scratch-blocks/tests/jsunit/test_runner.js

var webdriverio = require('webdriverio');
var options = {
    desiredCapabilities: {
        browserName: 'chrome'
    }
};

// Parse jsunit html report, exit(1) if there are any failures.
var testHtml = function (htmlString) {
  var regex = /[\d]+\spassed,\s([\d]+)\sfailed./i;
  var numOfFailure = regex.exec(htmlString)[1];
  var regex2 = /Unit Tests for .*]/;
  var testStatus = regex2.exec(htmlString)[0];
  console.log("============Unit Test Summary=================");
  console.log(testStatus);
  var regex3 = /\d+ passed,\s\d+ failed/;
  var detail = regex3.exec(htmlString)[0];
  console.log(detail);
  console.log("============Unit Test Summary=================");
  if (parseInt(numOfFailure) !== 0) {
    console.log(htmlString);
    process.exit(1);
  }
};

var path = process.cwd();
var browser = webdriverio
    .remote(options)
    .init();

browser
  .url("file://" + path + "/tests/jsunit/vertical_tests.html").pause(5000)
  .getHTML("#closureTestRunnerLog")
  .then(testHtml)
  .url("file://" + path + "/tests/jsunit/horizontal_tests.html").pause(5000)
  .getHTML("#closureTestRunnerLog")
  .then(testHtml)
  .catch(function(err) {
    console.log(err);
    browser.end();
    process.exit(1);
  });