reactjs - Jest-testen `expect().toThrowError()` passerer, men logger fortsatt en ufanget feil til konsollen
Jeg bruker Jest og react-testing-library for å teste en "modal"-komponent i en "portal" som må monteres til en DOM-node. Denne DOM-noden er konfigurerbar, men standardverdien er body. For å få riktig testdekning sender jeg også en dårlig verdi, som skal føre til en feil. Jeg prøver å bekrefte at dette skjer og fange feilen ved å bruke expect().toThrowError()-API-et, og dette fungerer helt fint. Likevel ser jeg fortsatt en ufanget feil i loggene. Jeg tror dette kanskje skyldes at React-biblioteket skriver den ut før det kaster den samme unntaket igjen, men det betyr vel at jeg ikke kan forhindre det, antar jeg.
Jeg kunne bare returnere en fallback-feilmelding i brukergrensesnittet, men jeg føler at dette ikke er slik det burde fungere.
Noen forslag til hvordan man kan fikse dette, eller til og med et forslag om å bare ta en helt annen tilnærming?
// modal.js
import React, { useEffect } from 'react';
import ReactDOM from 'react-dom';
export interface ModalProps {
children: React.ReactNode;
DOMNodeSelector?: string;
}
export const Modal: React.FC<ModalProps> = ({
children,
DOMNodeSelector = 'body',
}) => {
const wrapper = document.createElement('div');
wrapper.classList.add('modal-wrapper');
// Mount and unmount the modal in the portal
useEffect(() => {
const portal = document.querySelector(DOMNodeSelector);
if (!portal)
throw new Error(`Querying "${DOMNodeSelector}" did not yield a DOM node`);
portal.appendChild(wrapper);
return () => {
portal.removeChild(wrapper);
};
}, []);
return ReactDOM.createPortal(
<div className="modal">{children}</div>,
wrapper,
);
};
//modal.test.js
import React from 'react';
import { render } from '@testing-library/react';
import {Modal} from './modal';
describe('<Modal>', () => {
it(`throws an Error when passed a bad dom node selector`, () => {
expect(() => {
render(
<Modal DOMNodeSelector=".badselector">Hello World!</Modal>,
);
}).toThrowError(/did not yield a dom node/i);
});
});
export default Modal;
console.error
Error: Uncaught [Error: Querying ".badselector" did not yield a DOM node]
at reportException (/workspaces/project/node_modules/.pnpm/[email /node_modules/jsdom/lib/jsdom/living/helpers/runtime-script-errors.js:62:24)
at innerInvokeEventListeners (/workspaces/project/node_modules/.pnpm/[email /node_modules/jsdom/lib/jsdom/living/events/EventTarget-impl.js:333:9)
at invokeEventListeners (/workspaces/project/node_modules/.pnpm/[email /node_modules/jsdom/lib/jsdom/living/events/EventTarget-impl.js:274:3)
at HTMLUnknownElementImpl._dispatch (/workspaces/project/node_modules/.pnpm/[email /node_modules/jsdom/lib/jsdom/living/events/EventTarget-impl.js:221:9)
at HTMLUnknownElementImpl.dispatchEvent (/workspaces/project/node_modules/.pnpm/[email /node_modules/jsdom/lib/jsdom/living/events/EventTarget-impl.js:94:17)
at HTMLUnknownElement.dispatchEvent (/workspaces/project/node_modules/.pnpm/[email /node_modules/jsdom/lib/jsdom/living/generated/EventTarget.js:231:34)
at Object.invokeGuardedCallbackDev (/workspaces/project/node_modules/.pnpm/[email [email /node_modules/react-dom/cjs/react-dom.development.js:3994:16)
at invokeGuardedCallback (/workspaces/project/node_modules/.pnpm/[email [email /node_modules/react-dom/cjs/react-dom.development.js:4056:31)
at flushPassiveEffectsImpl (/workspaces/project/node_modules/.pnpm/[email [email /node_modules/react-dom/cjs/react-dom.development.js:23574:9)
at unstable_runWithPriority (/workspaces/project/node_modules/.pnpm/[email /node_modules/scheduler/cjs/scheduler.development.js:646:12) Error: Querying ".badselector" did not yield a DOM node
at /workspaces/project/src/modal.tsx:20:13
at invokePassiveEffectCreate (/workspaces/project/node_modules/.pnpm/[email [email /node_modules/react-dom/cjs/react-dom.development.js:23487:20)
at HTMLUnknownElement.callCallback (/workspaces/project/node_modules/.pnpm/[email [email /node_modules/react-dom/cjs/react-dom.development.js:3945:14)
at HTMLUnknownElement.callTheUserObjectsOperation (/workspaces/project/node_modules/.pnpm/[email /node_modules/jsdom/lib/jsdom/living/generated/EventListener.js:26:30)
at innerInvokeEventListeners (/workspaces/project/node_modules/.pnpm/[email /node_modules/jsdom/lib/jsdom/living/events/EventTarget-impl.js:318:25)
at invokeEventListeners (/workspaces/project/node_modules/.pnpm/[email /node_modules/jsdom/lib/jsdom/living/events/EventTarget-impl.js:274:3)
at HTMLUnknownElementImpl._dispatch (/workspaces/project/node_modules/.pnpm/[email /node_modules/jsdom/lib/jsdom/living/events/EventTarget-impl.js:221:9)
at HTMLUnknownElementImpl.dispatchEvent (/workspaces/project/node_modules/.pnpm/[email /node_modules/jsdom/lib/jsdom/living/events/EventTarget-impl.js:94:17)
at HTMLUnknownElement.dispatchEvent (/workspaces/project/node_modules/.pnpm/[email /node_modules/jsdom/lib/jsdom/living/generated/EventTarget.js:231:34)
at Object.invokeGuardedCallbackDev (/workspaces/project/node_modules/.pnpm/[email [email /node_modules/react-dom/cjs/react-dom.development.js:3994:16)
at invokeGuardedCallback (/workspaces/project/node_modules/.pnpm/[email [email /node_modules/react-dom/cjs/react-dom.development.js:4056:31)
at flushPassiveEffectsImpl (/workspaces/project/node_modules/.pnpm/[email [email /node_modules/react-dom/cjs/react-dom.development.js:23574:9)
at unstable_runWithPriority (/workspaces/project/node_modules/.pnpm/[email /node_modules/scheduler/cjs/scheduler.development.js:646:12)
at runWithPriority$1 (/workspaces/project/node_modules/.pnpm/[email [email /node_modules/react-dom/cjs/react-dom.development.js:11276:10)
at flushPassiveEffects (/workspaces/project/node_modules/.pnpm/[email [email /node_modules/react-dom/cjs/react-dom.development.js:23447:14)
at Object.<anonymous>.flushWork (/workspaces/project/node_modules/.pnpm/[email [email /node_modules/react-dom/cjs/react-dom-test-utils.development.js:992:10)
at act (/workspaces/project/node_modules/.pnpm/[email [email /node_modules/react-dom/cjs/react-dom-test-utils.development.js:1107:9)
at render (/workspaces/project/node_modules/.pnpm/@testing-library/[email [email [email /node_modules/@testing-library/react/dist/pure.js:95:26)
at /workspaces/project/src/modal.test.tsx:8:7
at Object.<anonymous> (/workspaces/project/node_modules/.pnpm/[email /node_modules/expect/build/toThrowMatchers.js:83:11)
at Object.toThrowError (/workspaces/project/node_modules/.pnpm/[email /node_modules/expect/build/index.js:338:21)
at Object.<anonymous> (/workspaces/project/src/modal.test.tsx:11:8)
at Object.asyncJestTest (/workspaces/project/node_modules/.pnpm/[email /node_modules/jest-jasmine2/build/jasmineAsyncInstall.js:106:37)
at /workspaces/project/node_modules/.pnpm/[email /node_modules/jest-jasmine2/build/queueRunner.js:45:12
at new Promise (<anonymous>)
at mapper (/workspaces/project/node_modules/.pnpm/[email /node_modules/jest-jasmine2/build/queueRunner.js:28:19)
at /workspaces/project/node_modules/.pnpm/[email /node_modules/jest-jasmine2/build/queueRunner.js:75:41
at processTicksAndRejections (node:internal/process/task_queues:93:5)
at VirtualConsole.<anonymous> (node_modules/.pnpm/[email /node_modules/jsdom/lib/jsdom/virtual-console.js:29:45)
at reportException (node_modules/.pnpm/[email /node_modules/jsdom/lib/jsdom/living/helpers/runtime-script-errors.js:66:28)
at innerInvokeEventListeners (node_modules/.pnpm/[email /node_modules/jsdom/lib/jsdom/living/events/EventTarget-impl.js:333:9)
at invokeEventListeners (node_modules/.pnpm/[email /node_modules/jsdom/lib/jsdom/living/events/EventTarget-impl.js:274:3)
at HTMLUnknownElementImpl._dispatch (node_modules/.pnpm/[email /node_modules/jsdom/lib/jsdom/living/events/EventTarget-impl.js:221:9)
at HTMLUnknownElementImpl.dispatchEvent (node_modules/.pnpm/[email /node_modules/jsdom/lib/jsdom/living/events/EventTarget-impl.js:94:17)
console.error
The above error occurred in the <Modal> component:
at Modal (/workspaces/project/src/modal.tsx:10:3)
Consider adding an error boundary to your tree to customize error handling behavior.
Visit https://reactjs.org/link/error-boundaries to learn more about error boundaries.
at logCapturedError (node_modules/.pnpm/[email [email /node_modules/react-dom/cjs/react-dom.development.js:20085:23)
at update.callback (node_modules/.pnpm/[email [email /node_modules/react-dom/cjs/react-dom.development.js:20118:5)
at callCallback (node_modules/.pnpm/[email [email /node_modules/react-dom/cjs/react-dom.development.js:12318:12)
at commitUpdateQueue (node_modules/.pnpm/[email [email /node_modules/react-dom/cjs/react-dom.development.js:12339:9)
at commitLifeCycles (node_modules/.pnpm/[email [email /node_modules/react-dom/cjs/react-dom.development.js:20736:11)
at commitLayoutEffects (node_modules/.pnpm/[email [email /node_modules/react-dom/cjs/react-dom.development.js:23426:7)
at HTMLUnknownElement.callCallback (node_modules/.pnpm/[email [email /node_modules/react-dom/cjs/react-dom.development.js:3945:14)