--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/third_party/libuv/test/test-cwd-and-chdir.c	Wed Jan 14 19:39:52 2026 -0800
@@ -0,0 +1,57 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "task.h"
+#include <string.h>
+
+#define PATHMAX 4096
+
+TEST_IMPL(cwd_and_chdir) {
+  char buffer_orig[PATHMAX];
+  char buffer_new[PATHMAX];
+  size_t size1;
+  size_t size2;
+  int err;
+
+  size1 = 1;
+  err = uv_cwd(buffer_orig, &size1);
+  ASSERT_EQ(err, UV_ENOBUFS);
+  ASSERT_GT(size1, 1);
+
+  size1 = sizeof buffer_orig;
+  err = uv_cwd(buffer_orig, &size1);
+  ASSERT_OK(err);
+  ASSERT_GT(size1, 0);
+  ASSERT_NE(buffer_orig[size1], '/');
+
+  err = uv_chdir(buffer_orig);
+  ASSERT_OK(err);
+
+  size2 = sizeof buffer_new;
+  err = uv_cwd(buffer_new, &size2);
+  ASSERT_OK(err);
+
+  ASSERT_EQ(size1, size2);
+  ASSERT_OK(strcmp(buffer_orig, buffer_new));
+
+  return 0;
+}