18 golden fixture boards as real on-disk trees under Fixtures/ — ten valid/tolerated cases (rich board, interrupted create, non-UUID strays, stray files, tombstones, tie-breaks, unknown-key order, coercion, last-wins duplicates, board-level deleted) and eight fail-fast cases, each pinned to its exact error reason and path; the rich board's whole tree round-trips byte-identically. Pins two contract subtleties now recorded in the design: tombstone flags are not inherited (renderers walk ancestors) and last-wins resolves before order strictness. README gains the storage-foundation feature entry. 146 tests total. Claude-Session: https://claude.ai/code/session_018BjQRYBR6jQja3jCRi5S3A
Fixture boards
Golden fixture boards for the storage-contract test suite — real on-disk folder trees, not inline strings, so the same fixtures can later drive XCUITests via the --open-board launch hook.
Bundled into the unit-test target as a folder reference (see project.yml). Valid boards live under Valid/, fail-fast cases under Malformed/. Tests live in KanbanTests/FixtureBoardTests.swift.
Lane/card folder names are fixed literal lowercase-UUIDv4-shaped strings (never generated at test time), chosen so their lexicographic order matches the expected tie-break order — usually a leading digit (10000000-..., 20000000-..., …) so folder order reads the same as array-index order in the tests.
Valid/ — one board per tolerated/valid case
| Board | Case |
|---|---|
rich-board.kanban |
A full-breadth well-formed board: 2 lanes, 3 cards, bodies, styling (background/icon/iconColor/width), unknown + reserved frontmatter keys, attachments/ and comments/ with real content. Also the board every index.md in the tree is round-tripped against. |
interrupted-create.kanban |
The motivating skip-not-error case: a UUID-shaped lane folder and a UUID-shaped card folder, each with no index.md yet (folder created, write not yet landed). |
non-uuid-strays.kanban |
Non-UUID-shaped folders at both lane and card depth, with and without index.md — name shape gates candidacy before the file is ever read. |
stray-files.kanban |
Stray (non-directory) files at board, lane, and card level — never level candidates, never warned about. |
tombstones.kanban |
A tombstoned lane and a tombstoned card, both still on disk and still in the snapshot, flagged (isDeleted) rather than removed. Also proves a tombstoned lane doesn't recursively flag its own un-deleted children. |
duplicate-order-tie-break.kanban |
Three cards sharing one order in one lane, and two lanes sharing one order — both broken by folder name, ascending. |
unknown-key-order.kanban |
Unknown/reserved frontmatter keys interleaved with schema-owned ones at board, lane, and card level — document.unknownFields must preserve exactly the order they were written in. |
coercion.kanban |
Lenient-field coercion and fallback: wrong-type scalars that coerce (title: 2048, iconColor: 42, background: 12345, width: "3") versus ones with no sensible reading that fall back to the default (title: [a, b], background: {x: 1}, width: 1.5), plus a deleted with an unusable timestamp that still tombstones. |
duplicate-top-level-keys.kanban |
A top-level key written twice — at board, lane (the strict order field), and card level. Last occurrence wins; not a fail-fast case (settled, newer than the original card text). Round-tripped to prove the earlier occurrence survives on disk, invisible only to reads. |
board-level-deleted.kanban |
A board-level deleted: key — legal per the frontmatter table but meaningless; ignored + warned, rest of the board loads normally. |
Malformed/ — one board per fail-fast case
Each board is minimal: one broken thing.
| Board | Case |
|---|---|
unparseable-yaml.kanban |
An unterminated flow sequence in the board's frontmatter. |
missing-schema.kanban |
Board root index.md has no schema key. |
schema-newer-than-app.kanban |
Board root schema: 2, newer than BoardLoader.supportedSchema. |
missing-order-lane.kanban |
A UUID-shaped lane index.md with no order key. |
missing-order-card.kanban |
A UUID-shaped card index.md with no order key. |
explicit-null-order.kanban |
A lane's order: key present with no value — reads as missing, not malformed. |
non-numeric-order.kanban |
A card's order: banana — present but not a number. |
board-root-missing-index.kanban |
The board root folder itself has no index.md. |