The four findings from the review of the 3.15-3.18 batch:
- The event step's `_eventFieldsError` flag is cleared at the start of each
collect: fixing malformed JSON used to leave the save refused until the
editor was closed and reopened. Regression test covers invalid -> fixed.
- The script store keeps an entry that no longer validates on load (a
tightened engine rule or a hand edit): it is served, fails at run start with
the validator's message and can be fixed in the editor, instead of being
dropped from memory and erased by the next save. Mutation paths still
refuse it. (The presets store already had this behaviour.)
- Writebacks are serialized per script (`_testWriteChains`): two quick saves
of an unsaved draft no longer create two server-side scripts - the window
could be minutes while a RAM operation holds the card lock. Regression
test asserts one create + one update.
- Deleting a script cancels its pending debounced save and marks it deleted,
so a queued writeback never resurrects it; a create already in flight is
undone with a delete. Regression test covers the pending-save case.
- The event vectors moved to a shared fixture
(frontend/tests/event_vectors.json) asserted by BOTH suites - a one-sided
builder change now fails the other suite instead of drifting silently.
Tests: 816 frontend + 716 Python; sw cache simple-v383.
The scripts lived in the browser's localStorage although only the local
server can run them. The new test_scripts.py store
(~/.pysim-simple-server/test_scripts.json, --test-scripts PATH) sits next to
the card presets: stable uuids and timestamps, atomic writes, and every
mutation is validated with the runner's own engine (the submitted shape is
kept - the normaliser's output is not re-normalisable: it fills defaults
like an 'any' PoR check that the check normaliser then rejects), so a stored
script cannot fail at run start for a validation reason. Import accepts the
old localStorage export as-is (export/import remains the migration path; the
PWA import also takes an exported array).
- /api/test/scripts (GET card-free: path/count + scripts), POST create,
/update, /delete and /import serve the store; the endpoints answer 503
without a store and 500 on a write failure, like the preset endpoints.
- /api/test/run takes a stored script_id (resolved when no inline script is
sent); the PWA sends the edited copy inline plus the id for the report,
and the run snapshot carries script_id.
- The PWA's Test script pill loads from the store, writes through on edits
(debounced name, immediate step/new/copy/delete), reports load/save/delete
failures inline, and exports the portable {name, steps} shape.
Tests: 808 frontend + 701 Python; sw cache simple-v379.
catarrh