README.md

# @mdwrk/testing **Shared test utilities** [](https://github.com/groupsum/markdown_workspace/blob/master/packages/shared/testing/README.md) [](https://www.npmjs.com/package/@mdwrk/testing) [](../../../package.json) [](../../../LICENSE)

This package provides lightweight browser and timing helpers reused by MdWrk package tests.

Maintenance Status

This is a legacy bridge package in groupsum/markdown_workspace.

• Active maintenance moved to groupsum/mdwrk.
• Install compatibility remains on the same npm package name: @mdwrk/testing.
• Repository source of truth: https://github.com/groupsum/mdwrk/tree/master/packages/shared/testing
• Bridge releases from this repo emit an install-time deprecation warning so downstream users can migrate without an immediate package rename.

Why

Use it when you need small shared test utilities without dragging app-specific test setup into library packages.

What

• In-memory storage helpers.
• A matchMedia stub for browser-like test environments.
• Timing helpers shared across package test suites.

Installation

Node.js 20.x through 22.x, matching the workspace engine contract in the root package manifest.

npm install -D @mdwrk/testing

Usage

import { createMemoryStorage, installMatchMediaStub } from "@mdwrk/testing";

const storage = createMemoryStorage({ draft: "# MdWrk" });
const restore = installMatchMediaStub(false);

restore();

Related

• Packages index - family and package navigation
• Root README - repo overview