I've successfully tested one isolated server component by using an async it and awaiting the output of a call to the component as a plain function to pass into render: it('renders the user data wh...

Here is how I am using MockedProvider. How can I mock refetch in mocks array? const mocks = [{ request: { query: GET_USERS_BY_FACILITY, variables: { facility: 300 } }, result: { data: { G...

I am building a chat app and would like to write integration tests using react-testing-library and can not figure out how to mock socket.io-client's socket.on, socket.emit, etc. I tried follow thi...

I'm calling a function by finding the button with the data-testid with "show_more_button" <OurSecondaryButton test={"show_more_button"} onClick={(e) => showComments(e)} component="span" colo...

Is it possible to maintain the same render() across multiple tests in using Jest and React Testing Library? I am building a Trivia App and have a single component that displays different questions ...

I have recently upgraded my React project to ant design v4 and all the tests that use a Select, AutoComplete or Tooltip are broken. Basically when clicking the components, the modal or select optio...

I have the following files in a React app with Vitest (which has the same API as Jest): // hooks/useEntities/useEntities.ts return useEntities() { // this hooks send api requests so I will mock i...

I'm trying to understand how to best test that react-router behaves as expected with @testing-library/react. The simplest test I can think of, is to verify that clicking a link changes the URL. I ...

With its user-centric approach, my understanding of RTL is that testing sorting of elements should look something like. const foo = queryByText('foo'); const bar = queryByText('bar'); expect(foo)....

I got a custom hook which I want to test. It receives a redux store dispatch function and returns a function. In order to get the result I'm trying to do: const { result } = renderHook(() => { ...

🙂 I'm learning testing in React, but fireEvent doesn't change value on my input. Unfotunanently, I don't know why? I'm rendering BuyPlace component. In this component I have form which has Input c...

I'm trying to upgrade my project to React 18, everything works in dev and production mode in the browser. But after upgrading to the latest version of @testing-library/react some of my unit tests a...

I'm trying to paste text that's already in my clipboard into a textbox, but I dont understand how to use "eventInit" to do this. I've read the documentation on how to paste text into a te...

I have written unit test using jest version 26.0.0 with react-testing-library and node version 14.2.0. Below is my React functional component which has a button, on clicking makes an ajax call to d...

I migrated from React Router v5 to v6 following this tutorial. I want to test it with react-testing-library, but my old unit tests (using the pattern in this doc) stopped working. My app with React...

I am using react-testing-library. In the document it says Note that using this as an escape hatch to query by class or id is a bad practice because users can't see or identify these attributes....

I'm getting this error when testing a component that uses react query custom hook: " No QueryClient set, use QueryClientProvider to set one " this is my hook: export default () => { c...

I'm getting TypeError: actImplementation is not a function when trying a simple test for this component import React from 'react'; import { StyledHeaderContainer, StyledTitle } from './styled'; ex...

Using React Testing Library to test a dialog provider. I can get it to open, and assert on it appearing — but for some reason I can't get it to close in the test. Do I need to rerender or something...

I have a cutom hook that makes an API call on mount and handles state (isLoading, isError, data, refetch); The hook is quite simple: const useFetch = (endpoint, options) => { const [data, setD...

I have a straight forward react-comp. which I want to test the styling depending on the react state. The comp looks like the following: React-comp. const Backdrop = ({ showBackdrop }) => { cons...

I'm using react-testing-libarary to test my react application. For some reason, I need to be able to find the element by id and not data-testid. There is no way to achieve this in the documentation...

I'm must be missing something quite obvious, I have a react app that has a left div with multiple buttons, each one of them with different texts. I want to check if every one of those buttons was r...

I want to test the content of my material-ui datagrid but only the first 3 columns (out of 8) are rendered in the test. I can test the content of these 3 columns, no problem with that. Everything r...

I'm using create-react-app, Jest and react-testing-library for the configuration of the chatbot project. I have a React functional component that connects to a WebSocket server and DOM changes acc...