Fix visualization with -inf scores (from PR #380) #384
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When the visualizer import data from a checkpoint, this is sent to the javascript via a response object decoded with `resp.json()` in `fetchAndRender()` from "main.js". This is crashing if it does not respect fully json specs (and NaN, Infinity are not json valid even though js objects). This is useful for evolutions based on positive metrics to minimize (like a cost). In that case, we want to put -metric in combined_score (which will then be negative). Thus an evolved program not working should be given a worse score during evaluation. An easy way to do it is to put -inf (instead of not outputing any metric, which will be replaced by a 0 by default by the database when requesting a fitness). Doing so works well during evolution (ranking the top programs as expected), but during visualization, it was raising an error when fetching data.
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Add comprehensive tests for recently merged PRs: - test_llm_config_optional_params.py: Tests for optional temperature/top_p parameters (PR #385 - Anthropic model compatibility) - test_snapshot_artifacts_limit.py: Tests for configurable max_snapshot_artifacts (PR #386) - test_visualization_sanitization.py: Tests for -inf/+inf/NaN sanitization in visualization (PR #384) - test_early_stopping_config.py: Tests for event-based early stopping configuration (PR #375) - test_changes_description.py: Tests for large codebase support via changes description (PR #376) Total tests increased from 264 to 326. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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* Make max snapshot artifacts limit configurable Add `database.max_snapshot_artifacts` config option to control how many program artifacts are included in worker process snapshots. Default remains 100 for backward compatibility. - Set to a higher number to include more artifacts in prompts - Set to `null` (None) for unlimited artifacts (use with caution for large populations as this can significantly increase memory usage) Note: This limit only affects artifacts passed to worker processes, not the total artifacts stored. All program code is always available regardless of this setting. Closes #383 Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com> * Add tests for recent features Add comprehensive tests for recently merged PRs: - test_llm_config_optional_params.py: Tests for optional temperature/top_p parameters (PR #385 - Anthropic model compatibility) - test_snapshot_artifacts_limit.py: Tests for configurable max_snapshot_artifacts (PR #386) - test_visualization_sanitization.py: Tests for -inf/+inf/NaN sanitization in visualization (PR #384) - test_early_stopping_config.py: Tests for event-based early stopping configuration (PR #375) - test_changes_description.py: Tests for large codebase support via changes description (PR #376) Total tests increased from 264 to 326. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com> * Add integration tests for example validation Add comprehensive integration tests that verify: - Example config files load correctly - Initial programs have EVOLVE-BLOCK markers - Evaluators exist and have required functions - Evaluators can run on initial programs - Cascade evaluation functions are detected - Database stores and retrieves programs correctly - Program evolution tracking works Tests cover function_minimization, circle_packing, and signal_processing examples, plus general structure validation for all examples. Total tests: 346 (was 326) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
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Summary
This PR includes the fix from #380 with merge conflicts resolved.
Original PR: #380 by @nhuet
Problem: When using negative metrics (like
-inffor failing programs), the visualizer crashes because JSON doesn't supportInfinityandNaNvalues.Solution: Sanitize
-inf,+inf, andNaNvalues in program metrics before visualization by replacing them withNone. Failing programs are now properly shown in the NaN box in the performance tab.Changes
sanitize_program_for_visualization()function to replace non-JSON-compliant float values withNonecheck_json_float()helper to validate float valuesload_evolution_data()Closes #380
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