code: function (sequenceIndex, requestType, data) {
  		'use strict';
  		var message = "Request #" + (sequenceIndex + 1) + " (" + requestType + ")";
  		if (data.message) {
  			message += ": " + data.message;
  		}
  		data.message = message;
  		
  		// the message has information that should be displayed by the test runner
  		data.generatedMessage = false;
  		
  		data.name = "AssertionError";
  		throw new AssertionError(message, data);
  	}
docs: Internal method.