Logging ******* .. code-block:: javascript jstestdriver.console.log(expected, result); console.log(expected, result); To view ``console.log`` output on the command line, add the ``captureConsole`` option e.g:: java -jar JsTestDriver.jar --tests all --captureConsole When this option is specified than we try to intercept the console log messages and display them on the test runner standard out (FireFox does not allow overwriting of the console object).