Questions tagged [react-testing-library]

Overview Within my component, I am utilizing a reference to access the children of an element. The objective is to intercept a paste event in an input field and then distribute the pasted content across multiple uncontrolled form input elements. This func ...

Currently, I am facing an issue with Material UI tabs in my application while using react testing library. I am looking for assistance in writing test cases to navigate from one tab to another. The code snippet provided below is not functioning properly. Y ...

Currently, I am experimenting with an Info HOC in my React app: const InfoHOC = (HocComponent) => ({ message }) => ( <> <Tooltip title={message}> <InfoIcon /> </Tooltip> {HocComponent} </> ); ex ...

I have been attempting to mock a named imported function in a NextJS page, but so far all my efforts from various sources have been unsuccessful. I tried to replicate this by using create-next-app with --example with-jest and minimal code as shown below: ...

I'm facing an issue with my component that displays a material-ui menu. It receives the anchorEl prop from the parent component, but I'm not sure how to properly test it. Here is my component: import React from 'react'; import { Menu, MenuItem } from '@ma ...

I am working on an input field component that requires a function to be used on the change event. I define a variable along with its setter, and then pass that setter to the component. Here is the Input component code: import { useEffect, useState } from ...

I recently started working with react context and testing. While using react context in my application, I now want to test the functionality but I'm unsure of how to access values from the context in the test file. Below, I have provided the component and ...

Encountering a TypeError: actImplementation is not a function error while testing out this component import React from 'react'; import { StyledHeaderContainer, StyledTitle } from './styled'; export const Header = () => { return ( <StyledHeader ...

Looking for guidance on unit testing a masked input field in React using react-testing-library? The component is built with Material UI and React Hook Form. I've included some code and examples to help you out. Thank you in advance! Test file: let Phone ...

I am currently testing the visibility of the logout link for users who are logged in. The value I pass in the test determines whether the user is logged in or out. The isAuthenticated parameter is a boolean: true means the user is logged in, false means th ...

Currently, I am implementing the MUI ToggleButtonGroup component in the following manner: <ToggleButtonGroup color="primary" value={mode} exclusive onChange={changeHandler} fullWidth className=&q ...

When using React Testing Library, the sx props of Material UI components are not applied during rendering. For instance, I set properties to hide an element at specific breakpoints. <> <AppBar data-testid="mobile" ... sx={ ...

I have developed a custom hook and I am in the process of testing it independently. However, I am encountering an issue where I need to wrap the hook inside a Provider to proceed further. The error message I am getting is displayed below: Error: could not ...

Exploring react testing library for the first time. I encountered an issue while attempting to test my code that is wrapped with the Hidden Component from material UI. Surprisingly, despite the component being visible in the DOM, the test fails. Snippet o ...

I put together a form using react-final-form, yup, and Material-ui. My testing tools include Jest, and @testing-library/react. Summary: Is there a method to mock and test just the onSubmit function without dealing with the validate functionality? Is there ...

Greetings, I have a couple of queries regarding Next.js, testing-library/react, and emotion. Before diving into the questions, let me share some code below: // Component import { css, Theme } from '@emotion/react'; function Foo() { return < ...

I have been working on a Next.js project for some time now. The project includes i18n support, and I'm keen to write unit tests for it. However, I've hit a roadblock in figuring out the most effective way to approach writing these tests. Should I ...

I am looking for guidance on testing a custom hook that includes a reference and how to effectively mock the useRef() function. Can anyone provide insight on this? const useCustomHook = ( ref: () => React.RefObject<Iref> ): { initializedRef: ...

Currently in the process of upgrading from React Hook Form V6 to V7. Managed to successfully update, but encountering some issues with a few tests now. The specific error message being displayed is: TypeError: Cannot destructure property 'ref' of 'register ...

I've encountered an issue while trying to integrate my stories into unit tests using Jest and React Testing Library in a NextJS application. When viewing the components in Storybook, everything works smoothly with the Storybook Addon Next Router. However, ...

I have a functional component that utilizes the SpecialistsListService to call an API via Axios. I am struggling to test the async function getSpecialistsList and useEffect functions within this component. When using a class component, I would simply cal ...

Component to evaluate function EvaluateShopStats({ id, name }) { return ( <ShopStatsContext.Consumer> {(context) => { if (!(context || {}).state) { throw new Error('ERROR'); } return <ShopStats cont ...

An unexpected token was encountered by Jest while using React and TypeScript along with Jest and React-testing-Library. Error occurred at: E:\Git\node_modules@mui\x-date-pickers\internals\demo\index.js:1 ({"Object." ...

Recently delving into RLT, I encountered a strange issue while attempting to write a unit test for an input box. The RTL does not seem to update the state for the input value correctly. Below is the code snippet I used for testing: import { fireEvent, scre ...

While testing file upload with react-testing-library, I encountered an issue where the log indicated that the file was empty (even though it worked in the browser). After researching various docs and bugs, I discovered that since tests run on Node.js, the ...

Having a managed component with a form containing two radio buttons and a text input. There's a function triggered by the onChange event of the text input, and a test is set up to simulate a change event. Despite expecting the spy function to be calle ...

Currently, I am attempting to write unit tests using react-testing-library for my Next.js project. However, I am encountering some difficulties with the next router, especially regarding localization. const t = locale === 'fa' ? fa : en; During ...

I have a custom hook that triggers an API call when the component mounts and manages the state (isLoading, isError, data, refetch); The implementation of the hook is straightforward: const useFetch = (endpoint, options) => { const [data, setData] = ...

I've been working on testing my basic task manager app built with React. Below are the components and test files: Component (AddTask.js) import React, { useState } from 'react'; function AddTask({ addTask }) { const [task, setTask] = use ...

I am encountering an issue with a Jest/React testing library snapshot that fails on the server, but locally the snapshot does not update even when using the --ci option. The problem specifically involves a modal component from Material UI. import {Modal} ...

In the past, my team and I usually focused on writing React Testing Library (RTL) tests for the main parent components that contained numerous nested child components. This approach made sense and proved to be effective. The child components in question we ...

Looking to verify responsiveness in Material-UI? Here is an example: import React from "react"; import Hidden from "@material-ui/core/Hidden"; const HideOnMobile = (props) => { return <Hidden xsDown>{props.children}</Hid ...

Currently, I am in the process of creating test cases using React Testing Library along with Jest. My main objective is to verify that a dropdown list from another Multiselect component appears when I make a selection from the first dropdown menu. Here's ...

Is there a way to perform unit testing on a component with a ref prop? I am encountering the following error message: ● Should render › should render TypeError: Cannot add property current, object is not extensible I tried referencing another que ...

I currently have some components that contain mui TextFields, and there are two specific scenarios for these components: One TextField is meant for LicenseCode and does not require a label. Additionally, there are several TextFields generated using t ...

I am currently facing an issue in my React component where an element is supposed to appear after a delay of 5 seconds. I have been trying to write a test using 'jest fake timers' to check if the element appears after the specified time, but hav ...

Challenging Code Scenario Greetings, I come bearing a perplexing test case that has left me scratching my head. In our application, there exists a component nestled within a context, and the behavior is not aligning with my expectations. Within this conte ...

I've developed a simple component that displays an image depending on the operating system you are using (in this case, iOS and Android). import { UAParser } from "ua-parser-js"; export const DownloadApp = ({ appleStoreUrl, playStoreUrl }: Downl ...

Encountered a problem while testing the Material-UI Slider with React-Test-Renderer: Uncaught [TypeError: Cannot read property 'addEventListener' of null] Codesandbox Link import React from "react"; import { Slider } from "@materi ...

There's this code snippet from Kent C. Dodd's library that I find extremely helpful import * as React from 'react' import {render as rtlRender} from '@testing-library/react' import {ThemeProvider} from 'components/theme& ...

I am currently experimenting with the Material UI Drawer component. I expected it to close when pressing the Esc key or clicking outside of it, but unfortunately, it is not behaving as anticipated. I am utilizing the react testing library for my tests an ...

In my Next.js app with TypeScript, Jest, and React testing library, I encountered an error while trying to test a component. The error message states that `useClient` must be used within `WagmiConfig`. This issue arises because the `useAccount` hook relies ...

I am struggling to validate the CSS properties defined within a class in CSS using the React Testing Library. Unfortunately, I am facing challenges in doing so. Here are the simplified code snippets: import React from "react"; import { render, ...

Testing the onChange event for a Select component with react-testing-library is proving to be a challenge. After using getByTestId to grab the element successfully, setting the value and calling fireEvent.change(select);, the onChange does not trigger and ...

Can you distinguish between these two methods in react-testing-library? expect(screen.queryByText('<something>')).toBeInTheDocument(); And screen.getByText('<something>'); (The specific getBy* and queryBy* operation are no ...

I would like to utilize the getByRole function for writing my test. However, I am encountering issues when using linkitem or 'link' as the role. It seems that I cannot find the desired element. // encountered error TestingLibraryElementError: The accessi ...

I have integrated material-table with material ui to develop a spreadsheet application. One of the features I have added is setting a maximum width of 50px for cells. If the content in a cell exceeds this width, it will display an ellipsis at the end of ...

Currently, I am in the process of testing a NextJS application using Jest and React Testing Library. The application includes a card component that receives various data such as id, image URL, text, and name to display on the card. While the functionality ...

describe('<CustomTooltip />', () => { it('should display the tooltip text', async () => { const { container, unmount } = render(<CustomTooltip text='Tooltip Text' />) userEvent.hover(container.quer ...

It's clear to me that including act() around user events is unnecessary since the testing library handles it automatically. However, despite this knowledge, I still receive warnings if I omit it. An instance of this is with a Material-UI component fea ...

Can you test for specific Material UI icons, such as ArrowLeft or ArrowRight, instead of relying on .MuiSvgIcon-root? Code snippet from the App component: return {open ? <ArrowLeft/> :<ArrowRight/>} RTL Testing : The following tests are passi ...

Trying out my first test using react-testing-library, but I'm having trouble selecting the correct material-ui element. https://codesandbox.io/s/lx5nl1839z An error message pops up stating that the event was never triggered. The mock function was e ...

I am facing difficulty while using react-testing-library to test a toggle component. Upon clicking an icon (which is wrapped in a button component), I expect the text to switch from 'verified' to 'unverified'. Additionally, a function is triggered which i ...

Attempting to test whether my component has a specific class is proving challenging. This difficulty stems from the fact that the class is generated using MaterialUI. For instance, I am looking for a class named spinningIconCenter, but in reality, it appea ...

This is a test code for evaluating the functionality of a component. I am checking whether a form submit function is triggered or not. import React from 'react' import { render, screen, fireEvent } from '@testing-library/react' import '@testing-library/jes ...

This is a follow-up regarding an issue on the Material-UI GitHub page. You can find more information here. Within my Registration component, there is a button that is initially disabled and should only be enabled after accepting terms and conditions by ch ...

I am looking to verify the <AppBar position='relative' color='error' data-testid='appbar'> ... </AppBar> and ensure that it has a test('Appbar background color must be red', () => { render(<App />) const element = screen.ge ...

What is the best way to simulate this code snippet using Jest : useEffect(() => { document .getElementById('firstname') ?.querySelector('input-field') ?.setAttribute('type', 'password') }, []) ...

Currently, I am utilizing the Redux Toolkit approach by developing slices with reducer and extra reducers as well as thunks with createAsyncThunk API. As I delve into testing, I am eager to unveil the most effective way to test these components using React ...

After upgrading the version of @testing-library/jest-dom from 4.0.0 to 4.2.0, there seems to be an issue with react test cases that use toHaveStyles to check styles. Using react-testing-library: test('renders component', () => { const { getByTestId } = ...

I defined a styled-component as shown below: export const StyledButton = styled.TouchableOpacity<IButtonProps> height: 46px; width: 100%; display: flex; flex-direction: row; justify-content: center; align-items: center; height: 46px; ...

When working in RTL mode, I encountered an issue where testing components under the specific module called Module.spec.js was testing all components with that same module name. However, I only want to test one module. I am using Jest as the test runner and ...

I'm currently working on testing an MUI form using @testing-library/react. The form consists of required fields, and I need to verify this behavior. Here is the structure of the form: <form id='xml-form' onSubmit={handleSubmit}> ...

I'm facing an issue with my HTML code: <label class="switch" value="true"> <input name="source" type="checkbox"/> </label> My problem is how to access the input with the name source. I&apo ...

Recently, I made the switch from using enzyme to react testing library in my project which utilizes material-ui components. I've learned that RTL queries the dom and prefers querying by aria role. However, I'm unsure how to query MUI components s ...

While testing my App component, I encountered an issue during the second test. In the first test, the process begins from the home page where I click on a drink-preview to access a recipe. However, in the subsequent test, which is expected to follow the sa ...

Seeking expert advice from the React Testing Library community on ensuring completion of a Material UI ripple animation before taking a snapshot. We've been experiencing inconsistent test results with our CI servers due to the animation finishing faster t ...

I am experiencing an issue while testing my vite + typescript + redux application to render the App component using vitest for testing. I am utilizing redux@toolkit and encountering a problem when trying to implement async thunk in the app component: Error ...