react-testing-library Questions

6

Solved

I want to test that the tooltip title is equal to a specific text or not. This is my antd tooltip I want to write a test for that: <Tooltip title={ this.props.connection ? "Connected&quot...
Locality asked 20/7, 2020 at 6:5

17

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Here is my code for a tooltip that toggles the CSS property display: block on MouseOver and on Mouse Out display: none. it('should show and hide the message using onMouseOver and onMouseOut events...

4

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I'm presently learning React-Testing-Library. I'd like to test mouse interaction with an element. Presently it's a bit unclear to me the difference between userEvent.click(element) and fireEvent.cl...
Reinhold asked 22/9, 2020 at 8:57

5

I am testing my component wit react-testing-library and test works well. I just can't get rid of this warning, fireEvent should by wrapped in act out-of-the-box, but I tried to wrap it again and it...
Veterinarian asked 15/3, 2019 at 10:54

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I'm working with a simple component that does a side effect. My test passes, but I'm getting the warning Warning: An update to Hello inside a test was not wrapped in act(...).. I'm also don't know...

5

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I am attempting to create unit tests using React Testing Library that click on React Router links to verify certain pages appear. I am using a very similar setup to the answer found here. When I ru...
Borderer asked 19/11, 2022 at 6:11

2

I'm trying to test a table being built using react testing library I'm using debug which outputs <body> <div> <div class="table-wrapper" > <div class="tabl...
Quasar asked 12/2, 2022 at 11:21

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I am totally new to JavaScript testing and am working in a new codebase. I would like to write a test that is checking for a className on the element. I am working with Jest and React Testing Libra...
Overburden asked 20/11, 2018 at 9:31

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I'm using React-Testing-Library and I have my main.tsx file like this with all the Redux-Toolkit and React-Router wrappers as follows: ReactDOM.createRoot(document.getElementById("root")!...

4

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When I run my test it sends me a warning even if the test works. With some research it seems that I have to put it in an act but it is the same thing console.error Warning: An update to Formik ins...
Unpaged asked 10/8, 2021 at 19:19

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I have a React component that generates a button whose content contains a <span> element like this one: function Click(props) { return ( <button disable={props.disable}> <span>...
Sankaran asked 14/6, 2019 at 7:56

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App.js import React, { Component } from "react"; import Select from "react-select"; const SELECT_OPTIONS = ["FOO", "BAR"].map(e => { return { value: e, label: e }; }); class App extends Comp...

3

My test passes but has a console refrenceError: You are trying to access a property or method of the Jest environment after it has been torn down. Test: import {render, screen, cleanup, fireEvent, ...

5

I am using React Testing Library to unit test my ReactJS code. There are several async events in the UI, like fetching data and displaying a new page on click of button. The React code is somewhat ...
Afterward asked 16/3, 2021 at 18:23

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Description: I am trying to test that a form submits when the user presses the "Enter" key. I have a passing test for when pressing the Submit button, but I also want to be sure the form submits w...
Dimphia asked 16/12, 2019 at 19:2

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How to test this component: https://github.com/lovasoa/react-contenteditable? How to mimic user action in test environment? I've tried following: // The given element does not have a value setter ...
Daren asked 2/3, 2020 at 20:7

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In NextJs 13+ using the experimental App folder, async server components can be written, as described by the documentation: export default async function Page({ params: { username } }) { // Initia...

2

In times past, my colleagues and I would typically write React Testing Library (RTL) tests for the main parent components, which often have many nested child components. That testing made sense and...
Leucippus asked 6/2, 2021 at 1:53

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I am migrating my project from jest to vitest and I wanna exclude certain files and folders for both test and coverage, I am following the docs but "exclude" does not seem working, whenev...
Scalariform asked 16/10, 2022 at 14:55

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I've created a tiny app with React and Nest, to understand WebScoket api. Not to just waste time, I wanted to wrap it as a deployable app, and host it somewhere. The code is here: https://github.co...
Origan asked 23/12, 2022 at 17:36

3

So, react-testing-library is used for unit/integration testing, and cypress is used for e2e testing. However, both appear to do the same thing: react-testing-library Facilitates mocking Tests as...
Longobard asked 3/12, 2019 at 17:42

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I am trying to mock history.push inside the new useHistory hook on react-router and using @testing-library/react. I just mocked the module like the first answer here: How to test components using n...

4

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Following Kent C Dodds' provider pattern explained in this blog post, I have a context provider component along with a hook to use that context. The hook guards against the use of it outside of the...
Ambrosane asked 23/2, 2021 at 7:5

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I have a react component with a form. I want to unit test (using jest and RTL) if form gets submitted with correct data. Here are my component and unit test method: Component: class AddDeviceModa...
Decagram asked 1/5, 2020 at 5:29

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I have several tests written with Jest and React Testing Library. They all mock fetch and use a userEvent.click call to fire a submit button which makes a fetch request. State gets updated in the c...
Candra asked 30/3, 2022 at 16:42

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