import { describe, it, expect } from 'vitest';

// Browser-mode tests must run with SvelteKit's hover-prefetch disabled.
// Hover-prefetch fires real `fetch` requests for the target route's loader
// chunks; those go through the same Playwright route handler that serves
// mocked modules. Even after `cleanup()` tears down the iframe, an in-flight
// prefetch can still hit the handler — and if the worker's birpc channel has
// closed by then, the handler raises an unhandled rejection. ADR-012 / #553.
//
// This test enforces that the test-setup file ran and switched preload-data
// off on `document.body` before any spec started rendering.
describe('browser test setup', () => {
	it('disables SvelteKit loader-data prefetch on document.body', () => {
		expect(document.body.dataset.sveltekitPreloadData).toBe('off');
	});

	it('disables SvelteKit route-code prefetch on document.body', () => {
		expect(document.body.dataset.sveltekitPreloadCode).toBe('off');
	});
});