DM-45317: Testing utils

[timj]

Checklist

• ran Jenkins
• added a release note for user-visible changes to doc/changes
• (if changing dimensions.yaml) make a copy of dimensions.yaml in configs/old_dimensions

[codecov]

Codecov Report

Attention: Patch coverage is 51.75439% with 55 lines in your changes missing coverage. Please review.

Project coverage is 34.33%. Comparing base (ce18b02) to head (bdc04b8).

Files	Patch %	Lines
python/lsst/daf/butler/dimensions/_coordinate.py	69.76%	10 Missing and 3 partials ⚠️
.../butler/registry/datasets/byDimensions/_storage.py	0.00%	4 Missing and 1 partial ⚠️
...daf/butler/dimensions/_data_coordinate_iterable.py	57.14%	3 Missing ⚠️
...on/lsst/daf/butler/direct_butler/_direct_butler.py	40.00%	1 Missing and 2 partials ⚠️
...hon/lsst/daf/butler/direct_query_driver/_driver.py	0.00%	3 Missing ⚠️
...thon/lsst/daf/butler/registry/dimensions/static.py	40.00%	3 Missing ⚠️
.../butler/direct_query_driver/_sql_column_visitor.py	0.00%	2 Missing ⚠️
python/lsst/daf/butler/queries/_query.py	0.00%	2 Missing ⚠️
...af/butler/registry/datasets/byDimensions/tables.py	0.00%	1 Missing and 1 partial ⚠️
python/lsst/daf/butler/registry/queries/_query.py	0.00%	2 Missing ⚠️
... and 16 more

❗ There is a different number of reports uploaded between BASE (ce18b02) and HEAD (bdc04b8). Click for more details.

HEAD has 4 uploads less than BASE

Flag	BASE (ce18b02)	HEAD (bdc04b8)
	6	2

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #1039       +/-   ##
===========================================
- Coverage   89.36%   34.33%   -55.03%     
===========================================
  Files         359      285       -74     
  Lines       45511    32816    -12695     
  Branches     9354     7710     -1644     
===========================================
- Hits        40673    11269    -29404     
- Misses       3536    20883    +17347     
+ Partials     1302      664      -638     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[timj]

Problem is fixed in lsst/utils#185