chore: add e2e tests for cellguide cxgs and related features

[atarashansky]

Adding E2E tests for the following interactions:

• Assert no author categories or standard categories - done
• Marker Gene Sets is visible and collapsed. Expansion reveals expected gene sets - done
• Gene sets are alphabetically sorted. - done
• Gene set expansion works as expected. - done
• Gene set modification/deletion and page refresh resets the gene set - done
• Categorical labels are sorted in descending order by mean expression when genesets are colored by. - done
• Labels with 0 cells after subsetting are filtered out. - done

Added a test fixture in the cellguide-cxgs/ path to set isCellGuideCxg equal to true.

Note that because we now have test coverage for the new categorical label behaviors, I removed the isCellGuideCxg feature flag from it. Now all explorer instances will benefit from the improved UX. Namely, the improvements are:

• Remove labels with 0 cell counts when subsetting
• Sort labels in descending order when coloring by gene expression or any other continuous metadata.

Also, to reduce the size of the new test fixture added (example.cxg), I set the gene expression tiledb arrays Xr and Xc to have no data in it. This is fine as none of the cellguide-specific tests require gene expression data.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 77.27%. Comparing base (0d204de) to head (54d97e3).
Report is 31 commits behind head on main.

❗ Current head 54d97e3 differs from pull request most recent head 0ae3b18. Consider uploading reports for the commit 0ae3b18 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #902      +/-   ##
==========================================
- Coverage   77.47%   77.27%   -0.21%     
==========================================
  Files          88       45      -43     
  Lines        6856     3512    -3344     
==========================================
- Hits         5312     2714    -2598     
+ Misses       1544      798     -746     

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[tihuan]

Looks really good! Thanks for adding comprehensive tests, Alec 🙏 Some v minor comments otherwise LGTM 🔥 !!

[tihuan]

Maybe we should put the CellGuideCXG test in its own test file?

[atarashansky]

Not sure how to config playwright to run the separate file - if you think it's important, perhaps you could commit it to this branch so I can learn? 👼

[tihuan]

LGTMMM! Thanks so much again, Alec 👏 🙏 🔥