[erunion]

The import unit tests were stubbing globalThis.fetch with hand-rolled responses. Those stubs never exercised Node's native fetch, so redirect behavior (response.url after a hop) was faked by returning a different URL from the mock.

This switches those tests to nock (devDependency). test/mock-fetch.js registers one persistent interceptor per origin and still accepts the same route maps the tests already used:

• a string body is HTTP 200
• an Error fails the request
• finalUrl is a real 302, so fetch follows it and response.url is the landed URL
• unknown paths on an intercepted origin are 404s
• any other host is refused

npm test (oxlint, oxfmt, and the full Vitest suite) passes.

  

[greptile-apps]

Confidence Score: 5/5

[Low impact] The PR appears safe to merge; no actionable bugs were established.

_{Reviews (1) · Last reviewed commit: "test: replace global fetch overrides wit..." · Reviewed by Greptile}