From 0f183acb0bdddb5188e66c305eef736368ff647d Mon Sep 17 00:00:00 2001
From: Javad <ja7ad@live.com>
Date: Wed, 18 Jan 2023 10:06:13 +0330
Subject: [PATCH] os: update test use cache dir

error UserCacheDir skipped and empty string cache dir got fatal.

for test write permission in cache dir add mkdir temp.

Fixes #57638 #57630
---
 src/os/os_test.go | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/src/os/os_test.go b/src/os/os_test.go
index a7b0a8792ea..f8c4af066e7 100644
--- a/src/os/os_test.go
+++ b/src/os/os_test.go
@@ -2550,12 +2550,19 @@ func TestDoubleCloseError(t *testing.T) {
 
 func TestUserCacheDir(t *testing.T) {
 	cacheDir, err := UserCacheDir()
-	if len(cacheDir) == 0 && err == nil {
-		t.Fatal("UserCacheDir return empty string without error")
+	if err != nil {
+		t.Skipf("skipping: %v", err)
+	}
+	if cacheDir == "" {
+		t.Fatalf("UserCacheDir returned %q; want non-empty path or error", cacheDir)
 	}
 
-	if err != nil && IsNotExist(err) {
-		t.Skipf("UserCacheDir failed: %v", err)
+	d, err := os.MkdirTemp(cacheDir, "TestUserCacheDir")
+	if err != nil {
+		t.Fatalf("could not write to UserCacheDir %q: %v", cacheDir, err)
+	}
+	if err := os.Remove(d); err != nil {
+		t.Error(err)
 	}
 }