@langchain/community/dist/caches/tests/ioredis.test.js

Third-party integrations for LangChain.js

import { test, expect, jest } from "@jest/globals";
import { insecureHash } from "@langchain/core/utils/hash";
import { RedisCache } from "../ioredis.js";
const sha1 = (str) => insecureHash(str);
test("RedisCache", async () => {
    const redis = {
        get: jest.fn(async (key) => {
            if (key === sha1("foo_bar_0")) {
                return JSON.stringify({ text: "baz" });
            }
            return null;
        }),
    };
    // eslint-disable-next-line @typescript-eslint/no-explicit-any
    const cache = new RedisCache(redis);
    expect(await cache.lookup("foo", "bar")).toEqual([{ text: "baz" }]);
});