// META: script=/resources/test-only-api.js
// META: script=/serial/resources/common.js
// META: script=resources/automation.js
serial_test(async (t, fake) => {
const {port, fakePort} = await getFakeSerialPort(fake);
assert_equals(port.readable, null);
await port.open({baudRate: 9600});
const readable = port.readable;
assert_true(readable instanceof ReadableStream);
await port.close();
assert_equals(port.readable, null);
const reader = readable.getReader();
const {value, done} = await reader.read();
assert_true(done);
assert_equals(value, undefined);
}, 'SerialPort.readable is set by open() and closes on port close');