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cultcache-ts: tests pin the single-put judge's alias and key-pair order (kills the code-point and NFD mutants)
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Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
This commit is contained in:
Libby 2026-11-11 13:45:12 +00:00
commit 3c99485f3c
1 changed files with 22 additions and 0 deletions
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22
packages/cultcache-ts/test/unique-index.test.ts
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@ -550,3 +550,25 @@ test("registerIndex of a second unique alias judges it, naming the two smallest
assert.equal(cache.getKeyByIndex(document, "a", "1"), "z", "the alias already installed is intact");
assert.equal(cache.getKeyByIndex(document, "b", "s"), undefined);
});
// ---- the single-put judge's two orders, which no pair-order vector row reaches from TS (a vector row's second record
// arrives in a batch that TS cannot perform): aliases by UTF-16 code unit, then the key pair by UTF-16 code unit ----
test("a put colliding on two aliases names the one least by UTF-16 code unit, not by code point", async () => {
// U+10400 is the surrogate pair D801 DC00, so it sorts before U+FF21 by code unit and after it by code point.
const document = pair({ indexes: { "Ａ": "a", "\u{10400}": "b" } });
const cache = memory(document);
await cache.put(document, "h1", { a: "s1", b: "t1" });
await cache.put(document, "h2", { a: "s2", b: "t2" });
await assert.rejects(cache.put(document, "p", { a: "s1", b: "t2" }), { message: refusal("h2", "p", "tests.pair", "\u{10400}") });
assert.equal(cache.get(document, "p"), undefined);
});
test("a put names its key pair by UTF-16 code unit, not by normalised form", async () => {
// "e" U+0302 is the NFD form of U+00EA: equal when normalised, and less by code unit.
const document = item("item");
const cache = memory(document);
await cache.put(document, "ê", { sku: "v" });
await assert.rejects(cache.put(document, "ê", { sku: "v" }), { message: refusal("ê", "ê", "tests.item", "sku") });
assert.equal(cache.get(document, "ê"), undefined);
});