From 6324c9b944baf5d7d77c414e7eefdd6e2e688b54 Mon Sep 17 00:00:00 2001
From: Nikitin Aleksandr <nikitinav@atomsbt.ru>
Date: Fri, 12 Apr 2024 15:34:20 +0300
Subject: [PATCH] =?UTF-8?q?=D1=81=D0=B4=D0=B5=D0=BB=D0=B0=D0=BB=20IsEmptyV?=
 =?UTF-8?q?alue()?=
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---
 micro/microfunctions.go      |  7 +++++++
 micro/microfunctions_test.go | 19 +++++++++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/micro/microfunctions.go b/micro/microfunctions.go
index 22e5c1f5..0860cb91 100644
--- a/micro/microfunctions.go
+++ b/micro/microfunctions.go
@@ -841,3 +841,10 @@ func StructDeepCopy(src, dist interface{}) (err error) {
 	}
 	return gob.NewDecoder(&buf).Decode(dist)
 }
+
+// IsEmptyValue - возвращает true если значение по умолчанию (0, пустая строка, пустой слайс)
+func IsEmptyValue(v any) bool {
+	rv := reflect.ValueOf(v)
+	Otvet := !rv.IsValid() || reflect.DeepEqual(rv.Interface(), reflect.Zero(rv.Type()).Interface())
+	return Otvet
+}
diff --git a/micro/microfunctions_test.go b/micro/microfunctions_test.go
index 1bff12ab..3d62269e 100644
--- a/micro/microfunctions_test.go
+++ b/micro/microfunctions_test.go
@@ -5,6 +5,7 @@ import (
 	"errors"
 	"fmt"
 	"github.com/ManyakRus/starter/contextmain"
+	"github.com/google/uuid"
 	"os"
 	"reflect"
 	"testing"
@@ -634,3 +635,21 @@ func TestStructDeepCopy(t *testing.T) {
 		t.Errorf("copied struct does not match original struct")
 	}
 }
+
+func TestIsEmptyValue(t *testing.T) {
+	// Testing for integer zero value
+	if !IsEmptyValue(0) {
+		t.Error("Expected true for integer zero value")
+	}
+
+	// Testing for empty string value
+	if !IsEmptyValue("") {
+		t.Error("Expected true for empty string value")
+	}
+
+	// Testing for empty uuid value
+	uuid1 := uuid.Nil
+	if !IsEmptyValue(uuid1) {
+		t.Error("Expected true for empty uuid value")
+	}
+}