test: test surrogate pair filenames on windows

test/common/file-ops-with-surrogate-pairs-on-windows.js

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+'use strict';
+
+const fs = require('fs');
+const { describe, it } = require('node:test');
+const assert = require('assert').strict;
+const os = require('os');
+const path = require('path');
+
+describe('File operations with filenames containing surrogate pairs on Windows', () => {
+  it('should write, read, and delete a file with surrogate pairs in the filename', () => {
+    // Create a temporary directory
+    const tempdir = fs.mkdtempSync(path.join(os.tmpdir(), 'emoji-fruit-🍇 🍈 🍉 🍊 🍋'));
+    assert.strictEqual(fs.existsSync(tempdir), true);
+
+    const filename = '🚀🔥🛸.txt';
+    const content = 'Test content';
+
+    // Write content to a file
+    fs.writeFileSync(path.join(tempdir, filename), content);
+
+    // Read content from the file
+    const readContent = fs.readFileSync(path.join(tempdir, filename), 'utf8');
+
+    // Check if the content matches
+    assert.strictEqual(readContent, content);
+
+    // Get directory contents
+    const dirs = fs.readdirSync(tempdir);
+    assert.strictEqual(dirs.length > 0, true);
+
+    // Check if the file is in the directory contents
+    let match = false;
+    for (let i = 0; i < dirs.length; i++) {
+      if (dirs[i].endsWith(filename)) {
+        match = true;
+        break;
+      }
+    }
+    assert.strictEqual(match, true);
+
+    // Delete the file
+    fs.unlinkSync(path.join(tempdir, filename));
+    assert.strictEqual(fs.existsSync(path.join(tempdir, filename)), false);
+
+    // Remove the temporary directory
+    fs.rmdirSync(tempdir);
+    assert.strictEqual(fs.existsSync(tempdir), false);
+  });
+});