test: add test case for device paths missing colon

Author: HassanFleyah

test/parallel/test-path-win32-normalize-device-missing-colon.js

@@ -0,0 +1,27 @@
+'use strict';
+const common = require('../common');
+const assert = require('assert');
+const path = require('path');
+
+// هذا السطر يمنع تشغيل الاختبار على غير ويندوز لأنه خاص بويندوز فقط
+if (!common.isWindows)
+  common.skip('this test is for win32 only');
+
+// Test cases for reserved device names missing the trailing colon
+// See: https://github.com/nodejs/node/pull/[YOUR_PR_NUMBER] (optional)
+
+// 1. Check \\.\CON (Missing colon)
+assert.strictEqual(path.win32.normalize('\\\\.\\CON'), '\\\\.\\CON');
+assert.strictEqual(path.win32.normalize('\\\\.\\con'), '\\\\.\\con'); // Case insensitive
+
+// 2. Check \\?\CON (Missing colon)
+assert.strictEqual(path.win32.normalize('\\\\?\\CON'), '\\\\?\\CON');
+assert.strictEqual(path.win32.normalize('\\\\?\\con'), '\\\\?\\con');
+
+// 3. Check that regular files are NOT affected (Sanity check)
+assert.strictEqual(path.win32.normalize('\\\\.\\PhysicalDrive0'), '\\\\.\\PhysicalDrive0');
+
+// 4. Check join behavior (to ensure it acts as a root)
+// If it's a root, joining '..' should not strip the device.
+const joined = path.win32.join('\\\\.\\CON', '..');
+assert.strictEqual(joined, '\\\\.\\CON');