code: @Test public void extensionProcessorsShouldBeAvailable() throws Exception {
    final ConfigurableWroFilter filter=new ConfigurableWroFilter();
    final Properties properties=new Properties();
    properties.setProperty(ConfigurableProcessorsFactory.PARAM_POST_PROCESSORS,RhinoCoffeeScriptProcessor.ALIAS);
    filter.setProperties(properties);
    filter.init(mockFilterConfig);
    final WroManagerFactory factory=filter.newWroManagerFactory();
    final WroManager wroManager=factory.create();
    final ProcessorsFactory processorsFactory=wroManager.getProcessorsFactory();
    final Collection<ResourcePostProcessor> postProcessors=processorsFactory.getPostProcessors();
    assertEquals(1,postProcessors.size());
  }
  