@Test
public void webAppLoaderCanLoadInstanceOfLoadOnStartUp() throws Exception {

    ClassLoader classLoader = new ServletClassLoader();
    Thread.currentThread().setContextClassLoader(classLoader);
    Map<String, ServletWrapper> router = new HashMap<>();
    initRouter(router);
    WebAppLoader loader = new WebAppLoader(router, classLoader);
    Map<String, ServletWrapper> actual = loader.loadOnStartUp();
    Map<String, ServletWrapper> expect = new HashMap<>();
    initExpect(expect);
    assertEquals(expect, actual);
}