From the idlelib/idle_test/README.txt file:

"The idle_test subdirectory should contain a test_xyz.py for each, where 'xyz' is lowercased even if xyz.py is not."

However, this means the test file names are inconsistent with the scripts they test. Of the 20 test_*.py files, all 20 are inconsistent. Some of the test filenames don't even match the file, such as test_config_name.py which tests configSectionNameDialog.py.

Since the original filenames aren't lowercase like the rest of the standard library, it would be better to rename them rather than renaming the test files: AutoComplete.py to autocomplete.py, ColorDelegator.py to colordelegator.py, etc. This is a find-and-replace change. Any shorter, better names for modules can also be made at this time.