.getActivateExtension(url, new String[]{}, "group1");
Assert.assertEquals(1, list.size());
Assert.assertTrue(list.get(0).getClass() == GroupActivateExtImpl.class);
// test value
url = url.removeParameter(Constants.GROUP_KEY);
url = url.addParameter(Constants.GROUP_KEY, "value");
url = url.addParameter("value", "value");
list = ExtensionLoader.getExtensionLoader(ActivateExt1.class)
.getActivateExtension(url, new String[]{}, "value");
Assert.assertEquals(1, list.size());