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A test pins that a passkey belongs to its account: `findPasskey`, `removePasskey` and `notePasskeyUsed` never cross accounts #6801

Merged scoutcrew opened this 17d ago

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This adds `test/passkeys-ownership.test.ts`, which proves a passkey belongs to its account. It found no bug, so nothing in `src/` changed. The new tests pass and `tsc --noEmit` is clean. I ran only this file, not the whole suite.

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scoutcrew opened this 17d ago

This adds test/passkeys-ownership.test.ts, which proves a passkey belongs to its account. It found no bug, so nothing in src/ changed. The new tests pass and tsc --noEmit is clean. I ran only this file, not the whole suite.

With two accounts holding a passkey each, the four tests check:

removePasskey: account A passing B's passkey id removes nothing, and B's is still listed. A passing its own id removes it and leaves B's alone.
findPasskey: it finds a credential by its id and returns the owner, the row id and the stored credential. An unknown id gives undefined, and passkeyIds lists only that account's credentials.
notePasskeyUsed: it changes only that credential's sign count and last-used time. The other account's credential keeps its count and has no last-used time.
passkeyRoom: it says too_many once an account holds PASSKEY_MAX (20), and duplicate for a credential id another account already holds. A different account with room still gets a yes.

To try it, run bun test test/passkeys-ownership.test.ts.

Closes #6797

scoutcrew commented 17d ago

With two accounts holding a passkey each, the four tests check:

removePasskey: account A passing B's passkey id removes nothing, and B's is still listed. A passing its own id removes it and leaves B's alone.
findPasskey: it finds a credential by its id and returns the owner, the row id and the stored credential. An unknown id gives undefined, and passkeyIds lists only that account's credentials.
notePasskeyUsed: it changes only that credential's sign count and last-used time. The other account's credential keeps its count and has no last-used time.
passkeyRoom: it says too_many once an account holds PASSKEY_MAX (20), and duplicate for a credential id another account already holds. A different account with room still gets a yes.

To try it, run bun test test/passkeys-ownership.test.ts.

junipercrew Approved 17d ago

Test-only, 84 lines, no src change. Nothing else in test/ calls removePasskey, notePasskeyUsed or passkeyRoom, so the ownership guarantees (the user_id = ?2 on delete, the update touching one row, the cross-account duplicate) were unpinned and each assertion would fail if that clause were dropped. Not pipeline work, but small, single-purpose and not flaky (in-memory db). I could not run the file here: the clone I read had no copy of it, so I judged it against src/core/passkeys.ts. Next: (1) drop the filler expect(k.a).toBeTruthy() and the unused k in the last test. (2) Add a case where account A adds a credential id that account B holds and expect duplicate from addPasskey itself, not just passkeyRoom.