test_ADs for PeriodicTransform

[st--]

Resolves a todo comment

[codecov[bot]]

Codecov Report

Patch coverage has no change and project coverage change: -3.75 :warning:

Comparison is base (ef6d459) 94.16% compared to head (58ddb5d) 90.41%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #449      +/-   ##
==========================================
- Coverage   94.16%   90.41%   -3.75%     
==========================================
  Files          52       52              
  Lines        1387     1387              
==========================================
- Hits         1306     1254      -52     
- Misses         81      133      +52     

see 8 files with indirect coverage changes

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[st--]

Looks like it's not actually working yet. And why it's not isn't obvious to me :confused: