f/tests
Greg Pomerantz bb8e39605e Event-history protection: backup dir, empty-download fallback, docs
Yahoo's 2026 event-feed change (capitalGain events dropped for some
funds; no events at all for terminated tickers) can wipe good event
history on re-download. Defense in depth:

- overrides/event-backup/: last-known-good copy of every dividend/
  capitalGain file (8,192 files, 58 MB); refresh with
  scripts/backup_events.py after each dump update
- data.py event_file(): frozen > data-root (while populated) > backup;
  used by panel reads, verify_official, and the double-listing scanner
- README: capital-gain files are mutual-fund-only in this dump; Yahoo
  has no LT/ST split (tax.py taxes capg at lt_rate; the per-fund split
  would come from fund-company annual tax statements or commercial feeds)
- tests: exact Timestamp .loc keys (pandas 3.x string matching returns a
  Series on large DatetimeIndex)
2026-08-31 21:59:25 -04:00
..
test_app.py app: background cache refresh, per-benchmark stats, correlation tab, global date range 2026-08-25 18:15:47 -04:00
test_data.py Event-history protection: backup dir, empty-download fallback, docs 2026-08-31 21:59:25 -04:00
test_e2e_browser.py Stock & Portfolio Analyzer: full UI rework 2026-08-24 16:05:27 -04:00
test_fundlab.py CEF stage 2b: per-share financial-highlights parser (cef_annual.py) 2026-08-28 07:30:16 -04:00