Spy Tests

qunit.js

var Windows = {
  method1: function () { }
};

(function ($) {
  module('windows-api', {
    setup: function () {
      sinon.spy(Windows, 'method1');
    },

    teardown: function () {
      Windows.method1.restore();
    }
  });

  test('do something on our end that uses the Windows API', function () {
    // do something with the Windows API

    sinon.assert.calledOnce(Windows.method1);
  });
}) (jQuery);