packages/integrations/vercel/test/server-islands.test.js


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import assert from 'node:assert/strict';
import { before, describe, it } from 'node:test';
import { loadFixture } from './test-utils.js';

describe('Server Islands', () => {
	/** @type {import('./test-utils.js').Fixture} */
	let fixture;

	before(async () => {
		fixture = await loadFixture({
			root: './fixtures/server-islands/',
		});
		await fixture.build();
	});

	it('server islands route is in the config', async () => {
		const config = JSON.parse(await fixture.readFile('../.vercel/output/config.json'));
		let found = null;
		for (const route of config.routes) {
			if (route.src?.includes('_server-islands')) {
				found = route;
				break;
			}
		}
		assert.notEqual(found, null, 'Default server islands route included');
	});
});