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# Licensed to Elasticsearch B.V. under one or more contributor
# license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright
# ownership. Elasticsearch B.V. licenses this file to you under
# the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
require 'test_helper'
module Elasticsearch
module Test
class AggregationsIntegrationTest < ::Elasticsearch::Test::IntegrationTestCase
include Elasticsearch::DSL::Search
context "Aggregations integration" do
setup do
@client.indices.create index: 'test', body: {
mappings: {
properties: {
tags: {type: 'keyword'}
}
}
}
@client.index index: 'test', id: '1', body: { title: 'A', tags: %w[one], clicks: 5 }
@client.index index: 'test', id: '2', body: { title: 'B', tags: %w[one two], clicks: 15 }
@client.index index: 'test', id: '3', body: { title: 'C', tags: %w[one three], clicks: 20 }
@client.indices.refresh index: 'test'
end
context "with a terms aggregation" do
should "return tag counts" do
response = @client.search index: 'test', body: search {
aggregation :tags do
terms field: 'tags'
end
}.to_hash
assert_equal 3, response['aggregations']['tags']['buckets'].size
assert_equal 'one', response['aggregations']['tags']['buckets'][0]['key']
end
should "return approximate tag counts" do
response = @client.search index: 'test', body: search {
aggregation :tags do
cardinality field: 'tags'
end
}.to_hash
assert_equal 3, response['aggregations']['tags']['value']
end
should "return tag counts per clicks range as an inner (nested) aggregation" do
response = @client.search index: 'test', body: search {
aggregation :clicks do
range field: 'clicks' do
key :low, to: 10
key :mid, from: 10, to: 20
aggregation :tags do
terms field: 'tags'
end
end
end
}.to_hash
assert_equal 2, response['aggregations']['clicks']['buckets'].size
assert_equal 1, response['aggregations']['clicks']['buckets']['low']['doc_count']
assert_equal 'one', response['aggregations']['clicks']['buckets']['low']['tags']['buckets'][0]['key']
end
should "define multiple aggregations" do
response = @client.search index: 'test', body: search {
aggregation :clicks do
range field: 'clicks' do
key :low, to: 10
key :mid, from: 10, to: 20
aggregation :tags do
terms { field 'tags' }
end
end
end
aggregation :min_clicks do
min field: 'clicks'
end
aggregation :max_clicks do
max field: 'clicks'
end
aggregation :sum_clicks do
sum field: 'clicks'
end
aggregation :avg_clicks do
avg field: 'clicks'
end
}.to_hash
assert_equal 2, response['aggregations']['clicks']['buckets'].size
assert_equal 1, response['aggregations']['clicks']['buckets']['low']['doc_count']
assert_equal 'one', response['aggregations']['clicks']['buckets']['low']['tags']['buckets'][0]['key']
assert_equal 5, response['aggregations']['min_clicks']['value']
assert_equal 20, response['aggregations']['max_clicks']['value']
assert_equal 40, response['aggregations']['sum_clicks']['value']
assert_equal 13, response['aggregations']['avg_clicks']['value'].to_i
end
should "define a global aggregation" do
response = @client.search index: 'test', body: search {
query do
bool filter: { terms: { tags: ['two'] } }
end
aggregation :avg_clicks do
avg field: 'clicks'
end
aggregation :all_documents do
global do
aggregation :avg_clicks do
avg field: 'clicks'
end
end
end
}.to_hash
assert_equal 15, response['aggregations']['avg_clicks']['value'].to_i
assert_equal 13, response['aggregations']['all_documents']['avg_clicks']['value'].to_i
end
should "return statistics on clicks" do
response = @client.search index: 'test', body: search {
aggregation :stats_clicks do
stats field: 'clicks'
end
aggregation :value_count do
value_count field: 'clicks'
end
}.to_hash
assert_equal 3, response['aggregations']['stats_clicks']['count']
assert_equal 5, response['aggregations']['stats_clicks']['min']
assert_equal 20, response['aggregations']['stats_clicks']['max']
assert_equal 40, response['aggregations']['stats_clicks']['sum']
assert_equal 13, response['aggregations']['stats_clicks']['avg'].to_i
assert_equal 3, response['aggregations']['value_count']['value']
end
should "return percentiles on clicks" do
response = @client.search index: 'test', body: search {
aggregation :percentiles do
percentiles field: 'clicks'
end
}.to_hash
assert_equal 20, response['aggregations']['percentiles']['values']['99.0'].round
end
should "return percentile ranks on clicks" do
response = @client.search index: 'test', body: search {
aggregation :percentiles do
percentile_ranks field: 'clicks', values: [5]
end
}.to_hash
assert_equal 17, response['aggregations']['percentiles']['values']['5.0'].round
end
should "return top hits per tag" do
response = @client.search index: 'test', body: search {
aggregation :tags do
terms do
field 'tags'
size 5
aggregation :top_hits do
top_hits sort: [ clicks: { order: 'desc' } ], _source: { include: 'title' }
end
end
end
}.to_hash
assert_equal 3, response['aggregations']['tags']['buckets'][0]['top_hits']['hits']['hits'].size
assert_equal 'C', response['aggregations']['tags']['buckets'][0]['top_hits']['hits']['hits'][0]['_source']['title']
end
should "calculate clicks for a tag" do
response = @client.search index: 'test', body: search {
aggregation :clicks_for_one do
scripted_metric do
init_script "state.transactions = []"
map_script "if (doc['tags'].value.contains('one')) { state.transactions.add(doc['clicks'].value) }"
combine_script "double sum = 0; for (t in state.transactions) { sum += t } return sum"
reduce_script "double sum = 0; for (a in states) { sum += a } return sum"
end
end
}.to_hash
assert_equal 40, response['aggregations']['clicks_for_one']['value']
end
should "limit the scope with a filter" do
response = @client.search index: 'test', body: search {
aggregation :clicks_for_one do
filter terms: { tags: ['one'] } do
aggregation :sum_clicks do
sum field: 'clicks'
end
end
end
}.to_hash
assert_equal 40, response['aggregations']['clicks_for_one']['sum_clicks']['value']
end
end
should "return aggregations for multiple filters" do
response = @client.search index: 'test', body: search {
aggregation :avg_clicks_per_tag do
filters do
filters one: { terms: { tags: ['one'] } },
two: { terms: { tags: ['two'] } }
aggregation :avg do
avg field: 'clicks'
end
end
end
}.to_hash
assert_equal 13, response['aggregations']['avg_clicks_per_tag']['buckets']['one']['avg']['value'].to_i
assert_equal 15, response['aggregations']['avg_clicks_per_tag']['buckets']['two']['avg']['value'].to_i
end
should "return a histogram on clicks" do
response = @client.search index: 'test', body: search {
aggregation :clicks_histogram do
histogram do
field 'clicks'
interval 10
end
end
}.to_hash
assert_equal 3, response['aggregations']['clicks_histogram']['buckets'].size
assert_equal 10, response['aggregations']['clicks_histogram']['buckets'][1]['key']
assert_equal 1, response['aggregations']['clicks_histogram']['buckets'][1]['doc_count']
end
should "return a histogram with empty buckets on clicks" do
response = @client.search index: 'test', body: search {
aggregation :clicks_histogram do
histogram do
field 'clicks'
interval 2
min_doc_count 0
end
end
}.to_hash
assert_equal 9, response['aggregations']['clicks_histogram']['buckets'].size
end
end
end
end
end
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