code: @Test public void testConfigureDebugWithPropertiesFileSet(){
    factory=new PropertiesAndFilterConfigWroConfigurationFactory(filterConfig){
      @Override protected Properties newDefaultProperties(){
        final Properties props=new Properties();
        props.put(ConfigConstants.debug.name(),Boolean.TRUE.toString());
        return props;
      }
    }
  ;
    Mockito.when(filterConfig.getInitParameter(ConfigConstants.debug.name())).thenReturn(Boolean.FALSE.toString());
    final WroConfiguration config=factory.create();
    Assert.assertEquals(false,config.isDebug());
  }
  