Run asynchronous qunit test serially

qunit-async-test.js

test( 'async tests', function() {
  
  // My custom async function
  function ajax(data, successCallback) {
    $.ajax({
      url: 'server.php',
      data: data,
      success: successCallback,
      error: function( xhr, textStatus ){
        ok( false, textStatus );
      }
    });
  };
  
  // Run next test in tests array, or start().
  function next(){
    var test = tests.shift();
    test ? test() : start();
  };
  
  // Tests to run, in order.
  var tests = [
    function(){
      ajax({ foo: 1 }, function(){
        ok(true);
        next();
      });
    },
    function(){
      ajax({ bar: 2 }, function(){
        ok(true);
        next();
      });
    },
    function(){
      ajax({ baz: 3 }, function(){
        ok(true);
        next();
      });
    },
  ];
  
  stop();
  next();
});