diff --git a/delayed/delayed_test.go b/delayed/delayed_test.go
index 2480047..35bf396 100644
--- a/delayed/delayed_test.go
+++ b/delayed/delayed_test.go
@@ -6,6 +6,7 @@ import (
 
 	datastore "github.com/ipfs/go-datastore"
 	delay "github.com/ipfs/go-ipfs-delay"
+	dstest "github.com/ipfs/go-datastore/test"
 )
 
 func TestDelayed(t *testing.T) {
@@ -24,3 +25,8 @@ func TestDelayed(t *testing.T) {
 		t.Fatal("There should have been a delay of 1 second in put and in get")
 	}
 }
+
+
+func TestDelayedAll(t *testing.T) {
+	dstest.SubtestAll(t, New(datastore.NewMapDatastore(), delay.Fixed(time.Millisecond)))
+}