test: add plugin test code

api/go/utils/common.go

@@ -87,3 +87,25 @@ func Ip2Region(searcher *xdb.Searcher, ip string) string {
 	}
 	return fmt.Sprintf("%s-%s-%s", arr[0], arr[2], arr[3])
 }
+
+func IsEmptyValue(obj interface{}) bool {
+	v := reflect.ValueOf(obj)
+	switch v.Kind() {
+	case reflect.Ptr, reflect.Interface:
+		return v.IsNil()
+	case reflect.Array, reflect.Slice, reflect.Map, reflect.String:
+		return v.Len() == 0
+	case reflect.Bool:
+		return !v.Bool()
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return v.Int() == 0
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		return v.Uint() == 0
+	case reflect.Float32, reflect.Float64:
+		return v.Float() == 0
+	case reflect.Complex64, reflect.Complex128:
+		return v.Complex() == 0
+	default:
+		return reflect.DeepEqual(obj, reflect.Zero(reflect.TypeOf(obj)).Interface())
+	}
+}