CastFieldIfToString with time.Duration support for acd/tcd

utils/reflect.go

@@ -50,6 +50,9 @@ func CastFieldIfToString(fld interface{}) (string, bool) {
 		if byteVal, converted = fld.([]byte); converted {
 			strVal = string(byteVal)
 		}
+	case time.Duration:
+		strVal = fld.(time.Duration).String()
+		converted = true
 	default: // Maybe we are lucky and the value converts to string
 		strVal, converted = fld.(string)
 	}

utils/reflect_test.go

@@ -216,3 +216,11 @@ func TestStringToInterface(t *testing.T) {
 		t.Error("not parsing time.Duration")
 	}
 }
+
+func TestCastFieldIfToString(t *testing.T) {
+	if strVal, cast := CastFieldIfToString(time.Duration(1 * time.Second)); !cast {
+		t.Error("cannot cast time.Duration")
+	} else if strVal != "1s" {
+		t.Errorf("received: %s", strVal)
+	}
+}