qunit-strategy.js

// STRATEGY for QUnit ~ surprisingly not bad! however, complete interception 
// of expected failures is not possible in the HTML Reporter as currently 
// implemented (QUnit v1.13 as of this writing 12-FEB-2014.
//
// requires context argument with strategy defined as { QUnit: QUnit }

where.strategy('QUnit', function qunitStrategy(context) {
  
  // this code reminds me of java for some reason...
  var QUnit = context.QUnit;
  var test;
  var realPush;
  var interceptingPush;
      
  if (context.intercept) {
    
    /*
     * this block attempts to capture failing assertions, reset them to 
     * passing (i.e., they are expected to fail), and push them to QUnit's 
     * assertions list with the real 'push()' method.
     */
     
    interceptingPush = function overridingAssertionsPush(details) {
      if (!details.result) {
        details.result = !details.result;
      }
      realPush.call(QUnit.config.current.assertions, details);
    };
    
    // override on start
    QUnit.testStart(function(detail) {
      realPush = QUnit.config.current.assertions.push;
      QUnit.config.current.assertions.push = interceptingPush;
    });
  
    // undo override on done
    QUnit.testDone(function(detail) {
      QUnit.config.current.assertions.push = realPush;
    });
  }

  QUnit.log(function onResult(details) {
    if (!details.result) {
    
      /* 
       * johann sonntagbauer fix 15 MAR 2015
       * the strategy will be called initial with test.result = 'Passed' 
       * therefore reset the test result
       */
       
      if (test.result === 'Passed') {
        test.result = '';
      }
      
      test.result += 'Error: expected ' + details.actual + ' to be ' + 
                     details.expected + '. ';
                    
      if (!context.intercept) {
        // this adds the QUnit sourceFromStacktrace() output
        test.result += '\n' + details.source;
      }
    }
  });
  
  return function testQUnit(fnTest, thisTest, value) {
  
    test = thisTest;

    fnTest.apply({}, [context].concat(value));
  };
});