# frozen_string_literal: true

require 'spec_helper'

RSpec.describe Gitlab::Pagination::CursorBasedKeyset do
  subject { described_class }

  describe '.available_for_type?' do
    it 'returns true for Group' do
      expect(subject.available_for_type?(Group.all)).to be_truthy
    end

    it 'return false for other types of relations' do
      expect(subject.available_for_type?(User.all)).to be_falsey
    end
  end

  describe '.available?' do
    let(:request_context) { double('request_context', params: { order_by: order_by, sort: sort }) }
    let(:cursor_based_request_context) { Gitlab::Pagination::Keyset::CursorBasedRequestContext.new(request_context) }

    context 'with order-by name asc' do
      let(:order_by) { :name }
      let(:sort) { :asc }

      it 'returns true for Group' do
        expect(subject.available?(cursor_based_request_context, Group.all)).to be_truthy
      end

      it 'return false for other types of relations' do
        expect(subject.available?(cursor_based_request_context, User.all)).to be_falsey
      end
    end

    context 'with other order-by columns' do
      let(:order_by) { :path }
      let(:sort) { :asc }

      it 'returns false for Group' do
        expect(subject.available?(cursor_based_request_context, Group.all)).to be_falsey
      end

      it 'return false for other types of relations' do
        expect(subject.available?(cursor_based_request_context, User.all)).to be_falsey
      end
    end
  end
end