v0.14.4 shipped: 52 tests, ROADMAP audit, CI fix.

Why this cycle

v0.14.4 was the “Story coverage” cycle. The headline work was a 52-test suite for the diagnostic-story generator (src-tauri/src/story.rs) and the anonymiser (src-tauri/src/anonymize.rs). Before this cycle, both modules had zero test coverage. After, they have 52 tests and a deterministic coverage of the public surface.

The motivation: the story generator is the user-facing surface for sharing diagnostic data. People export anonymised snapshots to share with friends, forums, and indie shops. Without test coverage, every change to the story format was a chance to break the user-facing contract.

The 52 tests

The 52 tests break down as 32 for story.rs and 20 for anonymize.rs.

story.rs (32 tests)

• Severity bucketing + ordering — 4 tests. Verifies the severity buckets sort predictably and the priority ordering is stable.
• parse_cost_range — 6 tests. Handling single values, tilde, hyphen, en-dash, whitespace, empty, and garbage. The cost range format is the source of the most user-visible output; getting it right matters.
• format_vehicle — 4 tests. Across empty, VIN-only, mileage-only, and decoded inputs.
• build_context — 3 tests. Freeze-frame string assembly.
• The full generate() pipeline — 8 tests. Against the live community knowledge base; cost range sum, cost-max invariant, DTC code case-insensitive lookup, summary text counts, title format.
• Property tests — 7 tests. Severity bucket assignment, cost-max invariant across random inputs, DID decoder stability.

anonymize.rs (20 tests)

• hash_vin properties — 4 tests. 16 hex chars, stable across calls, distinct across inputs, case-sensitive (pinned as an invariant test).
• The full anonymize() pipeline — 10 tests. VIN never leaks, fingerprint substitution, missing VIN to unknown fingerprint, engine_family preserved, modules / DTCs / freeze frames preserved, mileage stripped, empty modules, fault_count None to 0, live_data always empty.
• export_json — 6 tests. No VIN / mileage leak, pretty-printed, serde round-trip.

Test count went from 149 to 201 in cargo test --lib --offline.

The audit

The v0.14.4 cycle plan also included a CLAUDE.md refresh. Four stale “NOT YET IMPLEMENTED” / “migration in progress” claims were wrong against main. The PR refreshed them to “INVARIANT — enforced” with citations:

• Async commands: migration complete (24 sync #[tauri::command] are in-memory / local-fs helpers gated by tests/async_commands.rs::SYNC_ALLOWLIST).
• Tester Present keep-alive: shipped in src-tauri/src/keepalive.rs (3000 ms interval, [0x3E, 0x00] frame).
• ISO-TP multi-frame: shipped in src-tauri/src/transport/isotp.rs (430 LOC, FF/CF/FC state machine).
• VIN reads: protocol::read_vin shipped at src-tauri/src/protocol/mod.rs:296; all callers in commands.rs route through it.
• ENET/DoIP UDP discovery remains honestly not implemented.

The ROADMAP.md v0.3.0 historical audit was a separate PR. Six items in the v0.3.0 “Real Car” section were marked “Ready” but had actually shipped. The PR moved them to a new “Done — historical (shipped)” table with PR references and code locations.

The CI fix

The CI & Autonomous Merge workflow’s test-rust job ran cargo test on a bare ubuntu-latest runner that lacked Tauri’s Linux system libraries (glib, gtk, webkit2gtk-4.1). The build failed in 20 s on every PR.

The fix: mirror the apt-get install step from test.yml::rust into ci.yml::test-rust. 20 seconds to a green build, every PR since.

What we didn’t ship

• No transport/** changes. The K+DCAN / ENET/DoIP paths were not touched.
• No protocol/** changes.
• No frontend changes (JS, HTML, CSS).
• No community data changes.
• No git tag v0.14.4 in this cycle — that is the Tier C release cut, separate from this Tier A merge.

What’s next

The v0.14.5 cycle is up next. Candidate slices include the ENET/DoIP UDP broadcast discovery (the long-standing Tier B item), more DTC catalog coverage (P2002/P2003 for DPF, P0401/P0402 for EGR), and the public /api/release-info endpoint.

See the v0.14.5 cycle page for the candidate list.