1// Copyright 2012-present Oliver Eilhard. All rights reserved.
2// Use of this source code is governed by a MIT-license.
3// See http://olivere.mit-license.org/license.txt for details.
4
5package elastic
6
7import (
8	"encoding/json"
9	"testing"
10)
11
12func TestTopHitsAggregation(t *testing.T) {
13	fsc := NewFetchSourceContext(true).Include("title")
14	agg := NewTopHitsAggregation().
15		Sort("last_activity_date", false).
16		FetchSourceContext(fsc).
17		Size(1)
18	src, err := agg.Source()
19	if err != nil {
20		t.Fatal(err)
21	}
22	data, err := json.Marshal(src)
23	if err != nil {
24		t.Fatalf("marshaling to JSON failed: %v", err)
25	}
26	got := string(data)
27	expected := `{"top_hits":{"_source":{"includes":["title"]},"size":1,"sort":[{"last_activity_date":{"order":"desc"}}]}}`
28	if got != expected {
29		t.Errorf("expected\n%s\n,got:\n%s", expected, got)
30	}
31}
32