Method test_asyncio_repl_is_ok

Lib/test/test_repl.py:341–373

(self)

    @unittest.skipUnless(pty, "requires pty")
    def test_asyncio_repl_is_ok(self):
        m, s = pty.openpty()
        cmd = [sys.executable, "-I", "-m", "asyncio"]
        env = os.environ.copy()
        proc = subprocess.Popen(
            cmd,
            stdin=s,
            stdout=s,
            stderr=s,
            text=True,
            close_fds=True,
            env=env,
        )
        os.close(s)
        os.write(m, b"await asyncio.sleep(0)\n")
        os.write(m, b"exit()\n")
        output = []
        while select.select([m], [], [], SHORT_TIMEOUT)[0]:
            try:
                data = os.read(m, 1024).decode("utf-8")
                if not data:
                    break
            except OSError:
                break
            output.append(data)
        os.close(m)
        try:
            exit_code = proc.wait(timeout=SHORT_TIMEOUT)
        except subprocess.TimeoutExpired:
            proc.kill()
            exit_code = proc.wait()

        self.assertEqual(exit_code, 0, "".join(output))


@support.force_not_colorized_test_class