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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);
// Select a buffer size smaller than the amount of data transferred.
await port.open({baudRate: 9600, bufferSize: 64});
const reader = port.readable.getReader();
await fakePort.writable();
const data = new Uint8Array(1024); // Much larger than bufferSize above.
for (let i = 0; i < data.byteLength; ++i)
data[i] = i & 0xff;
fakePort.write(data);
const value = await readWithLength(reader, data.byteLength);
compareArrays(data, value);
reader.releaseLock();
await port.close();
}, 'Can read a large amount of data');
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