TestingParty08: load callback default need a test

Define a menu item like test/%test and one like test/%/test . Assert that test_load fires when visiting test/1 and not fires when visiting test/1/test. Assert that whatever is returned by test_load is passed to access callback, title callback (test the case when title and title arguments are specified and also when title callback and title arguments are -- these needs one more menu item, test/%test/1 will do) and page callback as well. test_load can just return randomname.