split TestAsserts by functionality (#58919)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/58919
Instead of having one large TestAsserts test case, we split of tests for
self-contained functionality like container or complex checking into
separate test cases. That makes it a lot easier to keep an overview over
what is tested.
Test Plan: Imported from OSS
Reviewed By: anjali411
Differential Revision: D29259407
Pulled By: mruberry
fbshipit-source-id: 9769cb6d56c1a3790280542db398cb247986b09a
