Right-hand side of 'instanceof' is not an object with jsdom #884
Description
Thanks for fetch-mock!
I've been trying to upgrade fetch-mock-jest -> @fetch-mock/jest, but had some issues with our tests that use jsdom, where Request/Response etc aren't defined on globalThis. I suspect it's the same issue as #864
I created an example repo at https://github.com/jdelStrother/fetch-mock-jest
$ npm test
> [email protected] test
> jest --all
PASS ./mock-old.test.js
FAIL ./mock.test.js
● can fetch stuff
TypeError: Right-hand side of 'instanceof' is not an object
8 |
9 | it("can fetch stuff", async () => {
> 10 | let r = await fetch("http://example.com");
| ^
11 | expect(r.status).toEqual(418);
12 | });
13 |
at FetchMockJest._callee$ (node_modules/fetch-mock/dist/esm/FetchMock.js:56:25)
at fetch (mock.test.js:10:17)
at call (mock.test.js:2:1)
at Generator.tryCatch (mock.test.js:2:1)
at Generator._invoke [as next] (mock.test.js:2:1)
at asyncGeneratorStep (mock.test.js:2:1)
at asyncGeneratorStep (mock.test.js:2:1)
at _next (mock.test.js:2:1)
at Object.<anonymous> (mock.test.js:2:1)
Test Suites: 1 failed, 1 passed, 2 total
Tests: 1 failed, 1 passed, 2 total
Snapshots: 0 total
Time: 1.178 s
Ran all test suites.The first error comes from
, but if I naively bypass that check there seem to be a rabbithole of further errors (Response is not defined, ReadableStream is not defined ...)
I'm not sure if jsdom is something you want to support, but thought it was worth highlighting as something that used to work under fetch-mock-jest