- Use module-level EMPTY_TEMPLATE constant as default prop to prevent
useEffect infinite loop (new [] each render changed identity every cycle)
- Add htmlFor to date and dynamic field labels for proper a11y association
- Add role=alert to date error paragraph so tests can find it
- Update tests to pass a template with builtin fields (required by template-
driven component design) and mock experimentsApi
- Add --max-old-space-size=8192 to test scripts to prevent OOM on full suite
All 72 frontend tests now pass across 7 suites.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
New ExperimentCalendar component added as a third view mode (List / Group / Calendar)
on the Experiment Detail page.
Backend:
- GET /api/experiments/:id/calendar?field=<fieldIdOrBuiltinKey>
Returns { field, days: { "YYYY-MM-DD": count } } where count = number of
subjects with a non-null/non-empty value for the chosen field on that date.
Supports both builtin fields (vitals, treatment, notes, experiment_description)
and custom fields addressed by fieldId UUID.
Frontend:
- ExperimentCalendar component: navigable monthly grid, field selector
(defaults to first field with "weight" in label, else first active field),
blue badges showing subject count per day, click to open modal with all
subjects' data for that day.
- Integrated into ExperimentDetail as displayMode "calendar", persisted
in localStorage alongside the existing list/group modes.
- experimentsApi.getCalendar() added to API client.
Tests:
- backend/tests/calendar.test.js: 8 unit tests (404, empty days, builtin
count, custom field count, whitespace ignored, multi-month, field echo,
missing param).
- frontend/tests/ExperimentCalendar.test.jsx: 13 RTL tests covering
rendering, default field selection, count badges, month navigation,
field-change re-fetch, day click modal, and multi-subject display.
All 47 backend + 13 calendar frontend tests passing.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Experiments DB Dev