Method _run_pdb

Lib/test/test_pdb.py:3533–3557

(self, pdb_args, commands,
                 expected_returncode=0,
                 extra_env=None)

    @unittest.skipIf(sys.flags.safe_path,
                     'PYTHONSAFEPATH changes default sys.path')
    def _run_pdb(self, pdb_args, commands,
                 expected_returncode=0,
                 extra_env=None):
        self.addCleanup(os_helper.rmtree, '__pycache__')
        cmd = [sys.executable, '-m', 'pdb'] + pdb_args
        if extra_env is not None:
            env = os.environ | extra_env
        else:
            env = os.environ
        with subprocess.Popen(
                cmd,
                stdout=subprocess.PIPE,
                stdin=subprocess.PIPE,
                stderr=subprocess.PIPE,
                env = {**env, 'PYTHONIOENCODING': 'utf-8'}
        ) as proc:
            stdout, stderr = proc.communicate(str.encode(commands))
        stdout = bytes.decode(stdout) if isinstance(stdout, bytes) else stdout
        stderr = bytes.decode(stderr) if isinstance(stderr, bytes) else stderr
        self.assertEqual(
            proc.returncode,
            expected_returncode,
            f"Unexpected return code\nstdout: {stdout}\nstderr: {stderr}"
        )
        return stdout, stderr

    def run_pdb_script(self, script, commands,
                       expected_returncode=0,