test_midi_device_sysex.html

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<html>

  <head>

    <title>WebMIDI Listener Test</title>

    <script src="/tests/SimpleTest/SimpleTest.js"></script>

    <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />

    <script type="application/javascript" src="MIDITestUtils.js"></script>

  </head>

  <body onload="runTests()">

    <script class="testbody" type="application/javascript">

     SimpleTest.waitForExplicitFinish();

     async function runTests() {

       await MIDITestUtils.permissionSetup(true);

       var sysexCheckCount = 0;

       var checkCount = 0;

       var input;

       var output;

       function checkSysexReceive(event) {

         checkCount++;

         sysexCheckCount++;

         if (sysexCheckCount == 1) {

           is(event.data[0], 0xF0, "Echoed sysex message via sysex port");

         } else {

           is(event.data[0], 0x90, "Echoed regular message via sysex port");

         if (checkCount == 5) {

           SimpleTest.finish();

       function checkNoSysexReceive(event) {

         checkCount++;

         is(event.data[0], 0x90, "Echoed regular message via non-sysex port");

         if (checkCount == 5) {

           SimpleTest.finish()

       // Request access without sysex.

       let access_regular = await navigator.requestMIDIAccess({ "sysex": false });

       let access_sysex = await navigator.requestMIDIAccess({ "sysex": true });

       ok(true, "MIDI Access Request successful");

       ok(true, "Check for sysex message drop");

       input = access_regular.inputs.get(await MIDITestUtils.inputInfo.id);

       output = access_sysex.outputs.get(await MIDITestUtils.outputInfo.id);

       let input_sysex = access_sysex.inputs.get(await MIDITestUtils.inputInfo.id);

       input_sysex.onmidimessage = checkSysexReceive;

       input.onmidimessage = checkNoSysexReceive;

       output.send([0xF0, 0x00, 0xF7]);

       output.send([0x90, 0x00, 0x01]);

       output.send([0x90, 0x00, 0x01]);

    </script>

  </body>

</html>