kz930 opened a new pull request, #8359:
URL: https://github.com/apache/texera/pull/8359

   ### What changes were proposed in this PR?
   
   Two frames agree when they hold the same rows in the same order with the same
   values, and the comparison says which of those failed rather than that they
   differ. A float is compared within a tolerance, since the two paths reach the
   same number by different arithmetic.
   
   A visualization has no frame to compare. What it emits is a figure, and the
   meaning of a figure is in the numbers behind it, so the figures are compared
   number by number; a plot that renders as an image is compared as the HTML it
   emits instead.
   
   ### Any related issues, documentation, discussions?
   
   Part of #8325, 5 of 15. It builds on #8327, which adds the trait and the 
translator, and on the verification pieces before it; each is sized to be read 
in one sitting rather than landing as one diff.
   
   ### How was this PR tested?
   
   The tests in this change cover it. The whole set is exercised together once 
the last piece lands: every operator run through the engine and through its 
generated script, and the two answers compared.
   
   ### Was this PR authored or co-authored using generative AI tooling?
   
   Generated-by: Claude Code (Opus 5)
   


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