TST: add tests for using .at() with DateTime indexes (#48286)
TST: add tests for using .at() with DateTime indexes (#48286)

* add tests outlined in GH29709

* fix styling error caught by github actions

* made changes based on suggestions from patrick

* fix pep8 mistakes

* remove usage of to_datetime()

* fix error in pre-commit checks also move my new test to the bottom of the class since it was not put in the right place before

Co-authored-by: Neal Muppidi <35e76b5cc38dcedcd1cdf7923c3ec892876c85c2@neals-macbook-pro.local>
pandas-dev/pandas,pandas-dev/pandas,pandas-dev/pandas,pandas-dev/pandas