Add test for date math in index names

This should guard against #1009.

Author: olivere

search_test.go

@@ -7,6 +7,7 @@ package elastic
 import (
 	"context"
 	"encoding/json"
+	"fmt"
 	"reflect"
 	"testing"
 	"time"
@@ -1392,3 +1393,68 @@ func TestSearchWithDocvalueFields(t *testing.T) {
 		}
 	}
 }
+
+func TestSearchWithDateMathIndices(t *testing.T) {
+	client := setupTestClient(t) //, SetTraceLog(log.New(os.Stdout, "", log.LstdFlags)))
+
+	ctx := context.Background()
+	now := time.Now().UTC()
+	indexNameToday := fmt.Sprintf("elastic-trail-%s", now.Format("2006.01.02"))
+	indexNameYesterday := fmt.Sprintf("elastic-trail-%s", now.AddDate(0, 0, -1).Format("2006.01.02"))
+	indexNameTomorrow := fmt.Sprintf("elastic-trail-%s", now.AddDate(0, 0, +1).Format("2006.01.02"))
+
+	const mapping = `{
+	"settings":{
+		"number_of_shards":1,
+		"number_of_replicas":0
+	}
+}`
+
+	// Create indices
+	for i, indexName := range []string{indexNameToday, indexNameTomorrow, indexNameYesterday} {
+		_, err := client.CreateIndex(indexName).Body(mapping).Do(ctx)
+		if err != nil {
+			t.Fatal(err)
+		}
+		defer client.DeleteIndex(indexName).Do(ctx)
+
+		// Add a document
+		id := fmt.Sprintf("%d", i+1)
+		_, err = client.Index().Index(indexName).Type("doc").Id(id).BodyJson(map[string]interface{}{
+			"index": indexName,
+		}).Refresh("wait_for").Do(ctx)
+		if err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	// Count total
+	cnt, err := client.
+		Count(indexNameYesterday, indexNameToday, indexNameTomorrow).
+		Do(ctx)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if cnt != 3 {
+		t.Fatalf("expected Count=%d; got %d", 3, cnt)
+	}
+
+	// Match all should return all documents
+	res, err := client.Search().
+		Index("<elastic-trail-{now/d}>", "<elastic-trail-{now-1d/d}>").
+		Query(NewMatchAllQuery()).
+		Pretty(true).
+		Do(ctx)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if res.Hits == nil {
+		t.Errorf("expected SearchResult.Hits != nil; got nil")
+	}
+	if got, want := res.Hits.TotalHits, int64(2); got != want {
+		t.Errorf("expected SearchResult.Hits.TotalHits = %d; got %d", want, got)
+	}
+	if got, want := len(res.Hits.Hits), 2; got != want {
+		t.Errorf("expected len(SearchResult.Hits.Hits) = %d; got %d", want, got)
+	}
+}

setup_test.go

@@ -126,30 +126,30 @@ const (
 	testOrderIndex   = "elastic-orders"
 	testOrderMapping = `
 {
-	"settings":{
-		"number_of_shards":1,
-		"number_of_replicas":0
-	},
-	"mappings":{
-		"doc":{
-			"properties":{
-				"article":{
-					"type":"text"
-				},
-				"manufacturer":{
-					"type":"keyword"
-				},
-				"price":{
-					"type":"float"
-				},
-				"time":{
-					"type":"date",
-					"format": "YYYY-MM-dd"
-				}
+"settings":{
+	"number_of_shards":1,
+	"number_of_replicas":0
+},
+"mappings":{
+	"doc":{
+		"properties":{
+			"article":{
+				"type":"text"
+			},
+			"manufacturer":{
+				"type":"keyword"
+			},
+			"price":{
+				"type":"float"
+			},
+			"time":{
+				"type":"date",
+				"format": "YYYY-MM-dd"
 			}
 		}
 	}
 }
+}
 `
 
 	/*