gecko-dev/dom/browser-element/mochitest/browserElement_SetNFCFocus.js

/* Any copyright is dedicated to the public domain.
   http://creativecommons.org/publicdomain/zero/1.0/ */

// Bug 1188639 - Check permission to use setNFCFocus
"use strict";

SimpleTest.waitForExplicitFinish();
browserElementTestHelpers.setEnabledPref(true);

function hasSetNFCFocus() {
  return new Promise((resolve, reject) => {
    var iframe = document.createElement('iframe');
    iframe.setAttribute('mozbrowser', 'true');
    iframe.addEventListener('mozbrowserloadend', e => {
      is(iframe.setNFCFocus !== undefined, true,
         "has permission to use setNFCFocus");
      resolve();
    });
    document.body.appendChild(iframe);
  });
}

function runTest() {
  hasSetNFCFocus().then(SimpleTest.finish);
}

addEventListener('testready', runTest);