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require_relative '../test_helper'

module OpenSearch
  module Test
    class SizeIntegrationTest < ::OpenSearch::Test::IntegrationTestCase
      include OpenSearch::DSL::Search

      context 'Search results pagination' do
        setup do
          @client.indices.create index: 'test', body: {
            mappings: { properties: { title: { type: 'text', fields: { keyword: { type: 'keyword' } } } } }
          }

          25.times { |i| @client.index index: 'test', id: i, body: { title: "Test #{format('%03d', i)}" } }

          @client.indices.refresh index: 'test'
        end

        should 'find the correct number of documents' do
          response = @client.search index: 'test', body: search {
            query { match title: 'test' }
            size 15
          }.to_hash

          assert_equal 25, response['hits']['total']['value']
          assert_equal 15, response['hits']['hits'].size
        end

        should 'move the offset' do
          response = @client.search index: 'test', body: search {
            query { match(:title) { query 'test' } }
            size 5
            from 5
            sort { by 'title.keyword' }
          }.to_hash

          assert_equal 25, response['hits']['total']['value']
          assert_equal 5,  response['hits']['hits'].size
          assert_equal 'Test 005', response['hits']['hits'][0]['_source']['title']
          assert_equal 'Test 009', response['hits']['hits'][4]['_source']['title']
        end
      end
    end
  end
end