Add tests for pagination module extracted from API
This commit is contained in:
parent
d57faaa040
commit
f9331db136
|
@ -0,0 +1,94 @@
|
|||
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
|
Loading…
Reference in New Issue