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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/common.js"></script>
<script src="resources/manual.js"></script>
</head>
<body>
<p>
These tests require a serial device to be connected and disconnected.
</p>
<script>
manual_serial_test(async (t, port) => {
const watcher = new EventWatcher(t, navigator.serial, ['disconnect']);
await port.open({baudRate: 115200, bufferSize: 1024});
const disconnectPromise = watcher.wait_for(['disconnect'])
const reader = port.readable.getReader();
const disconnectMessage = document.createElement('div');
disconnectMessage.textContent = 'Disconnect the device now.';
document.body.appendChild(disconnectMessage);
try {
while (true) {
const {value, done} = await reader.read();
// Ignore |value| in case the device happens to produce data. It is
// not important for this test.
assert_false(done);
}
} catch (e) {
assert_equals(e.constructor, DOMException);
assert_equals(e.name, 'NetworkError');
}
reader.releaseLock();
assert_equals(port.readable, null);
let event = await disconnectPromise;
assert_equals(event.target, port);
disconnectMessage.remove();
await port.close();
}, 'Disconnect during read is detected.');
manual_serial_test(async (t, port) => {
const watcher = new EventWatcher(t, navigator.serial, ['disconnect']);
await port.open({baudRate: 115200, bufferSize: 1024});
const disconnectPromise = watcher.wait_for(['disconnect'])
const writer = port.writable.getWriter();
const disconnectMessage = document.createElement('div');
disconnectMessage.textContent = 'Disconnect the device now.';
document.body.appendChild(disconnectMessage);
const data = new Uint8Array(4096);
try {
while (true) {
await writer.write(data);
}
} catch (e) {
assert_equals(e.constructor, DOMException);
assert_equals(e.name, 'NetworkError');
}
writer.releaseLock();
assert_equals(port.writable, null);
let event = await disconnectPromise;
assert_equals(event.target, port);
disconnectMessage.remove();
await port.close();
}, 'Disconnect during write is detected.');
</script>
</body>
</html>