protected MultipleTestsRunner newMultipleTestsRunner(List<WikiPage> pages) {
    // Add test url inputs to context's variableSource.
    final PagesByTestSystem pagesByTestSystem = new PagesByTestSystem(pages, root);

    MultipleTestsRunner runner =
        new MultipleTestsRunner(pagesByTestSystem, context.testSystemFactory);
    runner.setRunInProcess(debug);
    runner.setEnableRemoteDebug(remoteDebug);
    runner.addExecutionLogListener(log);
    addFormatters(runner);

    return runner;
  }