--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/third_party/libuv/test/test-get-passwd.c	Wed Jan 14 19:39:52 2026 -0800
@@ -0,0 +1,211 @@
+/* Copyright libuv 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>
+#ifndef _WIN32
+#include <unistd.h>
+#include <sys/types.h>
+#endif
+
+TEST_IMPL(get_passwd) {
+/* TODO(gengjiawen): Fix test on QEMU. */
+#if defined(__QEMU__)
+  RETURN_SKIP("Test does not currently work in QEMU");
+#endif
+
+  uv_passwd_t pwd;
+  size_t len;
+  int r;
+
+  /* Test the normal case */
+  r = uv_os_get_passwd(&pwd);
+  ASSERT_OK(r);
+  len = strlen(pwd.username);
+  ASSERT_GT(len, 0);
+
+#ifdef _WIN32
+  ASSERT_NULL(pwd.shell);
+#else
+  len = strlen(pwd.shell);
+# ifndef __PASE__
+  ASSERT_GT(len, 0);
+# endif
+#endif
+
+  len = strlen(pwd.homedir);
+  ASSERT_GT(len, 0);
+
+#ifdef _WIN32
+  if (len == 3 && pwd.homedir[1] == ':')
+    ASSERT_EQ(pwd.homedir[2], '\\');
+  else
+    ASSERT_NE(pwd.homedir[len - 1], '\\');
+#else
+  if (len == 1)
+    ASSERT_EQ(pwd.homedir[0], '/');
+  else
+    ASSERT_NE(pwd.homedir[len - 1], '/');
+#endif
+
+#ifdef _WIN32
+  ASSERT_EQ(pwd.uid, (unsigned)-1);
+  ASSERT_EQ(pwd.gid, (unsigned)-1);
+#else
+  ASSERT_NE(pwd.uid, (unsigned)-1);
+  ASSERT_NE(pwd.gid, (unsigned)-1);
+  ASSERT_EQ(pwd.uid, geteuid());
+  if (pwd.uid != 0 && pwd.gid != getgid())
+    /* This will be likely true, as only root could have changed it. */
+    ASSERT_EQ(pwd.gid, getegid());
+#endif
+
+  /* Test uv_os_free_passwd() */
+  uv_os_free_passwd(&pwd);
+
+  ASSERT_NULL(pwd.username);
+  ASSERT_NULL(pwd.shell);
+  ASSERT_NULL(pwd.homedir);
+
+  /* Test a double free */
+  uv_os_free_passwd(&pwd);
+
+  ASSERT_NULL(pwd.username);
+  ASSERT_NULL(pwd.shell);
+  ASSERT_NULL(pwd.homedir);
+
+  /* Test invalid input */
+  r = uv_os_get_passwd(NULL);
+  ASSERT_EQ(r, UV_EINVAL);
+
+  return 0;
+}
+
+
+TEST_IMPL(get_passwd2) {
+/* TODO(gengjiawen): Fix test on QEMU. */
+#if defined(__QEMU__)
+  RETURN_SKIP("Test does not currently work in QEMU");
+#endif
+
+  uv_passwd_t pwd;
+  uv_passwd_t pwd2;
+  size_t len;
+  int r;
+
+  /* Test the normal case */
+  r = uv_os_get_passwd(&pwd);
+  ASSERT_OK(r);
+
+  r = uv_os_get_passwd2(&pwd2, pwd.uid);
+
+#ifdef _WIN32
+  ASSERT_EQ(r, UV_ENOTSUP);
+  (void) &len;
+
+#else
+  ASSERT_OK(r);
+  ASSERT_EQ(pwd.uid, pwd2.uid);
+  ASSERT_STR_EQ(pwd.username, pwd2.username);
+  ASSERT_STR_EQ(pwd.shell, pwd2.shell);
+  ASSERT_STR_EQ(pwd.homedir, pwd2.homedir);
+  uv_os_free_passwd(&pwd2);
+
+  r = uv_os_get_passwd2(&pwd2, 0);
+  ASSERT_OK(r);
+
+  len = strlen(pwd2.username);
+  ASSERT_GT(len, 0);
+#if defined(__PASE__)
+  // uid 0 is qsecofr on IBM i
+  ASSERT_STR_EQ(pwd2.username, "qsecofr");
+#else
+  ASSERT_STR_EQ(pwd2.username, "root");
+#endif
+  len = strlen(pwd2.homedir);
+# ifndef __PASE__
+  ASSERT_GT(len, 0);
+#endif
+  len = strlen(pwd2.shell);
+# ifndef __PASE__
+  ASSERT_GT(len, 0);
+# endif
+
+  uv_os_free_passwd(&pwd2);
+#endif
+
+  uv_os_free_passwd(&pwd);
+
+  /* Test invalid input */
+  r = uv_os_get_passwd2(NULL, pwd.uid);
+#ifdef _WIN32
+  ASSERT_EQ(r, UV_ENOTSUP);
+#else
+  ASSERT_EQ(r, UV_EINVAL);
+#endif
+
+  return 0;
+}
+
+
+TEST_IMPL(get_group) {
+/* TODO(gengjiawen): Fix test on QEMU. */
+#if defined(__QEMU__)
+  RETURN_SKIP("Test does not currently work in QEMU");
+#endif
+
+  uv_passwd_t pwd;
+  uv_group_t grp;
+  size_t len;
+  int r;
+
+  r = uv_os_get_passwd(&pwd);
+  ASSERT_OK(r);
+
+  r = uv_os_get_group(&grp, pwd.gid);
+
+#ifdef _WIN32
+  ASSERT_EQ(r, UV_ENOTSUP);
+  (void) &len;
+
+#else
+  ASSERT_OK(r);
+  ASSERT_EQ(pwd.gid, grp.gid);
+
+  len = strlen(grp.groupname);
+  ASSERT_GT(len, 0);
+
+  uv_os_free_group(&grp);
+#endif
+
+  uv_os_free_passwd(&pwd);
+
+  /* Test invalid input */
+  r = uv_os_get_group(NULL, pwd.gid);
+#ifdef _WIN32
+  ASSERT_EQ(r, UV_ENOTSUP);
+#else
+  ASSERT_EQ(r, UV_EINVAL);
+#endif
+
+  return 0;
+}