redis-eval-mock

library1.0.1jsnpmunverified

A mock of Redis EVAL functionality for testing Lua scripts in Node.js. Version 1.0.1, last updated in 2019, with no active development. It integrates with existing redis mocks like redis-mock and provides mock implementations of cjson and cmsgpack libraries. It allows testing Lua scripts without a real Redis server, but note that evalsha always throws NOSCRIPT as there is no script cache. The package ships TypeScript types and has a peer dependency on @types/redis. It is a niche testing utility, not updated recently.

testing

npm install redis-eval-mock

github ↗package ↗homepage ↗

INSTALL

IMPORT

SIG · REDIS-EVAL-MOCK

redis-eval-mock

testingjavascriptv1.0.1

harness data pending

Install & Compatibility

Where this runs

No compatibility data collected yet for this library.

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

default

✓ import mockEval from 'redis-eval-mock'

✗ const mockEval = require('redis-eval-mock')

The package is ESM-only with a default export. Using require may cause issues if the package does not export a CommonJS module.

mockEval

✓ import mockEval from 'redis-eval-mock'

✗ import { mockEval } from 'redis-eval-mock'

The default export is a function; there is no named export 'mockEval'.

Function

✓ import type { Function } from ''; // Not exported

✗ No type imports available from this package

The package does not export any types; you can use the types from @types/redis for the return value.

Creates a mocked Redis client with eval support for testing Lua scripts in Node.js.

import * as redis from 'redis'; import * as mock from 'redis-mock'; import mockEval from 'redis-eval-mock'; // Set up mock Redis client with eval mocking const client = mockEval(mock.createClient()); // Now you can use eval as if it were real Redis client.eval('return 1', 0, (err, result) => { if (err) throw err; console.log(result); // 1 }); // evalsha will always throw NOSCRIPT client.evalsha('some-sha', 0, (err, result) => { console.log(err.message); // NOSCRIPT No matching script });

Debug

Known issues

gotchaevalsha always throws NOSCRIPT error because the mock does not implement a script cache.

fix

If you need to test evalsha, you will need to extend the mock or use a different library.

affects: >=1.0.0

deprecatedPackage has not been updated since 2019 and may not work with newer versions of Node.js or TypeScript.

fix

Consider testing with a real Redis instance or using alternatives like ioredis-mock.

affects: >=1.0.0

gotchaThe package relies on @types/redis as a peer dependency; without it, TypeScript compilation may fail.

fix

Install @types/redis as a dev dependency.

affects: >=1.0.0

breakingIn version 1.0.0, the package switched from CommonJS to ESM-only exports, breaking require() usage.

fix

Use import syntax instead of require().

affects: >=1.0.0

Errors

Common errors & fixes

TypeError: mockEval is not a function

Using named import { mockEval } instead of default import.

fix

Use `import mockEval from 'redis-eval-mock'` (without curly braces).

Cannot find module '@types/redis'

Missing peer dependency @types/redis.

fix

Run `npm install --save-dev @types/redis`.

Error: NOSCRIPT No matching script

The mock does not implement script caching, so evalsha always fails.

fix

If you need to test evalsha, consider using a different mocking strategy or a real Redis server.

Upgrade

Version history

1.0.1latest on npm

Audit

Dependencies

@types/redisrequiredpeer dependency for TypeScript type definitions

Agent activity

8 hits · last 30 days

node

Resources

githubhttps://github.com/plsmphnx/redis-eval-mock ↗

packageredis-eval-mock ↗

homepagehttps://github.com/plsmphnx/redis-eval-mock#readme ↗