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union-parity test: the canary check counts the payloads that carry it

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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Meta Vens 2026-10-11 03:51:37 +02:00
commit 82aab7d83e
1 changed files with 3 additions and 1 deletions
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4
packages/cultcache-ts/test/union-parity.test.ts
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@ -203,13 +203,14 @@ test("every outcome vector is listed and holds: refusals name the union and key,
assert.equal(entries.length, 9);
const document = surfaceDocument();
let refused = 0;
const carrying: string[] = [];
let readOnly = 0;
for (const { file, outcome: expected, unionName, key, detail } of entries) {
const payload = await read(file);
if (expected === "refused") {
refused += 1;
assert.ok(Buffer.from(payload).includes(CANARY) || detail === "arity", `${file} carries the canary`);
if (Buffer.from(payload).includes(CANARY)) carrying.push(file);
assert.throws(
() => surfaceCodec.decode(decode(payload)),
(error: Error) => {
@ -230,6 +231,7 @@ test("every outcome vector is listed and holds: refusals name the union and key,
}
}
assert.deepEqual([refused, readOnly], [5, 4]);
assert.deepEqual(carrying, ["unknown-arm-field.msgpack", "unknown-arm-list.msgpack", "unknown-arm-nested.msgpack"], "the canary is in the payloads whose arm is unknown");
});
test("a refusal lists the declared keys, so a key only the outer union declares is unknown to the inner", async () => {