let(:page_attrs) { { 'isLastPage' => false, 'nextPageStart' => 1 } }
it 'returns items and raises StopIteration in the end' do
allow(paginator).to receive(:fetch_next_page).and_return(first_page)
expect(paginator.items).to match(['item_1'])
allow(paginator).to receive(:fetch_next_page).and_return(last_page)
expect(paginator.items).to match(['item_2'])
allow(paginator).to receive(:fetch_next_page).and_return(nil)
expect { paginator.items }.to raise_error(StopIteration)
end
it 'obeys limits' do
limited = described_class.new(connection, 'http://more-data', :pull_request, page_offset: 0, limit: 1)
allow(limited).to receive(:fetch_next_page).and_return(first_page)
expect(limited.has_next_page?).to be_truthy
expect(limited.items).to match(['item_1'])
expect(limited.has_next_page?).to be_truthy
expect { limited.items }.to raise_error(StopIteration)
end
it 'calls the connection with different offsets' do
expect(connection).to receive(:get).with('http://more-data', start: 0, limit: BitbucketServer::Paginator::PAGE_LENGTH).and_return(page_attrs)
expect(paginator.items).to eq([])
expect(connection).to receive(:get).with('http://more-data', start: 1, limit: BitbucketServer::Paginator::PAGE_LENGTH).and_return({})
expect(paginator.items).to eq([])
expect { paginator.items }.to raise_error(StopIteration)
end
end
end