systemjs/test/test-runner.js

define({
  execute: function(tests) {
    var TestPage = function(el) {
      this.$results = el.querySelectorAll('tr td.result');
      this.$summary = el.querySelector('.summary');
    }
    TestPage.render = function(o) {
      var _ = '<table id="' + o.id + '">'
        + '<tr><th>Test</th><th>Result</th>';
      
      for (var i = 0; i < o.tests.length; i++)
        _ += '<tr><td class="name">' + o.tests[i].name + '</td><td class="result"></td></tr>';

      _ += '</table>';
      _ += '<p class="summary"></p>'
      return _;
    }
    TestPage.prototype = {
      setResult: function(index, result) {
        if (result)
          this.$results[index].innerHTML = result;
        else
          this.$results[index].innerHTML = 'Passed';
      },
      setSummary: function(passed, failed) {
        this.$summary.innerHTML = passed + ' tests passed, ' + failed + ' tests failed.';
      }
    };

    // draw the test table
    document.body.innerHTML = TestPage.render({
      id: 'test-table',
      tests: tests
    });
    var testPage = new TestPage(document.body);
    
    // run the tests
    var curTest = 0;
    var passed = 0;
    var failed = 0;
    doNextTest = function() {
      tests[curTest].run(function() {
        var result = tests[curTest].confirm.apply(null, arguments);
        testPage.setResult(curTest, result);

        if (result)
          failed++;
        else
          passed++;
        testPage.setSummary(passed, failed);

        curTest++;
        if (curTest == tests.length)
          testPage.setSummary(passed, failed);
        else
          doNextTest();
      }, function(err) {
        setTimeout(function() {
          throw err;
        }, 1);
        failed++;
        testPage.setSummary(passed, failed);
        curTest++;
        if (curTest == tests.length)
          testPage.setSummary(passed, failed);
      });
    }
    doNextTest();
  }
});