midi-permission.html

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This WPT test may be referenced by the following Test IDs:
- /permissions/midi-permission.html - WPT Dashboard Interop Dashboard

<!doctype html>

<meta charset=utf-8>

<title>Test WebIDL conversion when querying the "midi" permission</title>

<script src=/resources/testharness.js></script>

<script src=/resources/testharnessreport.js></script>

<div id="log"></div>

<script>

  promise_test(async (test) => {

    let calledCount = 0;

    const status = await navigator.permissions.query({

      get name() {

        calledCount++;

        return "midi";

},

});

    assert_true(status instanceof PermissionStatus);

    assert_equals(status.name, "midi", `permission's name should be "midi"`);

//

    // First call should be from:

//

    //     Let rootDesc be the object permissionDesc refers to, converted to an

    //     IDL value of type PermissionDescriptor.

//

    // Second from:

//

    //     Let typedDescriptor be the object permissionDesc refers to,

    //     converted to an IDL value of rootDesc's name's permission descriptor

    //     type.

//

    // See: https://w3c.github.io/permissions/#query-method

//

    assert_equals(calledCount, 2, "midi permission should be converted twice");

  }, `querying the "midi" permission requires two WebIDL conversions`);

</script>