Wrote test for Issue#29576 with resampling in non-unitary quarters
- [ ] closes #29576
- [ ] Added test to `tests/resample/test_datetime_index.py` following expected and actual output of original commenter
- [ ] All [code checks passed] (https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#pre-commit).

Noticed the tests failed, I don't think the issue was fixed. Is the the expected output given in the issue description what the test should anticipate? I don't think `expected` is correctly constructed to match https://github.com/pandas-dev/pandas/issues/29576#issue-521751237 Thanks for the pull request, but it appears to have gone stale. If interested in continuing, please merge in the main branch, address any review comments and/or failing tests, and we can reopen.