Courses / Frontend Testing
11. msw basics (service worker mocking)
Using Mock Service Worker for realistic network mocking in unit and component tests.
JavaScript
msw basics (service worker mocking)
A lightweight tool that intercepts network requests in the browser or Node and returns mocked responses for tests and development.
"I want my UI tests to run without hitting flaky real APIs."
Mock Service Worker (msw) registers a service worker (or uses a Node request handler) that intercepts fetch/XHR and returns developer-defined mocked responses so code behaves like it's talking to a real server.
"I want my UI tests to run without hitting flaky real APIs."
Mock Service Worker (msw) registers a service worker (or uses a Node request handler) that intercepts fetch/XHR and returns developer-defined mocked responses so code behaves like it's talking to a real server.