94 lines
2.4 KiB
Ruby
94 lines
2.4 KiB
Ruby
require 'spec_helper'
|
|
|
|
describe API::Helpers::Pagination do
|
|
let(:resource) { Project.all }
|
|
|
|
subject do
|
|
Class.new.include(described_class).new
|
|
end
|
|
|
|
describe '#paginate' do
|
|
let(:value) { spy('return value') }
|
|
|
|
before do
|
|
allow(value).to receive(:to_query).and_return(value)
|
|
|
|
allow(subject).to receive(:header).and_return(value)
|
|
allow(subject).to receive(:params).and_return(value)
|
|
allow(subject).to receive(:request).and_return(value)
|
|
end
|
|
|
|
describe 'required instance methods' do
|
|
let(:return_spy) { spy }
|
|
|
|
it 'requires some instance methods' do
|
|
expect_message(:header)
|
|
expect_message(:params)
|
|
expect_message(:request)
|
|
|
|
subject.paginate(resource)
|
|
end
|
|
end
|
|
|
|
context 'when resource can be paginated' do
|
|
before do
|
|
create_list(:empty_project, 3)
|
|
end
|
|
|
|
describe 'first page' do
|
|
before do
|
|
allow(subject).to receive(:params)
|
|
.and_return({ page: 1, per_page: 2 })
|
|
end
|
|
|
|
it 'returns appropriate amount of resources' do
|
|
expect(subject.paginate(resource).count).to eq 2
|
|
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', '1')
|
|
expect_header('X-Next-Page', '2')
|
|
expect_header('X-Prev-Page', '')
|
|
expect_header('Link', any_args)
|
|
|
|
subject.paginate(resource)
|
|
end
|
|
end
|
|
|
|
describe 'second page' do
|
|
before do
|
|
allow(subject).to receive(:params)
|
|
.and_return({ page: 2, per_page: 2 })
|
|
end
|
|
|
|
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', any_args)
|
|
|
|
subject.paginate(resource)
|
|
end
|
|
end
|
|
end
|
|
|
|
def expect_header(name, value)
|
|
expect(subject).to receive(:header).with(name, value)
|
|
end
|
|
|
|
def expect_message(method)
|
|
expect(subject).to receive(method)
|
|
.at_least(:once).and_return(value)
|
|
end
|
|
end
|
|
end
|