testland/msw-handlers
Authors Mock Service Worker (MSW) request handlers for both browser and Node.js test environments using the `http.get` / `http.post` / `HttpResponse.json` API, wires them via `setupWorker` (browser) or `setupServer` (Node), and manages the test lifecycle (`server.listen` / `resetHandlers` / `close`). Use when the project uses JavaScript / TypeScript and needs to mock fetch / XHR at the network layer for both Vitest / Jest unit tests and Cypress / Playwright integration tests.
92
Quality
92%
Does it follow best practices?
Impact
—
Average score across 10 eval scenarios
Securityby
Passed
No findings from the security scan
Evaluation results
Failed
A new test at the bottom of the file fails for no reason
Failed
An API change means editing the same fake response in five files
Failed
CI is making real calls to our API, and one test is lying
Failed
Green tests, 401s in production
Failed
Order tests disappeared during the upgrade
Failed
Our mocks only work inside a browser
Failed
Real users are seeing "John Doe"
Failed
The failure branches of our quote client have never run
Failed
Unit tests were green while the page showed "Plan: undefined"
Failed
We cannot test the add-to-cart flow
- Agent
- Claude Code
- Model
- Claude Sonnet 4.6