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// 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);
await promise_rejects_dom(t, 'InvalidStateError', port.close());
}, 'A SerialPort cannot be closed if it was never opened.');
serial_test(async (t, fake) => {
const {port, fakePort} = await getFakeSerialPort(fake);
await port.open({baudRate: 9600});
await port.close();
await promise_rejects_dom(t, 'InvalidStateError', port.close());
}, 'A SerialPort cannot be closed if it is already closed.');
serial_test(async (t, fake) => {
const {port, fakePort} = await getFakeSerialPort(fake);
await port.open({baudRate: 9600});
const closePromise = port.close();
await promise_rejects_dom(t, 'InvalidStateError', port.close());
await closePromise;
}, 'A SerialPort cannot be closed if it is being closed.');
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