[Enhance] enhance runner test case (#631)

* Add runner test cast

* Fix unit test

* fix unit test

* pop None if key does not exist

* Fix is_model_wrapper and force register class in test_runner

* [Fix] Fix is_model_wrapper

* destroy group after ut

* register module in testcase

* fix as comment

* minor refine

Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>

* fix lint

Co-authored-by: Zaida Zhou <58739961+zhouzaida@users.noreply.github.com>