import { describe, expect, test } from "bun:test";
import { deriveKey, sha256 } from "../../src/kdbx/crypto";

describe("kdbx crypto helpers", () => {
	test("sha256 hashes data deterministically", () => {
		const digest = sha256("abc");
		expect(Array.from(digest)).toHaveLength(32);
	});

	test("deriveKey rejects invalid rounds", () => {
		expect(() => deriveKey("secret", new Uint8Array([1, 2, 3]), 0)).toThrow("Invalid key derivation rounds");
	});

	test("deriveKey produces a 32-byte key", () => {
		const key = deriveKey("secret", new Uint8Array([1, 2, 3]), 1000);
		expect(Array.from(key)).toHaveLength(32);
	});
});