debian-mirror-gitlab/spec/lib/gitlab/serializer/pagination_spec.rb

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# frozen_string_literal: true
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require 'spec_helper'
describe Gitlab::Serializer::Pagination do
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let(:request) { double(url: "#{Gitlab.config.gitlab.url}:8080/api/v4/projects?#{query.to_query}", query_parameters: query) }
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let(:response) { spy('response') }
let(:headers) { spy('headers') }
before do
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allow(response).to receive(:headers).and_return(headers)
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end
let(:pagination) { described_class.new(request, response) }
describe '#paginate' do
subject { pagination.paginate(resource) }
let(:resource) { User.all }
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let(:query) { { page: 1, per_page: 2 } }
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context 'when a multiple resources are present in relation' do
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before do
create_list(:user, 3)
end
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it 'correctly paginates the resource' do
expect(subject.count).to be 2
end
it 'appends relevant headers' do
expect(headers).to receive(:[]=).with('X-Total', '3')
expect(headers).to receive(:[]=).with('X-Total-Pages', '2')
expect(headers).to receive(:[]=).with('X-Per-Page', '2')
subject
end
end
context 'when an invalid resource is about to be paginated' do
let(:resource) { create(:user) }
it 'raises error' do
expect { subject }.to raise_error(
described_class::InvalidResourceError)
end
end
end
end