Files
stack/apps/web/src/spa/pages/chat-error-boundary.spec.tsx
T

88 lines
2.6 KiB
TypeScript

import { act } from 'react';
import { createRoot, type Root } from 'react-dom/client';
import { createMemoryRouter, RouterProvider, type RouteObject } from 'react-router-dom';
import { afterAll, afterEach, beforeAll, describe, expect, it, vi } from 'vitest';
const { useSessionMock } = vi.hoisted(() => ({
useSessionMock: vi.fn(),
}));
vi.mock('@/lib/auth-client', () => ({
useSession: useSessionMock,
}));
import { routes } from '@/routes';
beforeAll(() => {
Object.defineProperty(globalThis, 'IS_REACT_ACT_ENVIRONMENT', {
configurable: true,
value: true,
});
});
afterAll(() => {
Reflect.deleteProperty(globalThis, 'IS_REACT_ACT_ENVIRONMENT');
});
function Boom(): never {
throw new Error('render blew up');
}
/** Recursively clones the real exported route table, replacing only the
* `/chat` route's `element` with `<Boom />` — every other route (including
* the real `AuthGuard` nesting and the real `/chat` `errorElement`) is left
* exactly as exported. This is what makes the test fail if a future change
* removes the real route's `errorElement`, unlike a hand-built independent
* route tree that could drift from production undetected. */
function replaceChatElementWithBoom(nodes: RouteObject[]): RouteObject[] {
return nodes.map((node) => {
const cloned: RouteObject = { ...node };
if (cloned.path === '/chat') {
cloned.element = <Boom />;
}
if (cloned.children) {
cloned.children = replaceChatElementWithBoom(cloned.children);
}
return cloned;
});
}
let root: Root | null;
let container: HTMLElement;
afterEach(async () => {
await act(async () => {
root?.unmount();
});
document.body.replaceChildren();
root = null;
useSessionMock.mockReset();
});
describe('ChatRouteErrorBoundary', () => {
it('renders a recoverable, non-blank fallback when the /chat route element throws during render', async () => {
useSessionMock.mockReturnValue({ data: { user: { id: 'user-1' } }, isPending: false });
const routeObjects = replaceChatElementWithBoom(routes);
const router = createMemoryRouter(routeObjects, { initialEntries: ['/chat'] });
container = document.createElement('div');
document.body.append(container);
root = createRoot(container);
const consoleErrorSpy = vi.spyOn(console, 'error').mockImplementation(() => {});
try {
await act(async () => {
root?.render(<RouterProvider router={router} />);
});
expect(consoleErrorSpy).toHaveBeenCalled();
} finally {
consoleErrorSpy.mockRestore();
}
expect(container.textContent).not.toBe('');
expect(container.querySelector('[role="alert"]')).toBeTruthy();
});
});