Added several tests for the rich_text._opt() method
--HG-- branch : 3.1
This pull request adds several tests for the _opt method in the CellRichText class.
All legacy (hg-git based) Projects have been automatically migrated to native with the upgrade of 2025-01-23
--HG-- branch : 3.1
This pull request adds several tests for the _opt method in the CellRichText class.