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byrongamatosandClaude Sonnet 4.6
a1f7ad5e68
Toby r1 finding: three exports in src/geometry.js had no class-killer tests.
Named mutations that were undetected before this commit:
- camBaseDistU: Math.max(span,4)→span leaves camBaseDistU(0)=65 vs 77
- camLowFretPullbackU: drop Max(0,..) leaves (10)=-20 vs 0
- _makeGaussTex: default sigma=0 leaves centre-pixel alpha=0 vs 255
Each test is written to call without the value that makes the mutation
transparent (sigma passed without default; span=0 for the floor case;
fret=10 for the clamp case). Mutation verification run before commit:
all three mutations confirmed caught, all three pass on real code.
Suite (cmd): node --test tests/js/highway_3d*.test.js plugins/highway_3d/tests/*.test.js
Base (84d3376): 169/169
Tip: 172/172 (+3 discriminating tests)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014uZ169yfoFYArXz962g7KW