gh-152936: Fix test_os and test_posix failures on Android

Author: sabamdarif

Lib/test/test_os/test_os.py

@@ -4517,7 +4517,10 @@ def test_oserror_filename(self):
                 try:
                     func(name, *func_args)
                 except OSError as err:
-                    self.assertIs(err.filename, name, str(func))
+                    if func is os.chroot and support.is_android and os.getuid() != 0:
+                        self.assertIsNone(err.filename, str(func))
+                    else:
+                        self.assertIs(err.filename, name, str(func))
                 except UnicodeDecodeError:
                     pass
                 else:

Lib/test/test_os/test_posix.py

@@ -99,6 +99,9 @@ def test_getresgid(self):
     @unittest.skipUnless(hasattr(posix, 'setresuid'),
                          'test needs posix.setresuid()')
     def test_setresuid(self):
+        if support.is_android and os.getuid() != 0:
+            self.assertRaises(PermissionError, posix.setresuid, -1, -1, -1)
+            return
         current_user_ids = posix.getresuid()
         self.assertIsNone(posix.setresuid(*current_user_ids))
         # -1 means don't change that value.
@@ -116,6 +119,9 @@ def test_setresuid_exception(self):
     @unittest.skipUnless(hasattr(posix, 'setresgid'),
                          'test needs posix.setresgid()')
     def test_setresgid(self):
+        if support.is_android and os.getuid() != 0:
+            self.assertRaises(PermissionError, posix.setresgid, -1, -1, -1)
+            return
         current_group_ids = posix.getresgid()
         self.assertIsNone(posix.setresgid(*current_group_ids))
         # -1 means don't change that value.