import assert from "node:assert";

import { compareInts, compareStrings } from "../lib/compare/primitives.js";
import { compareDicts } from "../lib/compare/structures.js";
import { emptyDict, set } from "../lib/structures/dict.js";

const cmpFn = compareDicts(compareStrings)(compareInts);

const e = emptyDict(compareStrings);
const f = set(e)("x")(1n);
const g = set(f)("y")(2n);

assert.equal(
  cmpFn(e)(e),
  0,
  "empty dict should be equal to itself"
);

assert.equal(
  cmpFn(g)(g),
  0,
  "dict should always equal itself"
);

assert.equal(
  cmpFn(f)(g),
  -1,
  "f is smaller"
);