index: export NewMemoryIndex

Change-Id: Iaa6d3268ce0f6c531e37c97799deeb31c11eabdb

pkg/index/export_test.go

@@ -23,7 +23,3 @@ func ExpReverseTimeString(s string) string {
 func ExpUnreverseTimeString(s string) string {
 	return unreverseTimeString(s)
 }
-
-func ExpNewMemoryIndex() *Index {
-	return newMemoryIndex()
-}

pkg/index/index_test.go

@@ -44,15 +44,15 @@ func TestReverseTimeString(t *testing.T) {
 }
 
 func TestIndex_Memory(t *testing.T) {
-	indextest.Index(t, index.ExpNewMemoryIndex)
+	indextest.Index(t, index.NewMemoryIndex)
 }
 
 func TestPathsOfSignerTarget_Memory(t *testing.T) {
-	indextest.PathsOfSignerTarget(t, index.ExpNewMemoryIndex)
+	indextest.PathsOfSignerTarget(t, index.NewMemoryIndex)
 }
 
 func TestFiles_Memory(t *testing.T) {
-	indextest.Files(t, index.ExpNewMemoryIndex)
+	indextest.Files(t, index.NewMemoryIndex)
 }
 
 var (

pkg/index/memindex.go

@@ -32,7 +32,8 @@ func init() {
 		blobserver.StorageConstructor(newMemoryIndexFromConfig))
 }
 
-func newMemoryIndex() *Index {
+// NewMemoryIndex returns an Index backed only by memory, for use in tests.
+func NewMemoryIndex() *Index {
 	db := memdb.New(nil)
 	memStorage := &memKeys{db: db}
 	return New(memStorage)
@@ -48,7 +49,7 @@ func newMemoryIndexFromConfig(ld blobserver.Loader, config jsonconfig.Obj) (blob
 		return nil, err
 	}
 
-	ix := newMemoryIndex()
+	ix := NewMemoryIndex()
 	ix.BlobSource = sto
 
 	// Good enough, for now: