Add ReadableStream to Jest integration.

[kenjim83]

From mswjs/msw#1934

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[kettanaito]

node:util doesn't export ReadableStream, node:streams/web does.

[nathanhannig]

node:stream/web

[kettanaito]

Hi, @kenjim83. Reaching back to you to provide additional context on ReadableStream in Jest.

As I have since learned, the JSDOM environment in Jest doesn't rely on the jest-environment-node (which is a rather big oversight), and instead uses core-js to polyfill already existing Node.js globals, like ReadableStream. The core-js module just throws whenever it tries to call structuredClone() on a ReadableStream instance because it's not implemented there.

TL;DR There's no way to get ReadableStream to work in Jest unless Jest (or core-js) itself addresses the issue. No polyfills on your end will be respected by Jest (one has to polyfill structuredClone() and Node.js doesn't expose its implementation, it's an internal C++ binding).