Fix failing and slow testing suite

[ubdbra001]

Pin dependencies to fix failing and slow test suite.

• matplotlib 3.11 produces different images to the baseline. Updating the baseline breaks tests for Python 3.10, so pinning this for now.
• syrupy >= 5.5 slows down running the tests so reverting to a previous version that deosn't cause this issue

Both of these are plaster fixes, longer term solutions are required:

• Baseline images should be updated, probably a job for when python 3.10 is dropped
• The underlying issue for syrupy is likely the large snapshot for the nodestats tests, this should be investigated.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 84.11%. Comparing base (86492cf) to head (98bc988).
⚠️ Report is 25 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1380   +/-   ##
=======================================
  Coverage   84.11%   84.11%           
=======================================
  Files          31       31           
  Lines        6447     6448    +1     
=======================================
+ Hits         5423     5424    +1     
  Misses       1024     1024           

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[ns-rse]

I've only had a cursory look at what tests are failing (spent the morning trying to recover what looks like a failed harddrive so on a temporary computer that isn't ideally configured).

You could try adding a marks=pytest.mark.skipif() clause to skip tests where images are changing so they don't run if Python != 3.10 for the time being, then update the images with newere Python/matplotlib/numpy. Or update the images and skip if on 3.10. You should be able to get this from environment variables in some manner.

I'd probably want to check what is changing in the images though but I'm afraid I don't have time to investigate that myself right now (perhaps add them to #1377 if they are readily available they will be under somewhere like /tmp/pytest/. You can also run specific tests and use the flag --mpl-generate-summary=html which is a useful way of getting an insight to what is changing.

[ns-rse]

Perhaps make it easier for people to find why the versions have been pinned.

[ubdbra001]

To do:

1. Skip testing for 3.10, and update figure snapshots
2. Pin syrupy and add issue outlining why

[ubdbra001]

Test are failing due to a bug introduced in #1376, looks like it is caught and fixed in #1382

Edit: Tests passing on my fork where I haven't added #1376 yet

[SylviaWhittle]

All good!

[SylviaWhittle]

Interesting that this changed too since it is only supposed to be a font change from what we were talking about. But I am not concerned.

[tobyallwood]

Everything looks good to me I think