Update test_cmd_line_script.py from CPython v3.12.0

Lib/test/test_cmd_line_script.py

@@ -662,9 +662,9 @@ class CmdLineTest(unittest.TestCase):
             self.assertEqual(
                 stderr.splitlines()[-3:],
                 [
-                    b'    foo"""',
-                    b'          ^',
-                    b'SyntaxError: f-string: empty expression not allowed',
+                    b'    foo = f"""{}',
+                    b'               ^',
+                    b'SyntaxError: f-string: valid expression required before \'}\'',
                 ],
             )
 
@@ -685,8 +685,31 @@ class CmdLineTest(unittest.TestCase):
                 ],
             )
 
-    # TODO: RUSTPYTHON
-    @unittest.expectedFailure
+    def test_syntaxerror_null_bytes(self):
+        script = "x = '\0' nothing to see here\n';import os;os.system('echo pwnd')\n"
+        with os_helper.temp_dir() as script_dir:
+            script_name = _make_test_script(script_dir, 'script', script)
+            exitcode, stdout, stderr = assert_python_failure(script_name)
+            self.assertEqual(
+                stderr.splitlines()[-2:],
+                [   b"    x = '",
+                    b'SyntaxError: source code cannot contain null bytes'
+                ],
+            )
+
+    def test_syntaxerror_null_bytes_in_multiline_string(self):
+        scripts = ["\n'''\nmultilinestring\0\n'''", "\nf'''\nmultilinestring\0\n'''"] # Both normal and f-strings
+        with os_helper.temp_dir() as script_dir:
+            for script in scripts:
+                script_name = _make_test_script(script_dir, 'script', script)
+                _, _, stderr = assert_python_failure(script_name)
+                self.assertEqual(
+                    stderr.splitlines()[-2:],
+                    [   b"    multilinestring",
+                        b'SyntaxError: source code cannot contain null bytes'
+                    ]
+                )
+
     def test_consistent_sys_path_for_direct_execution(self):
         # This test case ensures that the following all give the same
         # sys.path configuration:
@@ -785,7 +808,7 @@ class CmdLineTest(unittest.TestCase):
         with os_helper.temp_dir() as work_dir:
             script_name = _make_test_script(work_dir, 'script.py', script)
             with open(script_name, "r") as fp:
-                p = spawn_python(f"/dev/fd/{fp.fileno()}", close_fds=False, pass_fds=(0,1,2,fp.fileno()))
+                p = spawn_python(f"/dev/fd/{fp.fileno()}", close_fds=True, pass_fds=(0,1,2,fp.fileno()))
                 out, err = p.communicate()
                 self.assertEqual(out, b"12345678912345678912345\n")