working on List

db_test.go

@@ -15,6 +15,14 @@ type mock struct {
 	m map[string][]byte
 }
 
+func (mock *mock) List(ns []string, limits ...string) ([]string, error) {
+	keys := []string{}
+	for k := range mock.m {
+		keys = append(keys, k)
+	}
+	return keys, nil
+}
+
 func (mock *mock) Get(key string, ns ...string) ([]byte, error) {
 	namespace := resolveNamespace(ns)
 	v, ok := mock.m[path.Join(namespace, key)]
@@ -143,6 +151,14 @@ func TestImplementations(t *testing.T) {
 			t.Errorf("cannot get %T: %v", db, err)
 		} else if !bytes.Equal(v, validValue) {
 			t.Errorf("wrong get %T: %q vs %q", db, v, validValue)
+		} else if keys, err := db.List(nil); err != nil || len(keys) < 1 {
+			t.Errorf("cannot List(): %v", err)
+		} else if keys[0] != validKey {
+			t.Errorf("List()[0] != %s: %s", validKey, keys[0])
+		} else if keys, err := db.List(nil, validKey[:1]); err != nil || len(keys) < 1 {
+			t.Errorf("cannot List(prefix): %v", err)
+		} else if keys[0] != validKey {
+			t.Errorf("List(prefix)[0] != %s: %s", validKey, keys[0])
 		} else {
 			t.Logf("%25T GET: %s", db, v)
 		}