Add mathematical correctness test suite#596

Merged

FBumann merged 45 commits intomainfrom

feature/test-math

Feb 6, 2026

Commits on Feb 2, 2026

Add new tests
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test_invest_optional_not_built: Changed the cheap boiler from eta=1.0 to eta=0.5. Now the expected cost is 40 (fuel=20/0.5). If investment logic were broken and allowed free
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5 new tests:
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Split into multiple files
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┌──────────────────────────┬──────────────┬──────────────────────────────────────────────────────────────────────────────────────────────────────┐
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⏺ All 44 tests pass. Every gap is now covered. Here's the final tally:
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Commits on Feb 3, 2026

Commits on Feb 4, 2026

Commits on Feb 5, 2026

Commits on Feb 6, 2026