import { describe, expect, test } from "bun:test";
import { createCacheStore } from "@/external/storage/cache/createCacheStore.js";

const fakeKv = {
	get: async () => null,
	put: async () => undefined,
	delete: async () => undefined,
};

describe("createCacheStore", () => {
	test("uses KV when a KV namespace is provided", () => {
		const store = createCacheStore({
			kv: fakeKv as unknown as KVNamespace,
		});

		expect(store.metadata.backend).toBe("kv");
		expect(store.metadata.consistencyMode).toBe("eventual");
	});

	test("uses memory when KV is absent", () => {
		const store = createCacheStore({});

		expect(store.metadata.backend).toBe("memory");
		expect(store.metadata.consistencyMode).toBe("strong");
	});
});