Revert "[3.11] pythongh-84461: Fix Emscripten umask and permission issues (pythonGH-94002) (pythonGH-94006)"

This reverts commit 1073184.

Author: vstinner

Lib/test/libregrtest/main.py

@@ -600,16 +600,6 @@ def save_xml_result(self):
             for s in ET.tostringlist(root):
                 f.write(s)
 
-    def fix_umask(self):
-        if support.is_emscripten:
-            # Emscripten has default umask 0o777, which breaks some tests.
-            # see https://github.com/emscripten-core/emscripten/issues/17269
-            old_mask = os.umask(0)
-            if old_mask == 0o777:
-                os.umask(0o027)
-            else:
-                os.umask(old_mask)
-
     def set_temp_dir(self):
         if self.ns.tempdir:
             self.tmp_dir = self.ns.tempdir
@@ -670,8 +660,6 @@ def main(self, tests=None, **kwargs):
 
         self.set_temp_dir()
 
-        self.fix_umask()
-
         if self.ns.cleanup:
             self.cleanup()
             sys.exit(0)

Lib/test/test_posix.py

@@ -787,7 +787,6 @@ def check_stat(uid, gid):
             check_stat(uid, gid)
 
     @os_helper.skip_unless_working_chmod
-    @unittest.skipIf(support.is_emscripten, "getgid() is a stub")
     def test_chown(self):
         # raise an OSError if the file does not exist
         os.unlink(os_helper.TESTFN)
@@ -799,7 +798,6 @@ def test_chown(self):
 
     @os_helper.skip_unless_working_chmod
     @unittest.skipUnless(hasattr(posix, 'fchown'), "test needs os.fchown()")
-    @unittest.skipIf(support.is_emscripten, "getgid() is a stub")
     def test_fchown(self):
         os.unlink(os_helper.TESTFN)
 
@@ -1358,7 +1356,6 @@ def test_chmod_dir_fd(self):
 
     @unittest.skipUnless(hasattr(os, 'chown') and (os.chown in os.supports_dir_fd),
                          "test needs dir_fd support in os.chown()")
-    @unittest.skipIf(support.is_emscripten, "getgid() is a stub")
     def test_chown_dir_fd(self):
         with self.prepare_file() as (dir_fd, name, fullname):
             posix.chown(name, os.getuid(), os.getgid(), dir_fd=dir_fd)

Lib/test/test_pydoc.py

@@ -950,7 +950,6 @@ def test_apropos_with_unreadable_dir(self):
         self.assertEqual(err.getvalue(), '')
 
     @os_helper.skip_unless_working_chmod
-    @unittest.skipIf(is_emscripten, "cannot remove x bit")
     def test_apropos_empty_doc(self):
         pkgdir = os.path.join(TESTFN, 'walkpkg')
         os.mkdir(pkgdir)