import assert from 'node:assert/strict';
import { afterEach, beforeEach, describe, it } from 'node:test';
import { fetchWithRedirects } from '../dist/fetch.js';
let originalFetch: typeof globalThis.fetch;
beforeEach(() => {
originalFetch = globalThis.fetch;
});
afterEach(() => {
globalThis.fetch = originalFetch;
});
describe('fetchWithRedirects', () => {
it('follows validated redirect targets', async () => {
let callCount = 0;
const responses: [Response, Response] = [
new Response(null, {
status: 302,
headers: { location: '/next' },
}),
new Response('ok', { status: 200 }),
];
const fetchMock = async () => responses[callCount++];
globalThis.fetch = fetchMock as typeof fetch;
const result = await fetchWithRedirects('https://example.com/start', {}, 5);
assert.equal(result.url, 'https://example.com/next');
assert.equal(callCount, 2);
});
it('fails when redirect target validation rejects', async () => {
const fetchMock = async () =>
new Response(null, {
status: 302,
headers: { location: 'http://blocked.local' },
});
globalThis.fetch = fetchMock as typeof fetch;
await assert.rejects(
fetchWithRedirects('https://example.com/start', {}, 5)
);
});
});
