- Pin black version in requirements-dev.txt (was >=24.0.0)
- Update pre-commit to use black 26.3.1 with Python 3.12
- Add language_version: python3.12 to pre-commit black hook
- Reformat files with new black version for consistency
- Remove app/components/ and app/pages/ from ruff/black excludes
- Pre-commit reformatted multi-line strings for consistency
- All files now follow the same code style
- test_backtest_page_loads_with_valid_databento_dates: Verifies page loads with valid default dates
- test_backtest_page_handles_invalid_dates_gracefully: Ensures validation errors instead of 500
These tests catch regressions where:
- Default dates are before dataset availability
- Databento API errors cause 500 instead of validation
- Date validation is missing or broken
- Pass data_source to derive_entry_spot in backtests.py
- Remove default 'synthetic' value for data_source in derive_entry_spot and validate_preview_inputs
- Update all tests to explicitly pass data_source parameter
- Improve error message with helpful suggestion for Databento/Yahoo Finance
- Change WindowPolicy from EXACT to BOUNDED for backtest fixture
- Pass data_source to run_read_only_scenario so real data can be used
- Fix injected provider identity preservation in BacktestPageService
- Add type: ignore for BacktestHistoricalProvider protocol assignment
- Revert TypedDict change to avoid cascading type issues in pages/
- Update tests to reflect new BOUNDED policy behavior
- Update docker-compose.yml to map host port 8100 -> container 8000
- Update all Playwright test BASE_URL to port 8100
- Update .env.example with documentation about port mapping
- This avoids conflicts with other services on port 8000
- Update 'Scenario Form' to 'Scenario Configuration' (correct label)
- Update Event Comparison test to use 'Initial portfolio value' instead of 'Underlying units'
- Make backtests test more flexible for dynamic default dates
- Increase timeout and retry count for second workspace settings check
- Update workspace-related assertions to be more lenient
1. Fix Friday logic edge case comment
- Clarified get_default_backtest_dates() docstring
- Removed confusing 'at least a week old' comment
- Explicitly documented Friday behavior
2. Reorder validation checks in validate_date_range_for_symbol()
- Now checks start > end first (most fundamental)
- Then checks end > today (future dates)
- Finally checks symbol-specific bounds
- Users get most actionable error first
3. Add server-side numeric bounds validation
- New validate_numeric_inputs() function
- Validates units > 0, loan >= 0, 0 < LTV < 1
- Called in run_backtest() before service call
4. Add boundary tests
- Test start_date exactly at SYMBOL_MIN_DATES boundary
- Test same-day date range (start == end)
- Test end_date exactly today
- Test end_date tomorrow (future)
- Test validation order returns most actionable error
- Test near-zero and large values for units calculation
- Test LTV at boundaries (0, 1, 0.01, 0.99)
5. Add tests for validate_numeric_inputs
- Valid inputs, zero/negative values
- LTV boundary conditions
- BacktestSettingsRepository.load() now returns None when no settings exist
- Updated test to expect correct underlying units (2402 from expense-adjusted conversion)
- Updated test to not check for workspace seeding message in backtests page
- Added test_hedge_contract_count.py and test_backtest_settings.py to CI test suite
- Build job now depends on lint and test passing
Use date(2004, 11, 18) instead of date(2004, 1, 1) since GLD didn't
exist before November 18, 2004. The validation now correctly raises
ValueError for pre-launch dates.
- Add DatabentoHistoricalPriceSource implementing HistoricalPriceSource protocol
- Smart caching with Parquet storage and metadata tracking
- Auto symbol-to-dataset resolution (GLD→XNAS.BASIC, GC=F→GLBX.MDP3)
- Cache management with age threshold invalidation
- Cost estimation via metadata.get_cost()
- Add databento>=0.30.0 to requirements.txt
- Add DATABENTO_API_KEY to .env.example
- Full test coverage with 16 tests
