LPS-51162 test file size limits on add and update
LPS-51162 refactor tests with RAII-like util
LPS-51162 put size validations into wrapper
LPS-51162 don't validate size in local service

As the validation is done in the wrapper, at the top level, we can
remove the validation from here safely.
LPS-51162 Although file will never be null here, we will include the check for consistancy.
LPS-51162 Rename
LPS-51162 SF