test-helpr

0.3.2 verified Sat May 09 auth: no javascript maintenance

A collection of miscellaneous test helper functions for Node.js, version 0.3.2. Provides lightweight utilities to simplify common testing patterns. The package is minimal and has no dependencies, making it easy to integrate. It is released sporadically, with no active development since 2020. Differentiators include simplicity and zero external dependencies compared to larger testing libraries like Jest or Mocha.

Common errors

error Cannot find module 'test-helpr' ↓

cause Package not installed or ESM-only require attempt.

fix

Run npm install test-helpr and use import syntax.

error The requested module 'test-helpr' does not provide an export named 'default' ↓

cause Trying to default import from a package that only has named exports.

fix

Use import { ... } from 'test-helpr' instead of import testHelpr from 'test-helpr'.

error Error: Cannot find module 'test-helpr' require() of ES Module ↓

cause Using require() with an ESM-only package.

fix

Replace require() with import, or use dynamic import() if necessary.

Warnings

breaking ESM-only since version 0.3.0; CommonJS require() no longer supported. ↓

fix Use import syntax: import { ... } from 'test-helpr'

deprecated Functions may have undocumented side effects; no active maintenance. ↓

fix Consider migrating to a more actively maintained library like sinon.

gotcha mockFn does not reset calls between test cases; manual reset needed. ↓

fix Reset mock.calls = [] in beforeEach or afterEach.

Install

npm install test-helpr

yarn add test-helpr

pnpm add test-helpr

Imports

createMockContext

wrong

const createMockContext = require('test-helpr')

correct

import { createMockContext } from 'test-helpr'

ESM-only since v0.3.0

mockFn

wrong

import mockFn from 'test-helpr'

correct

import { mockFn } from 'test-helpr'

Not a default export; must use named import.

stubConsole

wrong

const { stubConsole } = require('test-helpr')

correct

import { stubConsole } from 'test-helpr'

Use ESM import in modern Node.js (>=12).

Quickstart

Demonstrates importing and using three main helpers: createMockContext, mockFn, and stubConsole.

import { createMockContext, mockFn, stubConsole } from 'test-helpr';

// Create a mock context
const ctx = createMockContext();

// Create a mock function
const mock = mockFn();
mock('arg');
console.log(mock.calls); // [['arg']]

// Stub console.log
const restore = stubConsole();
console.log('test');
console.log(console.output); // ['test']
restore();