feat(4.0): Load into memory if add_labels_file != None

[Bento007]

Reason for Change

• fix: automation bugs #581

Changes

• Update read_h5ad to read into memory if to_memory is True
• Add supporting unit tests

Testing

• run the unit tests

Notes for Reviewer

[codecov]

Codecov Report

Merging #636 (5165cef) into main (1f482ae) will increase coverage by 0.02%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #636      +/-   ##
==========================================
+ Coverage   83.23%   83.26%   +0.02%     
==========================================
  Files          19       19              
  Lines        1724     1727       +3     
==========================================
+ Hits         1435     1438       +3     
  Misses        289      289              

Flag	Coverage Δ
unittests	83.26% <100.00%> (+0.02%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
cellxgene_schema_cli/cellxgene_schema/utils.py	92.10% <100.00%> (+0.21%)	⬆️
cellxgene_schema_cli/cellxgene_schema/validate.py	93.61% <100.00%> (+0.01%)	⬆️

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[nayib-jose-gloria]

LGTM, thank you!