test_hide_doubleclick.js

test_hide_doubleclick.js

test("Hide called only once if triggered multiple times", function(){
  var deferred = $.Deferred();
  this.mock($.prototype).expects('hide')
    .withArgs(2000)
    .once() // this once assertion will verify hide was called only once during the test
    .returns(deferred);

  hideLink();
  QUnit.equal($('#hide-status').text(), 'Link hiding in-progress');
  hideLink(); //runs the second time after .hide() was called
  deferred.resolve();
});