Add AutoIndex

service/datastore/testable.go

Index: service/datastore/testable.go
diff --git a/service/datastore/testable.go b/service/datastore/testable.go
index 0ba6c4a2c0a0e73e1a1490b529ef8d068898fb64..4bff2400b7c0f4ccb8cab0671c33807e392486c7 100644
--- a/service/datastore/testable.go
+++ b/service/datastore/testable.go
@@ -48,4 +48,12 @@ type Testable interface {
 	//
 	// By default the datastore is eventually consistent.
 	Consistent(always bool)
+
+	// AutoIndex controls the index creation behavior. If it is set to true, then

[Vadim Sh., 2015/09/24 19:17:29]

It probably doesn't make sense without Consistent(true)? Or new index is
immediately usable without a call to CatchupIndexes?

+	// any time the datastore encounters a missing index, it will silently create
+	// one and allow the query to succeed. If it's false, then the query will
+	// return an error describing the index which could be added with AddIndexes.
+	//
+	// By default this is false.
+	AutoIndex(bool)
 }