send-system-messages.https.html | Explore in Territory

<!DOCTYPE html>
<html>
<head>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
</head>
<body>
<script type="module">
import {MockMIDIService} from './resources/mock-midiservice.js';

const mock = new MockMIDIService();
// See https://www.midi.org/specifications/item/table-1-summary-of-midi-message
const systemMessages = (function(messages) {
    // Prepare various combinations of messages from input message array.
    let combinations = [];
    for (let i = 0; i < messages.length; ++i) {
        combinations.push(messages[i]);
        for (let j = 0; j < messages.length; ++j) {
            combinations.push(messages[i].concat(messages[j]));
            for (let k = 0; k < messages.length; ++k) {
                combinations.push(messages[i].concat(messages[j], messages[k]));
            }
        }
    }
    return combinations;
})([[0xf1, 0x00],
    [0xf2, 0x00, 0x00],
    [0xf3, 0x00],
    [0xf6]]);

const reservedSystemMessages = [[0xf4], [0xf5]];
const systemExclusiveMessages = [[0xf0, 0xf7], [0xf0, 0x00, 0xf7]];

promise_test(async _ => {
  await test_driver.set_permission({name: 'midi', sysex: true}, 'granted');
  const access = await navigator.requestMIDIAccess();
  const output = access.outputs.values().next().value;

  for (const message of systemMessages) {
    output.send(message);
  }

  for (const message of reservedSystemMessages) {
    assert_throws_js(TypeError, () => output.send(message));
  }

  for (const message of systemExclusiveMessages) {
    assert_throws_dom('InvalidAccessError', () => output.send(message));
  }
}, 'various types of system messages can be validated');

</script>
</body>
</html>
chromium/third_party/blink/web_tests/wpt_internal/webmidi/send-system-messages.https.html
