From c30c6e7a043b36bac3484394ad47697ab2aecec1 Mon Sep 17 00:00:00 2001
From: Valeriy Selitskiy <239034+iamwavecut@users.noreply.github.com>
Date: Mon, 18 Nov 2024 00:31:07 +0100
Subject: [PATCH] feat: add IsZero convenience checker

---
 .vscode/launch.json | 16 ++++++++++++++++
 tool.go             |  6 ++++++
 tool_test.go        | 17 +++++++++++++----
 3 files changed, 35 insertions(+), 4 deletions(-)
 create mode 100644 .vscode/launch.json

diff --git a/.vscode/launch.json b/.vscode/launch.json
new file mode 100644
index 0000000..2505e36
--- /dev/null
+++ b/.vscode/launch.json
@@ -0,0 +1,16 @@
+{
+    // Используйте IntelliSense, чтобы узнать о возможных атрибутах.
+    // Наведите указатель мыши, чтобы просмотреть описания существующих атрибутов.
+    // Для получения дополнительной информации посетите: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Launch Test",
+            "type": "go",
+            "request": "launch",
+            "mode": "auto",
+            "program": "${workspaceFolder}/tool_test.go"
+        }
+
+    ]
+}
diff --git a/tool.go b/tool.go
index 9b8f505..67d30fa 100644
--- a/tool.go
+++ b/tool.go
@@ -269,6 +269,12 @@ func NonZero[T comparable](ts ...T) T {
 	return zeroValue
 }
 
+// IsZero Checks if value is zero
+func IsZero[T comparable](v T) bool {
+	var zero T
+	return v == zero
+}
+
 // identifyPanic Helper function to get user-friendly call stack message.
 func identifyPanic() string {
 	var name, file string
diff --git a/tool_test.go b/tool_test.go
index 34a4894..20c11eb 100644
--- a/tool_test.go
+++ b/tool_test.go
@@ -3,10 +3,11 @@ package tool
 import (
 	"errors"
 	"fmt"
-	"github.com/stretchr/testify/suite"
 	"reflect"
 	"strconv"
 	"testing"
+
+	"github.com/stretchr/testify/suite"
 )
 
 type (
@@ -63,17 +64,17 @@ func (s *ToolTestSuite) TestIn() {
 func (s *ToolTestSuite) TestConsole() {
 	s.Run("1", func() {
 		Console("123", "456", "789")
-		s.Equal("[github.com/iamwavecut/tool:65]> 123 456 789\n", testLog.buf)
+		s.Equal("[github.com/iamwavecut/tool:66]> 123 456 789\n", testLog.buf)
 	})
 	s.Run("2", func() {
 		testLog.buf = ""
 		Console(struct{ int }{123})
-		s.Equal("[github.com/iamwavecut/tool:70]> {int:123}\n", testLog.buf)
+		s.Equal("[github.com/iamwavecut/tool:71]> {int:123}\n", testLog.buf)
 	})
 	s.Run("3", func() {
 		testLog.buf = ""
 		Console(nil)
-		s.Equal("[github.com/iamwavecut/tool:75]> <nil>\n", testLog.buf)
+		s.Equal("[github.com/iamwavecut/tool:76]> <nil>\n", testLog.buf)
 	})
 }
 
@@ -506,3 +507,11 @@ func (s *ToolTestSuite) TestConvertSlice() {
 		s.Equal(result, expectedOutput, "slice conversion not as expected")
 	})
 }
+
+func (s *ToolTestSuite) TestIsZero() {
+	s.True(IsZero(0))
+	s.True(IsZero(""))
+	s.True(IsZero(false))
+	var v *int
+	s.True(IsZero(v))
+}